2 Fixed a bug in the LZX decompressor: malicious input data could cause
3 out of bounds writes to memory (since wimlib v1.2.2).
5 A file can now have both an unnamed data stream ("file contents") and a
6 reparse point stream. Such files can exist as a result of the use of
7 certain Windows features, such as offline storage, including "OneDrive".
8 wimlib will now store and restore both streams on Windows as well as in
9 NTFS-3g mode. Microsoft's WIMGAPI also has this behavior.
11 On Windows, named data streams of encrypted files are no longer stored
12 twice in WIM archives.
14 On Windows, named data streams are now correctly extracted to existing
15 "readonly" directories. Before, an error would be reported.
17 On Windows, when doing an extraction in "WIMBoot mode", files larger
18 than 4 gigabytes are now never extracted as externally backed. This
19 works around a bug in Microsoft's "WOF" driver.
21 The '--enable-verify-compression' configure option has been removed. If
22 you want to verify a WIM file, use the 'wimverify' program.
25 Improved the LZX compressor. It is now 15-20% faster than before and
26 provides a slightly better compression ratio.
28 Improved the LZMS compressor. It now provides a compression ratio
29 slightly better than WIMGAPI while still being faster and using slightly
32 The compression chunk size in solid resources, e.g. when capturing or
33 exporting a WIM file using the '--solid' option, now defaults to 64 MiB
34 (67108864 bytes) instead of 32 MiB (33554432 bytes). This provides a
35 better compression ratio and is the same value that WIMGAPI uses. The
36 memory usage is less than 50% higher than wimlib v1.7.4 and is slightly
37 lower than WIMGAPI's memory usage, but if it is too much, it is still
38 possible to choose a lower value, e.g. with the '--solid-chunk-size'
39 option to wimlib-imagex.
41 The '--chunk-size' and '--solid-chunk-size' options to wimlib-imagex now
42 accept the 'K', 'M', and 'G' suffixes.
44 Files are now sorted by name extension when creating a solid WIM file.
46 Fixed various issues related to capture/apply of EFS-encrypted files on
49 The file list printed by 'wimdir' is now sorted by the platform-specific
50 case sensitivity setting, rather than always case sensitively. This
51 also affects the library function wimlib_iterate_dir_tree().
53 On Windows, some error and warning messages have been improved.
56 The Windows binary distribution no longer contains third party DLLs.
57 These dependencies are instead compiled directly into the libwim DLL.
59 Added more fixes for wimlib on non-x86 architectures such as ARM.
61 Extracting files to a Windows PE in-memory filesystem no longer fails if
62 the target files do not yet exist.
64 Improved the performance of XPRESS compression and LZMS decompression.
66 Enabled SSSE3 accelerated SHA-1 computation in x86_64 Windows builds.
67 It will automatically be faster on newer Intel and AMD processors.
69 Removed the --with-imagex-progname and --enable-more-assertions
73 Fix for very slow export from solid WIM / ESD files.
75 Fix for LZX and LZMS algorithms on non-x86 architectures, such as ARM.
77 New progress message: WIMLIB_PROGRESS_MSG_HANDLE_ERROR. Applications
78 may use this to treat some types of errors as non-fatal.
80 The library now permits making in-memory changes to a WIMStruct backed
81 by a read-only WIM file.
83 Fixes for "WIMBoot" extraction mode (Windows only):
85 When not using the WOF driver, extraction no longer fails if the
86 disk containing the WIM file has too many partitions.
88 When matching patterns in [PrepopulateList], all hard links of
89 each file are now considered.
91 The system registry files are now automatically treated as being
94 Added a hack to try to work around an intermittent bug in
95 Microsoft's WOF (Windows Overlay Filesystem) driver.
98 Made more improvements to the XPRESS, LZX, and LZMS compressors.
100 A number of improvements to the Windows port:
102 Fixes for setting short filenames.
104 Faster "WIMBoot" extraction.
106 Updated and slimmed down the dependent DLLs.
108 ACL inheritence bits are now restored.
110 Mandatory integrity labels are now backed up and restored.
112 Added a workaround for an issue where in rare cases, wimlib could create
113 a compressed data stream that could not be read correctly by Windows
114 after an extraction in "WIMBoot" mode.
