6 * IO::Compress::Zip & IO::Uncompress::Unzip
7 - Added support for LZMA (method 14) compression/uncompresion.
10 - Fixed CRC issue when compression is Store or Bzip2 and Strict option
14 - Fixed Zip64 issue where the content size is exactly 0xFFFFFFFF
18 * RT #67931: Test failure on Windows
23 - Silence pod warnings.
26 - Removed duplicate words in pod.
30 - RT #56942: Testsuite fails when being run in parallel
32 - Reduce symbol import - patch from J. Nick Koston
34 - If the output buffer parameter passed to read has a value of
35 undef, and Append mode was specified when the file was opened,
36 and eof is reached, then the buffer paramer was left as undef.
37 This is different from when Append isn't specified - the buffer
38 parameter is set to an empty string.
40 - There area couple of issues with reading a file that contains an
41 empty file that is compressed.
42 Create with -- touch /tmp/empty; gzip /tmp/empty.
43 Issue 1 - eof is not true immediately. Have to read from the file
45 Issue 2 - readline incorrectly returns an empty string the first
46 time it is called, and (correctly) undef thereafter.
51 * Fixed typos & spelling errors.
56 * IO::Uncompress::Base
57 - An input file that had a valid header, and so would allow
58 creation of the uncompression object, but was then followed by
59 corrupt data would trigger an infinite loop when using the
64 - XFL default settings for max compression & fastest algorithm were
65 the wrong way around. Thanks to Andrey Zholos for spotting this.
67 * IO::Compress::Base::Common
68 - Fixed precedence problem in parameter parsing code.
73 - Updates to documentation.
74 - Changes default value for ExtAttr on Unix to 0100644
76 * IO::Uncompress::Unzip
77 Reworked the "Name" option and examples in the pod.
79 * IO::Uncompress::Base
80 Fixed problem with nextStream not returning 0 when there is no
81 next stream and Transparent is false.
86 Remove autoload code from Zlib.pm.
92 - Some updates to IO::Compress::Zip documentation.
93 - Fixed default setting for ExtAttr.
98 * IO::Uncompress::Unzip
99 The "Name" option wasn't documented.
101 * Allow zlib version check to be disabled by setting
102 TEST_SKIP_VERSION_CHECK environment variable.
108 Get memGunzip & memGzip to set $gzerrno
112 Export memGunzip, memGzip and zlib_version on demand
116 This sample was using IO::Uncompress::AnyInflate. Much better to
117 use IO::Uncompress::AnyUncompress.
119 2.023 9 November 2009
121 * IO::Compress::AnyUncompress
122 Added support for lzma_alone & xz.
126 * IO::Compress - Makefile.PL
131 * IO::Compress::Base.pm
132 - Less warnnings when reading from a closed filehandle.
134 - Fixed minor typo in an error message.
138 The PREREQ_PM dependency on Scalar::Util got dropped when
139 IO-Compress was created in 2.017.
142 * IO::Compress::Zip.pm
143 - Removed restriction that zip64 is only supported in streaming
145 - The "version made by" and "extract" fields in the zip64 end
146 central record were swapped.
147 - In the End Central Header record the "offset to the start of the
148 central directory" will now always be set to 0xFFFFFFFF when
150 - In the End Central Header record the "total entries in the
151 central directory" field will be set to 0xFFFF if zip64 is
152 enabled AND there are more than 0xFFFF entries present.
154 * IO::Uncompress::Unzip.pm
155 - Don't consume lots of memory when walking a zip file. This makes
156 life more bearable when dealing with zip64.
159 - documented that memGunzip cannot cope with concatenated gzip data
162 * Changed test harness so that it can cope with PERL5OPT=-MCarp=verbose
165 * IO::Compress::Gzip::Constants.pm
166 - GZIP_FEXTRA_MAX_SIZE was set to 0xFF. Should be 0xFFFF. This
167 issue came up when attempting to unzip a file created by MS
172 * IO::Uncompress::Base.pm
173 - Fixed problem with LimitOutput where a call to uncompress
174 created more uncompressed output, but didn't consume any of
175 the input buffer. The symptom is the underlying compression
176 library (zlib or bzip2) thinks the input stream is corrupt.
