HISTORY of the 7-Zip\r
--------------------\r
\r
+20.00 alpha 2020-02-06\r
+-------------------------\r
+- 7-Zip now supports new optional match finders for LZMA/LZMA2 compression: bt5 and hc5, \r
+ that can work faster than bt4 and hc4 match finders for the data with big redundancy.\r
+- The compression ratio was improved for Fast and Fastest compression levels with the \r
+ following default settings:\r
+ - Fastest level (-mx1) : hc5 match finder with 256 KB dictionary.\r
+ - Fast level (-mx3) : hc5 match finder with 4 MB dictionary.\r
+- Minor speed optimizations in multithreaded LZMA/LZMA2 compression for Normal/Maximum/Ultra \r
+ compression levels.\r
+- bzip2 decoding code was updated to support bzip2 archives, created by lbzip2 program.\r
+- Some bugs were fixed.\r
+- New localization: Turkmen.\r
+\r
+\r
+19.02 alpha 2019-09-05\r
+-------------------------\r
+- 7-Zip now can unpack files encoded with Base64 encoding (b64 filename extension).\r
+- 7-Zip now can use new x86/x64 hardware instructions for SHA-1 and SHA-256, supported\r
+ by AMD Ryzen and latest Intel CPUs: Ice Lake and Goldmont.\r
+ It increases\r
+ - the speed of SHA-1/SHA-256 hash value calculation, \r
+ - the speed of encryption/decryption in zip AES, \r
+ - the speed of key derivation for encryption/decryption in 7z/zip/rar archives.\r
+- The speed of zip AES encryption and 7z/zip/rar AES decryption was increased with \r
+ the following improvements:\r
+ - 7-Zip now can use new x86/x64 VAES (AVX Vector AES) instructions, supported by \r
+ Intel Ice Lake CPU. \r
+ - The existing code of x86/x64 AES-NI was improved also.\r
+- There is 2% speed optimization in 7-Zip benchmark's decompression.\r
+- Some bugs were fixed.\r
+\r
+ \r
+19.00 2019-02-21\r
+-------------------------\r
+- Encryption strength for 7z archives was increased:\r
+ the size of random initialization vector was increased from 64-bit to 128-bit,\r
+ and the pseudo-random number generator was improved.\r
+- Some bugs were fixed.\r
+\r
+\r
+18.06 2018-12-30\r
+-------------------------\r
+- The speed for LZMA/LZMA2 compressing was increased by 3-10%,\r
+ and there are minor changes in compression ratio.\r
+- Some bugs were fixed.\r
+- The bug in 7-Zip 18.02-18.05 was fixed: there was memory leak in xz decoder.\r
+- 7-Zip 18.02-18.05 used only one CPU thread for bz2 archive creation.\r
+ \r
+\r
+18.05 2018-04-30\r
+-------------------------\r
+- The speed for LZMA/LZMA2 compressing was increased \r
+ by 8% for fastest/fast compression levels and \r
+ by 3% for normal/maximum compression levels.\r
+- 7-Zip now shows Properties (Info) window and CRC/SHA results window\r
+ as "list view" window instead of "message box" window.\r
+- Some improvements in zip, hfs and dmg code.\r
+- Previous versions of 7-Zip could work incorrectly in "Large memory pages" mode in\r
+ Windows 10 because of some BUG with "Large Pages" in Windows 10. \r
+ Now 7-Zip doesn't use "Large Pages" on Windows 10 up to revision 1709 (16299).\r
+- The vulnerability in RAR unpacking code was fixed (CVE-2018-10115).\r
+- Some bugs were fixed.\r
+ \r
+\r
+18.03 beta 2018-03-04\r
+-------------------------\r
+- The speed for single-thread LZMA/LZMA2 decoding\r
+ was increased by 30% in x64 version and by 3% in x86 version.\r
+- 7-Zip now can use multi-threading for 7z/LZMA2 decoding,\r
+ if there are multiple independent data chunks in LZMA2 stream.\r
+- 7-Zip now can use multi-threading for xz decoding,\r
+ if there are multiple blocks in xz stream.\r
+- New localization: Kabyle.\r
+- Some bugs were fixed.\r
+\r
+\r
+18.01 2018-01-28\r
