1 ChangeLog file for zlib
3 Changes in 0.91 (2 May 95)
4 - Default MEM_LEVEL is 8 (not 9 for Unix) as documented in zlib.h
5 - Document the memory requirements in zconf.h
7 - fix sync search logic in inflateSync
8 - deflate(Z_FULL_FLUSH) now works even if output buffer too short
9 - after inflateSync, don't scare people with just "lo world"
10 - added support for DJGPP
12 Changes in 0.9 (1 May 95)
13 - don't assume that zalloc clears the allocated memory (the TurboC bug
14 was Mark's bug after all :)
15 - let again gzread copy uncompressed data unchanged (was working in 0.71)
16 - deflate(Z_FULL_FLUSH), inflateReset and inflateSync are now fully implemented
17 - added a test of inflateSync in example.c
18 - moved MAX_WBITS to zconf.h because users might want to change that.
19 - document explicitly that zalloc(64K) on MSDOS must return a normalized
21 - added Makefiles for Microsoft C, Turbo C, Borland C++
24 Changes in 0.8 (29 April 95)
25 - added fast inflate (inffast.c)
26 - deflate(Z_FINISH) now returns Z_STREAM_END when done. Warning: this
27 is incompatible with previous versions of zlib which returned Z_OK.
28 - work around a TurboC compiler bug (bad code for b << 0, see infutil.h)
29 (actually that was not a compiler bug, see 0.81 above)
30 - gzread no longer reads one extra byte in certain cases
31 - In gzio destroy(), don't reference a freed structure
32 - avoid many warnings for MSDOS
33 - avoid the ERROR symbol which is used by MS Windows
35 Changes in 0.71 (14 April 95)
36 - Fixed more MSDOS compilation problems :( There is still a bug with
39 Changes in 0.7 (14 April 95)
40 - Added full inflate support.
41 - Simplified the crc32() interface. The pre- and post-conditioning
42 (one's complement) is now done inside crc32(). WARNING: this is
43 incompatible with previous versions; see zlib.h for the new usage.
45 Changes in 0.61 (12 April 95)
46 - workaround for a bug in TurboC. example and minigzip now work on MSDOS.
48 Changes in 0.6 (11 April 95)
50 - added gzdopen to reopen a file descriptor as gzFile
51 - added transparent reading of non-gziped files in gzread.
52 - fixed bug in gzread (don't read crc as data)
53 - fixed bug in destroy (gzio.c) (don't return Z_STREAM_END for gzclose).
54 - don't allocate big arrays in the stack (for MSDOS)
55 - fix some MSDOS compilation problems
58 - do real compression in deflate.c. Z_PARTIAL_FLUSH is supported but
60 - support decompression but only in a single step (forced Z_FINISH)
61 - added opaque object for zalloc and zfree.
62 - added deflateReset and inflateReset
63 - added a variable zlib_version for consistency checking.
64 - renamed the 'filter' parameter of deflateInit2 as 'strategy'.
65 Added Z_FILTERED and Z_HUFFMAN_ONLY constants.
68 - avoid "zip" everywhere, use zlib instead of ziplib.
69 - suppress Z_BLOCK_FLUSH, interpret Z_PARTIAL_FLUSH as block flush
70 if compression method == 8.
71 - added adler32 and crc32
72 - renamed deflateOptions as deflateInit2, call one or the other but not both
73 - added the method parameter for deflateInit2.
75 - simplied considerably deflateInit and inflateInit by not supporting
76 user-provided history buffer. This is supported only in deflateInit2
80 - prefix all macro names with Z_
81 - use Z_FINISH instead of deflateEnd to finish compression.
82 - added Z_HUFFMAN_ONLY