181 * IO::Uncompress::Adapter::Bunzip2
182 - Fixed problem with EOF check.
186 * IO::Uncompress::Bunzip2
187 - The interface to Compress-Raw-Bzip2 now uses the new LimitOutput
188 feature. This will make all of the bzip2-related IO-Compress modules
189 less greedy in their memory consumption.
192 - Fixed exTime & exUnix2
194 - Fixed 'Use of uninitialized value in pack' warning when using
199 * Merged IO-Compress-Base, IO-Compress-Bzip2, IO-Compress-Zlib &
200 Compress-Zlib into IO-Compress.
202 * The interface to Compress-Raw-Zlib now uses the new LimitOutput
203 feature. This will make all of the zlib-related IO-Compress modules
204 less greedy in their memory consumption.
206 * Removed MAN3PODS from Makefile.PL
208 * A few changes to get the test harness to work on VMS courtesy of
211 * IO::Compress::Base & IO::Uncompress::Base
212 Downgraded some croaks in the constructors to just set $! (by letting
213 the code attempt to open a file and fail).
214 This makes the behavior more consistent to a standard open.
217 * IO::Uncompress::Base
218 Doing a seek with MultiStream could drop some of the uncompressed
222 - Fixed problem with the uncompressed & uncompressed fields when
223 zip64 is enabled. They were set to 0x0000FFFF instead of
224 0xFFFFFFFF. Also the ZIP64 extra field was 4 bytes short.
225 Problem spotted by Dino Chiesa.
227 * IO::Uncompress::Unzip
228 - use POSIX::mktime instead of Time::Local::timelocal to convert
229 the zip DOS time field into Unix time.
232 - Documented Compress::Zlib::zlib_version()
235 2.015 3 September 2008
238 Backout changes made in 2.014
240 2.014 2 September 2008
243 Updated to check for indirect dependencies.
248 - Allow IO::Compress::Base::Parameters::parse to accept an
249 IO::Compress::Base::Parameters object.
254 - Silenced an uninitialised value warning when reading a line
255 at a time from a zip file where the content uses ZIP_CM_STORE.
256 [Problem spotted & fixed by Jeff Holt]
258 * IO::Compress::Base & IO::Uncompress::Base
259 - local-ise $!, $? et al in the DESTROY methods.
264 - Fixed problem that prevented the creation of a zip file that
265 contained more than one compression method.
267 * IO::Compress::Base::Common
268 - The private Validator class in this module clashes with another
269 CPAN module. Moved Validator into the IO::Compress::Base::Common
273 * IO::Uncompress::Unzip
274 - Print an error message if the zip file contains a
275 member compressed with bzip2 and IO::Uncompress::Bunzip2 is
277 - Could not cope with mixed compression zip files. For example a
278 zip file that contains both STORED and DEFLATED content.
283 * Fixed problem that meant Perl 5.10 could not upgrade this module.
288 * Removed the alpha status from File::GlobMapper
291 When writing output never output a zero length buffer.
292 Done to improve interoperability with other tied filenandle
295 * Changed IO::Uncompress::Base to not use the offset parameter of
296 the read method when reading from a filehandle.
298 The object returned from Net::FTP::retr implements a non-standard
299 read method. The third parameter is used for a timeout value
300 rather than an offset.
303 * Changed IO::Uncompress::Base to not use the eof method when
304 reading from a filehandle.
306 The object returned from Net::FTP::retr implements both the read
307 method and the eof method. Unfortunately the implementation of
308 the read method uses non-buffered IO (by using sysread) while
309 the eof method uses buffered IO. Mixing buffered and non-buffered
310 IO results in data corruption.
314 - Added exUnix2 option to allow storing of UID & GID.
315 - When running on a Unix derivative the ExtAttr option now defaults
316 to the equivalent of 0666. For all other systems the default
320 - Minor documentation issue with flush.
