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.
24 The way the "file count", "directory count", "total bytes", and "hard
25 link bytes" image statistics (stored in the WIM XML data) is calculated
26 has been slightly changed.
29 Improved the LZX compressor. It is now 15-20% faster than before and
30 provides a slightly better compression ratio.
32 Improved the LZMS compressor. It now provides a compression ratio
33 slightly better than WIMGAPI while still being faster and using slightly
36 The compression chunk size in solid resources, e.g. when capturing or
37 exporting a WIM file using the '--solid' option, now defaults to 64 MiB
38 (67108864 bytes) instead of 32 MiB (33554432 bytes). This provides a
39 better compression ratio and is the same value that WIMGAPI uses. The
40 memory usage is less than 50% higher than wimlib v1.7.4 and is slightly
41 lower than WIMGAPI's memory usage, but if it is too much, it is still
42 possible to choose a lower value, e.g. with the '--solid-chunk-size'
43 option to wimlib-imagex.
45 The '--chunk-size' and '--solid-chunk-size' options to wimlib-imagex now
46 accept the 'K', 'M', and 'G' suffixes.
48 Files are now sorted by name extension when creating a solid WIM file.
50 Fixed various issues related to capture/apply of EFS-encrypted files on
53 The file list printed by 'wimdir' is now sorted by the platform-specific
54 case sensitivity setting, rather than always case sensitively. This
55 also affects the library function wimlib_iterate_dir_tree().
57 On Windows, some error and warning messages have been improved.
60 The Windows binary distribution no longer contains third party DLLs.
61 These dependencies are instead compiled directly into the libwim DLL.
63 Added more fixes for wimlib on non-x86 architectures such as ARM.
65 Extracting files to a Windows PE in-memory filesystem no longer fails if
66 the target files do not yet exist.
68 Improved the performance of XPRESS compression and LZMS decompression.
70 Enabled SSSE3 accelerated SHA-1 computation in x86_64 Windows builds.
71 It will automatically be faster on newer Intel and AMD processors.
73 Removed the --with-imagex-progname and --enable-more-assertions
77 Fix for very slow export from solid WIM / ESD files.
79 Fix for LZX and LZMS algorithms on non-x86 architectures, such as ARM.
81 New progress message: WIMLIB_PROGRESS_MSG_HANDLE_ERROR. Applications
82 may use this to treat some types of errors as non-fatal.
84 The library now permits making in-memory changes to a WIMStruct backed
85 by a read-only WIM file.
87 Fixes for "WIMBoot" extraction mode (Windows only):
89 When not using the WOF driver, extraction no longer fails if the
90 disk containing the WIM file has too many partitions.
92 When matching patterns in [PrepopulateList], all hard links of
93 each file are now considered.
95 The system registry files are now automatically treated as being
98 Added a hack to try to work around an intermittent bug in
99 Microsoft's WOF (Windows Overlay Filesystem) driver.
102 Made more improvements to the XPRESS, LZX, and LZMS compressors.
104 A number of improvements to the Windows port:
106 Fixes for setting short filenames.
108 Faster "WIMBoot" extraction.
110 Updated and slimmed down the dependent DLLs.
112 ACL inheritence bits are now restored.
114 Mandatory integrity labels are now backed up and restored.
116 Added a workaround for an issue where in rare cases, wimlib could create
117 a compressed data stream that could not be read correctly by Windows
118 after an extraction in "WIMBoot" mode.
121 Added file count progress data for
122 WIMLIB_PROGRESS_MSG_EXTRACT_FILE_STRUCTURE and
123 WIMLIB_PROGRESS_MSG_EXTRACT_METADATA.
125 Added support for testing file exclusions via the user-provided
128 Some documentation improvements.
130 Made some clarifications to the license text in the COPYING file.
133 Made more improvements to the XPRESS, LZX, and LZMS compressors.
135 The default compression mode for wimcapture is now LZX compression in
136 its default mode, which is the same as '--compress=maximum'.
138 You can now specify an optional integer compression level to the
139 '--compress' option; e.g. '--compress=lzx:75'.
141 Made a minor change to the LZMS compressor and decompressor to fix an
142 incompatibility with the Microsoft implementation. In the unlikely
143 event that you created an LZMS-compressed WIM with wimlib v1.7.0 or
144 earlier and a checksum error is reported when extracting files from it
145 with wimlib v1.7.1, decompress it with v1.7.0 then compress it with
148 Added 'verify' subcommand to wimlib-imagex.
150 Notable library changes:
152 Custom compressor parameters have been removed from the library
153 in favor of the simpler level-based API.
155 Decompressor parameters have been removed entirely.
157 Library users can now specify a custom file for warning and
158 error messages to be sent to, rather than the default of
161 New progress messages:
162 WIMLIB_PROGRESS_MSG_EXTRACT_FILE_STRUCTURE,
163 WIMLIB_PROGRESS_MSG_EXTRACT_METADATA.
165 New function: wimlib_verify_wim().
168 Improved compression, decompression, and extraction performance.
170 Improved compatibility with version 3584 WIM / ESD files:
171 - Add support for reading and writing multiple solid blocks per
172 archive, which WIMGAPI/DISM can create when appending an image.
173 - Correctly create solid blocks larger than 4 GiB.
175 'add' commands passed to wimupdate will now replace existing
176 nondirectory files by default. Use the --no-replace option to get the
179 The license for the library now contains an exception that allows using
180 it under the LGPL. See the COPYING file for details.
182 In reparse-point fixup mode (the default for capture), symbolic links
183 and junctions that point outside the tree being captured are no longer
184 excluded from capture.
