2 Made another round of performance improvements to the XPRESS, LZX, and
5 On Windows, wimextract and its underlying library function
6 wimlib_extract_paths() will no longer fail if given a target directory
7 path ending in a slash.
9 On Windows, wimlib will now attempt to enable short name generation on
10 the target volume if any files being extracted have short names.
12 No API changes, but a few documentation improvements.
15 Made more improvements to the XPRESS, LZX, and LZMS compressors.
17 The default compression mode for wimcapture is now LZX compression in
18 its default mode, which is the same as '--compress=maximum'.
20 You can now specify an optional integer compression level to the
21 '--compress' option; e.g. '--compress=lzx:75'.
23 Made a minor change to the LZMS compressor and decompressor to fix an
24 incompatibility with the Microsoft implementation. In the unlikely
25 event that you created an LZMS-compressed WIM with wimlib v1.7.0 or
26 earlier and a checksum error is reported when extracting files from it
27 with wimlib v1.7.1, decompress it with v1.7.0 then compress it with
30 Added 'verify' subcommand to wimlib-imagex.
32 Notable library changes:
34 Custom compressor parameters have been removed from the library
35 in favor of the simpler level-based API.
37 Decompressor parameters have been removed entirely.
39 Library users can now specify a custom file for warning and
40 error messages to be sent to, rather than the default of
43 New progress messages:
44 WIMLIB_PROGRESS_MSG_EXTRACT_FILE_STRUCTURE,
45 WIMLIB_PROGRESS_MSG_EXTRACT_METADATA.
47 New function: wimlib_verify_wim().
50 Improved compression, decompression, and extraction performance.
52 Improved compatibility with version 3584 WIM / ESD files:
53 - Add support for reading and writing multiple solid blocks per
54 archive, which WIMGAPI/DISM can create when appending an image.
55 - Correctly create solid blocks larger than 4 GiB.
57 'add' commands passed to wimupdate will now replace existing
58 nondirectory files by default. Use the --no-replace option to get the
61 The license for the library now contains an exception that allows using
62 it under the LGPL. See the COPYING file for details.
64 In reparse-point fixup mode (the default for capture), symbolic links
65 and junctions that point outside the tree being captured are no longer
66 excluded from capture.
68 Added support for "WIMBoot" capture and extraction. See the
69 documentation for the new '--wimboot' option to wimcapture and wimapply
72 On UNIX-like systems, you can now backup and restore device nodes, named
73 pipes, and sockets. In addition, 32-bit user and group IDs are now
76 The way that UNIX data is stored in WIM files has been changed. If you
77 captured any WIMs with the --unix-data option, to upgrade them you'll
78 need to apply them with --unix-data using wimlib-imagex v1.6.2, then
79 re-capture them with --unix-data using this version.
81 wimlib now understands tagged metadata items, such as object IDs, that
82 can be stored in WIM directory entries.
84 Removed the --hardlink and --symlink options to wimapply, since I don't
85 think they are too useful and they got in the way of improving the code.
87 WIMs will now retain their GUIDs when rebuilt (e.g. with wimoptimize).
89 The 'mkwinpeimg' script now supports writing the ISO image to standard
92 The <ARCH> element in WIM XML data is now exported correctly.
94 On Windows, sparse file attributes are no longer set on extracted files.
95 Oddly enough, this actually saves disk space in some cases.
97 On UNIX, configuring with --disable-xattr or --enable-xattr is no longer
98 supported. Mounting WIM images now always requires extended attribute
99 support. Use --without-fuse to disable support for mounting WIM images;
100 this will also disable the need for extended attribute support.
102 Configuring with --enable-ssse3-sha1 now works correctly.
104 The shared library version has been bumped up. The main
105 incompatibilities are:
107 - WIMLIB_COMPRESSION_TYPE_XPRESS is now 1 and
108 WIMLIB_COMPRESSION_TYPE_LZX is now 2 (so it's the same as
111 - User-provided progress functions are now registered using a
112 separate function, wimlib_register_progress_function(). The
113 'progress_func' argument to many functions no longer exists.
115 - The return value from user-provided progress functions is now
118 - A context argument has been added to the prototype of
119 user-provided progress functions.
121 - 'struct wimlib_capture_config' has been removed. The library
122 now takes the path to the configuration file directly. This
123 affects wimlib_add_image(), wimlib_add_image_multisource(),
124 and wimlib_update_image(). However, a NULL value passed in
125 the argument retains the same meaning.