324 2.008 2 November 2007
326 * Minor documentation changes in README
328 * t/compress/truncate.pl
331 * IO::Compress::Gzip::Constants.pm
332 Tidied up the character classes used to defined invalid
333 FNAME & FCOMMENT fields for EBCDIC.
336 lib/Compress/Zlib.pm -- 1.x Backward Compatibility issues
337 gzclose - documented return value was wrong, should be 0 for ok.
338 gzflush - return value didn't match 1.x, should return 0 if ok.
339 [rt.cpan.org #29215] and Debian bug #440943 http://bugs.debian.org/440943
341 2.006 1 September 20007
344 Added INSTALLDIRS directive to install as a core module when built
347 * IO::Uncompress::RawDeflate
349 - Fixed export problem - "$RawDeflateError" and "rawdeflate" were
350 not being exported with ":all".
354 Fixed crc32 and adler32 tests in to remove ascii assumption.
356 - lib/Compress/Zlib.pm
357 Make gzreadline not support $/, just like in Compress::Zlib 1.x
358 Folk who want $/ with readline support can get it in
359 IO::Uncompress::Gunzip. [rt.cpan.org #28663] and
360 Debian bug #435656 http://bugs.debian.org/435656
365 * Stephen Turner reported a problem when using IO::Uncompress::Gunzip
366 with XML::Parser. Turns out there were two issues.
368 Firstly an IO::Uncompress object isn't an IO::Handle. It is now.
370 Secondly the implementation of "read" wasn't honouring this
372 SCALAR will be grown or shrunk to the length actually read.
374 In particular it didn't do the right thing on EOF.
377 * IO::Compress::Gzip & IO::Uncompress::Gunzip
379 - RFC1952 says that the FNAME & FCOMMENT header fields must be ISO
380 8859-1 (LATIN-1) characters. The code can optionally police this.
381 Added a fix for this logic when running on EBCDIC.
384 Added info about removing Compress::Zlib version 1, before
385 installing version 2.
389 * Made seek less wasteful of memory.
393 - Added Zip64 documentation.
395 - Fixed extended timestamp.
396 Creation time isn't available in Unix so only store the
397 modification time and the last access time in the extended field.
401 - Added ExtAttr option to control the value of the "external file
402 attributes" field in the central directory.
404 - Added Unix2 extended attribute ("Ux").
405 This stores the UID & GID.
409 - Fixed 050interop-gzip.t for Windows
411 * IO::Compress::Bzip2
413 - Fixed 050interop-bzip2.t for Windows
417 - rewrote memGzip using IO::Compress::Gzip::gzip
421 * Added explicit version checking
423 2.002 29 December 2006
425 * Documentation updates.
427 * Added IO::Handle to the ISA test in isaFilehandle
429 * Add an explicit use_ok test for Scalar::Util in the test harness.
430 The error message reported by 01misc implied the problem was
432 Also explicitly check that 'dualvar' is available.
435 - Fix append mode with gzopen.
438 - Allow gzopen to read from and write to a scalar reference.
440 2.001 1 November 2006
442 * Remove beta status.
444 2.000_14 26 October 2006
446 * IO::Uncompress::Base
447 Added support for $/ in record mode
449 * IO::Uncompress::Base
450 The readline interface was substantially slower than the 1.x
451 equivalent. This has now been sorted.
452 Thanks to Andreas J. Koenig for spotting the problem.
454 * IO::Uncompress::AnyUncompress
455 Added IO::Uncompress::Lzf to the list of supported uncompressors.
457 * IO::Uncompress::Base
458 Added TrailingData to one-shot interface.
460 * IO::Uncompress::AnyUncompress
461 Remove raw-deflate (RFC1951) from the default list of compressors
463 It can still be included if the new RawInflate parameter is
465 This change was made because the only way to tell if content is
466 raw-deflate is to attempt to uncompress it - a few false positives
467 have popped up recently, which suggests that auto-detecting raw
468 deflate is far from perfect.
