diff options
Diffstat (limited to 'NEWS')
| -rw-r--r-- | NEWS | 55 |
1 files changed, 14 insertions, 41 deletions
@@ -1,49 +1,22 @@ -Changes in version 1.11: +Changes in version 1.12: -The option "-0", which produces a compression speed and ratio comparable -to those of "gzip -9", has been added to lzip. +The option "-F, --recompress", which forces recompression of files whose +name already has the ".lz" or ".tlz" suffix, has been added. -Match length limit set by options -1 to -8 has been reduced to extend -range of use towards gzip. Lower numbers now compress less but faster. -(-1 now takes 43% less time for only 20% larger compressed size). +For large values of "--match-length", compression ratio has been +slightly increased and compression time has been reduced by up to 6%. -(Note that the bidimensional parameter space of LZMA can't be mapped to -a linear scale optimal for all files. If your files are large, very -repetitive, etc, you may need to use the --match-length and ---dictionary-size options directly to achieve optimal performance). +Compression time of option "-0" has been reduced by 2%. -Compression of option -9 has been slightly increased. +Print only one status line for each multimember file when only one "-v" +is specified. -The option "--merge", which tries to produce a correct file merging the -good parts of two or more damaged copies, has been added to lziprecover. +Print up to 6 bytes of trailing garbage when "-vvvv" is specified. -(To give you an idea of --merge's possibilities, when merging two copies -each of them with one damaged area affecting 1 percent of the copy, the -probability of obtaining a correct file is about 98 percent. With three -such copies the probability rises to 99.97 percent. For large files with -small errors, the probability approaches 100 percent even with only two -copies). +Do not show the message "and `--stdout' was not specified" for file +types that can't be read (directories, etc). -The option "--repair", which repairs any 1-byte error in the lzma stream -of lzip files, has been added to lziprecover. +If "--verbose" is not specified, lziprecover now only shows errors and +warnings. -Decompressor has been modified to detect file errors earlier, improving -efficiency of lziprecover's new repair capability. - -The option "--force", which forces overwriting of existing output files, -has been added to lziprecover. - -The option "--output", which sets the name of the output file, has been -added to lziprecover. - -The option "--split", which selects the until now only operation of -splitting multimember files, has been added to lziprecover. - -Lziprecover now needs the operation to be specified. Else it warns the -user and does nothing. - -A warning about fchown's return value being ignored has been fixed. - -"lzip -tvvvv" now also shows file compression ratio. - -Some new examples have been added to the manual. +Options "--bits", "--position" and "--size" has been added to unzcrash. |