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7-Zip 24.03 Beta – Free File Archiver

7-Zip 24.03 Beta – Free File Archiver
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7-Zip is an open source file archiver with the high compression ratio predominantly for the Microsoft Windows operating system.

It operates either as a command line program or with a graphical user interface. It also features integration with the Windows shell environment.

Compression ratio results are very dependent upon the data used for the tests. Usually, 7-Zip compresses to 7z format 30-70% better than to zip format. And it compresses to zip format 2-10% better than most of other zip compatible programs.

7-Zip is free software, developed by Igor Pavlov and distributed under the GNU LGPL license. This file archiver works on all Windows operating systems, from Windows NT to 10 (32-bit and 64-bit).

The main features of 7-Zip:

  • High compression ratio in new 7z format with LZMA compression and LZMA2 compression
  • For ZIP and GZIP formats, the provided compression ratio 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
  • 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.

Changes in 7-Zip 24.02 Beta (2024-03-22):

  • The app now can use new RISCV filter for compression to 7z and xz archives.
    RISCV filter can increase compression ratio for data containing executable files compiled for RISC-V architecture.
  • The speed for LZMA and LZMA2 decompression in ARM64 version for Windows was increased by 20%-60%.
  • The GUI and File Manager can ask user permission to unpack RAR archives that require big amount of memory, if the dictionary size in RAR archive is larger than 4 GB.
  • new switch -smemx{size}g : to set allowed memory usage limit for RAR archive unpacking.
    RAR archives can use dictionary up 64 GB. Default allowed limit for RAR unpacking is 4 GB.
  • 7zg.exe (7-Zip GUI): -y switch disables user requests and messages.
  • The app shows hash methods XXH64 and BLAKE2sp in context menu.
  • -slmu switch : to show timestamps as UTC instead of LOCAL TIME.
  • -slsl switch : in console 7-Zip for Windows : to show file paths with
    linux path separator slash ‘/’ instead of backslash separator ‘\’.
  • The app supports .sha256 files that use backslash path separator ‘\’.
  • Some bugs were fixed.
  • the bug in 7-Zip 24.02 was fixed: it couldn’t open ISO archives.

Changes in 7-Zip 24.01 Beta (2024-01-30):

  • Now can unpack ZSTD archives (.zst filename extension).
  • Now can unpack ZIP, SquashFS and RPM archives that use ZSTD compression method.
  • Now supports fast hash algorithm XXH64 that is used in ZSTD.
  • Now can unpack RAR archives (that use larger than 4 GB dictionary) created by new WinRAR 7.00.
  • Now can unpack DMG archives that use XZ (ULMO/LZMA) compression method.
  • Speed optimizations for archive unpacking: rar, cab, wim, zip, gz.
  • Now can unpack NTFS images with cluster size larger than 64 KB.
  • Now can unpack MBR and GDP images with 4 KB sectors.
  • Speed optimizations for hash caclulation: CRC-32, CRC-64, Blake2sp.
  • Fixed bug: the app for Linux could fail for multivolume creation in some cases.
  • Some bugs were fixed.

Homepage – https://www.7-zip.org

Supported Operating Systems:

  • Windows XP, Vista, 7, 8, 8.1, 10, 11 (32-bit, 64-bit).
  • Windows Server 2003, 2008, 2012, 2016, 2019.

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