469 The equivalent change has been made to IO::Uncompress::AnyInflate.
472 * Don't check that filehandles are writable. It would seem that
473 "-w *STDOUT" on windows returns false.
476 * IO::Uncompress::Deflate
477 Beefed up the magic signature check. Means less false positives
478 when auto-detecting the compression type.
480 * IO::Uncompress::UnZip
481 Tighten up the zip64 extra field processing to cope with the case
482 wheere only some of the local header fields are superseded.
484 * IO::Uncompress::AnyInflate
485 Remove raw-deflate (RFC 1951) from the default list of compressors
487 It can still be included if the new RawInflate parameter is
489 This change was made because the only way to tell if content is
490 raw-deflate is to attempt to uncompress it - a few false positives
491 have popped up recently, which suggests that auto-detecting raw
492 deflate is far from perfect.
493 The equivalent change has been made to IO::Uncompress::AnyUncompress.
496 2.000_13 20 June 2006
498 * Store compress & uncompressed sizes as 64-bit.
500 * For one-shot uncompression, like this
502 unzip "some.zip" => \@a, MultiStream => 1;
504 Push each uncompressed stream from "some.zip" onto @a.
506 * Added IO::Compress::Base::FilterEnvelope
508 * Added IO::Uncompress::Base::nextStream
510 * The '-' filehandle now maps to either *STDIN or *STDOUT.
511 This keeps mod_perl happier. Was using these before
516 * Preliminary support for reading zip files with zip64 members.
520 * Moved the code for creating and parsing the gzip extra field into
521 IO::Compress::Zlib::Extra.pm so that IO::Compress::Zip &
522 IO::Uncompress::Unzip can use it as well.
524 * Added ExtraFieldLocal & ExtraFieldCentral options to IO::Compress::Zip.
525 These allow the creation of user-defined extra fields in the local
526 and central headers, just like the ExtraField option in
529 * Moved the zip constants into IO::Compress::Zip::Constants
531 * Added exTime option to IO::Compress::Zip.
532 This allows creation of the extended timestamp extra field.
534 * Added Minimal option to IO::Compress::Zip.
535 This disables the creation of all extended fields.
537 * Added TextFlag option to IO::Compress::Zip.
539 * Documented Comment and ZipComment options in IO::Compress::Zip.
542 Fixed gzread to zap the output buffer to an empty string when zero
543 bytes are requested. This matches the behaviour of C::Z 1.x
545 2.000_11 10 April 2006
547 * Transparent + InputLength made more robust where input data is not
550 * Updated Documentation for zip modules.
552 * Changed IO::Compress::Zip 'Store' option to 'Method' and added
553 symbolic constants ZIP_CM_STORE, ZIP_CM_DEFLATE and ZIP_CM_BZIP2 to
554 allow the compression method to be picked by the user.
556 * Added support to allow bzip2 compressed data to be written/read
557 with IO::Compress::Zip and IO::Uncompress::Unzip.
559 * Beefed up 050interop-gzip.t to check that the external gzip command
560 works as expected before starting the tests. This means that
561 this test harness will just be skipped on problematic systems.
563 * Merged core patch 27565 from Steve Peters. This works around a
564 problem with gzip on OpenBSD where it doesn't seem to like
565 compressing files < 10 bytes long.
567 * Beefed up 050interop-bzip2.t to check that the external bzip2 command
568 works as expected before starting the tests. This means that
569 this test harness will just be skipped on problematic systems.
571 2.000_10 13 March 2006
573 * AnyUncompress doesn't assume that IO-Compress-Zlib is installed any
576 * Documentation updates.
579 Changed gzread so that its behaviour matches C::Z::gzread 1.x if it
580 is called after eof. In this case it will write an empty string
581 into the output parameter. This change is solely for backward
582 compatibility reasons.
584 2.000_09 3 March 2006
588 2.000_08 2 March 2006
590 * Split IO::Compress::Base into its own distribution.
592 * Split IO::Compress::Bzip2 into its own distribution.
