Only the most important changes more recent than version 0.6 are noted here.
+Version 1.5.3:
+ The new LZX compressor added in v1.5.2 has been improved and is now
+ enabled by default, except when `wimcapture' or `wimappend' is run
+ *without* the '--compress' option, in which case the faster LZX
+ compressor is used (the same as before). This behavior is reasonably
+ consistent with ImageX which actually uses "fast" (XPRESS) compression
+ by default. In those cases, use '--compress=maximum' to explicitly
+ capture a WIM image using the new (slower but better) LZX compressor.
+
+ The '--compress-slow' option still exists to `wimlib-imagex optimize',
+ but its new behavior is to tweak the new LZX compressor even more to
+ produce an even better compression ratio at the cost of more time spent
+ compressing.
+
+ `wimlib-imagex optimize' now supports the '--compress=TYPE' option,
+ which recompresses the WIM file using the specified compression TYPE.
+ The new library API function used for this is
+ wimlib_set_output_compression_type().
+
+ Added the wimlib_get_xml_data() function to allow library clients to
+ easily retrieve the raw XML data from a WIM file if needed.
+
+ Fixed a bug that could cause an error code to be incorrectly returned
+ when writing XML data containing a <WINDOWS> element.
+
+ Mounted WIM images will now correctly show the default file stream even
+ if appears in the alternate data stream entries of the corresponding WIM
+ directory entry.
+
+Version 1.5.2:
+ Added a new experimental LZX compressor which can be enabled by passing
+ '--compress-slow' to `wimlib-imagex capture' or `wimlib-imagex
+ optimize'. (The latter is only applicable if the WIM is already
+ LZX-compressed and the '--recompress' option is also given.) The
+ experimental compressor is much slower but compresses the data slightly
+ more --- currently usually to within a fraction of a percent of the
+ results from WIMGAPI/ImageX.
+
+ A workaround has been added for compatibility with versions of WinPE
+ that interpret alternate data stream entries in the boot WIM
+ incorrectly.
+
+ An alignment bug that caused a crash in the LZX decompressor on some
+ builds was fixed.
+
+ wimlib now attempts to clear the WIM_HDR_FLAG_WRITE_IN_PROGRESS flag in
+ the WIM header when restoring the previous state of a WIM it failed to
+ successfully update.
+
+ Added a workaround to avoid an access denied error on Windows when
+ replacing a WIM file that another process has opened.
+
+Version 1.5.1:
+ wimlib can now open WinPE WIMs from WAIK v2.1, which had a quirk that
+ needed to be handled.
+
+ A bug in the interpretation of negative IMAGE indices in the
+ --update-of=[WIMFILE:]IMAGE option to `wimlib-imagex capture' and
+ `wimlib-imagex append' has been fixed.
+
+ A workaround has been added to successfully apply security descriptors
+ with empty DACLs when the NTFS-3g apply mode is being used with NTFS-3g
+ 2013.1.13 or earlier.
+
+ `wimlib-imagex capture' can now accept the '--delta-from' option
+ multiple times.
+
Version 1.5.0:
Added support for "pipable" WIMs. Pipable WIMs allow capturing images
to standard output and applying images from standard input, but they are