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压缩软件 7-Zip 23.01

经典软件 wes 11个月前 (06-01) 385次浏览

7-zip目前最新版本是 7-zip 23.01,有简体中文版。

        7-Zip 是一款 开源 软件。大多数源代码都基于 GNU LGPL 许可协议下发布。AES 代码基于 BSD 许可下发布。unRAR 代码基于两种许可:GNU LGPL 和 unRAR 限制许可。更多下许可信息请查看:7-Zip 许可

您可以在任何一台计算机上使用 7-Zip ,包括用在商业用途的计算机,不对 7-Zip 进行捐赠或支付并不影响您的使用。

7-Zip 主要特征

  • 使用了 LZMA 与 LZMA2 算法的 7z 格式 拥有极高的压缩比
  • 支持格式:
    • 压缩 / 解压缩:7z, XZ, BZIP2, GZIP, TAR, ZIP and WIM
    • 仅解压缩:ARJ, CAB, CHM, CPIO, CramFS, DEB, DMG, FAT, HFS, ISO, LZH, LZMA, MBR, MSI, NSIS, NTFS, RAR, RPM, SquashFS, UDF, VHD, WIM, XAR, Z
  • 对于 ZIP 及 GZIP 格式,7-Zip 能提供比使用 PKZip 及 WinZip 高 2-10% 的压缩比
  • 为 7z 与 ZIP 提供更完善的 AES-256 加密算法
  • 7z 格式支持创建自释放压缩包
  • Windows 资源管理器集成
  • 强大的的文件管理器
  • 更给力的命令行版本
  • 支持 FAR Manager 插件
  • 支持 87 种语言

7-Zip 适用于 Windows 10 / 8 / 7 / Vista / XP / 2016 / 2012 / 2008 / 2003 / 2000 / NT。

p7zip – Linux/Posix 平台的命令行移植版本。

https://www.7-zip.org/


【更新历史】>>>


7-Zip 更新记录
————-

23.00          2023-05-07
————————-
– 7-Zip 现在可以使用新的 ARM64 过滤器将文件压缩为 7z 和 xz 压缩包。 ARM64 过滤器可以提高压缩比,
  适用于包含为 ARM64(AArch64)架构编译的可执行文件的数据。另外,7-Zip 现在在压缩前解析可执行文件
  (有 exe 和 dll 文件名扩展名的文件),并为每个解析的文件选择合适的过滤器:
    – 对于 x86 可执行文件,使用 BCJ 或 BCJ2 过滤器;
    – 对于ARM64可执行文件,使用ARM64过滤器。
  以前的版本默认为所有 exe/dll 文件使用 x86 过滤器 BCJ 或 BCJ2。
– BCJ2 过滤器的默认段大小从 64 MiB 更改为 240 MiB。这可以提高大于 64 MiB 的可执行文件的压缩比。
– 改进了 UDF 的支持。
– cpio:支持硬链接。
– WIM 创建代码的一些更改和优化。
– 当新的 7-Zip 创建多卷压缩包时,7-Zip 仅保持仍可更改的卷处于打开状态。以前的版本在创建压缩包结束前,将所有卷保持在打开状态。
– 在 Linux 和 macOS 系统中,当 7-Zip 打开、提取或创建多卷压缩包时 7-Zip 现在可以减少同时打开的文件数量。
  这可以避免因卷数量较大而导致的失败,因为 Linux 和 macOS 中对单个程序允许打开的文件数量有限制。
– 7-Zip 在资源管理器中的上下文菜单的代码中有优化:
  在外部程序为包含 7-Zip 菜单命令的上下文菜单选择大量文件时,提高了准备菜单显示的速度。
– 7-Zip 文件管理器中的拖放操作的代码有所变动。现在在某些情况下也支持鼠标右键的拖放操作。
– 修复错误:
  – ZIP 压缩包:如果使用多线程 ZIP 压缩将多个文件压缩到 stdout 流(-so 选项),7-Zip 没有为某些文件写入「数据描述符」。
  – ext4 压缩包:7-Zip 无法正确从 ext4 压缩包中提取符号链接到目录。
  – HFS 和 APFS 压缩包:7-Zip 在压缩分叉中错误地解码了未压缩的块(64 KiB)。
  – 修复了其它已知错误。


22.01          2022-07-15
————————-
– UDF 格式支持已提升至 UDF 版本 2.60。
– 优化对 HFS 和 APFS 的支持。


22.00          2022-06-15
————————-
– 7-Zip 现在可以提取 APFS(Apple File System)镜像,可用于 DMG 文件中。
– 7-Zip 现在可以创建 POSIX(pax)tar 格式的 TAR 压缩包,使用开关
    -ttar -mm=pax 或 -ttar -mm=posix
– 7-Zip 现在可以在 tar/pax 压缩包中,以更高精度(Linux 中为 1 纳秒)存储额外的文件时间戳,
  使用以下开关:
    -ttar -mm=pax -mtp=3 -mtc -mta
– Linux 版本中为 TAR 压缩包添加了新的开关:
  -snoi:在压缩文件中储存拥有者/用户组的 id,或根据压缩文件为解压后的文件设置拥有者/用户组 id。
  -snon:在压缩文件中储存拥有者/用户组的名称。
– 新开关 -snz 用于将 Zone.Identifier 数据流传播至提取后的文件(Windows)。
– 新选项「传播 Zone.Id 数据流」, 位于 工具/选项/7-Zip 菜单。
– 「添加到压缩包」中的新增「选项」窗口允许选择压缩包中必须包含的元数据。
  同时也允许选择新增选项「不更改源文件最后访问时间」。
– 修复了已知错误。


21.07          2021-12-26
————————-
– 7-Zip 现在可以提取 VHDX 磁盘镜像(Microsoft Hyper-V 虚拟硬盘 v2 格式)。
– 新开关:-spm 以及 -im!{file_path} 用来排除在路径结尾中不包含路径分隔符的指定路径。
– 在「添加到压缩包」窗口中,现在允许使用 -m 前缀来指定「参数」(与命令行中的 -mparam 相同作用)。
– 在压缩包中,如果某些目录名的前缀与别的目录或文件名的前缀相同时,在进行排序的时候会有更一致的结果。
– 由 7-Zip 创建的 TAR 压缩包现在更加兼容 GNU TAR 程序。


21.06          2021-11-24
————————-
– 窗口「添加到压缩包」现在允许在压缩时设置内存(RAM)使用限制。
– 新开关 -mmemuse={N}g / -mmemuse=p{N} 用于压缩和解压缩时设置内存(RAM)使用限制。
– 修复 21.00 至 21.05 版本中的错误:
  7-Zip 没有在压缩包提取时正确地设置目录属性。
– 修复了已知错误。


21.04 beta     2021-11-02
————————-
– 现在在使用 LZMA2 大字典压缩时如果内存不足,7-Zip 会降低 CPU 线程的使用数量。
– 7-Zip 现在可以创建并检查「file.sha256」文件,这个特殊文件包含兼容 sha256sum 程序的文件名及其对应的 SHA-256 校验和。
  7-Zip 可以像处理压缩包一样校验这些文件。但并不会包括真正的文件数据。
  用于创建并测试「sha256」文件的上下文菜单命令:
    7-Zip  /  CRC SHA  /  SHA-256 -> file.sha256
    7-Zip  /  CRC SHA  /  测试压缩包 : 校验和
  对应的命令行版本:
    7z a -thash file.sha256 *.txt
    7z t -thash file.sha256
    7z t -thash -shd. file.sha256
  新开关 -shd{dir_path} 用于设置文件校验「file.sha256」执行「测试」操作时所用到的根目录。
  如果 -shd{dir_path} 未指定,7-Zip 将使用「file.sha256」所在的目录。
– 新开关 -xtd 用于在处理时排出指定目录项。


21.03 beta     2021-07-20
————————-
– 提升 LZMA/LZMA2 的最大字典大小至 4 GB(3840 MiB)。
– 略微优化 LZMA/LZMA2 的压缩速度。


21.02 alpha    2021-05-06
————————-
– 7-Zip 现在会为 UTF-8 编码的文件名写入额外的字段至 zip 压缩包中。
  这可以让 zip 压缩包在不同系统中提取时能得到正确的文件名。
– 发布 7-Zip macOS 版命令行工具。
– 提升 ARM64 macOS 及 Linux 版中 LZMA 及 LZMA2 解压缩速度 20%-60%
– 一些 ZIP、TAR 及 NSIS 代码的改动和更新。


21.01 alpha    2021-03-09
————————-
– 发布 7-Zip Linux 版命令行工具。
– 提升 ARM64 版本在 AES、CRC-32、SHA-1 及 SHA-256 硬件 CPU 指令集上的速度。
– 修复 18.02 至 21.00 版本中的错误:
  7-Zip 无法正确解压部分 xz 压缩算法创建的 ZIP 压缩包。
– 修复了已知错误。


21.00 alpha    2021-01-19
————————-
– 一些代码内部变动。
– 修复了已知错误。
– 新增本地化语言:Tajik(塔吉克语),Uzbek(乌兹别克语,西里尔字母书写)。


20.02 alpha    2020-08-08
————————-
– 7z 档案中每个固实块的 LZMA2 分块的默认数量已增加至 64。
  此改动可在拥有大量 CPU 核数和线程数的机器上提升大尺寸 7z 档案的压缩速度。
– PPMd 算法创建的 7z/ZIP/RAR 档案的压缩/解压缩速度提升。
– 新开关 -ssp。如果指定了 -ssp 开关,7-Zip 在创建档案和哈希运算时将不允许系统修改原文件的「最后访问时间」属性。
– 修复了已知错误。
– 新增本地化语言:Swahili(斯瓦希里语)。


20.00 alpha    2020-02-06
————————-
– 7-Zip LZMA/LZMA2 压缩算法现在支持新的可选匹配查找器:bt5 和 hc5,对于较多的冗余数据可提供比 bt4 和 hc4 更快的处理速度。
– 快速和极速压缩等级使用新的默认设置,优化压缩比:
   – 极速压缩等级(-mx1):hc5 匹配查找器与 256 KB 字典大小。
   – 快速压缩等级(-mx3):hc5 匹配查找器与 4 MB 字典大小。
– 对默认/最大/极限压缩等级下的多线程 LZMA/LZMA2 压缩进行微小的速度优化。
– bzip2 解码部分的代码更新,支持由 lbzip2 程序创建的 bzip2 档案。
– 修复了已知错误。
– 新增本地化语言:Turkmen(土库曼语)。


19.02 alpha    2019-09-05
————————-
– 7-Zip 现在可以解压缩 Base64 编码的文件(b64 文件名扩展)。
– 7-Zip 现在可以使用由 AMD Ryzen 和 Intel Ice Lake 与 Goldmont 架构支持的 CPU 所提供的 SHA-1 以及 SHA-256 的 x86/x64 硬件指令。
  它可以提升:
    – SHA-1/SHA-256 的哈希值计算速度;
    – 加密/解密 AES zip 的速度;
    – 7z/zip/rar 档案中用于加密/解密的密钥派生速度。
– 对于 zip AES 加密以及 7z/zip/rar 的 AWS 解密的速度提升进行下列优化:
   – 7-Zip 现在可以使用由 Intel Ice Lake CPU 支持的全新 x86/x64 VAES(AVX Vector AES)指令。
   – 同时优化了现有的 x86/x64 AES-NI 代码。
– 7-Zip 的基准测试获得 2% 的解压缩速度优化。
– 修复了已知错误。


19.00          2019-02-21
————————-
– 加强 7z 档案的加密强度:
  随机初始化向量大小从 64 位增加至 128 位,并且对伪随机数生成器进行了优化。
– 修复了已知错误。


18.06          2018-12-30
————————-
– LZMA/LZMA2 压缩速度优化,速度提升 3-10%,以及细微的压缩比调整。
– 修复了已知错误。
– 修复了 7-Zip 18.02-18.05 引入的错误:xz 解码器存在内存泄漏的问题。
– 7-Zip 18.02-18.05 在创建 bz2 档案时只是用单 CPU 线程。


18.05          2018-04-30
————————-
– LZMA/LZMA2 的压缩速度提升:
  在最快/快速压缩等级下提升 8%;
  在标准/最大压缩等级下提升 3%。
– 7-Zip 现在将属性(信息)窗口以及 CRC/SHA 结果窗口显示为「列表视图」窗口而不是「信息盒子」窗口。
– zip、hfs 以及 dmg 相关代码小改进。
– 之前版本的 7-Zip 由于 Windows 10 的「大页面」bug 导致 7-Zip 无法正确的在「大内存页」选项下工作,现在的 7-Zip 将会在 Windows 10 修订版 1709(16299)之前的版本中默认不使用「大页面」来规避这个问题。
– 修复了 RAR 解压缩代码中漏洞(CVE-2018-10115)。
– 修复了已知错误。


18.03 beta     2018-03-04
————————-
– 单线程 LZMA/LZMA2 的解码速度在 x64 版本中提升了 30%,在 x86 版本中提升了 3%。
– 如果 LZMA2 流中包含多个独立数据块时 7-Zip 现在使用多线程进行 7z/LZMA2 解码。
– 如果 xz 流中包含多区块时 7-Zip 现在使用多线程进行 xz 解码。
– 新增本地化语言:Kabyle(卡拜尔语)。
– 修复了已知错误。


18.01          2018-01-28
————————-
– 7-Zip 现在可以解压缩使用 LZFSE 压缩算法的 DMG 压缩包。
– 7-Zip 现在不会允许对标有只读属性的压缩包进行更新操作。
– 修复以下错误:
  从使用 -si 开关进行解压缩时无法设置目录的时间戳。
– 修复了已知错误。


18.00 beta     2018-01-10
————————-
– 7-Zip 现在可以解压 OBJ/COFF 文件。
– 新增 -sse 开关,用来在 7-Zip 无法打开某些输入文件时停止创建压缩包。
– 修复了已知错误。


17.01 beta     2017-08-28
————————-
– LZMA2(xz 和 7z)多线程压缩现在有微小的速度提升。7-Zip 现在会使用额外的内存缓冲区用来进行多区块 LZMA2 压缩。CPU 利用率会稍微提升。
– 7-zip 现在默认创建多区块 xz 压缩包。区块大小可以通过 -ms[Size]{m|g} 开关进行指定。
– xz 解码器现在可以从多区块 xz 压缩包中解压随机区块。7-Zip 文件管理器现在可以打开嵌套的多区块 xz 压缩包(例如 image.iso.xz)而不需要完整的解压整个 xz 压缩包。
– 7-Zip 现在可以从 stdin 到 stdout 输出创建 zip 压缩包。
– 7-Zip 命令行:@listfile 现在出现在 — 开关后无效。
  在 — 开关之前使用 -i@listfile。
– 修复以下错误:
  当使用命令行包含文件通配符以及 -sns 开关时,7-Zip 可能会添加并不需要的交替数据流到 WIM 压缩包中。
  7-Zip 17.00 beta 使用命令行将对立项目写入 7z 压缩包时导致程序崩溃。
  7-Zip 17.00 beta 会无视「使用大内存页」选项。