127 - Removed deprecated functions: some (de)compression functions,
128 wimlib_extract_files(), and wimlib_print_metadata().
130 - Removed extraction flags: WIMLIB_EXTRACT_FLAG_HARDLINK,
131 WIMLIB_EXTRACT_FLAG_SYMLINK, WIMLIB_EXTRACT_FLAG_FILE_ORDER,
132 and WIMLIB_EXTRACT_FLAG_SEQUENTIAL.
134 - Removed some progress messages:
135 WIMLIB_PROGRESS_MSG_APPLY_TIMESTAMPS,
136 WIMLIB_PROGRESS_MSG_EXTRACT_DIR_STRUCTURE_BEGIN,
137 WIMLIB_PROGRESS_MSG_EXTRACT_DIR_STRUCTURE_END. Numbering
140 - Removed some error codes. Numbering stays the same.
142 - Replaced WIMLIB_UNMOUNT_FLAG_LAZY with
143 WIMLIB_UNMOUNT_FLAG_FORCE.
145 - WIM paths passed to progress functions now have a leading
149 Case-insensitive comparisons of strings (e.g. filenames) containing
150 UTF-16 codepoints above 32767 are now done correctly.
152 Fixed build failure on Mac OS X.
154 wimunmount now provides the '--new-image' option to cause changes to a
155 read-write mounted image to be committed as a new image rather than as
156 an update of the mounted image. (The corresponding new library flag is
157 WIMLIB_UNMOUNT_FLAG_NEW_IMAGE.)
159 The LZMS ("recovery") compression chunk size, or "dictionary size", may
160 now be up to 1 GiB (1,073,741,824 bytes).
162 The performance of LZX ("maximum") and LZMS ("recovery") compression
163 with large chunk sizes has been slightly improved.
166 Stored files with size exactly 4 GiB (4,294,967,296 bytes) are now
167 decompressed correctly.
169 Fixed a bug in the LZX compressor introduced in v1.5.3. The bug
170 occurred in an unlikely case, and due to validity checks it did not
171 affect successfully created archives.
173 Fixed a minor compatibility issue with the LZMS compressor and
174 decompressor. This is *not* the default compression type and was only
175 introduced in v1.6.0. In the unlikely event that you created an
176 LZMS-compressed WIM with v1.6.0 and a checksum error is reported when
177 applying it with v1.6.1, decompress it with v1.6.0 then compress it with
180 Memory usage for LZMS and LZX compression has been decreased.
182 wimextract now allows wildcard characters in paths specified on the
183 command line. Also, the '--strict-wildcards' option has been removed
184 and replaced with the inverse option '--nullglob'. See the
185 documentation for wimextract for more details and changes.
187 The wimlib_extract_files() function is now considered deprecated in
188 favor of wimlib_extract_paths().
190 Fixed more permissions problems when extracting files on Windows.
192 A new '--no-attributes' option has been added to wimapply and
193 wimextract. The library flag is WIMLIB_EXTRACT_FLAG_NO_ATTRIBUTES.
195 The default chunk size is now set correctly when changing the
196 compression type of a WIM, for example with 'wimoptimize'.
198 The '--metadata' option to wiminfo has been replaced with the
199 '--detailed' option to wimdir.
201 In relevant wimlib-imagex commands, '--solid' may now be used as an
202 alias for '--pack-streams'.
205 Support for extracting and updating the new version 3584 WIMs has been
206 added. These WIMs typically pack many streams ("files") together into a
207 single compressed resource, thereby saving space. This degrades the
208 performance of random access (such as that which occurs on a mounted
209 image), but optimizations have been implemented for extraction. These
210 new WIM files also typically use a new compression format (LZMS), which
211 is similar to LZMA and can offer a better compression ratio than LZX.
212 These new WIM files can be created using `wimcapture' with
213 the '--compress=lzms --pack-streams' options. Note: this new WIM format
214 is used by the Windows 8 web downloader, but important segments of the
215 raw '.esd' files are encrypted, so wimlib will not be able to extract
216 such files until they are first decrypted.
218 wimlib now supports extracting files and directories from a WIM image
219 based on a "listfile" that itself contains the list of paths to extract.
