The renonwned opensource compression utility for Windows, 7-Zip, reaches a new stable version – 4.42. Essentially a bug fix release, this version does not bring any notable additions since the last betas, but there are new features since the last stable version, 4.32. Check out below for full changelog information since 7-Zip 4.32 and download options.

There’s also a separate package that includes only the command line version of 7-Zip (see below for download links).

The LZMA SDK has been updated as well to version 4.42.

The Linux port of 7-Zip doesn’t seem to have been refreshed, the version available from the p7zip project is still 4.39.

*** WHAT’S NEW IN 7-ZIP 4.42 ***

- 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.
- 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
- BZip2 compressing / decompressing now can work in multi-threading mode
- Multi-threading mode now is default for multi-processor systems
- New switch: -scs{WINDOSUTF-8} specifies charset for list files. Default charset for list files is UTF-8 now.
- New localization: Albanian
- New switch for 7z.exe (console version): -slt (“l” (list) command with -slt shows technical information for archive)
- 7-Zip now can unpack ISO archives
- 7-Zip File Manager now can calculate CRC checksums for files
- x switch with relative paths now affects files specified with absolute paths
- Optional Flat View mode in 7-Zip File Manager
- 7-Zip now can unpack some installers created by NSIS
- New localization: Kurdish
- Some bugs were fixed

*** RELEVANT LINKS ***

Full 7-Zip Review
Download 7-Zip 4.42 for Windows (.exe – 818KB)
Download 7-Zip 4.42 for Windows (MSI – 874KB)
Download 7-Zip 4.42 for Windows x64 (MSI – 1.23MB)
Download 7-Zip 4.42 for Windows ia64 (MSI – 1.86MB)
Download 7-Zip 4.42 for Windows Command Line Only (.zip – 302KB)
Download p7zip 4.39 for Linux x86 (2MB)

A new beta for 7-Zip, the renowned open source compression program has just been unleashed today.

7-Zip 4.41 Beta is basically a bugfix release, the changelog being extremely scarce in details about the specific bugs being actually fixed.

*** WHAT’S NEW IN 7-ZIP 4.41 BETA ***

Changes:

- Some bugs were fixed

*** RELEVANT LINKS ***

Full 7-Zip Review
Download 7-Zip Beta 4.41 for Windows (.exe – 818KB)
Download 7-Zip Beta 4.41 for Windows (MSI – 874KB)
Download 7-Zip Beta 4.41 for Windows x64 (MSI – 1.23MB)
Download p7zip 4.39 for Linux x86 (2MB)

May started with a new beta release for 7-Zip, the renowned open source compression program.

The highlight new feature of 7-Zip 4.40 Beta is support for unpacking (some) software installers created with Nullsoft’s NSIS setup creator. See below for full changelog information.

*** WHAT’S NEW IN 7-ZIP 4.40 BETA ***

Changes:
- 7-Zip now can unpack some installers created by NSIS
- New localization: Kurdish
- Some bugs were fixed

*** RELEVANT LINKS ***

Full 7-Zip Review
Download 7-Zip Beta 4.40 for Windows (.exe – 818KB)
Download 7-Zip Beta 4.40 for Windows (MSI – 874KB)
Download 7-Zip Beta 4.40 for Windows x64 (MSI – 1.23MB)
Download p7zip 4.39 for Linux x86 (2MB)

The 13th of April seems to have had a special effect on 7-Zip’s development cycle – we got two betas, released about two hours apart.

The second beta, 4.39, is again a bugfix release, but this time we get to know the bug fixed, check below.

*** WHAT’S NEW IN 7-ZIP 4.39 BETA ***

Bug in versions 4.33b to 4.38b was fixed:
* 7-Zip could not correctly compress files larger than 2 GB to 7z archive in fast/fastest modes (HC4 match finder).

*** RELEVANT LINKS ***

Full 7-Zip Review
Download 7-Zip 4.39 Beta for Windows (.exe – 805KB)
Download 7-Zip 4.39 Beta for Windows (MSI – 860KB)
Download 7-Zip 4.39 Beta for Windows x64 (MSI – 1.2MB)
Download p7zip 4.39 for Linux (1.7MB)

Igor Pavlov has just unleashed a fresh 7-Zip beta: 4.38. It appears to be mostly a bugfix release, since the changelog is not very generous in terms of details (see below).

*** WHAT’S NEW IN 7-ZIP 4.38 BETA ***

- Some bugs were fixed

*** RELEVANT LINKS ***

Full 7-Zip Review
Download 7-Zip Beta 4.38 for Windows (.exe – 805KB)
Download 7-Zip Beta 4.38 for Windows (MSI – 860KB)
Download 7-Zip Beta 4.38 for Windows x64 (MSI – 1.2MB)
Download p7zip for Linux (1.7MB)

7-Zip, the leading opensource compression tool for Windows in a new (beta) version, with UI additions and bugfixes! See below for more details downloads and reviews.

*** WHAT’S NEW IN 7-ZIP 4.37 BETA ***

-x switch with relative paths now affects files specified with absolute paths
- Optional Flat View mode in 7-Zip File Manager
- Some bugs were fixed

*** RELEVANT LINKS ***

7-Zip Homepage
7-Zip Review
Download 7-Zip 4.37 Beta for Windows 32bit (.exe – 837KB)
Download 7-Zip 4.37 Beta for Windows x64 (.exe – 1.09MB)
Download 7-Zip 4.37 Beta for Windows ia64 (.exe – 1.38MB)
Main 7-Zip Download page (Other packages, platforms, etc)