7zip password security generator#
7zip password security update#
7zip password security archive#
7zip password security full#
7zip password security rar#

7zip File Manager now can open nested multi-block xz archives (for example, ) without full unpacking of xz archive. xz decoder now can unpack random block from multi-block xz archives.Block size can be specified with -ms switch. 7zip now creates multi-block xz archives by default.7zip now uses additional memory buffers for multi-block LZMA2 compression. Minor speed optimization for LZMA2 (xz and 7z) multi-threading compression.

7zip password security archive#

new -sse switch to stop archive creating, if 7zip canРІР‚в„ўt open some input file.

The BUG was fixed: extracting from tar with -si switch didnРІР‚в„ўt set timestamps for directories.

7zip password security update#

7zip now doesnРІР‚в„ўt allow update operation for archives that have read-only attribute.

7zip now can unpack DMG archives that use LZFSE compression method.

7zip now can use multi-threading for xz decoding, if there are multiple blocks in xz stream.

7zip now can use multi-threading for 7z/LZMA2 decoding, if there are multiple independent data chunks in LZMA2 stream.

The speed for single-thread LZMA/LZMA2 decoding was increased by 30% in РµСљвЂ 4 version and by 3% in x86 version.

7zip password security rar#

The vulnerability in RAR unpacking code was fixed (CVE-2018-10115).

Now 7zip doesnРІР‚в„ўt use РІР‚СљLarge PagesРІР‚Сњ on Windows 10 up to revision 1709 (16299).

Previous versions of 7zip could work incorrectly in РІР‚СљLarge memory pagesРІР‚Сњ mode in Windows 10 because of some BUG with РІР‚СљLarge PagesРІР‚Сњ in Windows 10.

Some improvements in zip, hfs and dmg code.

7zip now shows Properties (Info) window and CRC/SHA results window as РІР‚Сљlist viewРІР‚Сњ window instead of РІР‚Сљmessage boxРІР‚Сњ window.

The speed for LZMA/LZMA2 compressing was increased by 8% for fastest/fast compression levels and by 3% for normal/maximum compression levels.

7zip 18.02-18.05 used only one CPU thread for bz2 archive creation.

The bug in 7zip 18.02-18.05 was fixed: there was memory leak in xz decoder.

The speed for LZMA/LZMA2 compressing was increased by 3-10%, and there are minor changes in compression ratio.

7zip password security generator#

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.

There is 2% speed optimization in 7-Zip benchmarkРІР‚в„ўs decompression.

The existing code of x86/РµСљвЂ 4 AES-NI was improved also.

7-Zip now can use new x86/РµСљвЂ 4 VAES (AVX Vector AES) instructions, supported by Intel Ice Lake CPU.

The speed of zip AES encryption and 7z/zip/rar AES decryption was increased with the following improvements:.

the speed of key derivation for encryption/decryption in 7z/zip/rar archives.

the speed of encryption/decryption in zip AES,.

the speed of SHA-1/SHA-256 hash value calculation,.

7-Zip now can use new x86/РµСљвЂ 4 hardware instructions for SHA-1 and SHA-256, supported by AMD Ryzen and latest Intel CPUs: Ice Lake and Goldmont.

7-Zip now can unpack files encoded with Base64 encoding (b64 filename extension).

bzip2 decoding code was updated to support bzip2 archives, created by lbzip2 program.

Minor speed optimizations in multithreaded LZMA/LZMA2 compression for Normal/Maximum/Ultra compression levels.

Fast level (-mx3) : hc5 match finder with 4 MB dictionary.

Fastest level (-mx1) : hc5 match finder with 256 KB dictionary.

The compression ratio was improved for Fast and Fastest compression levels with the following default settings:.

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.

If the switch -ssp is specified, 7-Zip doesnРІР‚в„ўt allow the system to modify РІР‚СљLast Access TimeРІР‚Сњ property of source files for archiving and hashing operations.

The speed of PPMd compressing/decompressing was increased for 7z/ZIP/RAR archives.

It allows to increase the compression speed for big 7z archives, if there is a big number of CPU cores and threads.

The default number of LZMA2 chunks per solid block in 7z archive was increased to 64.

New localizations: Tajik, Uzbek (Cyrillic).

The bug in versions 18.02 РІР‚вЂњ 21.00 was fixed: 7-Zip could not correctly extract some ZIP archives created with xz compression method.

The improvements for speed of ARM64 version using hardware CPU instructions for AES, CRC-32, SHA-1 and SHA-256.

The command line version of 7-Zip for Linux was released.

Some changes and improvements in ZIP, TAR and NSIS code.The speed for LZMA and LZMA2 decompression in arm64 versions for macOS and Linux was increased by 20%-60%.The command line version of 7-Zip for macOS was released.It allows to extract correct file name from zip archives on different systems. 7-Zip now writes additional field for filename in UTF-8 encoding to zip archives.Minor speed optimizations in LZMA/LZMA2 compressing.The maximum dictionary size for LZMA/LZMA2 compressing was increased to 4 GB (3840 MiB).The 7zip Release Notes tell you what has changed in every new version of the program.