117 Added file count progress data for
118 WIMLIB_PROGRESS_MSG_EXTRACT_FILE_STRUCTURE and
119 WIMLIB_PROGRESS_MSG_EXTRACT_METADATA.
121 Added support for testing file exclusions via the user-provided
124 Some documentation improvements.
126 Made some clarifications to the license text in the COPYING file.
129 Made more improvements to the XPRESS, LZX, and LZMS compressors.
131 The default compression mode for wimcapture is now LZX compression in
132 its default mode, which is the same as '--compress=maximum'.
134 You can now specify an optional integer compression level to the
135 '--compress' option; e.g. '--compress=lzx:75'.
137 Made a minor change to the LZMS compressor and decompressor to fix an
138 incompatibility with the Microsoft implementation. In the unlikely
139 event that you created an LZMS-compressed WIM with wimlib v1.7.0 or
140 earlier and a checksum error is reported when extracting files from it
141 with wimlib v1.7.1, decompress it with v1.7.0 then compress it with
144 Added 'verify' subcommand to wimlib-imagex.
146 Notable library changes:
148 Custom compressor parameters have been removed from the library
149 in favor of the simpler level-based API.
151 Decompressor parameters have been removed entirely.
153 Library users can now specify a custom file for warning and
154 error messages to be sent to, rather than the default of
157 New progress messages:
158 WIMLIB_PROGRESS_MSG_EXTRACT_FILE_STRUCTURE,
159 WIMLIB_PROGRESS_MSG_EXTRACT_METADATA.
161 New function: wimlib_verify_wim().
164 Improved compression, decompression, and extraction performance.
166 Improved compatibility with version 3584 WIM / ESD files:
167 - Add support for reading and writing multiple solid blocks per
168 archive, which WIMGAPI/DISM can create when appending an image.
169 - Correctly create solid blocks larger than 4 GiB.
171 'add' commands passed to wimupdate will now replace existing
172 nondirectory files by default. Use the --no-replace option to get the
175 The license for the library now contains an exception that allows using
176 it under the LGPL. See the COPYING file for details.
178 In reparse-point fixup mode (the default for capture), symbolic links
179 and junctions that point outside the tree being captured are no longer
180 excluded from capture.
182 Added support for "WIMBoot" capture and extraction. See the
183 documentation for the new '--wimboot' option to wimcapture and wimapply
184 for more information.
186 On UNIX-like systems, you can now backup and restore device nodes, named
187 pipes, and sockets. In addition, 32-bit user and group IDs are now
190 The way that UNIX data is stored in WIM files has been changed. If you
191 captured any WIMs with the --unix-data option, to upgrade them you'll
192 need to apply them with --unix-data using wimlib-imagex v1.6.2, then
193 re-capture them with --unix-data using this version.
195 wimlib now understands tagged metadata items, such as object IDs, that
196 can be stored in WIM directory entries.
198 Removed the --hardlink and --symlink options to wimapply, since I don't
199 think they are too useful and they got in the way of improving the code.
201 WIMs will now retain their GUIDs when rebuilt (e.g. with wimoptimize).
203 The 'mkwinpeimg' script now supports writing the ISO image to standard
206 The <ARCH> element in WIM XML data is now exported correctly.
208 On Windows, sparse file attributes are no longer set on extracted files.
209 Oddly enough, this actually saves disk space in some cases.
211 On UNIX, configuring with --disable-xattr or --enable-xattr is no longer
212 supported. Mounting WIM images now always requires extended attribute
213 support. Use --without-fuse to disable support for mounting WIM images;
214 this will also disable the need for extended attribute support.
216 Configuring with --enable-ssse3-sha1 now works correctly.
218 The shared library version has been bumped up. The main
219 incompatibilities are:
221 - WIMLIB_COMPRESSION_TYPE_XPRESS is now 1 and
222 WIMLIB_COMPRESSION_TYPE_LZX is now 2 (so it's the same as
225 - User-provided progress functions are now registered using a
226 separate function, wimlib_register_progress_function(). The
227 'progress_func' argument to many functions no longer exists.
229 - The return value from user-provided progress functions is now
232 - A context argument has been added to the prototype of
233 user-provided progress functions.
235 - 'struct wimlib_capture_config' has been removed. The library
236 now takes the path to the configuration file directly. This
237 affects wimlib_add_image(), wimlib_add_image_multisource(),
238 and wimlib_update_image(). However, a NULL value passed in
239 the argument retains the same meaning.
