mirror of
https://git.suyu.dev/suyu/suyu.git
synced 2024-11-05 06:22:45 +01:00
210 lines
7.8 KiB
Text
Executable file
210 lines
7.8 KiB
Text
Executable file
7-Zip Extra history
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-------------------
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This file contains only information about changes related to that package exclusively.
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The full history of changes is listed in history.txt in main 7-Zip program.
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21.07 2021-12-26
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-------------------------
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- New switches: -spm and -im!{file_path} to exclude directories from processing
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for specified paths that don't contain path separator character at the end of path.
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- The sorting order of files in archives was slightly changed to be more consistent
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for cases where the name of some directory is the same as the prefix part of the name
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of another directory or file.
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- TAR archives created by 7-Zip now are more consistent with archives created by GNU TAR program.
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21.06 2021-11-24
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-------------------------
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- New switch -mmemuse={N}g / -mmemuse=p{N} to set a limit on memory usage (RAM)
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for compressing and decompressing.
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- Bug in versions 21.00-21.05 was fixed:
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7-Zip didn't set attributes of directories during archive extracting.
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- Some bugs were fixed.
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21.04 beta 2021-11-02
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-------------------------
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- 7-Zip now reduces the number of working CPU threads for compression,
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if RAM size is not enough for compression with big LZMA2 dictionary.
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- 7-Zip now can create and check "file.sha256" text files that contain the list
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of file names and SHA-256 checksums in format compatible with sha256sum program.
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7-Zip can work with such checksum files as with archives,
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but these files don't contain real file data.
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The context menu commands for command line version::
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7z a -thash file.sha256 *.txt
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7z t -thash file.sha256
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7z t -thash -shd. file.sha256
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New -shd{dir_path} switch to set the directory that is used to check files
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referenced by "file.sha256" file for "Test" operation.
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If -shd{dir_path} is not specified, 7-Zip uses the directory where "file.sha256" is stored.
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- New -xtd switch to exclude directory metadata records from processing.
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21.03 beta 2021-07-20
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-------------------------
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- The maximum dictionary size for LZMA/LZMA2 compressing was increased to 4 GB (3840 MiB).
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- Minor speed optimizations in LZMA/LZMA2 compressing.
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21.02 alpha 2021-05-06
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-------------------------
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- 7-Zip now writes additional field for filename in UTF-8 encoding to zip archives.
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It allows to extract correct file name from zip archives on different systems.
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- Some changes and improvements in ZIP and TAR code.
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21.01 alpha 2021-03-09
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-------------------------
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- The improvements for speed of ARM64 version using hardware CPU instructions
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for AES, CRC-32, SHA-1 and SHA-256.
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- The bug in versions 18.02 - 21.00 was fixed:
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7-Zip could not correctly extract some ZIP archives created with xz compression method.
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- Some bugs were fixed.
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20.02 alpha 2020-08-08
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-------------------------
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- The default number of LZMA2 chunks per solid block in 7z archive was increased to 64.
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It allows to increase the compression speed for big 7z archives, if there is a big number
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of CPU cores and threads.
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- The speed of PPMd compressing/decompressing was increased for 7z/ZIP archives.
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- The new -ssp switch. If the switch -ssp is specified, 7-Zip doesn't allow the system
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to modify "Last Access Time" property of source files for archiving and hashing operations.
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- Some bugs were fixed.
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20.00 alpha 2020-02-06
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-------------------------
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- 7-Zip now supports new optional match finders for LZMA/LZMA2 compression: bt5 and hc5,
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that can work faster than bt4 and hc4 match finders for the data with big redundancy.
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- The compression ratio was improved for Fast and Fastest compression levels with the
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following default settings:
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- Fastest level (-mx1) : hc5 match finder with 256 KB dictionary.
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- Fast level (-mx3) : hc5 match finder with 4 MB dictionary.
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- Minor speed optimizations in multithreaded LZMA/LZMA2 compression for Normal/Maximum/Ultra
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compression levels.
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- bzip2 decoding code was updated to support bzip2 archives, created by lbzip2 program.