17.00 beta     2017-04-29
————————-
– ZIP 解压缩代码优化。
– 7-Zip 现在从压缩包中提取文件时会在写入文件之前保留文件所需占用的空间。可以减少文件碎片。
– 修复了 7-Zip 在某些情况下会导致程序崩溃的错误。
– 代码内部改动。


16.04          2016-10-04
————————-
– 修复了 7-Zip 16.03 exe 安装包在 Vista 下无法在开始 / 所有程序中创建快捷方式的问题。
– 修复了 RAR 代码中的一些错误。


16.03          2016-09-28
————————-
– 安装包和 SFX 模块现在增加了一些 DLL 注入攻击的保护措施。
– 修复了 7z、NSIS、SquashFS、RAR5 以及其他代码中的错误。


16.02          2016-05-21
————————-
– 7-Zip 现在可以提取多卷 ZIP 压缩包(z01、z02、…、zip)。
– 修复了已知错误。


15.14          2015-12-31
————————-
– 7-Zip 文件管理器:
  – 优化「从压缩包打开文件」操作的相关代码。
  – 优化「工具/选项」窗口的相关代码。
  – 修复 bug:在打开的压缩包中执行拖拽操作至资源管理器时,包含错误的鼠标指针监听事件。
– 修复了已知错误。
– 新增本地化语言:Yoruba(约鲁巴语)。


15.12          2015-11-19
————————-
– 发布稳定版。


15.11 beta     2015-11-14
————————-
– 修复了已知错误。


15.10 beta     2015-11-01
————————-
– 修复 9.21 至 15.09 版本中的 bug:
  在「添加到压缩包」窗口和命令行版本中(-m 选项),使用 gzip 或 bzip2 格式压缩文件会导致 7-Zip 忽略部分参数。
– 修复了已知错误。


15.09 beta     2015-10-16
————————-
– 7-Zip 现在可以解压缩 ext2 以及多卷 VMDK 镜像。
– 修复了已知错误。


15.08 beta     2015-10-01
————————-
– 7-Zip 现在可以解压缩 ext3 以及 ext4(Linux 文件系统)镜像。
– 修复了已知错误。


15.07 beta     2015-09-17
————————-
– 7-Zip 现在可以解压缩 GPT 镜像以及单文件的 QCOW2、VMDK、VDI 镜像。
– 7-Zip 现在可以解压缩 LZMS 压缩算法的固实 WIM 压缩包。
– 修复了已知错误。


15.06 beta     2015-08-09
————————-
– 7-Zip 现在可以解压缩 RAR5 压缩包。
– 7-Zip 现在在添加文件到固实 7z 压缩包时,不会按文件类型对文件进行排序。
– 新增 -mqs 选项,允许在添加文件到固实 7z 压缩包时,按文件类型对文件进行排序。
– 修复 7-Zip 文件管理器中的 bug:
  7z 压缩包的「移动」操作不会删除空文件。
– 修复 15.05 版本中的 bug:
  命令行版本中,使用 -so 选项会在 stdout 流中添加多余的字符。
– 修复 9.30 至 15.05 版本中的 bug:
  7-Zip 无法打开多卷 RAR 自释放压缩包。
– 修复了已知错误。


15.05 beta     2015-06-14
————————-
– 7-Zip 现在使用全新的安装包。
– 7-Zip 现在可以使用 LZMA/LZMA2 创建字典文件等于 1536 MB 的 7z、xz 和 zip 压缩包。
– 7-Zip 文件管理器现在可以处理 NTFS 的交替数据流。该功能位于「文件 – 交替数据流」。
– 7-Zip 现在可以提取使用 xz 算法压缩的 .zipx(WinZip)压缩包。
– BCJ2 过滤器新增可选参数「章节大小」,可以提升部分压缩比。
  举例:-mf=BCJ2:d9M,如果在文件中最大的可执行章节小于 9 MB。
– BCJ2 过滤器、SHA-1 以及 SHA-256 计算速度优化。
– 控制台版本现在使用 stderr 流显示错误信息。
– 控制台版本现在默认只在进度条中显示已处理的文件。
– 新增 -bb[0-3] 选项用于设置日志输出等级。-bb1 只记录被处理文件的。
– 新增 -bs[o|e|p][0|1|2] 选项用于设置输出信息的形式;
      o:输出,e:错误,p:进度条;0:禁用,1:stdout,2:stderr。
– 新增 -bt 选项用于显示执行时间的统计信息。
– 新增 -myx[0-9] 选项可以设置文件分析级别。
– 新增 -mmtf- 选项可以设置过滤器的单线程模式。
– 修复错误:
  7-Zip 在提取 WIM 压缩包时无法恢复 NTFS 权限。
– 修复错误:
  命令行版本:如果命令行中含有命令「rn」(重命名)并且用了至少两组路径,7-Zip 只使用第一组用来重命名。
– 修复错误:
  7-Zip 使用 ZIP/LZMA/AES/AES-NI 时崩溃。
– 修复 15.01 至 15.02 版本中的 bug:
  如果使用 ZipCrypto 算法 7-Zip 会创建错误的 ZIP 压缩包。
  7-Zip 9.20 可以提取错误创建的 ZIP 压缩包。
– 修复了已知错误。


9.38 beta      2015-01-03
————————-
– 修复了已知错误。


9.36 beta      2014-12-26
————————-
– 修复命令行版本中的错误:
  如果 -w{Path} 选项未指定,7-Zip 在更新压缩包时会在当前文件夹下创建临时档案,修复后 7-Zip 会在包含被更新压缩包所在位置创建临时档案。
– 修复 9.33 至 9.35 版本中的 bug:
  在创建 7z 或 gz 压缩包时,7-Zip 悄悄的忽略发生读取错误的文件,并在压缩包中创建不完整的带错文件。修复后 7-Zip 会中止压缩包创建并报告错误。
– 修复了已知错误。


9.35 beta      2014-12-07
————————-
– 修复错误:
  如果 CPU 超过 64 线程,创建 ZIP 压缩包会导致 7-Zip 无响应。
– 修复 9.31 至 9.34 版本中的 bug:
  7-Zip 无法正确提取尺寸大于 4 GB 的 ISO 档案。
– 修复 9.33 至 9.34 版本中的 bug:
  选项「压缩共享文件」以及 -ssw 选项无效。
– 修复 9.26 至 9.34 版本中的 bug:
  在「平铺模式」模式下打开部分压缩包会导致 7-Zip 文件管理器无响应。
– 修复了已知错误。


9.34 alpha     2014-06-22
————————-
– 修复 9.33 版本中的 bug:
  – 如果排除文件名选项(-x)中含有相对路径,并且绝对路径中包含该文件名时,命令行版本无法正常工作。
– 修复 9.26 至 9.33 版本中的 bug:
  – 7-Zip 无法打开个别又非 7-Zip 创建的 7z 压缩包。
– 修复 9.31 至 9.33 版本中的 bug:
  – 7-Zip 使用 -tcab 选项时无响应。


9.33 alpha     2014-06-15
————————-
– 7-Zip 现在可以在资源管理器菜单中显示图标。
– 「添加到压缩包…」对话框:
  – 新增选项「路径模式」。
  – 新增选项「操作完成后删除源文件」。
  – 新增选项「NTFS」,支持 WIM 以及 TAR 格式。
    – 保存符号链接
    – 保存硬链接
    – 保存交替数据流
    – 保存文件安全设置
– 「提取文件…」对话框:
  – 新增可选选项:指定输出文件夹名称。
  – 新增选项「排除根目录重复文件」。
  – 「路径模式」中新增选项「绝对路径」。
  – 新增选项「恢复文件安全设置」(仅 WIM 格式可用)。
– 7-Zip 文件管理器:
  – 新增「文件 – 链接…」对话框,可用于创建符号链接、硬链接。
– 命令行版本:
  – 新增 -spd 选项,用于禁用文件名的通配符匹配。
  – 新增 -spe 选项,用于在使用提取文件命令时排除根目录的重复项。
  – 新增 -snh 选项,用于保存硬链接(仅 WIM、TAR 格式可用)
  – 新增 -snl 选项,用于保存符号链接(仅 WIM、TAR 格式可用)
– 增强对 NSIS 格式的支持
– 修复以下问题:
  – 当使用命令「extract to \*」提取多个在 PE(EXE)文件中的档案时可能会导致输出到同一目录。
– 修复 9.31 至 9.32 版本中的 bug:
  – 当被提取档案无法打开时,命令行版本的测试和提取命令返回 0 作为退出状态
– 修复以下错误:
  – 除了 7z 格式外,如果被压缩文件中包含对立项目,7-Zip 则无法创建压缩包。
– 修复了其他已知错误。
– 新增本地化语言:Mongolian script(传统蒙古字)。


9.32 alpha     2013-12-01
————————-
– 7-Zip 现在可以创建 7z 格式的多卷 SFX 压缩包。
– 增强对 ZIP、NSIS、HFS 以及 AR 格式的支持。
– 7-Zip 现在支持大于 4 GB 的 ISO 文件。
– 通过增强 BCJ2 过滤器,提高 7z 格式对大于 16 MB 的可执行文件的压缩比(适用于 EXE 和 DLL 文件,在最高压缩比下有效)。
– 增强对大于 260 字符的路径名的支持。
– 通过右键菜单可以直接校验文件的 CRC 和 SHA。
– 7-Zip 文件管理器在按名称排序时,会以文件名中的数字进行参考。
– 7-Zip 文件管理器现在默认使用内存缓冲器来打开压缩包,来代替之前创建临时文件的方法。前提条件是压缩包的临时文件小于内存的 1/4。
– 7-Zip 文件管理器新增「解析」功能,可以通过右键菜单「打开压缩包 > #」直接对压缩包的格式进行猜测并尝试读取。
– 命令行版本:
  – 新增 -t# 选项,用于通过「解析」模式读取压缩包中的内容。
  – 新增 -stx{Type} 选项用来排除使用中的压缩包类型。
  – -scs 选项现在支持 UTF-16 编码。
  – 现在命令执行完成后会显示时间以及内存使用统计信息。
– 修复以下错误:
  – 7-Zip 9.30 以及更低的版本:当使用 AES(WinZip-AES)加密格式创建 ZIP 压缩包时会在文件头部的额外空间写入错误的数据,这些错误的数据会对压缩包中的文件夹造成影响。
  – 7-Zip 在同时解压缩多个多卷压缩包时可能无法正常工作的错误。
  – 7-Zip 9.24 alpha 至 9.30 alpha 这几个版本无法解压缩用 PKWARE-AES 加密的 ZIP 压缩包。
– 最低系统需求提高至 Windows 2000,7-Zip 将不再支持 Windows 95、98、ME。
– 新增本地化语言:Irish(爱尔兰语)。


9.30 alpha     2012-10-26
————————-
– .7z 格式现在使用 LZMA2 作为默认算法。
– 7-Zip 现在可以更新 WIM 档案。
– 7-Zip 文件管理器现在可以直接移动文件至压缩包。
– TAR 格式的默认编码改为 UTF-8,您可以使用 -mcp=1 选项切换到 OEM 编码。
– 命令行版本:
  – 新增命令「rn」用来重命名档案中的文件。
  – 新增选项 -sdel,当文件添加至压缩包后删除原文件。
  – 新增选项 -sns,可开启储存 NTFS 交换数据流(仅 WIM 格式可用)。
  – 新增选项 -sni 可开启储存 NT 安全信息(仅 WIM 格式可用)。
  – 新增选项 -stl 可用于将压缩包时间戳设置为文件的最近修改时间。
– 打开大压缩包以及大磁盘目录时速度优化。
– 增强对 DMG 格式的支持
– 修复了已知错误。
– 修复 7-Zip 9.26 alpha – 9.29 alpha 中引入的错误:
  – 如果使用那几个版本在创建压非固实 7z 缩包时候遇到某些文件需要跳过(文件正在被其他应用打开、写入等等情况),则那几个版本将无法打开他们创建的压缩包,同样的创建固实压缩包时也类似的问题:如果某一固实区块包含少于等于一个文件,那个压缩包同样无法打开。
– 新增本地化语言:Aragonese(阿拉贡语)。


9.25 alpha     2011-09-16
————————-
– LZMA 解压缩速度提升。
– 「压缩并邮寄」功能增强,支持更多的邮件客户端。
– 新增命令「h」用来计算文件哈希值,支持 CRC-32、CRC-64、SHA-256 和 SHA-1。
– 新增选项 -spf 用来保留完整的路径信息(包括盘符)。在您使用这个选项来提取文件之前,请先检查案中的文件名是否准确无误。
– 修复了已知错误。


9.23 alpha     2011-06-17
————————-
– 更新了语言文件的格式。
– 修复了已知错误。
– 新增本地化语言:Karakalpak(卡拉卡尔帕克语)。


9.22 beta      2011-04-18
————————-
– 7-Zip 现在可以在 Windows 7 的任务栏上显示处理进度。
– 修复了 7-Zip 9.21 beta 中的一处错误:
  – 7-Zip 创建 ZIP 压缩包时忽略部分设置的错误。例如,它会使用 ZipCrypto 算法而忽略 AES-256 的加密选项。


9.21 beta      2011-04-11
————————-
– 7-Zip 现在可以解压缩 UEFI BIOS 文件。
– 64 位版本的 7-Zip 现在包括了 32 位的外壳扩展 DLL。这样 32 位的程序同样可以调用 64 位 7-Zip 的右键菜单。
– 现在 7-Zip 不需要管理员权限就可以关联文件。
– 新增 -mf=FilterID 选项用来指定压缩过滤器,例如:
  – 7z a -mf=bcj2 a.7z a.tar
  – 7z a -mf=delta:4 a.7z a.wav
  – 7z a -mf=bcj a.tar.xz a.tar
– 修复了已知错误。
– 运行在 64 位 Windows 下的 32 位 7-Zip 现在可以使用最多 4 GB 内存。
– 新增本地化语言:Corsican(科西嘉语),Kyrgyz(吉尔吉斯语),Ligurian(利古里亚语)。


9.20           2010-11-18
————————-
– 修复了已知错误。


9.19 beta      2010-11-11
————————-
– 输入的密码在命令行版本中不会显示。
– 修复了已知错误。


9.18 beta      2010-11-02
————————-
– 7-Zip 现在可以解压缩 SquashFS 和 CramFS 文件系统镜像。
– 7-Zip 现在可以解压缩部分文件头有问题的 TAR 和 ISO 文件。
– 新增用于安装包的精简版 SFX 自释放模块(在附加包中)。
– 修复了已知错误。


9.17 beta      2010-10-04
————————-
– 修复 7-Zip 创建 ZIP 压缩包时产生多余磁盘碎片的问题。


9.16 beta      2010-09-08
————————-
– 7-Zip 现在支持大于 8 GB 的 TAR 压缩包。
– 改善对 NSIS 格式的支持。
– 修复了已知错误。
– 新增本地化语言:Hindi(印地语),Gujarati(古吉拉特语),Sanskrit(梵语)。


9.15 beta      2010-06-20
————————-
– 修复了已知错误。
– 新增本地化语言:Tatar(鞑靼语)。


9.14 beta      2010-06-04
————————-
– 完善对 WIM 格式的支持。


9.13 beta      2010-04-15
————————-
– 7-Zip 现在可以在 ZIP 格式中储存 NTFS 时间戳。
– 为一些可以打开的常见格式在右键菜单中增加了「打开压缩包」的选项(例如 .exe)
– 修复了已知错误。
– 新增本地化语言:Uyghur(维吾尔)。