594 * Added opened, autoflush and input_line_number.
596 * Beefed up support for $.
598 * Split IO::Compress::Zlib into its own distribution.
600 * Beefed up support for zip/unzip
602 * Breakout zlib specific code into separate modules.
604 * Limited support for reading/writing zip files
606 2.000_06 5 October 2005
608 * Added eof parameter to Compress::Zlib::inflate method.
610 * Fixed issue with 64-bit
612 2.000_05 4 October 2005
614 * Renamed IO::* to IO::Compress::* & IO::Uncompress::*
616 2.000_04 23 September 2005
618 * Fixed some more non-portable test that were failing on VMS.
620 * fixed problem where error messages in the oneshot interface were
623 2.000_03 12 September 2005
625 * Fixed some non-portable test that were failing on VMS.
627 * Fixed export of zlib constants from the IO::* classes
629 2.000_02 6 September 2005
631 * Split Append mode into Append and Merge
633 * Fixed typos in the documentation.
637 * Added libscan to Makefile.PL
639 * Added InputLength for IO::Gunzip et al
641 2.000_01 22 August 2005
643 * Fixed VERSION in Compress::Gzip::Constants
645 * Removed Compress::Gzip::Info from the distribution.
647 2.000_00 21 August 2005
649 * First Beta relase of Compress::zlib rewrite.
651 Compress-Zlib version 1 Changes
653 1.38 - 6 September 2005
655 * Integrate core change 25304 -- Symbian Update
657 * Added libscan to Makefile.PL
659 1.37 - 12 August 2005
661 * Change to t/03examples.t for VMS from Abe Timmerman
665 * Renamed zlib-src-1.2.3 to zlib-src to help VMS
667 * Fixed Makefile.PL for VMS
669 * Fixed t/03examples.t for VMS
671 * Added a couple of notes about incompatibility with Unix compress.
675 * Updated zlib source to 1.2.3
677 * Fixed problem with where two calls to gzclose would hang the debugger.
678 See https://rt.cpan.org/Ticket/Display.html?id=13789
680 * Added code from Alexey Tourbin to use XSLoader when available,
681 and DynaLoader otherwise.
683 * Documented that the compress & uncompress functions were not
684 the same as the Unix utilities of the same name.
686 * Fixed 05gzsetp -- it left a temp file hanging around.
688 * Integrate core change 24787 - SvUPGRADE returns void in blead
690 * Integrate core change 24788 - Makefile.PL adjustments for the core
693 1.34 - 30 January 2005
695 * Fixed typo in the README
697 * Fixed examples.t on Win32 where paths have embedded whitespace.
699 * Fix for Cygwin and core integration from Jos I. Boumans
701 * Upgrade zlib source to 1.2.2
703 1.33 - 14 January 2004
705 * Reworked Makefile.PL to avoid creating a private copy of zlib.
706 This both simplifies the build, plus it makes life easier for VMS.
708 * Patches for Makefile.PL to get it to work on VMS supplied by
711 * memGunzip has very slow on FreeBSD. Turns out to be down to
712 the way realloc works on FreeBSD. Changed both inflate & deflate
713 to use exponentially increasing buffer sizes when they need to
714 realloc. Thanks to Peter Jeremy for the lowdown on FreeBSD
717 1.32 - 26 November 2003
719 * Steve Hay reported a problem on rt.cpan.org with Windows and
720 MSCV++ 6.0 where the source from the zlib directory was getting
721 installed with the rest of the module.
722 https://rt.cpan.org/Ticket/Display.html?id=1741
724 This has been fixed by renaming the "zlib" directory to "zlib-src"
725 thus avoiding a conflict with the name of this Perl module.
727 * Fixed a bug in the inflate method where the input buffer is an
728 lvalue (via substr). Problem & solution reported by Salvador Fandiqo.
730 * Tightened up the logic in Makefile.PL when BUILD_ZLIB is
731 True. Issue spotted by Ralf S. Engelschall.
733 1.31 - 29 October 2003
735 * Reinstated the creation of .bak files - $^I seems to need a
736 backup file on Windows. For OpenVMS, the extension _bak is used.