241 - Removed deprecated functions: some (de)compression functions,
242 wimlib_extract_files(), and wimlib_print_metadata().
244 - Removed extraction flags: WIMLIB_EXTRACT_FLAG_HARDLINK,
245 WIMLIB_EXTRACT_FLAG_SYMLINK, WIMLIB_EXTRACT_FLAG_FILE_ORDER,
246 and WIMLIB_EXTRACT_FLAG_SEQUENTIAL.
248 - Removed some progress messages:
249 WIMLIB_PROGRESS_MSG_APPLY_TIMESTAMPS,
250 WIMLIB_PROGRESS_MSG_EXTRACT_DIR_STRUCTURE_BEGIN,
251 WIMLIB_PROGRESS_MSG_EXTRACT_DIR_STRUCTURE_END. Numbering
254 - Removed some error codes. Numbering stays the same.
256 - Replaced WIMLIB_UNMOUNT_FLAG_LAZY with
257 WIMLIB_UNMOUNT_FLAG_FORCE.
259 - WIM paths passed to progress functions now have a leading
263 Case-insensitive comparisons of strings (e.g. filenames) containing
264 UTF-16 codepoints above 32767 are now done correctly.
266 Fixed build failure on Mac OS X.
268 wimunmount now provides the '--new-image' option to cause changes to a
269 read-write mounted image to be committed as a new image rather than as
270 an update of the mounted image. (The corresponding new library flag is
271 WIMLIB_UNMOUNT_FLAG_NEW_IMAGE.)
273 The LZMS ("recovery") compression chunk size, or "dictionary size", may
274 now be up to 1 GiB (1,073,741,824 bytes).
276 The performance of LZX ("maximum") and LZMS ("recovery") compression
277 with large chunk sizes has been slightly improved.
280 Stored files with size exactly 4 GiB (4,294,967,296 bytes) are now
281 decompressed correctly.
283 Fixed a bug in the LZX compressor introduced in v1.5.3. The bug
284 occurred in an unlikely case, and due to validity checks it did not
285 affect successfully created archives.
287 Fixed a minor compatibility issue with the LZMS compressor and
288 decompressor. This is *not* the default compression type and was only
289 introduced in v1.6.0. In the unlikely event that you created an
290 LZMS-compressed WIM with v1.6.0 and a checksum error is reported when
291 applying it with v1.6.1, decompress it with v1.6.0 then compress it with
294 Memory usage for LZMS and LZX compression has been decreased.
296 wimextract now allows wildcard characters in paths specified on the
297 command line. Also, the '--strict-wildcards' option has been removed
298 and replaced with the inverse option '--nullglob'. See the
299 documentation for wimextract for more details and changes.
301 The wimlib_extract_files() function is now considered deprecated in
302 favor of wimlib_extract_paths().
304 Fixed more permissions problems when extracting files on Windows.
306 A new '--no-attributes' option has been added to wimapply and
307 wimextract. The library flag is WIMLIB_EXTRACT_FLAG_NO_ATTRIBUTES.
309 The default chunk size is now set correctly when changing the
310 compression type of a WIM, for example with 'wimoptimize'.
312 The '--metadata' option to wiminfo has been replaced with the
313 '--detailed' option to wimdir.
315 In relevant wimlib-imagex commands, '--solid' may now be used as an
316 alias for '--pack-streams'.
319 Support for extracting and updating the new version 3584 WIMs has been
320 added. These WIMs typically pack many streams ("files") together into a
321 single compressed resource, thereby saving space. This degrades the
322 performance of random access (such as that which occurs on a mounted
323 image), but optimizations have been implemented for extraction. These
324 new WIM files also typically use a new compression format (LZMS), which
325 is similar to LZMA and can offer a better compression ratio than LZX.
326 These new WIM files can be created using `wimcapture' with
327 the '--compress=lzms --pack-streams' options. Note: this new WIM format
328 is used by the Windows 8 web downloader, but important segments of the
329 raw '.esd' files are encrypted, so wimlib will not be able to extract
330 such files until they are first decrypted.
332 wimlib now supports extracting files and directories from a WIM image
333 based on a "listfile" that itself contains the list of paths to extract.