9.12 beta      2010-03-24
————————-
– 最大压缩模式和极限压缩模式下的 ZIP / PPMd 压缩率有所提高。
– 修复 7-Zip 9.* beta 中如果使用超过 10 线程(或在某些模式下超过 20 线程)LZMA2 停止工作的错误。


9.11 beta      2010-03-15
————————-
– 7-Zip 现在支持 .ZIP 压缩包中的 PPMd 格式。
– PPMd 格式速度优化。
– 对压缩包中的安装程序的读取进行了优化。
– 修复了已知错误。
– 新增本地化语言:Kazakh(哈萨克语)。


9.10 beta      2009-12-22
————————-
– 修复 7-Zip 9.09 beta 中的错误:当创建 Zip 格式时使用 ZipCrypto 算法加密时 7-Zip 生成错误的文件。


9.09 beta      2009-12-12
————————-
– 7-Zip 现在可以解压缩 Apple Partition Map (APM) 磁盘镜像。
– 优化 Intel 32nm CPU 下的 AES 代码速度。
– 优化 Intel Atom CPU 下的 CRC 计算速度。
– 修复了已知错误。


9.07 beta      2009-08-27
————————-
– 现在可以在 7-Zip 文件管理器中指定文件比较程序了。
– 修复了已知错误。


9.06 beta      2009-08-17
————————-
– 7-Zip 现在可以解压缩 MSLZ 压缩包。
– 增加部分 EXE 资源解析器,例如 SWF 与 FLV。
– 修复了已知错误。


9.04 beta      2009-05-30
————————-
– 7-Zip 现在可以更新固实的 .7z 压缩包。
– 7-Zip 现在支持 LZMA2 压缩算法。
– 7-Zip 现在支持创建 XZ 压缩包。
– 7-Zip 现在支持解压 NTFS、FAT、VHD 以及 MBR 压缩包。
– 7-Zip 现在支持从 stdin 中解压 GZip、BZip2、LZMA、XZ 以及 TAR 压缩包。
– 7-Zip 现在可以从 \\.\ 文件夹打开、复制、压缩磁盘镜像 (例如 \\.\c:)。
– 7-Zip 文件管理器现在直接打开档案中未压缩的文件而不需要通过临时文件夹。
– 新增命令行选项 -scrc 来切换是否在压缩、测试期间计算 CRC-32 值。
– 新增命令行选项 -scc{WIN|DOS|UTF-8} 切换指定输入、输出字符编码 (默认值 = DOS)。
– 修复了已知错误。


4.65           2009-02-03
————————-
– 7-Zip 文件管理器现在可以计算 SHA-256 检验和。
– 修复了已知错误。


4.64           2009-01-03
————————-
– 修复了 7-Zip 4.63 中的错误:7-Zip 无法解压使用 WinZip-AES 算法加密的 .ZIP 压缩包。


4.63           2008-12-31
————————-
– 7-Zip 现在支持 PKWARE-AES 算法加密的 .ZIP 压缩包。
– 修复了已知错误。


4.62           2008-11-23
————————-
– 修复了已知错误。


4.61 beta      2008-11-23
————————-
– 7-Zip 现在支持 LZMA 算法的 .ZIP 压缩包。
– 修复了已知错误。
– 新增本地化语言:Sinhala(僧伽罗语)。


4.60 beta      2008-08-19
————————-
– 修复了已知错误。


4.59 beta      2008-08-13
————————-
– 7-Zip 现在可以解压缩 UDF、XAR 以及 DMG/HFS 压缩包。
– 当您编辑压缩包中的文件时 7-Zip 文件管理器可以保持该文件的加密状态。
– 7-Zip 文件管理器中地址栏的下拉菜单现在能够正常工作。
– 在使用「list」和「extract」命令时可以使用 -t 选项。
– 修复了已知错误。
– 新增本地化语言:Icelandic(冰岛语),Kurdish Sorani(库尔德语)。


4.58 beta      2008-05-05
————————-
– 速度优化。
– 7-Zip 现在可以解压缩 .lzma 压缩包。
– 现在支持使用 Unicode (UTF-8) 文件名的 .ZIP 压缩包。有以下三种模式:
  – 默认模式:如果本地代码页不包含所需的字符。7-Zip 将使用 UTF-8。
  – -mcu 选项:如果包含非 ASCII 字符,7-Zip 将使用 UTF-8。
  – -mcl 选项:7-Zip 使用本地代码页。
– 现在在 7z and ZIP 压缩格式中可以储存文件的创建时间(-mtc 选项)。
– 7-Zip 现在可以解压缩类似 *.001、*.002、… 格式的 RAR 多卷压缩包。
– 现在可以使用 -mSW- 和 -mSW+ 选项来代替以前的 -mSW=off 和 -mSW=on 选项。
– 修复了已知错误。
– 新增本地化语言:Punjabi(旁遮普语,印度),Pashto(普什图语)。


4.57           2007-12-06
————————-
– 修复 -up3 选项在命令行版本下无法正确工作的 Bug。


4.56 beta      2007-10-24
————————-
– 修复了已知错误。


4.55 beta      2007-09-05
————————-
– 修复了已知错误。


4.54 beta      2007-09-04
————————-
– 解压缩速度提升。


4.53 beta      2007-08-27
————————-
– 在打开的压缩包中可以使用「测试」和「信息」按钮。
– 修复了 7-Zip 4.48 到 4.52 beta 中的错误:
  – 7-Zip 可能创建无法打开的 .ZIP 压缩包。
– 修复了已知错误。


4.52 beta      2007-08-03
————————-
– 7-Zip 现在可以打开部分复合文档 (比如 msi、doc……)。
– 修复了已知错误。


4.51 beta      2007-07-25
————————-
– 修复 4.50 beta 无法打开部分 .7z 文件的错误。


4.50 beta      2007-07-24
————————-
– 命令行版本新增选项:
  -ssc[-] 开启/禁用区分文件名大小写模式。
– AES 加密速度优化。
– 修复了已知错误。


4.49 beta      2007-07-11
————————-
– 7-Zip 现在可以解压缩 WIM 格式。
– 7-Zip 在解释放文件时自动替换文件名中的错误字符。


4.48 beta      2007-06-26
————————-
– 提高 .7z 格式的加密强度。现在可以使用随机初始化向量。
– 修复了已知错误。


4.47 beta      2007-05-27
————————-
– 修复 7-Zip 4.46 beta 中 BZip2 无法正常运行的问题。


4.46 beta      2007-05-25
————————-
– 为 Deflate 算法的 Zip 和 GZip 格式增加「快速压缩」模式。
– 新增「压缩共享文件」选项(-ssw 命令行选项)。
– 修复了已知错误。
– 新增本地化语言:Norwegian Nynorsk(挪威尼诺斯克语)


4.45 beta      2007-04-17
————————-
– 在「添加到压缩包」对话框中可以指定固实数据的大小,以及使用的 CPU 的线程数。
– 默认字典大小增加:正常:16 MB,最大:32 MB。
– 速度优化。
– 命令行版本中增加基准测试命令「b」。
– 减少了 DLL 文件数量。
– 可关联组合式的文件格式,如 .tbz2。
– 命令行选项 -mhcf=off 不再被支持。
– 如果 -t{类型} 命令行选项未被指定,7-Zip 将自动检测当前压缩包格式。
– 修复了已知错误。
– 新增本地化语言:Welsh(威尔士语)


4.44 beta      2007-01-20
————————-
– LZMA、Deflate、BZip2 及 unRAR 速度优化。
– 7-Zip 现在支持大于 260 字符的路径名。
– 修复了已知错误。
– 新增本地化语言:Bangla(Bangla 语), Bashkir(巴什基尔语), Nepali(尼泊尔语)


4.43 beta      2006-09-15
————————-
– 7-Zip 可以使用多线程压缩 .ZIP 压缩包。
– 对 ZIP 格式更好的支持。
– 7-Zip 目前支持兼容 WinZip 的 AES-256 加密 .ZIP 压缩包。
– 新右键菜单项目:创建 .ZIP 压缩包。
– 7-Zip 将对压缩到 .7z 档案中的文件使用顺序列表(扩展名列表)。在某些情况下可以提升压缩比。
– 现在从 .7z 压缩包中释放出来的文件夹将保存修改时间。
– 修复了已知错误。
– 新增本地化语言:Armenian(亚美尼亚语)、Marathi(马拉地语)


4.42           2006-05-14
————————-
– 压缩速度提升并需要更多的内存。
  – 增加默认字典大小:
  – 最快:64 KB
  – 快速:1 MB
  – 正常:4 MB
  – 最大:16 MB
  – 极限:64 MB
– BZip2 格式的压缩、解压缩可以使用多线程模式。
– 多处理器的系统默认开启多线程模式。
– 64 位版本支持 1 GB 字典大小。
– 7z/LZMA 目前只能使用这些匹配查找器:HC4, BT2, BT3, BT4。
– 增大 Zip/GZip/Deflate 在极限压缩模式下的压缩比。
– 7-Zip 现在可以解压缩 ISO 档案部分 NSIS 创建的安装程序。
– 7-Zip 文件管理器中可选「平板模式」。
– 7-Zip 文件管理器现在可以检查文件的 CRC 效验。
– 使用相对路径的 -x 选项现在可以指定文件为绝对路径。
– 7za.exe 增加新选项 (命令行版本):-slt。与「l」(列表) 命令一起使用是显示压缩包的技术信息。
– 新选项:-scs{WIN|DOS|UTF-8} 指定列表文件的字符集。其默认值为 UTF-8。
– 修复了已知错误。
– 新增本地化语言:Albanian(阿尔巴尼亚语)、Kurdish(库尔德语语)


4.41 beta      2006-05-09
————————-
– 修复了已知错误。


4.40 beta      2006-05-01
————————-
– 7-Zip 现在可以解包部分 NSIS 创建的安装程序。
– 新增本地化语言:Kurdish(库尔德语语)
– 修复了已知错误。


4.39 beta      2006-04-13
————————-
– 修复 4.33b 版本中的错误:7-Zip 无法使用快速/最快(HC4 匹配查找器)压缩方法压缩大于 2 GB 的文件到 7z 压缩包中。


4.38 beta      2006-04-13
————————-
– 修复了已知错误。


4.37 beta      2006-03-18
————————-
– 使用相对路径的 -x 选项现在可以指定文件为绝对路径。
– 7-Zip 文件管理器中可选「平板模式」。
– 修复了已知错误。


4.36 beta      2006-03-12
————————-
– 7-Zip 现在可以解压缩 ISO 档案。
– 7-Zip 文件管理器现在可以检查文件的 CRC 效验。


4.35 beta      2006-03-03
————————-
– 7za.exe 增加新选项 (命令行版本):-slt。与「l」(列表) 命令一起使用是显示压缩包的技术信息。
– 修复了已知错误。


4.34 beta      2006-02-27
————————-
– BZip2 格式的压缩、解压缩可以使用多线程模式。
– 多处理器的系统默认开启多线程模式。
– 新选项:-scs{WIN|DOS|UTF-8} 指定列表文件的字符集。其默认值为 UTF-8。
– 新增本地化语言:Albanian(阿尔巴尼亚语)


4.33 beta      2006-02-05
————————-
– 加快压缩速度,同时增加内存需求数。
  – 增加默认字典大小:
  – 最快:64 KB
  – 快速:1 MB
  – 正常:4 MB
  – 最大:16 MB
  – 极限:64 MB
– 64 位版本支持 1 GB 字典大小。
– 7z/LZMA 现在仅使用这些匹配查找器:HC4、BT2、BT3、BT4。
– 增大 Zip/GZip/Deflate 在极限压缩模式下的压缩比。
– 修复了已知错误。


4.32           2005-12-09
————————-
– 修复错误:7-Zip 4.31 在 Windows 95 下无法运行。


4.31           2005-12-04
————————-
– 小修复。
– 新增本地化语言:Basque(巴斯克语)


4.30 beta      2005-11-18
————————-
– 从 7-Zip 中删除 7zFMn.exe、7zGn.exe、7-zipn.exe、7za.exe、7zC.sfx 文件。
– 7-Zip 现在使用未压缩的自释放模块:7z.sfx。
– 自释放模块 7z.sfx 及 7zCon.sfx 现在使用 msvcrt.dll。
– 优化 LZMA 最大、极限模式下的压缩速度。
– LZMA 现在支持单词大小达到 273。
– 如果压缩的文件和指定目录大小相近,7-Zip 将减少 LZMA 算法的目录大小。
– 7-Zip 现在可以使用使用大内存页:
  – GUI:7-Zip 文件管理器 / 选项 / 设置 / 使用大内存页。
  – 命令行版本:-slp 选项。
  – 此功能可以加快压缩速度。但是 7-Zip 在开始压缩的时候要分配大内存页,会出现一些停顿,同样,如果 7-Zip 使用大内存页,任务管理器页不会显示程序占用内存的实际值。此功能仅能运行在 Windows 2003 / XP x64 / Vista。并且您必须拥有系统的管理员权限。
  – 推荐内存大小:1 GB 或更多。正确配置此功能您必须至少运行一次 7-Zip 文件管理器,关闭后重启系统即可。
– 修复了已知错误。


4.29 beta      2005-09-28
————————-
– 修复错误:7-Zip 4.28 beta 在 Windows 95/98/Me 下运行错误。


4.28 beta      2005-09-27
————————-
– 修复错误:7-Zip 4.27 beta 创建多卷压缩包错误。
– 修复在字母和连字符之间使用「复制文件名」冲突的问题。


4.27 beta      2005-09-21
————————-
– 7-Zip 能够解压缩 CHM/HXS(MS HTML HELP)档案文件。
– 7-Zip 能够解压缩多卷 CAB 压缩包。
– 现在 7-Zip 会默认讲删除的文件放入回收站。使用 Shift+Delete 永久删除文件。
– 修复了已知错误。
– 新增本地化语言:Tatarish(鞑靼语)


4.26 beta      2005-08-05
————————-
– 支持 LZH 格式(仅释放)
– 修复了已知错误。
– 新增本地化语言:Ido(伊多语)


4.25 beta      2005-07-31
————————-
– 与 4.24 版本不同,现在当 7-Zip 无法找到指定文件时将不中断压缩,只在警告中显示。
– 在文件列表中,7-Zip 现在支持标准的选择方式。
– 修复了已知错误。


4.24 beta      2005-07-06
————————-
– 7-Zip 在 Windows 管理器中支持右键拖放。
– 命令行版本现在支持短文件名(比如 FILENA~1.TXT)
– 如果在命令行没有通配符名称,并且没有 -r 选项,7-Zip 现在将在压缩之前检查磁盘上的指定文件。
– 修复了已知错误。


4.23           2005-06-29
————————-
– 支持拖放。
– 7-Zip 文件管理器现在能够从一个压缩包中复制文件到另一个。
– 修复了已知错误。
– 新增本地化语言:Extremaduran(埃斯特雷马杜拉语)、Malay(马来语)


