7-Zip 21.05 是今年发布的第一个主要稳定版本,上一个版本可以追溯到 19.00 版,于 2019 年 2 月发布。
与 7-Zip 19.00 相比,21.05 的重要变化包括:
- 支持解压 b64 文件(Base64 编码)
- 7-Zip 支持新的 AMD Ryzen 和 Intel CPU 所支持的 SHA-1 和 SHA-256 的硬件指令;这提高了某些操作的性能,包括 ZIP AES 的加密和解密、哈希值的计算,以及 7z、ZIP 和 RAR 的加密和解密的密钥派生速度
- 改进了 ZIP AES 加密和 7z、RAR 和 ZIP AES 解密
- 改进了快速和最快压缩级别的压缩率
- ARM64 版本对 AES、CRC-32、SHA-1 和 SHA-256 的速度改进
- LZMA/LZMA2 压缩操作的最大字典大小增加到 4G
- ARM64 版本中 macOS 和 Linux 的 LZMA 和 LZMA2 的解压速度提高了 20-60%
- 7-Zip 在 ZIP 档案中为 UTF-8 编码的文件名写入一个附加字段
- 如果 RAM 大小不足以进行大的 LZMA2 字典的压缩操作,则会删除工作的 CPU 线程数来进行压缩
- 7-Zip 可能会创建文本文件 file.sha256,其中包含所有的文件名和 SHA-256 校验和。该程序也可能检查该文件以验证文件
- 「Add to Archive」窗口支持设置内存使用限制
更多详情可查看:https://www.7-zip.org/history.txt
7-Zip is a file archiver with a high compression ratio.
Download 7-Zip 21.05 (2021-11-20) for Windows:
Link | Type | Windows | Size |
---|---|---|---|
Download | .exe | 64-bit x64 | 1.5 MB |
Download | .exe | 32-bit x86 | 1.2 MB |
Download | .exe | 64-bit ARM64 | 1.5 MB |
License
7-Zip is free software with open source. The most of the code is under the GNU LGPL license. Some parts of the code are under the BSD 3-clause License. Also there is unRAR license restriction for some parts of the code. Read 7-Zip License information.
You can use 7-Zip on any computer, including a computer in a commercial organization. You don’t need to register or pay for 7-Zip.
The main features of 7-Zip
- High compression ratio in 7z format with LZMA and LZMA2 compression
- Supported formats:
- Packing / unpacking: 7z, XZ, BZIP2, GZIP, TAR, ZIP and WIM
- Unpacking only: AR, ARJ, CAB, CHM, CPIO, CramFS, DMG, EXT, FAT, GPT, HFS, IHEX, ISO, LZH, LZMA, MBR, MSI, NSIS, NTFS, QCOW2, RAR, RPM, SquashFS, UDF, UEFI, VDI, VHD, VMDK, WIM, XAR and Z.
- For ZIP and GZIP formats, 7-Zip provides a compression ratio that is 2-10 % better than the ratio provided by PKZip and WinZip
- Strong AES-256 encryption in 7z and ZIP formats
- Self-extracting capability for 7z format
- Integration with Windows Shell
- Powerful File Manager
- Powerful command line version
- Plugin for FAR Manager
- Localizations for 87 languages
7-Zip works in Windows 10 / 8 / 7 / Vista / XP / 2019 / 2016 / 2012 / 2008 / 2003 / 2000.
p7zip – the port of the command line version of 7-Zip to Linux/Posix.
On 7-Zip’s SourceForge Page you can find a forum, bug reports, and feature request systems.