334 For `wimextract', the syntax is to specify @LISTFILE instead of a PATH,
335 and for the library itself, the new APIs are wimlib_extract_pathlist()
336 and wimlib_extract_paths(). Path globs containing wildcard characters
339 For searching WIM files, wimlib now has configurable case sensitivity.
340 The default on Windows is still case-insensitive and the default on
341 UNIX-like systems is still case-sensitive, but this can be overridden
342 on either platform through flags to wimlib_global_init(). For
343 `wimlib-imagex', the environmental variable WIMLIB_IMAGEX_IGNORE_CASE
344 can be set to 1 or 0 for case-insensitive or case-sensitive behavior,
347 Support for compression chunk sizes greater than the default of 32768
348 bytes has been added. A larger chunk size typically results in a better
349 compression ratio. However, the MS implementation is seemingly not
350 compatible with all chunk sizes, especially for LZX compression, so the
351 defaults remain unchanged, with the exception of the new LZMS-compressed
352 WIMs, which use a larger chunk size by default.
354 The compression/decompression API exported by wimlib has been changed.
355 Now one set of functions handles all supported compression formats.
357 `wimcapture' and `wimappend' will now display the progress of scanning
358 the directory tree to capture, in addition to the progress of writing
359 data to the WIM. The '--verbose' option no longer does anything. The
360 library API change for this is the addition of several members to
361 `struct wimlib_progress_info_scan' available to progress callbacks.
363 `mkwinpeimg' now correctly handles the '--start-script' option when the
364 start script is not in the working directory.
366 Sequential extraction, previously requested by using
367 WIMLIB_EXTRACT_FLAG_SEQUENTIAL, is now the default.
368 WIMLIB_EXTRACT_FLAG_FILE_ORDER can be used to get the old default
369 behavior (extract in file order).
372 The new LZX compressor added in v1.5.2 has been improved and is now
373 enabled by default, except when `wimcapture' or `wimappend' is run
374 *without* the '--compress' option, in which case the faster LZX
375 compressor is used (the same as before). This behavior is reasonably
376 consistent with ImageX which actually uses "fast" (XPRESS) compression
377 by default. In those cases, use '--compress=maximum' to explicitly
378 capture a WIM image using the new (slower but better) LZX compressor.
380 The '--compress-slow' option still exists to `wimlib-imagex optimize',
381 but its new behavior is to tweak the new LZX compressor even more to
382 produce an even better compression ratio at the cost of more time spent
385 `wimlib-imagex optimize' now supports the '--compress=TYPE' option,
386 which recompresses the WIM file using the specified compression TYPE.
387 The new library API function used for this is
388 wimlib_set_output_compression_type().
390 Added the wimlib_get_xml_data() function to allow library clients to
391 easily retrieve the raw XML data from a WIM file if needed.
393 Fixed a bug that could cause an error code to be incorrectly returned
394 when writing XML data containing a <WINDOWS> element.
396 Mounted WIM images will now correctly show the default file stream even
397 if appears in the alternate data stream entries of the corresponding WIM
401 Added a new experimental LZX compressor which can be enabled by passing
402 '--compress-slow' to `wimlib-imagex capture' or `wimlib-imagex
403 optimize'. (The latter is only applicable if the WIM is already
404 LZX-compressed and the '--recompress' option is also given.) The
405 experimental compressor is much slower but compresses the data slightly
406 more --- currently usually to within a fraction of a percent of the
407 results from WIMGAPI/ImageX.
409 A workaround has been added for compatibility with versions of WinPE
410 that interpret alternate data stream entries in the boot WIM
413 An alignment bug that caused a crash in the LZX decompressor on some
416 wimlib now attempts to clear the WIM_HDR_FLAG_WRITE_IN_PROGRESS flag in
417 the WIM header when restoring the previous state of a WIM it failed to
420 Added a workaround to avoid an access denied error on Windows when
421 replacing a WIM file that another process has opened.
424 wimlib can now open WinPE WIMs from WAIK v2.1, which had a quirk that
425 needed to be handled.
427 A bug in the interpretation of negative IMAGE indices in the
428 --update-of=[WIMFILE:]IMAGE option to `wimlib-imagex capture' and
429 `wimlib-imagex append' has been fixed.
431 A workaround has been added to successfully apply security descriptors
432 with empty DACLs when the NTFS-3g apply mode is being used with NTFS-3g
433 2013.1.13 or earlier.
435 `wimlib-imagex capture' can now accept the '--delta-from' option
439 Added support for "pipable" WIMs. Pipable WIMs allow capturing images
440 to standard output and applying images from standard input, but they are
441 not compatible with Microsoft's software and are not created by default.