4.20           2005-05-30
————————-
– 无更新


4.19 beta      2005-05-21
————————-
– 重写 BZip2 代码。现在支持三种模式:正常、最大和极限。在正常压缩模式下能拥有和原 BZip2 压缩程序几乎一样的压缩效果。在最大压缩模式和极限压缩模式下,对于一些文件能提高 1~3% 的压缩率。但是最大压缩模式所用时间大约是正常模式的三倍;而极限压缩模式所用时间大约是正常模式的八倍。
– 命令行版本现在默认将所有消息打印到标准输出管道输出,并且如果 -so 选项被更改,7-Zip 将把消息打印到错误输出管道。
– 修复了已知错误。
– 新增本地化语言:Azeri(阿塞拜疆)、Georgian(乔治亚州语)


4.18 beta      2005-04-19
————————-
– 修复 v4.17 beta 中的错误:7-Zip 文件管理器中对压缩包进行某些操作时程序崩溃。


4.17 beta      2005-04-18
————————-
– 增强了对文件的保护,达到反病毒的目的,7-Zip 将不打开文件名中多于 4 个空格的文件。并且 7-Zip 将在文件列表这些空格显示为「…」。
– 代码大小优化。
– 从安装程序中删除部分文件:
  – FAR Manager 插件
– 自释放安装模块(7zS.sfx 和 7zSD.sfx)
– 新增本地化语言:Asturian(阿斯图里亚斯语)、Indonesian(印度尼西亚语)


4.16 beta      2005-03-29
————————-
– 7z、LZA 的速度优化。
– 7za.exe 支持 .Z 压缩格式。
– 命令行中的 -r- 选项已默认应用于所有的命令。
– 修复了已知错误。
– 新增本地化语言:Uzbek(乌兹别克语)


4.15 beta      2005-01-25
————————-
– 支持 Z 压缩格式(仅释放文件)
– 7-Zip 现在可以释放「Shrink」压缩算法的 ZIP 压缩包。
– 当有文件无法打开时,7-Zip 将跳过此文件而不中断压缩。
– 修复了已知错误。
– 新增本地化语言:Frisian(弗里西语)


4.14 beta      2005-01-11
————————-
– 7-Zip 安装程序使用 NSIS 创建。这样在 Windows 2000/XP 下,安装将针对于所有用户。
– 现在 7-Zip 能够通过 Windows 或命令行选项 -v 创建多卷压缩包。
– 修复了已知错误。
– 新增本地化语言:Breton(布列塔尼语)、Farsi 波斯语。


4.13 beta      2004-12-14
————————-
– 选项「–」阻止其它选项进行解析。
– 修复了已知错误。


4.12 beta      2004-11-18
————————-
– 修复 4.11 beta 中的错误:7-Zip 在创建 3.75 GB 到 4 GB 总大小的 ZIP 压缩包时出现错误。


4.11 beta      2004-11-16
————————-
– 在压缩及释放时 7-Zip 能够显示文件名。
– 7-Zip 已支持 ZIP 格式的扩展Zip64。所以现在您可以使用 ZIP 格式压缩总大小大于 4 GB 的文件。
– 修复了已知错误。
– 新增本地化语言:Galician(加利西亚语)


4.10 beta      2004-10-21
————————-
– 修复 4.0* 中的错误:
– 一命令行中些在与「-r」选项配合使用的命令无效。以至于 7-Zip 在压缩时跳过一些正常的文件。
– 修复了已知错误。
– 内部稍做改动。


4.09 beta      2004-10-05
————————-
– 修复 4.0* 中的错误:
– 压缩包内部重命名无效或报错。
– 图形用户界面 SFX 不显示「释放」对话框直接解压。
– 更改 7-Zip 图形用户界面(7zG.exe)。


4.08 beta      2004-10-04
————————-
– 修复 4.07 安装程序的一个错误:当系统需要重新启动,安装程序未询问用户即重启的现象。
– 更改 7-Zip 图形用户界面(7zG.exe)。


4.07 beta      2004-10-03
————————-
– 此 beta 测试版中更改了大量的源代码。所以,请不要使用当前的版本来对重要数据进行压缩。请在压缩完后测试压缩包。
– 同一将命令行界面转换到图形用户界面及单独的命令行版本。
– 现在 7-Zip 可以使用一个命令来对多个压缩包进行释放和测试。
– 当被压缩的文件被其它应用程序锁定时,7-Zip 将不会中断压缩进程。7-zip 会跳过此文件并加以提示。注意:7-Zip 以前的版本中存在一个错误,因为他们无法释放正在被其它应用程序锁定的非固实压缩包。
– 更改命令行界面:
  – 现在可以使用绝对路径。
  – 简化语法:
    – 过去:7z a a Folder1\* Folder2\* -r
    – 现在:7z a a Folder1 Folder2
  – 目前可以混用通配符,比如像 *\*111*\*
– 对于未知扩展名的压缩包,目前已经有了更精确的检测方法。
– 支持使用「档案头部加密」的 RAR 压缩包。
– 提高了对 CPIO 格式的支持性。
– 对于 GZip 及 BZip2 格式,您可以:
  – 从输入子目录压缩(-si 选项)。
  – 压缩到输出子目录(-so 选项)。
  – 释放到输出子目录(-so 选项)。
– 7-Zip 文件管理器:
– 分割及合并命令。
– 新增显示选项:整行选择、显示表格线。
– 内部结构重建。
– 修复了已知错误。
– 新增本地化语言:Friulian(弗留利语)、Macedonian(马其顿语)、Mongolian(蒙古语)、Tamil(泰米尔语)、Thai(泰国语)。


3.13           2003-12-11
————————-
– 修复了已知错误。


3.12           2003-12-10
————————-
– 现在您可以在「添加到压缩包」对话框中选择压缩算法、字典大小、单词大小,您同样可以看见内存的使用情况。
– 7-Zip 文件管理器已添加了全新的任务栏。
– 在 7-Zip 文件管理器中新增「基准测试」来测试您的计算机的性能。
– 修复了已知错误。


3.11           2003-10-06
————————-
– 7-Zip 已正式使用限制固实字块大小来加快释放文件的文件随机读取速度:
  – 储存压缩模式:0 B
  – 快速压缩模式:16 MB
  – 正常压缩模式:256 MB
  – 最大压缩模式:1 GB
  – 极限压缩模式:4 GB
– 7z.exe、 7za.exe 和 SFX 模块在 Windows NT/2000/XP/2003 下已支持 Unicode 编码。
– 7-Zip 已不再使用 7zn.exe 和 7zan.exe 文件。
– 修复了已知错误。
– 新增本地化语言:Afrikaans(南非荷兰语)。


3.10           2003-09-27
————————-
– 支持文件的拖放操作。
– GUI (7zG.exe) 能够使用绝对路径压缩文件。
– 当选择了多个文件压缩时,在「压缩格式」选项中将不会显示 bzip2 和 gzip2 格式。
– 当释放的文件已存在时,在命令行版本中可选择「自动重命名」项(-aot 选项)。
– 修复了已知错误。


3.09.02        2003-09-20
————————-
– 可以限制固实字块大小来加快释放文件的文件随机读取速度(-ms 选项)。


3.09.01 beta   2003-09-06
————————-
– 可执行文件自动压缩过滤:dll、exe、ocx、sfx、sys(-mf 选项)。
– 新的 7z 压缩等级:
  – 快速:32 KB 字典大小,BCJ 过滤器。
  – 正常:2 MB 字典大小,BCJ 过滤器。
  – 最大:8 MB 字典大小,BCJ 过滤器,使用最高设置。
  – 极限:32 MB 字典大小,BCJ2 过滤器,使用最高设置。
– 更新了对 7z 固实压缩包的支持。
– 将 -mhcf 选项设为 7z 格式的默认设置。
– 修复了已知错误。


3.08.04 beta   2003-08-24
————————-
– 在 7-Zip 文件管理器中添加了「收藏」菜单。
– 修复了已知错误。


3.08.03 beta   2003-08-21
————————-
– 修复了”添加到压缩包”档案名称不完全的错误。
– 修复了 3.08.* 以前版本的运行错误:
  – 使用「详细资料」查看时能够在文件管理器中保存纵列的显示宽度。
  – 能够打开包含在压缩包中的压缩包。
  – 在命令行版本中可显示文件列表。


3.08.02 beta   2003-08-20
————————-
– 修复了已知错误。


3.08 beta      2003-08-19
————————-
– 压缩对话框:
  – 已支持快速压缩格式 (-mx=1 选项)。
  – 在 Pentium 4 Hyper-Threading(超线程) 或其它多线程处理器的系统下可选择「多线程处理」以减少压缩时间。
  – 能够加密文件名。
– 新增上下文菜单项目:
  – 「当前目录释放」
  – 释放到 <文件夹>。
  – 压缩并发送。
– 内部重建,简化注册步骤。
– 新增本地化语言:Esperanto(世界语)。


2.30 Beta 32   2003-05-15
————————-
– 新的压缩/释放窗口。
– 增加「显示密码」选项。
– 其它的一些小更改。
– 新增本地化语言:Valencian(巴伦西亚语)。


2.30 Beta 31   2003-04-29
————————-
– 修复了已知错误。


2.30 Beta 30   2003-04-19
————————-
– 7-Zip 文件管理器:
  – 显示「..」项(双击即可后退)。
  – 双版面模式选项(F9)。
– 支持 ZIP 档案中的 Bzip2 压缩格式。
– 修复了已知错误。
– 优化了一些代码大小。


2.30 Beta 29   2003-04-07
————————-
– 7-Zip 文件管理器:
  – 在「文件」菜单中添加了「7-Zip」和「系统」子菜单。
  – 在「复制」对话框中添加了「浏览」按钮,且能够记住历史路径。
– 改善了对 RAR 压缩包的支持。
– 修复了已知错误。
– 对 LZMA 编码做了小小的改动。
– 新增本地化语言:Hebrew(希伯来语)、Vietnamese(越南语)。


2.30 Beta 28   2003-02-16
————————-
– 修复了已知错误:
  – 更新了 7z 档案的压缩算法使其能够压缩 4 GB 以上的文件。
  – 在 7z 格式中使用对立项目特性。
  – 压缩 zip 文件时可以设置密码。
– 在 7z 的最大压缩模式下将以前的 4 MB 字典大小更改为 8 MB。
– 7-Zip 文件管理器:
  – 支持文件注释:Ctrl-Z。
  – 新的收藏项目的快捷键:[Shift]+Alt+数字键。


2.30 Beta 27   2003-01-24
————————-
– 修复了上两个 Beta 版本的两个错误(Beta 25 和 Beta 26):
  – 修复了使用 7z 的非固实格式压缩非常的大文件(4 GB、8 GB、12 GB、16 GB……)时发生错误。
  – 修复了使用 7z 格式压缩非常大下的文件时百分比显示不正确的错误。
– 支持多卷 RAR 压缩包和 SPLIT 压缩包。
– 支持 DEB 压缩包。
– 支持旧版本的 CPIO 格式。
– 修复了已知错误。
– 新增本地化语言:Korean(朝鲜语)、Swedish(瑞典语)。


2.30 Beta 26   2003-01-12
————————-
– 支持使用 Zip 格式的 Deflate64 压缩算法的档案。
– 支持 Rar 1.50 压缩包。
– 修复了已知错误。


2.30 Beta 25   2003-01-02
————————-
– 新增了 7z 格式的加密功能(AES-256)。
– 可选择档案文件头压缩模式(-mhcf)。
– 使用 LZMA 压缩算法时,文件头部将被默认压缩。
– 更新非固实的 7z 压缩包(可使用 -ms=off 命令)。
– 支持在压缩包里新建文件和文件夹(非固实压缩包)。
– 支持加密的 Rar3 压缩包。
– 支持使用 Unicode 文件名的 Rar3 压缩包。
– 修复了已知错误。
– 新增本地化语言:Lithuanian(立陶宛语)、Voro(沃鲁语)。


2.30 Beta 24   2002-11-01
————————-
– 内部重建。
– -m 选项 命令略微地改动。
– 修复了已知错误。
– 新增本地化语言:Catalan(西班牙语)、Norwegian(挪威语)、Romanian(罗马尼亚语)。


2.30 Beta 23   2002-09-07
————————-
– 支持 zip 的加密格式。
– 修复了已知错误。


2.30 Beta 22   2002-08-31
————————-
– 新程序: 7-Zip 文件管理器。
– 命令行版本禁止使用绝对路径压缩文件。
– 新增本地化语言:Belarusian、Greek(希腊语)。
– 修复了 FAR 插件的已知错误。
– 修复了已知错误。


2.30 Beta 21   2002-07-08
————————-
– 再次降低 LZMA(7z 算法)压缩时对内存的需求。
– 修复了 FAR 插件的一个小错误。


2.30 Beta 20   2002-07-01
————————-
– 降低了 LZMA(7z 算法)压缩时对内存的需求。
– 新增本地化语言:Turkish(土耳其语)。
– 修复了已知错误。


2.30 Beta 19   2002-04-11
————————-
– 支持 RAR 3.0 压缩包。
– 新增本地化语言:Danish(丹麦语)、Ukrainian(乌克兰语)。


2.30 Beta 18   2002-03-25
————————-
– 略微加快了 7z 格式压缩时的速度。
– 新增本地化语言:Estonian(爱沙尼亚语)、Finnish(芬兰语)。
– 修复了已知错误。


2.30 Beta 17   2002-03-03
————————-
– 支持 ARJ 压缩包。


2.30 Beta 16   2002-02-24
————————-
– 支持 RPM 和 CPIO 压缩包。
– LZMA 算法支持快速压缩模式:-m0a=0。
– 新增的 LZMA 参数:bt4b、hc3、hc4。
– 修复了已知错误。


2.30 Beta 15   2002-02-17
————————-
– 略微提高了 7z 格式的压缩比。
– 新增本地化语言:Dutch(荷兰语)。


2.30 Beta 14   2002-02-10
————————-
– 对多处理器进行了速度优化 (-mmt 选项)。
– 新增本地化语言:Czech(捷克语)、Japanese(日语)、Polish(波兰语)。
– 修复了已知错误。


2.30 Beta 13   2002-01-31
————————-
– 新增安装 SFX(自释放)模块。
– 新增的 LZMA 参数: bt3。
– 新增本地化语言:Portuguese(葡萄牙语)、Portuguese Brazil、Serbo-Croatian(塞尔维亚克罗地亚语)。
– 修复了已知错误。


2.30 Beta 12   2002-01-16
————————-
– 修复了一严重错误:Beta 11 版本的内存溢出。
– 新增本地化语言:Hungarian(匈牙利语)。


2.30 Beta 11   2002-01-15
————————-
– 在 GUI(图形用户界面)版本下增加了测试压缩包功能。
– 7-Zip 可以分配任何 Windows 版本下超过 256 MB 的内存。
– 新增本地化语言:Bulgarian(保加利亚语)、Chinese Traditional(繁体中文)、Latvian(拉脱维亚语)、Slovak(斯洛伐克语)。
– 修复了已知错误。


2.30 Beta 10   2002-01-11
————————-
– 修复了下列错误:
  – 更新的 7z 压缩包在 Beta 8 和 9 版本中不能打开。
  – Unicode 在 Windows NT4 下使用 Beta 9 版本不能工作。
  – 修复了其它的小错误。
– 新增本地化语言:Arabic(阿拉伯语)、French(法语)、Italian(意大利语)、Slovenian(斯洛文尼亚语)、Spanish(西班牙语)。


