Only the most important changes more recent than version 0.6 are noted here.
+Version 1.6.3-BETA:
+ Added support for "WIMBoot". On any platform, you can now capture a WIM
+ as WIMBoot-compatible. In addition, on Windows, specifically Windows
+ 8.1 Update 1 and later, you can now apply a WIM archive in a special
+ mode that causes extracted files to be externally backed by the WIM
+ archive. See the documentation for the new '--wimboot' option to
+ wimcapture and wimapply, respectively, for more information.
+
+ The shared library version has been bumped up; however, there are only
+ a few incompatibilities:
+
+ - WIMLIB_COMPRESSION_TYPE_XPRESS is now 1 and
+ WIMLIB_COMPRESSION_TYPE_LZX is now 2 (so it's the same as
+ WIMGAPI).
+
+ - 'struct wimlib_capture_config' has been removed. The library
+ now takes the path to the configuration file directly. This
+ affects wimlib_add_image(), wimlib_add_image_multisource(),
+ and wimlib_update_image(). However no code changes are
+ necessary if a NULL configuration was being used.
+
+ - Removed deprecated functions: some (de)compression functions,
+ wimlib_extract_files(), and wimlib_print_metadata().
+
+ Otherwise the API and ABI is the same.
+
+Version 1.6.2:
+ Case-insensitive comparisons of strings (e.g. filenames) containing
+ UTF-16 codepoints above 32767 are now done correctly.
+
+ Fixed build failure on Mac OS X.
+
+ wimunmount now provides the '--new-image' option to cause changes to a
+ read-write mounted image to be committed as a new image rather than as
+ an update of the mounted image. (The corresponding new library flag is
+ WIMLIB_UNMOUNT_FLAG_NEW_IMAGE.)
+
+ The LZMS ("recovery") compression chunk size, or "dictionary size", may
+ now be up to 1 GiB (1,073,741,824 bytes).
+
+ The performance of LZX ("maximum") and LZMS ("recovery") compression
+ with large chunk sizes has been slightly improved.
+
Version 1.6.1:
Stored files with size exactly 4 GiB (4,294,967,296 bytes) are now
decompressed correctly.