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1zlib 1.1.0 is a general purpose data compression library. All the code 1zlib 1.1.1 is a general purpose data compression library. All the code
2is thread safe. The data format used by the zlib library 2is thread safe. The data format used by the zlib library
3is described by RFCs (Request for Comments) 1950 to 1952 in the files 3is described by RFCs (Request for Comments) 1950 to 1952 in the files
4ftp://ds.internic.net/rfc/rfc1950.txt (zlib format), rfc1951.txt (deflate 4ftp://ds.internic.net/rfc/rfc1950.txt (zlib format), rfc1951.txt (deflate
@@ -25,15 +25,14 @@ Mark Nelson wrote an article about zlib for the Jan. 1997 issue of
25Dr. Dobb's Journal; a copy of the article is available in 25Dr. Dobb's Journal; a copy of the article is available in
26http://web2.airmail.net/markn/articles/zlibtool/zlibtool.htm 26http://web2.airmail.net/markn/articles/zlibtool/zlibtool.htm
27 27
28The changes made in version 1.1.0 are documented in the file ChangeLog. 28The changes made in version 1.1.1 are documented in the file ChangeLog.
29The main changes since 1.0.9 are: 29The main changes since 1.1.0 are:
30 30
31- do not return STREAM_END prematurely in inflate (John Bowler) 31- fix macros _tr_tally_* in deflate.h for debug mode (Glenn Randers-Pehrson)
32- revert to the zlib 1.0.8 inflate to avoid the gcc 2.8.0 bug (Jeremy Buhler) 32- remove block truncation heuristic which had very marginal effect for zlib
33- compile with -DFASTEST to get compression code optimized for speed only 33 (smaller lit_bufsize than in gzip 1.2.4) and degraded a little the
34- in minigzip, try mmap'ing the input file first (Miguel Albrecht) 34 compression ratio on some files. This also allows inlining _tr_tally for
35- increase size of I/O buffers in minigzip.c and gzio.c (not a big gain 35 matches in deflate_slow.
36 on Sun but significant on HP)
37 36
38 37
39Unsupported third party contributions are provided in directory "contrib". 38Unsupported third party contributions are provided in directory "contrib".