2.30 Beta 9    2002-01-08
————————-
– 支持三种本地化语言:English(英语)、German(德语)、Russian(俄语)。
– 优化了在 Windows NT4/2000/XP 下运行的 7-Zip 主程序。
– 新增两个 LZMA 参数:pat3h 及 pat4h。
– 修复了已知错误。


2.30 Beta 8    2001-12-21
————————-
– 支持了上几个版本不支持的 zip 压缩包。
– 7-Zip 现在支持新状态(-uw 选项)可用于在 7-Zip 无法判断文件是否是较新的或文件是否相同时使用。
– 为 7z 格式的增量更新(-u 使用命令 #3)支持对立项目的特性。
– 修复了已知错误。


2.30 Beta 7    2001-11-04
————————-
– BCJ2:新的 x86 编码转换器。
– 支持长文件名的 tar 压缩包(GNU 将扩展到「tar」格式)。
– 7z 格式支持 Multi-stream 编码(-mb 选项)。
– 对 zip 和 gzip 的命令行版本增加了更多的压缩设置(-m 选项)。
– Windows 版本支持「固实」压缩选项。
– Windows 版本支持命令行的压缩参数。
– 增加文件已存在时自动重命名文件的功能。
– 新增覆盖模式选项(-ao)。
– 修复了已知错误。


2.30 Beta 6    2001-10-13
————————-
– MultiArc FAR 管理器插件支持 7z 格式。
– 修复了已知错误。


2.30 Beta 5    2001-10-02
————————-
– 可以从 Windows 资源管理器创建 SFX(自释放)压缩包。
– 7zWin.sfx:Windows SFX(自释放)模块。
– 当您创建 SFX(自释放)压缩包时自动将扩展名改为 .exe。
– 7za.exe 可以支持 7z、bzip2、gzip、tar、zip 格式。
– 修复了已知错误。


2.30 Beta 4    2001-09-15
————————-
– 增强了 7z 格式的压缩算法。
– 7z 压缩包格式使用默认的 7z.exe 和 7za.exe 压缩。
– 更改 7z 默认压缩选项为 bt234 压缩和固实压缩包。
– 将 7z 最大压缩模式(-mx)的字典大小更改为 4MB。


2.30 Beta 3    2001-09-10
————————-
– 修复了一严重错误:解压缩时 7z 固实压缩包不释放零字节文件。
– 新文件 7za.exe:7-Zip 命令行版本(单独)。
– 加快了 Deflate 算法的压缩速度(zip 和 gzip 格式)。


2.30 Beta 2    2001-08-30
————————-
– 新的 7z 支持更高的压缩比。
– 命令行版本增加了不显示百分比命令(-bd 选项)。
– 修复了下列命令行版本的错误。
– 修复了已知错误。


2.30 Beta 1    2001-05-07
————————-
– 加快了档案内容的读取速度。
– 修复了某些 zip 压缩包文件名显示错的漏洞。
– 可以添加大于 4GB 的文件到 GZip 压缩包。


2.24           2001-03-21
————————-
– 修复了 GZip 和 Cab 编码器的错误。


2.23           2001-03-04
————————-
– 可以在 Windows 资源管理器使用右键打开压缩包。
– 在 Windows 资源管理器中增加了上下文菜单。
– 命令行版本自动添加文件扩展名。
– 修复了已知错误。


2.22           2001-01-21
————————-
– 支持包含多于65535各文件的 Zip 压缩包。
– 搜索压缩包的开始位置现在可以缩小到1 MB 每个部分。
– 修复了已知错误。
– 7-Zip 将不再使用 7zip.exe、far7zip.reg 和 far7zip2.reg 文件。取而代之的是新的 far7z.reg 文件。


2.21           2000-12-21
————————-
– 改善了 FAR 插件:
  – 当打开压缩文件时显示进程对话框。
  – 可以使用快捷键 Ctrl+A 全选文件。
  – 在压缩包里使用快捷键 Alt+F6 可以将已选文件快速地释放到当前目录。
– 修复了已知错误:
  – 解压某些缩固实 Rar 压缩包时出现错误。
  – 命令行7z.exe 中不能显示非英文字符。
  – FAR 不能执行某些操作。
  – 释放某些 ZIP 压缩包时百分比显示错误。


2.20           2000-11-20
————————-
– 支持 BZip2 和 Cab 格式。
– 更新的外部压缩加密模块。
– 加密文件支持(Rar 和 Zip)。
– 新的控制台客户端。
– 修复了已知错误。


2.11           2000-06-15
————————-
– 修复了下列错误:
  – FAR 插件不能正确地显示子目录中非英文字符文件名的文件。
  – gzip 不能压缩零字节文件。


2.10           2000-05-16
————————-
– 发布 7-Zip 的 FAR 管理器插件。
– 将 GUI(图形用户界面)版本整合到 Windows 资源管理器。
– 支持压缩及解压缩 GZip 和 TAR 格式的压缩包。
– 支持解压缩 RAR 格式的压缩包。
– 支持软件的安装和删除。
– 修复了已知错误。


2.01           1999-09-19
————————-
– 修复了一些小错误。
– 提升了某些文件的压缩比。


2.00           1999-07-18
————————-
– 正式发布。
– 加快了压缩和释放的速度。
– 增加了最大压缩选项(-mx 选项)。
– 修复了一些小错误。


2.00 Beta 1    1999-01-02
————————-
– 最初的 beta 版本。


档案末端


英文版原版>>>


HISTORY of the 7-Zip
--------------------

23.01          2023-06-20
-------------------------
- The page "Language" in 7-Zip's menu Tools/Options now shows information
  about selected translation, including the number of translated lines.
- Some bugs were fixed.


23.00          2023-05-07
-------------------------
- 7-Zip now can use new ARM64 filter for compression to 7z and xz archives.
  ARM64 filter can increase compression ratio for data containing executable
  files compiled for ARM64 (AArch64) architecture.
  Also 7-Zip now parses executable files (that have exe and dll filename extensions)
  before compressing, and it selects appropriate filter for each parsed file:
    - BCJ or BCJ2 filter for x86 executable files,
    - ARM64 filter for ARM64 executable files.
  Previous versions by default used x86 filter BCJ or BCJ2 for all exe/dll files.
- Default section size for BCJ2 filter was changed from 64 MiB to 240 MiB.
  It can increase compression ratio for executable files larger than 64 MiB.
- UDF: support was improved.
- cpio: support for hard links.
- Some changes and optimizations in WIM creation code.
- When new 7-Zip creates multivolume archive, 7-Zip keeps in open state
  only volumes that still can be changed. Previous versions kept all volumes
  in open state until the end of the archive creation.
- 7-Zip for Linux and macOS now can reduce the number of simultaneously open files,
  when 7-Zip opens, extracts or creates multivolume archive. It allows to avoid
  the failures for cases with big number of volumes, bacause there is a limitation
  for number of open files allowed for a single program in Linux and macOS.
- There are optimizations in code for 7-Zip's context menu in Explorer:
  the speed of preparing of the menu showing was improved for cases when big number of
  files were selected by external program for context menu that contains 7-Zip menu commands.
- There are changes in code for the drag-and-drop operations to and from 7-Zip File Manager.
  And the drag-and-drop operation with right button of mouse now is supported for some cases.
- The bugs were fixed:
  - ZIP archives: if multithreaded zip compression was performed with more than one
      file to stdout stream (-so switch), 7-zip didn't write "data descriptor" for some files.
  - ext4 archives: 7-Zip couldn't correctly extract symbolic link to directory from ext4 archives.
  - HFS and APFS archives: 7-Zip incorrectly decoded uncompressed blocks (64 KiB) in compressed forks.
  - Some another bugs were fixed.


22.01          2022-07-15
-------------------------
- UDF support was improved to UDF version 2.60.
- HFS and APFS support was improved.


22.00          2022-06-15
-------------------------
- 7-Zip now can extract APFS (Apple File System) images that can be used in DMG files.
- 7-Zip now can create TAR archives in POSIX (pax) tar format with the switches
    -ttar -mm=pax or -ttar -mm=posix
- 7-Zip now can store additional file timestamps with high precision (1 ns in Linux) 
  in tar/pax archives with the following switches:
    -ttar -mm=pax -mtp=3 -mtc -mta
- New switches for Linux version for TAR archives:
  -snoi : store owner/group ids in archive or set owner/group ids from archive to extracted files. 
  -snon : store owner/group names in archive
- New -snz switch to propagate Zone.Identifier stream to extracted files (Windows).
- New option "Propagate Zone.Id stream" in Tools/Options/7-Zip menu.
- New "Options" window in "Add to archive" allows to select what metadata must be 
  included to archive. Also it allows to select new option 
  "Do not change source files last access time".
- Some bugs were fixed.


21.07          2021-12-26
-------------------------
- 7-Zip now can extract VHDX disk images (Microsoft Hyper-V Virtual Hard Disk v2 format).
- New switches: -spm and -im!{file_path} to exclude directories from processing 
    for specified paths that don't contain path separator character at the end of path.
- In the "Add to Archive" window, now it is allowed to use -m prefix for "Parameters" 
  field as in command line: -mparam.
- The sorting order of files in archives was slightly changed to be more consistent
  for cases where the name of some directory is the same as the prefix part of the name
  of another directory or file.
- TAR archives created by 7-Zip now are more consistent with archives created by GNU TAR program.


21.06          2021-11-24
-------------------------
- The window "Add to Archive" now allows to set a limit on memory usage (RAM) 
  that will be used for compressing.
- New switch -mmemuse={N}g / -mmemuse=p{N} to set a limit on memory usage (RAM) 
  for compressing and decompressing.
- Bug in versions 21.00-21.05 was fixed:
  7-Zip didn't set attributes of directories during archive extracting.
- Some bugs were fixed.


21.04 beta     2021-11-02
-------------------------
- 7-Zip now reduces the number of working CPU threads for compression,
  if RAM size is not enough for compression with big LZMA2 dictionary.
- 7-Zip now can create and check "file.sha256" text files that contain the list 
  of file names and SHA-256 checksums in format compatible with sha256sum program.
  7-Zip can work with such checksum files as with archives,
  but these files don't contain	real file data.
  The context menu commands to create and test "sha256" files:
    7-Zip  /  CRC SHA  /  SHA-256 -> file.sha256
    7-Zip  /  CRC SHA  /  Test Archive : Checksum
  The commands for command line version:
    7z a -thash file.sha256 *.txt
    7z t -thash file.sha256
    7z t -thash -shd. file.sha256 
  New -shd{dir_path} switch to set the directory that is used to check files 
  referenced by "file.sha256" file for "Test" operation. 
  If -shd{dir_path} is not specified, 7-Zip uses the directory where "file.sha256" is stored.  
- New -xtd switch to exclude directory metadata records from processing.


21.03 beta     2021-07-20
-------------------------
- The maximum dictionary size for LZMA/LZMA2 compressing was increased to 4 GB (3840 MiB).
- Minor speed optimizations in LZMA/LZMA2 compressing.


21.02 alpha    2021-05-06
-------------------------
- 7-Zip now writes additional field for filename in UTF-8 encoding to zip archives.
  It allows to extract correct file name from zip archives on different systems.
- The command line version of 7-Zip for macOS was released.
- The speed for LZMA and LZMA2 decompression in arm64 versions for macOS and Linux 
  was increased by 20%-60%.
- Some changes and improvements in ZIP, TAR and NSIS code.


21.01 alpha    2021-03-09
-------------------------
- The command line version of 7-Zip for Linux was released.
- The improvements for speed of ARM64 version using hardware CPU instructions 
  for AES, CRC-32, SHA-1 and SHA-256.
- The bug in versions 18.02 - 21.00 was fixed:
  7-Zip could not correctly extract some ZIP archives created with xz compression method.
- Some bugs were fixed.


21.00 alpha    2021-01-19
-------------------------
- Some internal changes in code.
- Some bugs were fixed.
- New localizations: Tajik, Uzbek (Cyrillic)


20.02 alpha    2020-08-08
-------------------------
- The default number of LZMA2 chunks per solid block in 7z archive was increased to 64.
  It allows to increase the compression speed for big 7z archives, if there is a big number 
  of CPU cores and threads.
- The speed of PPMd compressing/decompressing was increased for 7z/ZIP/RAR archives.
- The new -ssp switch. If the switch -ssp is specified, 7-Zip doesn't allow the system 
  to modify "Last Access Time" property of source files for archiving and hashing operations. 
- Some bugs were fixed.
- New localization: Swahili.


20.00 alpha    2020-02-06
-------------------------
- 7-Zip now supports new optional match finders for LZMA/LZMA2 compression: bt5 and hc5, 
  that can work faster than bt4 and hc4 match finders for the data with big redundancy.
- The compression ratio was improved for Fast and Fastest compression levels with the 
  following default settings:
   - Fastest level (-mx1) : hc5 match finder with 256 KB dictionary.
   - Fast    level (-mx3) : hc5 match finder with 4 MB dictionary.
- Minor speed optimizations in multithreaded LZMA/LZMA2 compression for Normal/Maximum/Ultra 
  compression levels.
- bzip2 decoding code was updated to support bzip2 archives, created by lbzip2 program.
- Some bugs were fixed.
- New localization: Turkmen.


19.02 alpha    2019-09-05
-------------------------
- 7-Zip now can unpack files encoded with Base64 encoding (b64 filename extension).
- 7-Zip now can use new x86/x64 hardware instructions for SHA-1 and SHA-256, supported
  by AMD Ryzen and latest Intel CPUs: Ice Lake and Goldmont.
  It increases
    - the speed of SHA-1/SHA-256 hash value calculation, 
    - the speed of encryption/decryption in zip AES, 
    - the speed of key derivation for encryption/decryption in 7z/zip/rar archives.
- The speed of zip AES encryption and 7z/zip/rar AES decryption was increased with 
  the following improvements:
   - 7-Zip now can use new x86/x64 VAES (AVX Vector AES) instructions, supported by 
     Intel Ice Lake CPU. 
   - The existing code of x86/x64 AES-NI was improved also.
- There is 2% speed optimization in 7-Zip benchmark's decompression.
- Some bugs were fixed.

 
19.00          2019-02-21
-------------------------
- Encryption strength for 7z archives was increased:
  the size of random initialization vector was increased from 64-bit to 128-bit,
  and the pseudo-random number generator was improved.
- Some bugs were fixed.


18.06          2018-12-30
-------------------------
- The speed for LZMA/LZMA2 compressing was increased by 3-10%,
  and there are minor changes in compression ratio.
- Some bugs were fixed.
- The bug in 7-Zip 18.02-18.05 was fixed: there was memory leak in xz decoder.
- 7-Zip 18.02-18.05 used only one CPU thread for bz2 archive creation.
  

18.05          2018-04-30
-------------------------
- The speed for LZMA/LZMA2 compressing was increased 
    by 8% for fastest/fast compression levels and 
    by 3% for normal/maximum compression levels.
- 7-Zip now shows Properties (Info) window and CRC/SHA results window
  as "list view" window instead of "message box" window.
- Some improvements in zip, hfs and dmg code.
- Previous versions of 7-Zip could work incorrectly in "Large memory pages" mode in
  Windows 10 because of some BUG with "Large Pages" in Windows 10. 
  Now 7-Zip doesn't use "Large Pages" on Windows 10 up to revision 1709 (16299).
- The vulnerability in RAR unpacking code was fixed (CVE-2018-10115).
- Some bugs were fixed.
 