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19.02 alpha 2019-09-05
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-------------------------
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- 7-Zip now can use new x86/x64 hardware instructions for SHA-1 and SHA-256, supported
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by AMD Ryzen and latest Intel CPUs: Ice Lake and Goldmont.
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It increases
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- the speed of SHA-1/SHA-256 hash value calculation,
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- the speed of encryption/decryption in zip AES,
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- the speed of key derivation for encryption/decryption in 7z/zip/rar archives.
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- The speed of zip AES encryption and 7z/zip/rar AES decryption was increased with
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the following improvements:
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- 7-Zip now can use new x86/x64 VAES (AVX Vector AES) instructions, supported by
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Intel Ice Lake CPU.
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- The existing code of x86/x64 AES-NI was improved also.
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- Some bugs were fixed.
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19.00 2019-02-21
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-------------------------
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- Encryption strength for 7z archives was increased:
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the size of random initialization vector was increased from 64-bit to 128-bit,
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and the pseudo-random number generator was improved.
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- Some bugs were fixed.
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18.06 2018-12-30
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-------------------------
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- The speed for LZMA/LZMA2 compressing was increased by 3-10%,
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and there are minor changes in compression ratio.
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- Some bugs were fixed.
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18.05 2018-04-30
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-------------------------
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- The speed for LZMA/LZMA2 compressing was increased
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by 8% for fastest/fast compression levels and
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by 3% for normal/maximum compression levels.
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18.03 beta 2018-03-04
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-------------------------
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- The speed for single-thread LZMA/LZMA2 decoding
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was increased by 30% in x64 version and by 3% in x86 version.
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- 7-Zip now can use multi-threading for 7z/LZMA2 decoding,
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if there are multiple independent data chunks in LZMA2 stream.
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9.35 beta 2014-12-07
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------------------------------
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- SFX modules were moved to LZMA SDK package.
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9.34 alpha 2014-06-22
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------------------------------
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- Minimum supported system now is Windows 2000 for EXE and DLL files.
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- all EXE and DLL files use msvcrt.dll.
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- 7zr.exe now support AES encryption.
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9.18 2010-11-02
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------------------------------
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- New small SFX module for installers.
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9.17 2010-10-04
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------------------------------
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- New 7-Zip plugin for FAR Manager x64.
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9.10 2009-12-30
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------------------------------
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- 7-Zip for installers now supports LZMA2.
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9.09 2009-12-12
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------------------------------
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- LZMA2 compression method support.
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- Some bugs were fixed.
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4.65 2009-02-03
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------------------------------
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- Some bugs were fixed.
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4.38 beta 2006-04-13
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------------------------------
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- SFX for installers now supports new properties in config file:
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Progress, Directory, ExecuteFile, ExecuteParameters.
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4.34 beta 2006-02-27
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------------------------------
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- ISetProperties::SetProperties:
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it's possible to specify desirable number of CPU threads:
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PROPVARIANT: name=L"mt", vt = VT_UI4, ulVal = NumberOfThreads
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If "mt" is not defined, 7za.dll will check number of processors in system to set
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number of desirable threads.
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Now 7za.dll can use:
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2 threads for LZMA compressing
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N threads for BZip2 compressing
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4 threads for BZip2 decompressing
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Other codecs use only one thread.
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Note: 7za.dll can use additional "small" threads with low CPU load.
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- It's possible to call ISetProperties::SetProperties to specify "mt" property for decoder.
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4.33 beta 2006-02-05
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------------------------------
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- Compressing speed and Memory requirements were increased.
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Default dictionary size was increased: Fastest: 64 KB, Fast: 1 MB,
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Normal: 4 MB, Max: 16 MB, Ultra: 64 MB.
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- 7z/LZMA now can use only these match finders: HC4, BT2, BT3, BT4
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4.27 2005-09-21
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------------------------------
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- Some GUIDs/interfaces were changed.
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IStream.h:
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ISequentialInStream::Read now works as old ReadPart
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ISequentialOutStream::Write now works as old WritePart
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