220 For `wimextract', the syntax is to specify @LISTFILE instead of a PATH,
221 and for the library itself, the new APIs are wimlib_extract_pathlist()
222 and wimlib_extract_paths(). Path globs containing wildcard characters
225 For searching WIM files, wimlib now has configurable case sensitivity.
226 The default on Windows is still case-insensitive and the default on
227 UNIX-like systems is still case-sensitive, but this can be overridden
228 on either platform through flags to wimlib_global_init(). For
229 `wimlib-imagex', the environmental variable WIMLIB_IMAGEX_IGNORE_CASE
230 can be set to 1 or 0 for case-insensitive or case-sensitive behavior,
233 Support for compression chunk sizes greater than the default of 32768
234 bytes has been added. A larger chunk size typically results in a better
235 compression ratio. However, the MS implementation is seemingly not
236 compatible with all chunk sizes, especially for LZX compression, so the
237 defaults remain unchanged, with the exception of the new LZMS-compressed
238 WIMs, which use a larger chunk size by default.
240 The compression/decompression API exported by wimlib has been changed.
241 Now one set of functions handles all supported compression formats.
243 `wimcapture' and `wimappend' will now display the progress of scanning
244 the directory tree to capture, in addition to the progress of writing
245 data to the WIM. The '--verbose' option no longer does anything. The
246 library API change for this is the addition of several members to
247 `struct wimlib_progress_info_scan' available to progress callbacks.
249 `mkwinpeimg' now correctly handles the '--start-script' option when the
250 start script is not in the working directory.
252 Sequential extraction, previously requested by using
253 WIMLIB_EXTRACT_FLAG_SEQUENTIAL, is now the default.
254 WIMLIB_EXTRACT_FLAG_FILE_ORDER can be used to get the old default
255 behavior (extract in file order).
258 The new LZX compressor added in v1.5.2 has been improved and is now
259 enabled by default, except when `wimcapture' or `wimappend' is run
260 *without* the '--compress' option, in which case the faster LZX
261 compressor is used (the same as before). This behavior is reasonably
262 consistent with ImageX which actually uses "fast" (XPRESS) compression
263 by default. In those cases, use '--compress=maximum' to explicitly
264 capture a WIM image using the new (slower but better) LZX compressor.
266 The '--compress-slow' option still exists to `wimlib-imagex optimize',
267 but its new behavior is to tweak the new LZX compressor even more to
268 produce an even better compression ratio at the cost of more time spent
271 `wimlib-imagex optimize' now supports the '--compress=TYPE' option,
272 which recompresses the WIM file using the specified compression TYPE.
273 The new library API function used for this is
274 wimlib_set_output_compression_type().
276 Added the wimlib_get_xml_data() function to allow library clients to
277 easily retrieve the raw XML data from a WIM file if needed.
279 Fixed a bug that could cause an error code to be incorrectly returned
280 when writing XML data containing a <WINDOWS> element.
282 Mounted WIM images will now correctly show the default file stream even
283 if appears in the alternate data stream entries of the corresponding WIM
287 Added a new experimental LZX compressor which can be enabled by passing
288 '--compress-slow' to `wimlib-imagex capture' or `wimlib-imagex
289 optimize'. (The latter is only applicable if the WIM is already
290 LZX-compressed and the '--recompress' option is also given.) The
291 experimental compressor is much slower but compresses the data slightly
292 more --- currently usually to within a fraction of a percent of the
293 results from WIMGAPI/ImageX.
295 A workaround has been added for compatibility with versions of WinPE
296 that interpret alternate data stream entries in the boot WIM
299 An alignment bug that caused a crash in the LZX decompressor on some
302 wimlib now attempts to clear the WIM_HDR_FLAG_WRITE_IN_PROGRESS flag in
303 the WIM header when restoring the previous state of a WIM it failed to
306 Added a workaround to avoid an access denied error on Windows when
307 replacing a WIM file that another process has opened.
310 wimlib can now open WinPE WIMs from WAIK v2.1, which had a quirk that
311 needed to be handled.
313 A bug in the interpretation of negative IMAGE indices in the
314 --update-of=[WIMFILE:]IMAGE option to `wimlib-imagex capture' and
315 `wimlib-imagex append' has been fixed.
317 A workaround has been added to successfully apply security descriptors
318 with empty DACLs when the NTFS-3g apply mode is being used with NTFS-3g
319 2013.1.13 or earlier.