18.03 beta     2018-03-04
-------------------------
- The speed for single-thread LZMA/LZMA2 decoding
  was increased by 30% in x64 version and by 3% in x86 version.
- 7-Zip now can use multi-threading for 7z/LZMA2 decoding,
  if there are multiple independent data chunks in LZMA2 stream.
- 7-Zip now can use multi-threading for xz decoding,
  if there are multiple blocks in xz stream.
- New localization: Kabyle.
- Some bugs were fixed.


18.01          2018-01-28
-------------------------
- 7-Zip now can unpack DMG archives that use LZFSE compression method.
- 7-Zip now doesn't allow update operation for archives that have read-only attribute.
- The BUG was fixed:
  extracting from tar with -si switch didn't set timestamps for directories.
- Some bugs were fixed.


18.00 beta     2018-01-10
-------------------------
- 7-Zip now can unpack OBJ/COFF files.
- new -sse switch to stop archive creating, if 7-Zip can't open some input file. 
- Some bugs were fixed.


17.01 beta     2017-08-28
-------------------------
- Minor speed optimization for LZMA2 (xz and 7z) multi-threading compression.
  7-Zip now uses additional memory buffers for multi-block LZMA2 compression.
  CPU utilization was slightly improved.
- 7-zip now creates multi-block xz archives by default. Block size can be 
  specified with -ms[Size]{m|g} switch.
- xz decoder now can unpack random block from multi-block xz archives.
  7-Zip File Manager now can open nested multi-block xz archives 
  (for example, image.iso.xz) without full unpacking of xz archive.
- 7-Zip now can create zip archives from stdin to stdout.
- 7-Zip command line: @listfile now doesn't work after -- switch.
  Use -i@listfile before -- switch instead.
- The BUGs were fixed:
  7-Zip could add unrequired alternate file streams to WIM archives, 
  for commands that contain filename wildcards and -sns switch.
  7-Zip 17.00 beta crashed for commands that write anti-item to 7z archive.
  7-Zip 17.00 beta ignored "Use large memory pages" option.


17.00 beta     2017-04-29
-------------------------
- ZIP unpacking code was improved.
- 7-Zip now reserves file space before writing to file (for extraction from archive).
  It can reduce file fragmentation.
- Some bugs were fixed. 7-Zip could crash in some cases.
- Internal changes in code.


16.04          2016-10-04
-------------------------
- The bug was fixed: 7-Zip 16.03 exe installer under Vista didn't create 
  links in Start / Programs menu.
- Some bugs were fixed in RAR code.


16.03          2016-09-28
-------------------------
- Installer and SFX modules now use some protection against DLL preloading attack.
- Some bugs were fixed in 7z, NSIS, SquashFS, RAR5 and another code.


16.02          2016-05-21
-------------------------
- 7-Zip now can extract multivolume ZIP archives (z01, z02, ... , zip).
- Some bugs were fixed.


15.14          2015-12-31
-------------------------
- 7-Zip File Manager:
  - The code for "Open file from archive" operation was improved.
  - The code for "Tools/Options" window was improved.
  - The BUG was fixed: there was incorrect mouse cursor capture for 
    drag-and-drop operations from open archive to Explorer window.
- Some bugs were fixed.
- New localization: Yoruba.


15.12          2015-11-19
-------------------------
- The release version.


15.11 beta     2015-11-14
-------------------------
- Some bugs were fixed.


15.10 beta     2015-11-01
-------------------------
- The BUG in 9.21 - 15.09 was fixed:
  7-Zip could ignore some parameters, specified for archive creation operation
  for gzip and bzip2 formats in "Add to Archive" window and in command line 
  version (-m switch).
- Some bugs were fixed.


15.09 beta     2015-10-16
-------------------------
- 7-Zip now can extract ext2 and multivolume VMDK images.
- Some bugs were fixed.


15.08 beta     2015-10-01
-------------------------
- 7-Zip now can extract ext3 and ext4 (Linux file system) images.
- Some bugs were fixed.


15.07 beta     2015-09-17
-------------------------
- 7-Zip now can extract GPT images and single file QCOW2, VMDK, VDI images.
- 7-Zip now can extract solid WIM archives with LZMS compression.
- Some bugs were fixed.


15.06 beta     2015-08-09
-------------------------
- 7-Zip now can extract RAR5 archives.
- 7-Zip now doesn't sort files by type while adding to solid 7z archive.
- new -mqs switch to sort files by type while adding to solid 7z archive.
- The BUG in 7-Zip File Manager was fixed:
  The "Move" operation to open 7z archive didn't delete empty files.
- The BUG in 15.05 was fixed:
  console version added some text to the end of stdout stream, is -so switch was used. 
- The BUG in 9.30 - 15.05 was fixed:
  7-Zip could not open multivolume sfx RAR archive.
- Some bugs were fixed.


15.05 beta     2015-06-14
-------------------------
- 7-Zip now uses new installer.
- 7-Zip now can create 7z, xz and zip archives with 1536 MB dictionary for LZMA/LZMA2.
- 7-Zip File Manager now can operate with alternate file streams at NTFS
  volumes via "File / Alternate Streams" menu command.
- 7-Zip now can extract .zipx (WinZip) archives that use xz compression.
- new optional "section size" parameter for BCJ2 filter for compression ratio improving.
  Example: -mf=BCJ2:d9M, if largest executable section in files is smaller than 9 MB. 
- Speed optimizations for BCJ2 filter and SHA-1 and SHA-256 calculation.
- Console version now uses stderr stream for error messages.
- Console version now shows names of processed files only in progress line by default.
- new -bb[0-3] switch to set output log level. -bb1 shows names of processed files in log. 
- new -bs[o|e|p][0|1|2] switch to set stream for output messages;
      o: output, e: error, p: progress line; 0: disable, 1: stdout, 2: stderr.
- new -bt switch to show execution time statistics.
- new -myx[0-9] switch to set level of file analysis.
- new -mmtf- switch to set single thread mode for filters.
- The BUG was fixed:
  7-Zip didn't restore NTFS permissions for folders during extracting from WIM archives.
- The BUG was fixed:
  The command line version: if the command "rn" (Rename) was called with more 
  than one pair of paths, 7-Zip used only first rename pair.
- The BUG was fixed:
  7-Zip crashed for ZIP/LZMA/AES/AES-NI.
- The BUG in 15.01-15.02 was fixed:
  7-Zip created incorrect ZIP archives, if ZipCrypto encryption was used.
  7-Zip 9.20 can extract such incorrect ZIP archives.
- Some bugs were fixed.
  

9.38 beta      2015-01-03
-------------------------
- Some bugs were fixed.


9.36 beta      2014-12-26
-------------------------
- The BUG in command line version was fixed:
  7-Zip created temporary archive in current folder during update archive
  operation, if -w{Path} switch was not specified. 
  The fixed 7-Zip creates temporary archive in folder that contains updated archive.
- The BUG in 9.33-9.35 was fixed:
  7-Zip silently ignored file reading errors during 7z or gz archive creation,
  and the created archive contained only part of file that was read before error.
  The fixed 7-Zip stops archive creation and it reports about error.
- Some bugs were fixed.


9.35 beta      2014-12-07
-------------------------
- The BUG was fixed:
  7-Zip crashed during ZIP archive creation, if the number of CPU threads was more than 64.
- The BUG in 9.31-9.34 was fixed:
  7-Zip could not correctly extract ISO archives that are larger than 4 GiB.
- The BUG in 9.33-9.34 was fixed:
  The option "Compress shared files" and -ssw switch didn't work.
- The BUG in 9.26-9.34 was fixed:
  7-Zip File Manager could crash for some archives open in "Flat View" mode.
- Some bugs were fixed.


9.34 alpha     2014-06-22
-------------------------
- The BUG in 9.33 was fixed:
  Command line version of 7-Zip could work incorrectly, if there is relative 
  path in exclude filename optiton (-x) and absolute path as include filename.
- The BUG in 9.26-9.33 was fixed:
  7-Zip could not open some unusual 7z archives that were created by another 
  software (not by 7-Zip).
- The BUG in 9.31-9.33 was fixed:
  7-Zip could crash with switch -tcab.


9.33 alpha     2014-06-15
-------------------------
- 7-Zip now can show icons for 7-Zip items in Explorer's context menu. 
- "Add to archive" dialog box: 
    - new options in "Path Mode"
    - new option "Delete files after compression"
    - new "NTFS" options for WIM and TAR formats:
	- Store symbolic links
	- Store hard links
	- Store alternate data streams
	- Store file security
- "Extract" dialog box:
    - new optional field to set output folder name
    - new option "Eliminate duplication of root folder"
    - new option "Absolute pathnames" in "Path Mode".
    - new option "Restore file security" (that works for WIM archives only)
- 7-Zip File Manager:
    - new "File / Link" dialog box in to create  symbolic links and hard links.
- Command line version:
    - new -spd switch to Disable wildcard matching for file names
    - new -spe switch to Eliminate duplication of root folder for extract archive command
    - new -snh switch to store hard links as links (WIM and TAR formats only)
    - new -snl switch to store symbolic links as links (WIM and TAR formats only)
- NSIS support was improved. 
- The problem was fixed: 
    The command "extract to \*" with multiple archives could use same 
    output folder, if archives are placed inside PE (EXE) file.
- The BUG of 9.31-9.32 was fixed:
    Command line version for test and extract commands returned the 
    value 0 as exit code, if it couldn't open archive.
- The BUG was fixed:
    7-Zip could not create archives with anti-items for any archive type,
    except of 7z type
- Some bugs were fixed.
- New localization: Mongolian (script).


9.32 alpha     2013-12-01
-------------------------
- 7-Zip now can create multivolume SFX archives in 7z format.
  Standalone sfx module now can unpack external 7z archive with name that is
  matched to name of sfx module. For example, sfx module renamed to archive.exe 
  can unpack archive.7z or archive.7z.001 .
- ZIP, NSIS, HFS, AR support was improved.
- 7-Zip now supports files larger than 4 GiB in ISO archives.
- Improved compression ratio in 7z format with maximum or ultra level for
  executable files (EXE and DLL) that are larger than 16 MB (improved BCJ2 filter).
- Improved support for file pathnames longer than 260 characters.
- CRC and SHA checksum calculation for files can be called via Explorer's context menu.
- 7-Zip File Manager now also takes into account the numbers in filenames for sorting order.
- 7-Zip File Manager now can use RAM buffers instead of temp files to open 
  nested archives, if temp file is smaller than 1/4 of RAM size.
- 7-Zip File Manager can open files in "Parser" mode via "Open Archive > #" context 
  menu command. It shows the list of archives inside file.
- Command line version:
    - new -t# switch to open file in "Parser" mode and show the list of archives inside file.
    - new -stx{Type} switch to exclude archive type from using.
    - -scs switch now supports UTF-16 encoding.
    - now it shows time and memory usage statistics at the end of execution.
- The BUGs were fixed:
    - 7-Zip 9.30 and early versions created ZIP archives with minor errors
      in extra field of headers for directory items, if AES (WinZip-AES) encryption was used.
    - 7-Zip could work incorrectly in decompression of more than one 
      multi-volume archive in one command.
    - 7-Zip 9.24 alpha - 9.30 alpha versions could not extract ZIP archives 
      encrypted with PKWARE-AES method.
- Minimum supported system now is Windows 2000. 7-Zip doesn't work on Windows 95/98/ME.
- New localization: Irish.


9.30 alpha     2012-10-26
-------------------------
- LZMA2 now is default compression method for .7z format.
- 7-Zip now can update WIM archives.
- 7-Zip File Manager now can move files to archives.
- The default encoding for TAR format now is UTF-8. You can use -mcp=1 switch for OEM encoding.
- Command line version:
    - new "rn" command to rename files in archive.
    - new -sdel switch to delete files after including to archive.
    - new -sns switch to store NTFS alternate streams (for WIM format only). 
    - new -sni switch to store NT security information for files (for WIM format only).
    - new -stl switch to set archive timestamp from the most recently modified file.
- Speed optimizations for opening big archives and big disk folders.
- 7-Zip now writes special padding blocks to headers of 7z archives for 
  faster archive opening. Note that 7-Zip 4.50 - 4.58 contain BUG, 
  so these old versions can't correctly work with such new 7z archives.
- DMG support was improved
- Some bugs were fixed.
- The BUG in 7-Zip 9.26 alpha - 9.29 alpha versions was fixed.
  These alpha versions could not open non-solid 7z archive, if 
  some files were skipped during creation of that archive.
  That problem is also related to 7z archives created in solid mode,
  if each solid block contains no more than one file.
  Note: 7-Zip skips files that were open for writing by another 
  application and shows warning in that case.
- New localization: Aragonese.


9.25 alpha     2011-09-16
-------------------------
- LZMA decompression speed was improved.
- "compress and send to email" code was improved to support more email clients.
- New command "h" to calculate hash values CRC-32, CRC-64, SHA-256 or SHA-1 for files on disk.
- New -spf switch to store full file paths including drive letter to archive.
  If you use that switch with extract command, please check that file names in archive are correct.
- Some bugs were fixed.


9.23 alpha     2011-06-07
-------------------------
- The format of language files was changed.
- Some bugs were fixed.
- New localization: Karakalpak.


9.22 beta      2011-04-18
-------------------------

- 7-Zip now uses progress indicator displayed on a taskbar button under Windows 7.
- The BUG in 7-Zip 9.21 beta was fixed: 
    7-Zip could ignore some options when you created ZIP archives.
    For example, it could use ZipCrypto cipher instead of AES-256.


9.21 beta      2011-04-11
-------------------------
- 7-Zip now can unpack UEFI BIOS files.
- 64-bit version of 7-Zip now includes additional 32-bit shell extension DLL.
  So other 32-bit programs can call 64-bit 7-Zip via context menu.
- Now it's possible to associate 7-Zip with file types without Administrator rights.
- New -mf=FilterID switch to specify compression filter. Examples:
    7z a -mf=bcj2 a.7z a.tar 
    7z a -mf=delta:4 a.7z a.wav 
    7z a -mf=bcj a.tar.xz a.tar 
- 32-bit 7-Zip running under 64-bit Windows now can use up to 4 GB of RAM.
- Some bugs were fixed.
- New localizations: Corsican, Kyrgyz, Ligurian.


9.20           2010-11-18
-------------------------
- Some bugs were fixed.


9.19 beta      2010-11-11
-------------------------
- The console version now doesn't show entered password.
- Some bugs were fixed.


9.18 beta      2010-11-02
-------------------------
- 7-Zip now can unpack SquashFS and CramFS filesystem images.
- 7-Zip now can unpack some TAR and ISO archives with incorrect headers.
- New small SFX module for installers (in Extra package).
- Some bugs were fixed.


9.17 beta      2010-10-04
-------------------------
- Disk fragmentation problem for ZIP archives created by 7-Zip was fixed.