738 1.30 - 28 October 2003
740 * Bundled a sub-set of the zlib source with the module and changed
741 the default make behaviour to build with the included zlib source.
742 The previous behaviour of using a pre-built zlib library is
743 still available for those that want it.
745 * Added prototypes to the subs in Zlib.pm that didn't already have
746 them. Patch from Ed Avis.
748 * No .bak files are created by Makefile.PL any more - this keep
749 distclean much happier. Patch suggested by Ed Avis.
750 This also fixes a similar problem reported by Dr. Martin Zinser
753 * Documentation for some of the gz functions updated.
755 * Format strings modified in DispStream to keep OpenVMS happy.
756 Problem reported by Dr. Martin Zinser.
761 * Makefile.PL now displays a warning about not installing
762 Compress::Zlib via the CPAN shell.
764 * Fix to allow intermingling of gzread & gzreadline - patch
765 supplied by Doug Perham.
767 * memGunzip will silently now work if the gzip trailer is
768 missing. Some HTTP Origin Servers seem to leave it out.
772 * Tests 148 & 150 from t/02zlib.t were failing on redhat 9.
774 * Added a few words about the problems with Mac OS X to the README file.
778 * Fixed bug in gzopen where $gzerrno wasn't being set correctly.
779 The symptom was $gzerrno was set to Z_MEM_ERROR although the file
780 was opened ok. If gzopen failed, $gzerrno was being set correctly.
781 This problem wasn't spotted before because the typical test
782 to determine whether gzopen passed or failed was to check its
785 1.19 - 31 October 2002
787 * fixed a problem with t/02zlib.t that was failing with redhat 8.
789 1.18 - 24 October 2002
791 * fixed a Win32 problem in t/02zlib.t by changing sysread to read.
793 * zlib 1.0.5 & older doesn't have gzsetparams & gzeof. Added a new
794 variable to config.in to flag an old version of zlib. Split
795 out the tests for gzsetparams into t/05gzsetp.t
799 * Moved the test to check the versions of libz & zlib.h into a separate
800 file and added troubleshooting notes to README.
802 * In gzopen, only attempt to call "tell" for normal files.
804 * Fixed to work in taint mode.
806 * Broke changes out of README into Changes file.
808 * Replaced internal use of Z_PARTIAL_FLUSH symbol with Z_SYNC_FLUSH.
809 zlib.h says /* will be removed, use Z_SYNC_FLUSH instead */
811 1.16 - 13 December 2001
813 * Fixed bug in Makefile.PL that stopped "perl Makefile.PL PREFIX=..."
816 1.15 - 4th December 2001
818 * Changes a few types to get the module to build on 64-bit Solaris
820 * Changed the up/downgrade logic to default to the older constructs, and
821 to only call a downgrade if specifically requested. Some older versions
822 of Perl were having problems with the in-place edit.
824 * added the new XS constant code.
826 1.14 - 27th August 2001
828 * Memory overwrite bug fixed in "inflate". Kudos to Rob Simons for
829 reporting the bug and to Anton Berezin for fixing it for me.
831 1.13 - 31st June 2001
833 * Make sure config.in is consistent when released.
835 1.12 - 28th April 2001
837 * Modified Makefile.PL to only enable the warnings pragma if
838 using perl 5.6.1 or better.
840 1.11 - 17th February 2001
842 * Added logic in Makefile.PL to toggle between using $^W and
843 the warnings pragma in the module.
845 * The module, the examples & the test harness are now all strict
848 1.10 - 5th February 2001
850 * fixed a bug in memGunzip. Used Z_ERR instead of Z_DATA_ERROR.
852 1.09 - 15th January 2001
854 * Silenced a few compiler warnings.
856 * Updated zlib home site in README & Zlib.pm to www.info-zip.org
858 * Minor typo in Zlib.pm - a link used AUTHORS instead of AUTHOR
859 -- spotted by Frank Martini.
