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XZ for Java release notes
=========================
1.9 (2021-03-12)
* Add LZMAInputStream.enableRelaxedEndCondition(). It allows
decompression of LZMA streams whose uncompressed size is known
but it is unknown if the end of stream marker is present. This
method is meant to be useful in Apache Commons Compress to
support .7z files created by certain very old 7-Zip versions.
Such files have the end of stream marker in the LZMA data even
though the uncompressed size is known. 7-Zip supports such files
and thus other implementations of the .7z format should support
them too.
* Make LZMA/LZMA2 decompression faster. With files that compress
extremely well the performance can be a lot better but with
more typical files the improvement is minor.
* Make the CRC64 code faster.
* Add module-info.java as multi-release JAR. The attribute
Automatic-Module-Name was removed.
* The binaries for XZ for Java 1.9 in the Maven Central now
require Java 7. Building the package requires at least Java 9
for module-info support but otherwise the code should still be
Java 5 compatible (see README and comments in build.properties).
1.8 (2018-01-04)
* Fix a binary compatibility regression: XZ for Java 1.7 binaries
in the Maven Central require Java 9 which is too new. XZ for
Java 1.8 binaries require Java 5. (XZ for Java 1.6 and older
binaries require Java 1.4.)
If you are using OpenJDK 9 or later, you will need to edit the
"sourcever = 1.5" line in the file "build.properties" before
running "ant". Set it to 1.6 or higher. The default value 1.5
isn't supported by OpenJDK 9 or later.
* Add "Automatic-Module-Name" = "org.tukaani.xz".
1.7 (2017-12-29)
* Fix LZMA2InputStream.available() which could return a too high
value in case of uncompressed LZMA2 chunks. This incorrect
value was visible via other available() methods too, for example,
XZInputStream.available().
* Add the ArrayCache API. It's a pool-like API to reuse large byte
and int arrays between compressor and decompressor instances.
If you are (de)compressing many tiny files in a row, taking
advantage of this API can improve performance significantly.
1.6 (2016-11-27)
* Fix LZMA2Options.getInputStream to work with a preset dictionary.
* Make it possible to disable verification of integrity checks in
XZ decompression. It should almost never be used but may be useful
in some rare situations. This feature is available via new
constructors in XZInputStream, SingleXZInputStream, and
SeekableXZInputStream.
* Add LZMAOutputStream for encoding to raw LZMA (i.e. LZMA1) streams
and to the legacy .lzma format.
1.5 (2014-03-08)
* Fix a wrong assertion in BCJ decoders.
* Use a field instead of reallocating a temporary one-byte buffer
in read() and write() implementations in several classes.
1.4 (2013-09-22)
* Add LZMAInputStream for decoding .lzma files and raw LZMA streams.
1.3 (2013-05-12)
* Fix a data corruption bug when flushing the LZMA2 encoder or
when using a preset dictionary.
* Make information about the XZ Block positions and sizes available
in SeekableXZInputStream by adding the following public functions:
- int getStreamCount()
- int getBlockCount()
- long getBlockPos(int blockNumber)
- long getBlockSize(int blockNumber)
- long getBlockCompPos(int blockNumber)
- long getBlockCompSize(int blockNumber)
- int getBlockCheckType(int blockNumber)
- int getBlockNumber(long pos)
- void seekToBlock(int blockNumber)
* Minor improvements to javadoc comments were made.
1.2 (2013-01-29)
* Use fields instead of reallocating frequently-needed temporary
objects in the LZMA encoder.
* Fix the contents of xz-${version}-sources.jar.
* Add OSGi attributes to xz.jar.
1.1 (2012-07-05)
* The depthLimit argument in the LZMA2Options constructor is
no longer ignored.
* LZMA2Options() can no longer throw UnsupportedOptionsException.
* Fix bugs in the preset dictionary support in the LZMA2 encoder.
1.0 (2011-10-22)
* The first stable release
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