321 `wimlib-imagex capture' can now accept the '--delta-from' option
325 Added support for "pipable" WIMs. Pipable WIMs allow capturing images
326 to standard output and applying images from standard input, but they are
327 not compatible with Microsoft's software and are not created by default.
328 See the documentation for --pipable flag of `wimlib-imagex capture' for
331 To better support incremental backups, added support for declaring an
332 image as a modified form of another image. See the documentation for
333 the '--update-of' option of `wimlib-imagex append' and `wimlib-imagex
336 Added supported for "delta" WIMs. See the documentation for the
337 '--delta-from' option of `wimlib-imagex capture'.
339 The library support for managing split WIMs has been changed to support
340 other arrangements, such as delta WIMs, and be easier to use. This
341 change is visible in `wimlib-imagex', which also can now accept the
342 '--ref' option multiple times, and also now supports "delta" WIMs as
345 wimlib now preserves WIM integrity tables by default, even if
346 WIMLIB_WRITE_FLAG_CHECK_INTEGRITY is not specified. This changes the
347 behavior of `wimlib-imagex' whenever the WIM being operated on contains
348 an integrity table and the '--check' option is not specified.
350 `wimlib-imagex capture' now creates LZX-compressed WIMs by default
351 (when --compress is not specified). This provides the best compression
352 ratio by default, which is usually what is desired, at a cost of some
355 `wimlib-imagex' now supports being invoked as wimCOMMAND, where COMMAND
356 is the command as in `wimlib-imagex COMMAND'; for example, it can be
357 invoked as `wimapply' as an alternative to `wimlib-imagex apply'. The
358 appropriate hard links are created in UNIX installations of
359 `wimlib-imagex', while for the Windows distribution of `wimlib-imagex',
360 batch files that emulate this behavior are generated.
362 Security descriptors are now extracted correctly on Windows.
364 Fixed archiving DOS names in NTFS-3g capture mode.
366 The extraction code has been rewritten and it will now be easier to
367 support new features on all supported backends (currently Win32, UNIX,
368 and NTFS-3g). For example, hard-linked extraction mode (--hardlink) is
369 now supported on all backends, not just UNIX.
371 `mkwinpeimg' now supports grabbing files from the WAIK supplement rather
372 than the WAIK itself.
374 wimlib_global_init() now, by default, attempts to acquire additional
375 privileges on Windows, so library clients need not do this.
377 This update bumps the shared library version number up to 9, since it is
378 not binary compatibible with previous releases.
381 Fixed bug in `wimlib-imagex export' that made it impossible to export an
382 image from a WIM that is readonly at the filesystem level.
384 Return error code rather than segfaulting when trying to list files from
385 a non-first part of a split WIM.
387 Joining a WIM will now preserve the RP_FIX and READONLY flags.
390 On Windows, paths given to wimlib-imagex are now treated case
393 Improved behavior regarding invalid filenames; in particular, on
394 Windows, wimlib-imagex will, when extracting, now omit (with an option
395 to override this default) filenames differing only in case, or filenames
396 containing characters not valid on Windows.
398 On Windows, wimlib now supports capturing and extracting long paths
399 (longer than the so-called MAX_PATH).
401 On Windows, `wimlib-imagex update' now acquires proper privileges when
402 running as an Administrator.
404 `wimlib-imagex update' will now complain if no image is specified when
405 trying to update a multi-image WIM.
407 `wimlib-imagex update' now supports specifying a single update command
408 directly on the command line using the --command option.
410 wimlib-imagex will now choose different units for progress messages,
411 depending on the amount of data that needs to be processed.
413 `wimlib-imagex append' will now generate a unique WIM image name if no
414 name is specified and the defaulted name already exists in the WIM.
416 wimlib now allows you to create unnamed WIM images, which can then only
417 be referred to by index.
419 wimlib now allows you to explicitly declare you want write access to a
420 WIM by providing the WIMLIB_OPEN_FLAG_WRITE_ACCESS flag to
423 wimlib now respects the WIM_HDR_FLAG_READONLY flag when set in the WIM
426 Progress callbacks have been added to wimlib's wimlib_update_image()
429 Added wimlib_get_wim_info(), wimlib_set_wim_info(),
430 wimlib_iterate_dir_tree(), and wimlib_iterate_lookup_table() functions
433 NTFS-3g capture now only warns about two conditions previously treated
436 Fixed a couple issues with using wimlib-imagex on UDF filesystems on
439 wimlib now correctly detects and returns an error when reading a WIM
440 image with a cyclic directory structure. (Fun fact: such a WIM will
441 crash Microsoft's software.)