861 * Mention Archive::Zip
863 * added memGunzip. This is largely based on code provided by Jim Leonard.
865 * $deflate->flush can now take an optional parameter. Valid
866 values are Z_NO_FLUSH, Z_PARTIAL_FLUSH, Z_SYNC_FLUSH, Z_FULL_FLUSH
867 and Z_FINISH. The default is Z_FINISH.
871 * uncompress was clobbering its input parameter. Now it doesn't.
872 This bug was spotted by Deven T. Corzine.
874 * If a variable that only ever contained a number was given
875 to compress or deflate, it would not be compressed properly. Now
876 it will be coerced to a string and then compressed. This bug
877 was spotted by Deven T. Corzine.
881 * ANSI-ified the static functions in Zlib.xs
883 * Added the ability to build zlib along with the module.
884 This feature is 90% based on a Makefile provided by Gurusamy
889 * Fixed a nasty problem where inflate could truncate the data
890 returned. Thanks to Douglas Thomson <dougt@mugc.cc.monash.edu.au>
891 for both spotting the problem and fixing the bug.
893 * Added a note about the undocumented features in zlib that are
894 required when accessing zip files.
896 * gzclose will now get called automatically when the gzip object is
901 * Previous release used newSVpvn, which doesn't exist in 5.004_04
902 or earlier. Changed to use newSVpv instead.
904 * The module needs Perl 5.004 or better, so updated the version
905 checking in Zlib.pm and Makefile.PL
909 * Bug 19990527.001: compress(undef) core dumps -- Fixed.
913 * Updated to use the new PL_ symbols.
914 Means the module can be built with Perl 5.005_5*
918 * The return codes for gzread, gzreadline and gzwrite were
919 documented incorrectly as returning a status code.
921 * The test harness was missing a "gzclose". This caused problem
922 showed up on an amiga. Thanks to Erik van Roode for reporting
925 * Patched zlib.t for OS/2. Thanks to Ilya Zakharevich for the patch.
929 * A number of fixes to the test suite and the example scripts to
930 allow them to work under win32. All courtesy of Gurusamy
935 * Fixed crc32 & adler32. They were very broken.
937 * The following functions can now take a scalar reference in
938 place of a scalar for their buffer parameters:
947 This should mean applications that make use of the module don't
948 have to copy large buffers around.
951 * Normally the inflate method consumes I<all> of the input buffer
952 before returning. The exception to this is when inflate detects
953 the end of the stream (Z_STREAM_END). In this case the input
954 buffer need not be completely consumed. To allow processing of
955 file formats that embed a deflation stream (e.g. zip, gzip),
956 the inflate method now sets the buffer parameter to be what
957 remains after inflation.
959 When the return status is Z_STREAM_END, it will be what remains
960 of the buffer (if any) after deflation. When the status is Z_OK
961 it will be an empty string.
963 This change means that the buffer parameter must be a lvalue.
965 * Fixed crc32 and adler32. They were both very broken.
967 * Added the Compress::Zlib::memGzip function.
969 0.5 - Confirmed that no changes were necessary for zlib 1.0.3, or 1.0.4.
971 The optional parameters for deflateInit and inflateInit can now
972 be specified as an associative array in addition to a reference
973 to an associative array. They can also accept the -Name
976 gzopen can now optionally take a reference to an open
977 filehandle in place of a filename. In this case it will call
980 Added gzstream example script.
982 0.4 - Upgrade to support zlib 0.99
984 Added dictionary interface.
986 Fixed bug in gzreadline - previously it would keep returning
987 the same buffer. This bug was reported by Helmut Jarausch
989 Removed dependency to zutil.h and so dropped support for
991 DEF_MEM_LEVEL (use MAX_MEM_LEVEL instead)
992 DEF_WBITS (use MAX_WBITS instead)
994 0.3 - Added prototype specification.
996 0.2 - Fixed a minor allocation problem in Zlib.xs
998 0.1 - first alpha release. 2nd October 1995