442 See the documentation for --pipable flag of `wimlib-imagex capture' for
445 To better support incremental backups, added support for declaring an
446 image as a modified form of another image. See the documentation for
447 the '--update-of' option of `wimlib-imagex append' and `wimlib-imagex
450 Added supported for "delta" WIMs. See the documentation for the
451 '--delta-from' option of `wimlib-imagex capture'.
453 The library support for managing split WIMs has been changed to support
454 other arrangements, such as delta WIMs, and be easier to use. This
455 change is visible in `wimlib-imagex', which also can now accept the
456 '--ref' option multiple times, and also now supports "delta" WIMs as
459 wimlib now preserves WIM integrity tables by default, even if
460 WIMLIB_WRITE_FLAG_CHECK_INTEGRITY is not specified. This changes the
461 behavior of `wimlib-imagex' whenever the WIM being operated on contains
462 an integrity table and the '--check' option is not specified.
464 `wimlib-imagex capture' now creates LZX-compressed WIMs by default
465 (when --compress is not specified). This provides the best compression
466 ratio by default, which is usually what is desired, at a cost of some
469 `wimlib-imagex' now supports being invoked as wimCOMMAND, where COMMAND
470 is the command as in `wimlib-imagex COMMAND'; for example, it can be
471 invoked as `wimapply' as an alternative to `wimlib-imagex apply'. The
472 appropriate hard links are created in UNIX installations of
473 `wimlib-imagex', while for the Windows distribution of `wimlib-imagex',
474 batch files that emulate this behavior are generated.
476 Security descriptors are now extracted correctly on Windows.
478 Fixed archiving DOS names in NTFS-3g capture mode.
480 The extraction code has been rewritten and it will now be easier to
481 support new features on all supported backends (currently Win32, UNIX,
482 and NTFS-3g). For example, hard-linked extraction mode (--hardlink) is
483 now supported on all backends, not just UNIX.
485 `mkwinpeimg' now supports grabbing files from the WAIK supplement rather
486 than the WAIK itself.
488 wimlib_global_init() now, by default, attempts to acquire additional
489 privileges on Windows, so library clients need not do this.
491 This update bumps the shared library version number up to 9, since it is
492 not binary compatibible with previous releases.
495 Fixed bug in `wimlib-imagex export' that made it impossible to export an
496 image from a WIM that is readonly at the filesystem level.
498 Return error code rather than segfaulting when trying to list files from
499 a non-first part of a split WIM.
501 Joining a WIM will now preserve the RP_FIX and READONLY flags.
504 On Windows, paths given to wimlib-imagex are now treated case
507 Improved behavior regarding invalid filenames; in particular, on
508 Windows, wimlib-imagex will, when extracting, now omit (with an option
509 to override this default) filenames differing only in case, or filenames
510 containing characters not valid on Windows.
512 On Windows, wimlib now supports capturing and extracting long paths
513 (longer than the so-called MAX_PATH).
515 On Windows, `wimlib-imagex update' now acquires proper privileges when
516 running as an Administrator.
518 `wimlib-imagex update' will now complain if no image is specified when
519 trying to update a multi-image WIM.
521 `wimlib-imagex update' now supports specifying a single update command
522 directly on the command line using the --command option.
524 wimlib-imagex will now choose different units for progress messages,
525 depending on the amount of data that needs to be processed.
527 `wimlib-imagex append' will now generate a unique WIM image name if no
528 name is specified and the defaulted name already exists in the WIM.
530 wimlib now allows you to create unnamed WIM images, which can then only
531 be referred to by index.
533 wimlib now allows you to explicitly declare you want write access to a
534 WIM by providing the WIMLIB_OPEN_FLAG_WRITE_ACCESS flag to
537 wimlib now respects the WIM_HDR_FLAG_READONLY flag when set in the WIM
540 Progress callbacks have been added to wimlib's wimlib_update_image()
543 Added wimlib_get_wim_info(), wimlib_set_wim_info(),
544 wimlib_iterate_dir_tree(), and wimlib_iterate_lookup_table() functions
547 NTFS-3g capture now only warns about two conditions previously treated
550 Fixed a couple issues with using wimlib-imagex on UDF filesystems on
553 wimlib now correctly detects and returns an error when reading a WIM
554 image with a cyclic directory structure. (Fun fact: such a WIM will
555 crash Microsoft's software.)