444 Added new "extract" and "update" subcommands to wimlib-imagex, along
445 with associated APIs in the library. These commands are intended mainly
446 for Windows use but can be used on UNIX as well.
448 Many documentation improvements.
450 Fixed a bug in the Windows build where relative symbolic links were not
451 captured in reparse-point fixup mode.
453 Fixed a bug in the Windows build where file handles were left open to
454 the WIM file, causing `wimlib_imagex optimize' to fail in some cases.
456 Fixed a bug in the Windows build of wimlib-imagex where globbing
457 split-WIM parts could cause the program to crash.
459 Fixed a bug where the creation time of WIM images would be shown instead
460 of the last modification time.
462 With the Windows build it is now possible to restore a WIM containing
463 symbolic links as a non-Administrator; however you will receive warnings
464 about not being able to extract the symbolic links.
467 Capturing a WIM image should now be significantly faster in most cases
468 due to improved use of the operating system's cache and avoiding reading
469 files twice whenever possible.
471 The Windows build should now work on Windows XP.
473 The Windows build now supports capturing and restoring hidden,
474 compressed, sparse, and encrypted files.
476 The Windows build now supports capturing and applying WIM images from
477 filesystems other than NTFS (with some reduced functionality).
479 The Windows build now extracts short names correctly.
481 Added support for "reparse-point" fixups (i.e. fixing up of symbolic
482 links). See docs for --rpfix and --norpfix flags of `wimlib-imagex
483 capture' and `wimlib-imagex apply'.
485 The performance of splitting and joining WIMs should be slightly
488 The LZX and XPRESS compression and decompression functions are now
489 exported from the library.
492 Improvements and bugfixes for the Windows build.
494 Added --strict-acls options.
496 Fixed the way that wimlib determines the order of images in the WIM.
499 Since wimlib can now be used on Windows, wimlib's implementation of
500 ImageX has been renamed to wimlib-imagex to avoid confusion with
501 Microsoft's implementation of ImageX, which would have the same file
502 name ("imagex.exe"). If you really don't like this you can pass the
503 --with-imagex-progname option to `configure' to choose a different name,
504 or even simply rename the binary yourself (but the former way will
505 configure the man pages to use the chosen name).
507 Various bugs fixed in the Windows build. Mainly to do with capturing
508 and restoring alternate data streams correctly in weird cases, and
509 requesting the correct privileges when opening files. Also added the
510 --noacls options to wimlib-imagex capture, append, and apply.
512 Windows build again: FindFirstStreamW() and FindNextStreamW() are now
513 dynamically loaded, so this may make the library compatible with Windows
514 XP (however, there may still be other problems).
517 Added experimental support for native Windows builds. Binaries can be
518 downloaded from the SourceForge page.
520 --source-list option added to `imagex capture' and `imagex append'.
522 Better support for different character encodings.
525 Storing UNIX file owners, groups, and modes in WIM images is now
526 possible using `imagex capture' with the --unix-data flag.
528 Minor bug fixes and documentation fixes.
531 NTFS capture: Fixed capturing duplicate reparse points.
533 NTFS capture: Capture first unnamed stream if there are more than one
534 (print warning instead of error).
536 Allow multiple test cases to execute concurrently (e.g. make -j2 check).
539 Added --arch switch to mkwinpeimg script to support getting AMD64 WinPE
542 Update to work with ntfs-3g version 2013.1.13.
545 Fixed truncating file to shorter but non-zero length on read-write
548 Various code cleanups and minor documentation fixes.
551 LZX and XPRESS decompression have received some additional optimizations
552 and should now be even faster. (Although, they were already pretty
553 fast--- much faster than typical I/O speeds.)
555 Fixed a bug introduced in v1.2.1 that would cause a directory tree
556 containing hard links to be captured incorrectly in some cases.
559 By default, unmounting a read-write mounted WIM with 'imagex unmount
560 --commit' will now change the WIM in-place without needing to write the
561 entire WIM again. Use 'imagex unmount --commit --rebuild' to get the
564 'imagex unmount' no longer has a hard-coded limit of 10 minutes to wait
565 for a response from the daemon servicing the mounted WIM. Instead,
566 every second 'imagex unmount' will check if the daemon is still alive,
567 and keep waiting if so, otherwise terminate with an error.