+-------------------------\r
+- 7-Zip now can unpack DMG archives that use LZFSE compression method.\r
+- 7-Zip now doesn't allow update operation for archives that have read-only attribute.\r
+- The BUG was fixed:\r
+ extracting from tar with -si switch didn't set timestamps for directories.\r
+- Some bugs were fixed.\r
+\r
+\r
+18.00 beta 2018-01-10\r
+-------------------------\r
+- 7-Zip now can unpack OBJ/COFF files.\r
+- new -sse switch to stop archive creating, if 7-Zip can't open some input file. \r
+- Some bugs were fixed.\r
+\r
+\r
+17.01 beta 2017-08-28\r
+-------------------------\r
+- Minor speed optimization for LZMA2 (xz and 7z) multi-threading compression.\r
+ 7-Zip now uses additional memory buffers for multi-block LZMA2 compression.\r
+ CPU utilization was slightly improved.\r
+- 7-zip now creates multi-block xz archives by default. Block size can be \r
+ specified with -ms[Size]{m|g} switch.\r
+- xz decoder now can unpack random block from multi-block xz archives.\r
+ 7-Zip File Manager now can open nested multi-block xz archives \r
+ (for example, image.iso.xz) without full unpacking of xz archive.\r
+- 7-Zip now can create zip archives from stdin to stdout.\r
+- 7-Zip command line: @listfile now doesn't work after -- switch.\r
+ Use -i@listfile before -- switch instead.\r
+- The BUGs were fixed:\r
+ 7-Zip could add unrequired alternate file streams to WIM archives, \r
+ for commands that contain filename wildcards and -sns switch.\r
+ 7-Zip 17.00 beta crashed for commands that write anti-item to 7z archive.\r
+ 7-Zip 17.00 beta ignored "Use large memory pages" option.\r
+\r
+\r
+17.00 beta 2017-04-29\r
+-------------------------\r
+- ZIP unpacking code was improved.\r
+- 7-Zip now reserves file space before writing to file (for extraction from archive).\r
+ It can reduce file fragmentation.\r
+- Some bugs were fixed. 7-Zip could crash in some cases.\r
+- Internal changes in code.\r
+\r
+\r
+16.04 2016-10-04\r
+-------------------------\r
+- The bug was fixed: 7-Zip 16.03 exe installer under Vista didn't create \r
+ links in Start / Programs menu.\r
+- Some bugs were fixed in RAR code.\r
+\r
+\r
+16.03 2016-09-28\r
+-------------------------\r
+- Installer and SFX modules now use some protection against DLL preloading attack.\r
+- Some bugs were fixed in 7z, NSIS, SquashFS, RAR5 and another code.\r
+\r
+\r
+16.02 2016-05-21\r
+-------------------------\r
+- 7-Zip now can extract multivolume ZIP archives (z01, z02, ... , zip).\r
+- Some bugs were fixed.\r
+\r
+\r
+15.14 2015-12-31\r
+-------------------------\r
+- 7-Zip File Manager:\r
+ - The code for "Open file from archive" operation was improved.\r
+ - The code for "Tools/Options" window was improved.\r
+ - The BUG was fixed: there was incorrect mouse cursor capture for \r
+ drag-and-drop operations from open archive to Explorer window.\r
+- Some bugs were fixed.\r
+- New localization: Yoruba.\r
+\r
+\r
+15.12 2015-11-19\r
+-------------------------\r
+- The release version.\r
+\r
+\r
+15.11 beta 2015-11-14\r
+-------------------------\r
+- Some bugs were fixed.\r
+\r
+\r
+15.10 beta 2015-11-01\r
+-------------------------\r
+- The BUG in 9.21 - 15.09 was fixed:\r
+ 7-Zip could ignore some parameters, specified for archive creation operation\r
+ for gzip and bzip2 formats in "Add to Archive" window and in command line \r
+ version (-m switch).\r
+- Some bugs were fixed.\r
+\r
+\r
+15.09 beta 2015-10-16\r
+-------------------------\r
+- 7-Zip now can extract ext2 and multivolume VMDK images.\r
+- Some bugs were fixed.\r
+\r
+\r
+15.08 beta 2015-10-01\r