558 Added new "extract" and "update" subcommands to wimlib-imagex, along
559 with associated APIs in the library. These commands are intended mainly
560 for Windows use but can be used on UNIX as well.
562 Many documentation improvements.
564 Fixed a bug in the Windows build where relative symbolic links were not
565 captured in reparse-point fixup mode.
567 Fixed a bug in the Windows build where file handles were left open to
568 the WIM file, causing `wimlib_imagex optimize' to fail in some cases.
570 Fixed a bug in the Windows build of wimlib-imagex where globbing
571 split-WIM parts could cause the program to crash.
573 Fixed a bug where the creation time of WIM images would be shown instead
574 of the last modification time.
576 With the Windows build it is now possible to restore a WIM containing
577 symbolic links as a non-Administrator; however you will receive warnings
578 about not being able to extract the symbolic links.
581 Capturing a WIM image should now be significantly faster in most cases
582 due to improved use of the operating system's cache and avoiding reading
583 files twice whenever possible.
585 The Windows build should now work on Windows XP.
587 The Windows build now supports capturing and restoring hidden,
588 compressed, sparse, and encrypted files.
590 The Windows build now supports capturing and applying WIM images from
591 filesystems other than NTFS (with some reduced functionality).
593 The Windows build now extracts short names correctly.
595 Added support for "reparse-point" fixups (i.e. fixing up of symbolic
596 links). See docs for --rpfix and --norpfix flags of `wimlib-imagex
597 capture' and `wimlib-imagex apply'.
599 The performance of splitting and joining WIMs should be slightly
602 The LZX and XPRESS compression and decompression functions are now
603 exported from the library.
606 Improvements and bugfixes for the Windows build.
608 Added --strict-acls options.
610 Fixed the way that wimlib determines the order of images in the WIM.
613 Since wimlib can now be used on Windows, wimlib's implementation of
614 ImageX has been renamed to wimlib-imagex to avoid confusion with
615 Microsoft's implementation of ImageX, which would have the same file
616 name ("imagex.exe"). If you really don't like this you can pass the
617 --with-imagex-progname option to `configure' to choose a different name,
618 or even simply rename the binary yourself (but the former way will
619 configure the man pages to use the chosen name).
621 Various bugs fixed in the Windows build. Mainly to do with capturing
622 and restoring alternate data streams correctly in weird cases, and
623 requesting the correct privileges when opening files. Also added the
624 --noacls options to wimlib-imagex capture, append, and apply.
626 Windows build again: FindFirstStreamW() and FindNextStreamW() are now
627 dynamically loaded, so this may make the library compatible with Windows
628 XP (however, there may still be other problems).
631 Added experimental support for native Windows builds. Binaries can be
632 downloaded from the SourceForge page.
634 --source-list option added to `imagex capture' and `imagex append'.
636 Better support for different character encodings.
639 Storing UNIX file owners, groups, and modes in WIM images is now
640 possible using `imagex capture' with the --unix-data flag.
642 Minor bug fixes and documentation fixes.
645 NTFS capture: Fixed capturing duplicate reparse points.
647 NTFS capture: Capture first unnamed stream if there are more than one
648 (print warning instead of error).
650 Allow multiple test cases to execute concurrently (e.g. make -j2 check).
653 Added --arch switch to mkwinpeimg script to support getting AMD64 WinPE
656 Update to work with ntfs-3g version 2013.1.13.
659 Fixed truncating file to shorter but non-zero length on read-write
662 Various code cleanups and minor documentation fixes.
665 LZX and XPRESS decompression have received some additional optimizations
666 and should now be even faster. (Although, they were already pretty
667 fast--- much faster than typical I/O speeds.)
669 Fixed a bug introduced in v1.2.1 that would cause a directory tree
670 containing hard links to be captured incorrectly in some cases.
673 By default, unmounting a read-write mounted WIM with 'imagex unmount
674 --commit' will now change the WIM in-place without needing to write the
675 entire WIM again. Use 'imagex unmount --commit --rebuild' to get the
678 'imagex unmount' no longer has a hard-coded limit of 10 minutes to wait
679 for a response from the daemon servicing the mounted WIM. Instead,
680 every second 'imagex unmount' will check if the daemon is still alive,
681 and keep waiting if so, otherwise terminate with an error.