9.16 beta      2010-09-08
-------------------------
- 7-Zip now supports files that are larger than 8 GB in TAR archives.
- NSIS support was improved.
- Some bugs were fixed.
- New localizations: Hindi, Gujarati, Sanskrit.


9.15 beta      2010-06-20
-------------------------
- Some bugs were fixed.
- New localization: Tatar.


9.14 beta      2010-06-04
-------------------------
- WIM support was improved.


9.13 beta      2010-04-15
-------------------------
- 7-Zip now stores NTFS file timestamps to ZIP archives.
- New additional "Open archive >" item in context menu allows to select 
  archive type for some files.
- Some bugs were fixed.
- New localization: Uyghur.


9.12 beta      2010-03-24
-------------------------
- ZIP / PPMd compression ratio was improved in Maximum and Ultra modes.
- The BUG in 7-Zip 9.* beta was fixed: LZMA2 codec didn't work,
  if more than 10 threads were used (or more than 20 threads in some modes).


9.11 beta      2010-03-15
-------------------------
- 7-Zip now supports PPMd compression in ZIP archives.
- Speed optimizations in PPMd codec.
- The support for archives in installers was improved.
- Some bugs were fixed.
- New localization: Kazakh.
   

9.10 beta      2009-12-22
-------------------------
- The BUG in 7-Zip 9.09 beta was fixed:
    7-Zip created incorrect ZIP archives, if ZipCrypto encryption was used.
    

9.09 beta      2009-12-12
-------------------------
- 7-Zip now can unpack Apple Partition Map (APM) disk images.
- Speed optimizations in AES code for Intel's 32nm CPUs.
- Speed optimizations in CRC calculation code for Intel's Atom CPUs.
- Some bugs were fixed.


9.07 beta      2009-08-27
-------------------------
- It's possible to specify Diff program in options (7-Zip File Manager).
- Some bugs were fixed.


9.06 beta      2009-08-17
-------------------------
- 7-Zip now can unpack MSLZ archives.
- Partial parsing for EXE resources, SWF and FLV.
- Some bugs were fixed.


9.04 beta      2009-05-30
-------------------------
- 7-Zip now can update solid .7z archives.
- 7-Zip now supports LZMA2 compression method.
- 7-Zip now supports XZ archives.
- 7-Zip now can unpack NTFS, FAT, VHD and MBR archives.
- 7-Zip now can unpack GZip, BZip2, LZMA, XZ and TAR archives from stdin.
- 7-Zip now can open/copy/compress disk images (like \\.\c:) from \\.\ folder.
- 7-Zip File Manager now doesn't use temp files to open nested archives 
  stored without compression.
- New -scrc switch to calculate total CRC-32 during extracting / testing.
- New -scc{WIN|DOS|UTF-8} switch to specify charset for console input/output (default = DOS).
- Some bugs were fixed.


4.65           2009-02-03
-------------------------
- 7-Zip File Manager now can calculate SHA-256 checksum.
- Some bugs were fixed.


4.64           2009-01-03
-------------------------
- The bug in 7-Zip 4.63 was fixed: 7-Zip could not decrypt .ZIP archives 
  encrypted with WinZip-AES method.


4.63           2008-12-31
-------------------------
- 7-Zip now can unpack ZIP archives encrypted with PKWARE-AES.
- Some bugs were fixed.


4.62           2008-12-02
-------------------------
- Some bugs were fixed.


4.61 beta      2008-11-23
-------------------------
- 7-Zip now supports LZMA compression for .ZIP archives.
- Some bugs were fixed.
- New localization: Sinhala.


4.60 beta      2008-08-19
-------------------------
- Some bugs were fixed.


4.59 beta      2008-08-13
-------------------------
- 7-Zip now can unpack UDF, XAR and DMG/HFS archives.
- 7-Zip File Manager now keeps encryption when you edit encrypted file inside archive.
- 7-Zip File Manager now allows to change current folder from the address bar drop-down list.
- It's allowed to use -t switch for "list" and "extract" commands.
- Some bugs were fixed.
- New localizations: Icelandic, Kurdish Sorani.


4.58 beta      2008-05-05
-------------------------
- Some speed optimizations.
- 7-Zip now can unpack .lzma archives.
- Unicode (UTF-8) support for filenames in .ZIP archives. Now there are 3 modes:
    1) Default mode: 7-Zip uses UTF-8, if the local code page doesn't contain required symbols.
    2) -mcu switch:  7-Zip uses UTF-8, if there are non-ASCII symbols.
    3) -mcl switch:  7-Zip uses local code page.
- Now it's possible to store file creation time in 7z and ZIP archives (-mtc switch).
- 7-Zip now can unpack multivolume RAR archives created with 
  "old style volume names" scheme and names *.001, *.002, ...
- Now it's possible to use -mSW- and -mSW+ switches instead of -mSW=off and -mSW=on  
- Some bugs were fixed.
- New localizations: Punjabi (Indian), Pashto.


4.57           2007-12-06
-------------------------
- The BUG in command line version was fixed: -up3 switch 
  could work incorrectly.


4.56 beta      2007-10-24
-------------------------
- Some bugs were fixed.


4.55 beta      2007-09-05
-------------------------
- Some bugs were fixed.


4.54 beta      2007-09-04
-------------------------
- Decompression speed was increased.


4.53 beta      2007-08-27
-------------------------
- "Test" and "Info" buttons now work for open archives.
- The bug in 7-Zip 4.48 - 4.52 beta was fixed:
    7-Zip could create .ZIP archives with broken files.
- Some bugs were fixed.


4.52 beta      2007-08-03
-------------------------
- 7-Zip now can unpack Compound files (msi, doc, ...).
- Some bugs were fixed.


4.51 beta      2007-07-25
-------------------------
- Bug was fixed: 7-Zip 4.50 beta could not open some .7z archives.


4.50 beta      2007-07-24
-------------------------
- New switch for command line version:
    -ssc[-] enables/disables case-sensitive mode for file names.
- Speed optimizations for AES encryption.
- Some bugs were fixed.


4.49 beta      2007-07-11
-------------------------
- 7-Zip now can unpack WIM archives.
- 7-Zip now replaces incorrect characters in filenames during extracting.


4.48 beta      2007-06-26
-------------------------
- Encryption strength for .7z format was increased. 
  Now it uses random initialization vectors.
- Some bugs were fixed.


4.47 beta      2007-05-27
-------------------------
- Bugs of 7-Zip 4.46 beta were fixed: BZip2 could work incorrectly.


4.46 beta      2007-05-25
-------------------------
- New fast compression mode for Deflate method in Zip and GZip.
- New "Compress shared files" option in GUI and -ssw switch.
- Some bugs were fixed.
- New localization: Norwegian Nynorsk.


4.45 beta      2007-04-17
-------------------------
- Now it's possible to specify the size of solid block and the number 
  of CPU threads in "Add to archive" dialog box. 
- Default dictionary size was increased: Normal: 16 MB, Max: 32 MB.
- Speed optimizations.
- Benchmark was improved (new "b" command in command line version).
- The number of DLL files was reduced.
- Now it's possible to associate 7-zip with combined types like .tbz2
- switch -mhcf=off is not supported now.
- If -t{Type} switch is not specified, 7-Zip now uses extension of archive to 
  detect the type of archive.
- Some bugs were fixed.
- New localization: Welsh.


4.44 beta      2007-01-20
-------------------------
- Speed optimizations for LZMA, Deflate, BZip2 and unRAR.
- 7-Zip now supports file pathnames longer than 260 characters.
- Some bugs were fixed.
- New localizations: Bangla, Bashkir, Nepali.


4.43 beta      2006-09-15
-------------------------
- 7-Zip now can use multi-threading mode for compressing to .ZIP archives.
- ZIP format supporting was improved.
- 7-Zip now supports WinZip-compatible AES-256 encryption for .ZIP archives.
- New context menu items for .ZIP archives creating.
- 7-Zip now uses order list (list of extensions) for files sorting for compressing 
  to .7z archives. It can slightly increase compression ratio in some cases.
- 7-Zip now restores modification time of folders during .7z archives extracting.
- Some bugs were fixed.
- New localizations: Armenian, Marathi.



4.42           2006-05-14
-------------------------
- Compressing speed and Memory requirements were increased.
  Default dictionary size was increased: Fastest: 64 KB, Fast: 1 MB, 
  Normal: 4 MB, Max: 16 MB, Ultra: 64 MB.
- BZip2 compressing / decompressing now can work in multi-threading mode
- Multi-threading mode now is default for multi-processor systems
- 64-bit version now supports 1 GB dictionary
- 7z/LZMA now can use only these match finders: HC4, BT2, BT3, BT4
- Compression ratio in Zip/GZip/Deflate in Ultra mode was increased
- 7-Zip now can unpack ISO archives and some installers created by NSIS
- Optional "Flat View" mode in 7-Zip File Manager
- 7-Zip File Manager now can calculate CRC checksums for files
- -x switch with relative paths now affects files specified with absolute paths
- New switch for 7za.exe (console version): -slt.
  "l" (list) command with -slt shows technical information for archive.
- New switch: -scs{WIN|DOS|UTF-8} specifies charset for list files.
  Default charset for list files is UTF-8 now.
- Some bugs were fixed
- New localizations: Albanian, Kurdish


4.32           2005-12-09
-------------------------
- Bug was fixed: 7-Zip 4.31 didn't work in Windows 95


4.31           2005-12-04
-------------------------
- Small changes
- New localization: Basque


4.30 beta      2005-11-18
-------------------------
- Files 7zFMn.exe, 7zGn.exe, 7-zipn, 7za.exe, 7zC.sfx were removed from 7-zip package
- 7-Zip now uses uncompressed SFX: 7z.sfx
- Sfx modules 7z.sfx and 7zCon.sfx now use msvcrt.dll
- Speed optimizations in LZMA maximum/ultra compressing.
- LZMA now supports word size up to 273
- 7-Zip now reduces dictionary size for LZMA, if you compress files 
  smaller than specified dictionary size.
- 7-Zip now can use large memory pages:
    GUI: 7-Zip File Manager / Options / Settings / Use large memory pages.
    Command line version: -slp switch.
  This feature allows to increase speed of compressing.
  But 7-Zip can make some pause at starting of compressing for allocating large pages.
  Also Task Manager doesn't show real memory usage of program, if 7-Zip uses large pages.
  This feature works only on Windows 2003 / XP x64 / Vista. 
  Also you must have administrator's rights for your system.
  Recommended size of RAM: 1 GB or more.
  To install this feature you must run 7-Zip File Manager at least once, 
  close it and reboot system.
- Some bugs were fixed
  

4.29 beta      2005-09-28
-------------------------
- Bug was fixed: 7-Zip 4.28 beta worked incorrectly in Windows 95/98/Me


4.28 beta      2005-09-27
-------------------------
- Bug was fixed: 7-Zip 4.27 beta created incorrect multivolume archives.
- "Duplicate filename" collision problem between names with ligatures was fixed.


4.27 beta      2005-09-21
-------------------------
- 7-Zip can unpack CHM/HXS (MS HTML HELP) archives
- 7-Zip can unpack multivolume CAB archives
- Now 7-Zip deletes files to the Recycle Bin by default.
  Shift+Delete deletes files permanently.
- Some bugs were fixed
- New localization: Tatarish


4.26 beta      2005-08-05
-------------------------
- LZH format support (extracting only)
- Some bugs were fixed
- New localization: Ido


4.25 beta      2005-07-31
-------------------------
- 7-Zip now doesn't interrupt the compressing when it can not 
  find specified file as in version 4.24 beta. It just shows warning.
- 7-Zip now supports standard selection mode in the file list
- Some bugs were fixed


4.24 beta      2005-07-06
-------------------------
- 7-Zip now supports right-click Drag and Drop in Explorer
- Command line version now supports short file names (like FILENA~1.TXT)
- If there are no wildcard names and there is no -r switch in command line, 
  7-Zip now checks that specified files exist on disk before compressing.
- Some bugs were fixed


4.23           2005-06-29
-------------------------
- Drag and Drop support
- 7-Zip File Manager now can copy files from one archive to another
- Some bugs were fixed
- New localizations: Extremaduran, Malay


4.20           2005-05-30
-------------------------
- No changes 


4.19 beta      2005-05-21
-------------------------
- BZip2 code was rewritten. Now it supports 3 modes: Normal, Maximum and 
  Ultra. In Normal mode it compresses almost as original BZip2 compressor. 
  Compression ratio in Maximum and Ultra modes is 1-3% better for some files, 
  but Maximum Mode is about 3 times slower and Ultra Mode is about 8 times 
  slower than Normal mode.
- Console version now prints all messages to stdout by default,
  and if -so switch is specified, 7-Zip prints messages to stderr.
- Some bugs were fixed
- New localizations: Azeri, Georgian


4.18 beta      2005-04-19
-------------------------
- Bug in v4.17 beta was fixed: 7-Zip File Manager could crash 
  after some operations with archives

  
4.17 beta      2005-04-18
-------------------------
- To increase protection from viruses, 7-Zip now does not open 
  files with more than 4 continuous spaces in the name. 
  And 7-Zip changes such long spaces in name to " ... " in the file list.
- Code size optimization
- Some files were moved from main package to extra package:
    - Plugin for FAR Manager
    - SFX modules for installers (7zS.sfx and 7zSD.sfx)
- New localizations: Asturian, Indonesian


4.16 beta      2005-03-29
-------------------------
- Speed optimization (5%) for 7z / LZMA 
- 7za.exe now supports .Z archives
- -r- switch in command line now is default for all commands 
- Some bugs were fixed
- New localization: Uzbek


4.15 beta      2005-01-25
-------------------------
- Z format supporting (extracting only)
- 7-Zip now can extract ZIP archives compressed with "Shrink" method
- 7-Zip now doesn't interrupt the compressing when it can not open file.
  7-Zip just skips that file and shows warning.
- Some bugs were fixed
- New localization: Frisian


4.14 beta      2005-01-11
-------------------------
- 7-Zip installer was created with NSIS.
  Now it installs 7-Zip for all users (under Windows 2000/XP).
- Now 7-Zip can create multivolume archives
  (switch -v for command line)
- Some bugs were fixed
- New localizations: Breton, Farsi


4.13 beta      2004-12-14
-------------------------
- Switch "--" stops switches parsing
- Some bugs were fixed


4.12 beta      2004-11-18
-------------------------
- Bug in v4.11 beta was fixed:
    7-Zip created incorrect ZIP archives if file size was 
    from 3.75 GB to 4 GB.


4.11 beta      2004-11-16
-------------------------
- 7-Zip now shows file names during compressing/decompressing
- 7-Zip now supports Zip64 extension of ZIP format. So now it's 
  possible to compress files bigger than 4 GB to ZIP archives.
- Some bugs were fixed
- New localization: Galician


4.10 beta      2004-10-21
-------------------------
- Bugs in v4.0* were fixed:
  - Some commands in command line with "-r" switch worked incorrectly,
    so 7-zip could skip some files during compressing
  - Some other bugs were fixed
- Small internal changes

  
4.09 beta      2004-10-05
-------------------------
- Bugs in v4.0* were fixed:
  - Renaming inside archives didn't work or worked incorrectly
  - GUI SFX didn't show extracting dialog at start
- Small fixes in 7-Zip GUI (7zG.exe)


4.08 beta      2004-10-04
-------------------------
- Bug in installer for v4.07 was fixed: when rebooting 
  is required, it rebooted without asking user
- Small fixes in 7-Zip GUI (7zG.exe)


4.07 beta      2004-10-03
-------------------------
- Big amount of code was changed in this beta version.
  So don't use it for important data compressing. 
  And test archive after compressing.