569 'imagex unmount --commit' on a read-write mounted WIM will now print
570 progress information regarding the writing of new or modified streams
571 the WIM, just like when capturing or appending a WIM.
573 A small change has been made to XPRESS compression and it should improve
574 the compression ratio slightly.
576 A change was made that may improve performance slightly when applying a
577 WIM image to a NTFS volume.
579 Microsoft has managed to introduce even more bugs into their software,
580 and now the WIMs for Windows 8 have incorrect (too low) reference counts
581 for some streams. This is unsafe because such streams can be removed
582 when they are in actuality still referenced in the WIM (perhaps by a
583 different image). wimlib will now work around this problem by fixing
584 the stream reference counts. This is only done when wimlib_delete_image() is
585 called ('imagex delete') or when wimlib_mount_image() is called with
586 WIMLIB_MOUNT_FLAG_READWRITE ('imagex mountrw'). Please note that this
587 requires reading the metadata for all images in the WIM, so this will
588 make these operations noticably slower on WIMs with multiple images.
590 Various other bugfixes.
593 Appending images to a WIM is now be done by default without re-building
594 the whole WIM. Use the --rebuild flag to get the old behavior (which
595 was to re-build the entire WIM when a new image is appended).
597 A new command `imagex optimize' is now available to manually re-build a
598 WIM that has wasted space due to repeated appends.
600 Progress information has been improved, and now arbitrary callback
601 functions can be used to show the progress of a WIM operation.
603 A possible bug with changing the bootable image of a WIM was fixed.
605 Some advisory locking is now done to prevent two processes from
606 modifying a WIM at the same time (but only in some cases). For example,
607 you cannot mount two images from a WIM read-write at the same time.
609 Some functions have been reorganized:
610 * wimlib_mount() renamed to wimlib_mount_image().
611 * wimlib_unmount() renamed to wimlib_unmount_image().
612 * wimlib_overwrite_xml_and_header() removed as
613 wimlib_overwrite() suffices now.
614 * wimlib_apply_image_to_ntfs_volume() removed as
615 wimlib_extract_image() suffices now.
616 * wimlib_add_image_from_ntfs_volume() removed as
617 * wimlib_add_image() suffices now.
619 Previously, the soname of libwim.so has been 0.0.0, despite many
620 interface changes. The soname is now updated to 1.0.0 and will now be
621 updated each release.
624 Resources will now be compressed using multiple threads by default.
625 (This applies to `imagex capture', `imagex append', and `imagex
628 Some performance improvements in mounted WIMs.
630 More progress information is shown when capturing a WIM.
633 Lots of minor fixes, code cleanups, and some documentation updates.
634 Nothing in particular is really noteworthy.
637 LZX and XPRESS compression improvements.
639 Fixed calculation of Directory Count, File Count, Total Bytes, and Hard
640 Link Bytes of the WIM.
643 Fixed bug when capturing NTFS file with multiple named data streams.
645 Internally, we are now using inode structures, even though these don't
646 appear literally in the WIM file. This simplifies some of the code
647 (mainly for WIM mounting) and likely fixed a few problems, although it
651 Fixed problem when exporting images from XPRESS to LZX compressed WIM or
655 Enough changes to call it version 1.0.0!
657 Capturing a WIM directly from a NTFS volume, and applying a WIM directly
658 to a NTFS volume, is now supported.
660 Hard links and symbolic links have much improved support. They are
661 supported for WIM capture, WIM application, and mounted WIMs (you can
662 even make them on read-write mounted WIMs).
664 Alternate data streams are now supported on mounted WIMs through an
665 xattr or a Windows-style stream interface. Also they are supported when
666 capturing a WIM from NTFS or applying a WIM to NTFS.
668 Split WIMs are better supported. You may now apply an image directly
669 from a split WIM, mount an image from a split WIM read-only, or export
670 an image from a split WIM.
672 Using a capture configuration file is now supported (but not fully yet).
674 SHA1 message digests are checked in more places, so we can make sure
675 applied and captured data is correct.
677 Man pages have been updated and consolidated.
680 Fixed segfault when unmounting read-only WIM.
683 Support for joining and splitting WIMs.
684 Also, security data is now preserved by default.
687 Can now build with older gcc and system headers, like on CentOS 5.
690 Fixed bug that made it impossible to overwrite files in read-write
694 Write byte-order mark before WIM XML data. (imagex.exe requires this to