+-------------------------\r
+- 7-Zip now can extract ext3 and ext4 (Linux file system) images.\r
+- Some bugs were fixed.\r
+\r
+\r
+15.07 beta 2015-09-17\r
+-------------------------\r
+- 7-Zip now can extract GPT images and single file QCOW2, VMDK, VDI images.\r
+- 7-Zip now can extract solid WIM archives with LZMS compression.\r
+- Some bugs were fixed.\r
+\r
+\r
+15.06 beta 2015-08-09\r
+-------------------------\r
+- 7-Zip now can extract RAR5 archives.\r
+- 7-Zip now doesn't sort files by type while adding to solid 7z archive.\r
+- new -mqs switch to sort files by type while adding to solid 7z archive.\r
+- The BUG in 7-Zip File Manager was fixed:\r
+ The "Move" operation to open 7z archive didn't delete empty files.\r
+- The BUG in 15.05 was fixed:\r
+ console version added some text to the end of stdout stream, is -so switch was used. \r
+- The BUG in 9.30 - 15.05 was fixed:\r
+ 7-Zip could not open multivolume sfx RAR archive.\r
+- Some bugs were fixed.\r
+\r
+\r
+15.05 beta 2015-06-14\r
+-------------------------\r
+- 7-Zip now uses new installer.\r
+- 7-Zip now can create 7z, xz and zip archives with 1536 MB dictionary for LZMA/LZMA2.\r
+- 7-Zip File Manager now can operate with alternate file streams at NTFS\r
+ volumes via "File / Alternate Streams" menu command.\r
+- 7-Zip now can extract .zipx (WinZip) archives that use xz compression.\r
+- new optional "section size" parameter for BCJ2 filter for compression ratio improving.\r
+ Example: -mf=BCJ2:d9M, if largest executable section in files is smaller than 9 MB. \r
+- Speed optimizations for BCJ2 filter and SHA-1 and SHA-256 calculation.\r
+- Console version now uses stderr stream for error messages.\r
+- Console version now shows names of processed files only in progress line by default.\r
+- new -bb[0-3] switch to set output log level. -bb1 shows names of processed files in log. \r
+- new -bs[o|e|p][0|1|2] switch to set stream for output messages;\r
+ o: output, e: error, p: progress line; 0: disable, 1: stdout, 2: stderr.\r
+- new -bt switch to show execution time statistics.\r
+- new -myx[0-9] switch to set level of file analysis.\r
+- new -mmtf- switch to set single thread mode for filters.\r
+- The BUG was fixed:\r
+ 7-Zip didn't restore NTFS permissions for folders during extracting from WIM archives.\r
+- The BUG was fixed:\r
+ The command line version: if the command "rn" (Rename) was called with more \r
+ than one pair of paths, 7-Zip used only first rename pair.\r
+- The BUG was fixed:\r
+ 7-Zip crashed for ZIP/LZMA/AES/AES-NI.\r
+- The BUG in 15.01-15.02 was fixed:\r
+ 7-Zip created incorrect ZIP archives, if ZipCrypto encryption was used.\r
+ 7-Zip 9.20 can extract such incorrect ZIP archives.\r
+- Some bugs were fixed.\r
+ \r
+\r
+9.38 beta 2015-01-03\r
+-------------------------\r
+- Some bugs were fixed.\r
+\r
+\r
+9.36 beta 2014-12-26\r
+-------------------------\r
+- The BUG in command line version was fixed:\r
+ 7-Zip created temporary archive in current folder during update archive\r
+ operation, if -w{Path} switch was not specified. \r
+ The fixed 7-Zip creates temporary archive in folder that contains updated archive.\r
+- The BUG in 9.33-9.35 was fixed:\r
+ 7-Zip silently ignored file reading errors during 7z or gz archive creation,\r
+ and the created archive contained only part of file that was read before error.\r
+ The fixed 7-Zip stops archive creation and it reports about error.\r
+- Some bugs were fixed.\r
+\r
+\r
9.35 beta 2014-12-07\r
-------------------------\r
- The BUG was fixed:\r
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