683 'imagex unmount --commit' on a read-write mounted WIM will now print
684 progress information regarding the writing of new or modified streams
685 the WIM, just like when capturing or appending a WIM.
687 A small change has been made to XPRESS compression and it should improve
688 the compression ratio slightly.
690 A change was made that may improve performance slightly when applying a
691 WIM image to a NTFS volume.
693 Microsoft has managed to introduce even more bugs into their software,
694 and now the WIMs for Windows 8 have incorrect (too low) reference counts
695 for some streams. This is unsafe because such streams can be removed
696 when they are in actuality still referenced in the WIM (perhaps by a
697 different image). wimlib will now work around this problem by fixing
698 the stream reference counts. This is only done when wimlib_delete_image() is
699 called ('imagex delete') or when wimlib_mount_image() is called with
700 WIMLIB_MOUNT_FLAG_READWRITE ('imagex mountrw'). Please note that this
701 requires reading the metadata for all images in the WIM, so this will
702 make these operations noticably slower on WIMs with multiple images.
704 Various other bugfixes.
707 Appending images to a WIM is now be done by default without re-building
708 the whole WIM. Use the --rebuild flag to get the old behavior (which
709 was to re-build the entire WIM when a new image is appended).
711 A new command `imagex optimize' is now available to manually re-build a
712 WIM that has wasted space due to repeated appends.
714 Progress information has been improved, and now arbitrary callback
715 functions can be used to show the progress of a WIM operation.
717 A possible bug with changing the bootable image of a WIM was fixed.
719 Some advisory locking is now done to prevent two processes from
720 modifying a WIM at the same time (but only in some cases). For example,
721 you cannot mount two images from a WIM read-write at the same time.
723 Some functions have been reorganized:
724 * wimlib_mount() renamed to wimlib_mount_image().
725 * wimlib_unmount() renamed to wimlib_unmount_image().
726 * wimlib_overwrite_xml_and_header() removed as
727 wimlib_overwrite() suffices now.
728 * wimlib_apply_image_to_ntfs_volume() removed as
729 wimlib_extract_image() suffices now.
730 * wimlib_add_image_from_ntfs_volume() removed as
731 * wimlib_add_image() suffices now.
733 Previously, the soname of libwim.so has been 0.0.0, despite many
734 interface changes. The soname is now updated to 1.0.0 and will now be
735 updated each release.
738 Resources will now be compressed using multiple threads by default.
739 (This applies to `imagex capture', `imagex append', and `imagex
742 Some performance improvements in mounted WIMs.
744 More progress information is shown when capturing a WIM.
747 Lots of minor fixes, code cleanups, and some documentation updates.
748 Nothing in particular is really noteworthy.
751 LZX and XPRESS compression improvements.
753 Fixed calculation of Directory Count, File Count, Total Bytes, and Hard
754 Link Bytes of the WIM.
757 Fixed bug when capturing NTFS file with multiple named data streams.
759 Internally, we are now using inode structures, even though these don't
760 appear literally in the WIM file. This simplifies some of the code
761 (mainly for WIM mounting) and likely fixed a few problems, although it
765 Fixed problem when exporting images from XPRESS to LZX compressed WIM or
769 Enough changes to call it version 1.0.0!
771 Capturing a WIM directly from a NTFS volume, and applying a WIM directly
772 to a NTFS volume, is now supported.
774 Hard links and symbolic links have much improved support. They are
775 supported for WIM capture, WIM application, and mounted WIMs (you can
776 even make them on read-write mounted WIMs).
778 Alternate data streams are now supported on mounted WIMs through an
779 xattr or a Windows-style stream interface. Also they are supported when
780 capturing a WIM from NTFS or applying a WIM to NTFS.
782 Split WIMs are better supported. You may now apply an image directly
783 from a split WIM, mount an image from a split WIM read-only, or export
784 an image from a split WIM.
786 Using a capture configuration file is now supported (but not fully yet).
788 SHA1 message digests are checked in more places, so we can make sure
789 applied and captured data is correct.
791 Man pages have been updated and consolidated.
794 Fixed segfault when unmounting read-only WIM.
797 Support for joining and splitting WIMs.
798 Also, security data is now preserved by default.
801 Can now build with older gcc and system headers, like on CentOS 5.
804 Fixed bug that made it impossible to overwrite files in read-write
808 Write byte-order mark before WIM XML data. (imagex.exe requires this to