- Unified command line interface to GUI and console versions
- 7-Zip now can extract or test several archives in one command  
- 7-Zip now doesn't interrupt the compressing when file is locked by 
  other application. 7-Zip just skips that file and shows warning.
  Note: previous versions of 7-Zip had bug, so they can not unpack 
  non-solid and some solid 7z archives with such skipped files.
- Command line interface was changed:
    - now it's possible to use absolute pathnames
    - syntax simplification:
        was: 7z a a Folder1\* Folder2\* -r
        now: 7z a a Folder1 Folder2
    - now it's possible to use complex wildcard commands, like *\*111*\*
- More smart detection of archive type for files with unusual
  file name extensions
- Supporting for RAR archives with encrypted headers
- CPIO format supporting was improved
- For GZip and BZip2 formats you can:
    - Compress from stdin (-si switch)
    - Compress to stdout (-so switch)
    - Extract to stdout (-so switch)
- 7-Zip File Manager:
  - Split and Combine commands
  - new list view options: Full row select, Show grid lines
- Internal reconstruction
- Some bugs were fixed
- New localizations: Friulian, Macedonian, Mongolian, Tamil, Thai


3.13           2003-12-11
-------------------------
- Some small bugs were fixed


3.12           2003-12-10
-------------------------
- Now you can select compression method, dictionary size
  and word size in "Add to archive" dialog box. Also it 
  shows memory usage.
- 7-Zip File Manager now contains toolbars.
- New "Benchmark" command in 7-Zip File Manager.
  It measures compressing and decompressing speeds and 
  shows rating values.
- Some bugs were fixed.


3.11           2003-10-06
-------------------------
- 7-zip now use limitations for solid block size
  for increasing the speed of random file decompressing:
    - in Store mode:     0  B
    - in Fast mode:     16 MB
    - in Normal mode:  256 MB
    - in Maximum mode:   1 GB 
    - in Ultra mode:     4 GB 
- 7z.exe, 7za.exe and SFX modules now support Unicode 
  file names under Windows NT/2000/XP/2003.
  7zn.exe and 7zan.exe were removed from package. 
- Some bugs were fixed
- New localization: Afrikaans

  
3.10           2003-09-27
-------------------------
- Drag-and-Drop from external application
- GUI version (7zG.exe) can compress files with absolute paths
- Compression dialog doesn't suggest bzip2 and gzip2 types when 
  there are more than one selected file
- Optional auto renaming for existing files during extraction 
  in command line version (-aot switch).
- Some bugs were fixed


3.09.02        2003-09-20
-------------------------
- Optional limitation for solid block size for increasing 
  the speed of random file decompressing (-ms switch)


3.09.01 beta   2003-09-06
-------------------------
- Automatic compression filter for executable files:
  dll, exe, ocx, sfx, sys, (-mf switch)
- Compression levels in 7z now are:
    - Fast:    32 KB dictionary, BCJ filter
    - Normal:   2 MB dictionary, BCJ filter
    - Maximum:  8 MB dictionary, BCJ filter, max settings
    - Ultra:   32 MB dictionary, BCJ2 filter, max settings
- Updating solid 7z archives now is supported, if it doesn't 
  require repacking solid blocks
- -mhcf switch for 7z format now is default
- Some bugs were fixed


3.08.04 beta   2003-08-24
-------------------------
- Favorites menu in 7-Zip File Manager
- Some bugs were fixed


3.08.03 beta   2003-08-21
-------------------------
- Automatic adding of extension to archive name in Compress Dialog
- Some bugs in previous 3.08.* versions were fixed:
    - Storing columns width inside archives in File Manager
    - Opening archive inside archive
    - Quotes in list files in console version


3.08.02 beta   2003-08-20
-------------------------
- Some bugs were fixed


3.08 beta      2003-08-19
-------------------------
- Compress dialog:
   - Supporting fast compressing mode (-mx=1 switch)
   - Multi-threading option for Multi-Processor systems 
     or Pentium 4 with Hyper-Threading
   - Encrypt file names option
- New context menu items:
   - Extract here
   - Extract to <Folder>
   - Compress and email
- Internal reconstruction, registry using was reduced
- New localization: Esperanto


2.30 Beta 32   2003-05-15
-------------------------
- New features in compressing / decompressing window.
- "Show password" option.
- Some other small changes.
- New localization: Valencian.


2.30 Beta 31   2003-04-29
-------------------------
- Some bugs were fixed.


2.30 Beta 30   2003-04-19
-------------------------
- 7-Zip File Manager:
   - Showing .. item.
   - 1/2 Panels mode switching (F9).
- Supporting Bzip2 compression in ZIP archives.
- Some bugs were fixed.
- Some optimization recompiling for reducing code size.


2.30 Beta 29   2003-04-07
-------------------------
- 7-Zip File Manager:
   - "7-Zip" and "System" submenus in "Files" menu.
   - Path history and "Browse" button in "Copy" dialog.
- RAR supporting was improved.
- Some bugs were fixed.
- Small changes in LZMA code.
- New localizations: Hebrew, Vietnamese.


2.30 Beta 28   2003-02-16
-------------------------
- Some bugs were fixed:
   - Updating 7z archives that are larger than 4 GB.
   - Using anti-items in 7z format.
   - Compressing empty files with password to zip format.
- In max mode 7z now uses 8 MB dictionary instead of 4 MB.
- 7-Zip File Manager:
   - Supporting file comments: Ctrl-Z.
   - New key alias for folder bookmarks: [Shift]+Alt+Number.


2.30 Beta 27   2003-01-24
-------------------------
- Two BUGs in two previous beta versions (Beta 25 and Beta 26) 
  were fixed:
    1. Incorrect compressing to non-solid 7z archive
       when files have some very big sizes:
       4 GB, 8 GB, 12 GB, 16 GB, ... 
    2. Incorrect percent showing in 7z compressing
       when files are bigger than 4 GB.
- Supporting multivolume RAR and SPLIT archives. 
- Supporting DEB archives.
- Supporting old version of CPIO format.
- Some bugs were fixed.
- New localizations: Korean, Swedish.


2.30 Beta 26   2003-01-12
-------------------------
- Supporting Deflate64 method in Zip archives.
- Supporting Rar 1.50 archives.
- Some bugs were fixed.


2.30 Beta 25   2003-01-02
-------------------------
- Encryption feature for 7z format (AES-256).
- New optional archive header compressing mode (-mhcf).
- Archive headers now always are compressed with LZMA method.
- Updating non-solid 7z archives without -ms=off now is allowed.
- Folder creating and item renaming inside archive now is supported.
- Supporting encrypted Rar3 archives.
- Supporting Unicode names in Rar3 archives.
- Some bugs were fixed.
- New localizations: Lithuanian, Voro.


2.30 Beta 24   2002-11-01
-------------------------
- Some internal reconstructions.
- -m switch syntax was slightly changed.
- Some bugs were fixed.
- New localizations: Catalan, Norwegian, Romanian.

  
2.30 Beta 23   2002-09-07
-------------------------
- Encryption feature for zip format.
- Percent indicating for some operations.
- Some bugs were fixed.

  
2.30 Beta 22   2002-08-31
-------------------------
- New program: 7-Zip File Manager.
- Command line version now doesn't allow absolute paths
  for compressing files.
- New localizations: Belarusian, Greek.
- Bug in FAR plugin was fixed:
    Incorrect updating when archive has no explicit 
    directory items for file items.
- Some bugs were fixed.

  
2.30 Beta 21   2002-07-08
-------------------------
- RAM requirements for LZMA (7z) compression were reduced.
- Small bug in FAR plugin was fixed.


2.30 Beta 20   2002-07-01
-------------------------
- RAM requirements for LZMA (7z) decompression were reduced.
- New localization: Turkish.
- Some bugs were fixed.


2.30 Beta 19   2002-04-11
-------------------------
- Supporting RAR 3.0 archives.
- New localizations: Danish, Ukrainian.


2.30 Beta 18   2002-03-25
-------------------------
- Compressing speed in 7z format was slightly increased.
- New localizations: Estonian, Finnish.
- Some bugs were fixed.


2.30 Beta 17   2002-03-03
-------------------------
- Supporting ARJ archives.
- New localization: Chinese Simplified.


2.30 Beta 16   2002-02-24
-------------------------
- Supporting RPM and CPIO archives.
- New fast compression mode for LZMA: -m0a=0.
- New match finders for LZMA: bt4b, hc3, hc4.
- Some bugs were fixed.


2.30 Beta 15   2002-02-17
-------------------------
- Compression ratio in 7z was slightly improved.
- New localization: Dutch.


2.30 Beta 14   2002-02-10
-------------------------
- Speed optimization for multiprocessor computers (-mmt switch).
- New localizations: Czech, Japanese, Polish.
- Some bugs were fixed.


2.30 Beta 13   2002-01-31
-------------------------
- New SFX module for installers.
- New match finder for LZMA: bt3.
- New localizations: Portuguese, Portuguese Brazil, Serbo-Croatian.
- Some bugs were fixed.


2.30 Beta 12   2002-01-16
-------------------------
- Bug was fixed: memory leak in Beta 11.
- New localization: Hungarian.


2.30 Beta 11   2002-01-15
-------------------------
- Archive testing feature for GUI version.
- Now 7-Zip can use more than 256 MB of RAM in all Windows versions.
- New localizations: Bulgarian, Chinese Traditional, Latvian, Slovak.
- Some bugs were fixed.


2.30 Beta 10   2002-01-11
-------------------------
- Bugs were fixed:
    - Updating 7z archives in Beta 8 and 9 didn't work.
    - Unicode version in Beta 9 didn't work in Windows NT4.
    - Some other bugs were fixed.
- New localizations: Arabic, French, Italian, Slovenian, Spanish.


2.30 Beta 9    2002-01-08
-------------------------
- Program localization: English, German, Russian.
- Additional optimized versions of programs 
  for Windows NT4/2000/XP.
- Two new match finders for LZMA: pat3h and pat4h.
- Some bugs were fixed.


2.30 Beta 8    2001-12-21
-------------------------
- 7-Zip now supports some zip archives that were not 
  supported by previous versions.
- 7-Zip now supports new state (-uw switch) for cases
  when 7-Zip can not detect whether file is newer or the same.
- Supporting anti-items in 7z format for incremental 
  update (-u with action #3).
- Some bugs were fixed.


2.30 Beta 7    2001-11-04
-------------------------
- BCJ2: new converter for x86 code.
- Supporting tar archives with very long file names
  (GNU extension to 'tar' format).
- Supporting multistream coders in 7z (-mb switch).
- More compressing parameters for zip and gzip 
  in console version (-m switch).
- Solid compressing option in Windows version.
- Compressing parameters option in Windows version.
- Auto renaming existing files feature for 
  extracting files.
- Overwrite mode switch for extracting (-ao).
- Some bugs were fixed.


2.30 Beta 6    2001-10-13
-------------------------
- Supporting 7z format in MultiArc plugin for FAR Manager.
- Some bugs were fixed.


2.30 Beta 5    2001-10-02
-------------------------
- Creating SFX archives from explorer.
- 7zWin.sfx: Windows version of SFX module.
- Auto adding .exe extension to SFX archive name.
- 7za.exe now supports 7z, bzip2, gzip, tar, zip.
- Some bugs were fixed.


2.30 Beta 4    2001-09-15
-------------------------
- Self extract capability for 7z format.
- 7z archive format is default for 7z.exe and 7za.exe.
- 7z in default mode now uses bt234 match finder
  and solid compression.
- 7z in maximum mode (-mx) now uses 4MB dictionary.


2.30 Beta 3    2001-09-10
-------------------------
- Bug was fixed: decompressing .7z solid archives 
  containing empty files.
- new 7za.exe: standalone command line version 
  (only for 7z format).
- Speed of compressing to Deflate format (zip, gzip) 
  was slightly increased.


2.30 Beta 2    2001-08-30
-------------------------
- Supporting the new 7z format with high compression ratio.
- -bd (Disable percentage indicator) switch in 
  console version.
- Bug in console version was fixed: 
    previous versions incorrectly execute compression 
    commands with non-recursive wildcards in combination 
    with subfolders.
- Some other bugs were fixed.


2.30 Beta 1    2001-05-07
-------------------------
- Speed of reading of archive contents was increased.
- Bug was fixed: incorrect showing file names with 
  national charsets in some zip archives.
- Now it is possible to compress files larger than 4GB 
  to GZip archives.


2.24           2001-03-21
-------------------------
- Bugs in GZip and Cab decoders were fixed.


2.23           2001-03-04
-------------------------
- Opening archive items in Explorer.
- Context menu for archive items in Explorer.
- Automatic adding extension to archive name in console version.
- Some bugs were fixed.


2.22           2001-01-21
-------------------------
- Supporting Zip archives containing more than 65535 files.
- Speed of Plugin for Explorer was increased.
- Searching start position of archive now is limited by 
  first 1MB part of file.
- Some bugs were fixed.
- Packet now doesn't contain 7zip.exe, far7zip.reg and 
  far7zip2.reg files. There is new far7z.reg file.


2.21           2000-12-21
-------------------------
- FAR Plugin was improved:

    - Showing process box during opening archives.
    - Viewing properties of file by Ctrl-A.
    - Alt-F6 in archive now immediately extracts selected files 
      to current directory.
      
- Some bugs were fixed:
    
    - Entering to archive's subfolders in Explorer by clicking 
      items in main window didn't work under Windows ME/2000.
    - Decompressing solid Rar archives sometimes gave error.
    - Console version 7z.exe during list operation incorrectly 
      showed file names with national (non-english) charsets.
    - FAR Plugin didn't execute some operations.
    - Showing percents during extracting ZIP archives sometimes 
      was incorrect.


2.20           2000-11-20
-------------------------
- Supporting BZip2 and Cab.
- New program architecture with external
  compression and cryptographic modules.
- Decryption support (Rar and Zip). 
- New console client. 
- Some bugs were fixed.


2.11           2000-06-15
-------------------------
- Bugs were fixed:

    - FAR Plugin incorrectly processed
      names of subdirectories that use national
      (non-english) charsets.
    - gzip plugin could not compress empty files.


2.10           2000-05-16
-------------------------
- First level 7-Zip Plugin for FAR Manager.
- GUI version with integration to Windows Shell.
- Compression and decompressing GZip and TAR formats.
- Decompression RAR.
- Install & Uninstall support.
- Some bugs were fixed.


2.01           1999-09-19
-------------------------
- Small bug was fixed.
- Compression ratio was improved for some files.


2.00           1999-07-18
-------------------------
- Release.
- Big bug was fixed: previous versions incorrectly worked
    during compressing with files that were referred by
    direct(without wildcards) paths, containing subdirs parts.
- Compression and decompression speed were improved.
- -mx switch (maXimize compression) was added.
- Small bugs were fixed.


2.00 Beta 1    1999-01-02
-------------------------
- Original beta version.


End of document




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