21.02-v1.5.0-R1

7-Zip-zstd 21.02-v1.5.0-R1 with NSIS script decompiling

• 7z****-x64.exe: 7-Zip for 64-bit Windows (x64).
• 7z****-x86.exe: 7-Zip for 32-bit Windows (x86).
• 7z****.7z: Everything compiled.

Compatibility

• 7-Zip for 64-bit Windows (x64): Windows Vista and above.
• 7-Zip for 32-bit Windows (x86): Windows Vista and above.

21.02 alpha

7-zip 21.02 alpha with NSIS script decompiling

• 7z****-x64.exe: 7-Zip for 64-bit Windows (x64).
• 7z****-x86.exe: 7-Zip for 32-bit Windows (x86).
• 7z****.7z: Everything compiled.

Compatibility

• 7-Zip for 64-bit Windows (x64): Windows Vista and above.
• 7-Zip for 32-bit Windows (x86): Windows XP and above.

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.

19.00-v1.4.5-R2

7-Zip-zstd 19.00-v1.4.5-R2 with NSIS script decompiling

• 7z****-x64.exe: 7-Zip for 64-bit Windows (x64).
• 7z****-x86.exe: 7-Zip for 32-bit Windows (x86).
• 7z****.7z: Everything compiled.

Compatibility

• 7-Zip for 64-bit Windows (x64): Windows Vista and above.
• 7-Zip for 32-bit Windows (x86): Windows Vista and above.

19.00-v1.4.4-R3

7-Zip-zstd 19.00-v1.4.4-R3 with NSIS script decompiling

• 7z****-x64.exe: 7-Zip for 64-bit Windows (x64).
• 7z****-x86.exe: 7-Zip for 32-bit Windows (x86).
• 7z****.7z: Everything compiled.

Compatibility

• 7-Zip for 64-bit Windows (x64): Windows Vista and above.
• 7-Zip for 32-bit Windows (x86): Windows XP and above.

Build Changes

• Compiles with Visual Studio 2019

19.00

7-zip 19.00 with NSIS script decompiling

• 7z****-x64.exe: 7-Zip for 64-bit Windows (x64).
• 7z****-x86.exe: 7-Zip for 32-bit Windows (x86).
• 7z****.7z: Everything compiled.

Compatibility

• 7-Zip for 64-bit Windows (x64): Windows Vista and above.
• 7-Zip for 32-bit Windows (x86): Windows XP and above.

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

7-zip 18.06 with NSIS script decompiling

• 7z****-x64.exe: 7-Zip for 64-bit Windows (x64).
• 7z****-x86.exe: 7-Zip for 32-bit Windows (x86).
• 7z****.7z: Everything compiled.

Compatibility

• 7-Zip for 64-bit Windows (x64): Windows Vista and above.
• 7-Zip for 32-bit Windows (x86): Windows XP and above.

Build Changes

• Compiles with Visual Studio 2017

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.

18.05.1

7-zip 18.05 with NSIS script decompiling

• 7z****-x64.exe: 7-Zip for 64-bit Windows (x64).
• 7z****-x86.exe: 7-Zip for 32-bit Windows (x86).
• 7z****.7z: Everything compiled.

Compatibility

• 7-Zip for 64-bit Windows (x64): Windows Vista and above.
• 7-Zip for 32-bit Windows (x86): Windows XP and above.

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.

18.05

7-zip 18.05 with NSIS script decompiling

• 7z****-x64.exe: 7-Zip for 64-bit Windows (x64).
• 7z****-x86.exe: 7-Zip for 32-bit Windows.
• 7z****.7z: Everything compiled.

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.

7-zip 18.03 beta

7-zip 18.03 beta with NSIS script decompiling

• 7z****-x64.exe: 7-Zip for 64-bit Windows x64.
• 7z****-x86.exe: 7-Zip for 32-bit Windows.
• 7z****.7z: Everything compiled.

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.