186 Added support for "WIMBoot" capture and extraction. See the
187 documentation for the new '--wimboot' option to wimcapture and wimapply
188 for more information.
190 On UNIX-like systems, you can now backup and restore device nodes, named
191 pipes, and sockets. In addition, 32-bit user and group IDs are now
194 The way that UNIX data is stored in WIM files has been changed. If you
195 captured any WIMs with the --unix-data option, to upgrade them you'll
196 need to apply them with --unix-data using wimlib-imagex v1.6.2, then
197 re-capture them with --unix-data using this version.
199 wimlib now understands tagged metadata items, such as object IDs, that
200 can be stored in WIM directory entries.
202 Removed the --hardlink and --symlink options to wimapply, since I don't
203 think they are too useful and they got in the way of improving the code.
205 WIMs will now retain their GUIDs when rebuilt (e.g. with wimoptimize).
207 The 'mkwinpeimg' script now supports writing the ISO image to standard
210 The <ARCH> element in WIM XML data is now exported correctly.
212 On Windows, sparse file attributes are no longer set on extracted files.
213 Oddly enough, this actually saves disk space in some cases.
215 On UNIX, configuring with --disable-xattr or --enable-xattr is no longer
216 supported. Mounting WIM images now always requires extended attribute
217 support. Use --without-fuse to disable support for mounting WIM images;
218 this will also disable the need for extended attribute support.
220 Configuring with --enable-ssse3-sha1 now works correctly.
222 The shared library version has been bumped up. The main
223 incompatibilities are:
225 - WIMLIB_COMPRESSION_TYPE_XPRESS is now 1 and
226 WIMLIB_COMPRESSION_TYPE_LZX is now 2 (so it's the same as
229 - User-provided progress functions are now registered using a
230 separate function, wimlib_register_progress_function(). The
231 'progress_func' argument to many functions no longer exists.
233 - The return value from user-provided progress functions is now
236 - A context argument has been added to the prototype of
237 user-provided progress functions.
239 - 'struct wimlib_capture_config' has been removed. The library
240 now takes the path to the configuration file directly. This
241 affects wimlib_add_image(), wimlib_add_image_multisource(),
242 and wimlib_update_image(). However, a NULL value passed in
243 the argument retains the same meaning.
245 - Removed deprecated functions: some (de)compression functions,
246 wimlib_extract_files(), and wimlib_print_metadata().
248 - Removed extraction flags: WIMLIB_EXTRACT_FLAG_HARDLINK,
249 WIMLIB_EXTRACT_FLAG_SYMLINK, WIMLIB_EXTRACT_FLAG_FILE_ORDER,
250 and WIMLIB_EXTRACT_FLAG_SEQUENTIAL.
252 - Removed some progress messages:
253 WIMLIB_PROGRESS_MSG_APPLY_TIMESTAMPS,
254 WIMLIB_PROGRESS_MSG_EXTRACT_DIR_STRUCTURE_BEGIN,
255 WIMLIB_PROGRESS_MSG_EXTRACT_DIR_STRUCTURE_END. Numbering
258 - Removed some error codes. Numbering stays the same.
260 - Replaced WIMLIB_UNMOUNT_FLAG_LAZY with
261 WIMLIB_UNMOUNT_FLAG_FORCE.
263 - WIM paths passed to progress functions now have a leading
267 Case-insensitive comparisons of strings (e.g. filenames) containing
268 UTF-16 codepoints above 32767 are now done correctly.
270 Fixed build failure on Mac OS X.
272 wimunmount now provides the '--new-image' option to cause changes to a
273 read-write mounted image to be committed as a new image rather than as
274 an update of the mounted image. (The corresponding new library flag is
275 WIMLIB_UNMOUNT_FLAG_NEW_IMAGE.)
277 The LZMS ("recovery") compression chunk size, or "dictionary size", may
278 now be up to 1 GiB (1,073,741,824 bytes).
280 The performance of LZX ("maximum") and LZMS ("recovery") compression
281 with large chunk sizes has been slightly improved.
284 Stored files with size exactly 4 GiB (4,294,967,296 bytes) are now
285 decompressed correctly.
287 Fixed a bug in the LZX compressor introduced in v1.5.3. The bug
288 occurred in an unlikely case, and due to validity checks it did not
289 affect successfully created archives.
291 Fixed a minor compatibility issue with the LZMS compressor and
292 decompressor. This is *not* the default compression type and was only
293 introduced in v1.6.0. In the unlikely event that you created an
294 LZMS-compressed WIM with v1.6.0 and a checksum error is reported when
295 applying it with v1.6.1, decompress it with v1.6.0 then compress it with
298 Memory usage for LZMS and LZX compression has been decreased.
300 wimextract now allows wildcard characters in paths specified on the
301 command line. Also, the '--strict-wildcards' option has been removed
302 and replaced with the inverse option '--nullglob'. See the
303 documentation for wimextract for more details and changes.
305 The wimlib_extract_files() function is now considered deprecated in
306 favor of wimlib_extract_paths().
308 Fixed more permissions problems when extracting files on Windows.
310 A new '--no-attributes' option has been added to wimapply and
311 wimextract. The library flag is WIMLIB_EXTRACT_FLAG_NO_ATTRIBUTES.
313 The default chunk size is now set correctly when changing the
314 compression type of a WIM, for example with 'wimoptimize'.
316 The '--metadata' option to wiminfo has been replaced with the
317 '--detailed' option to wimdir.
319 In relevant wimlib-imagex commands, '--solid' may now be used as an
320 alias for '--pack-streams'.
323 Support for extracting and updating the new version 3584 WIMs has been
324 added. These WIMs typically pack many streams ("files") together into a
325 single compressed resource, thereby saving space. This degrades the
326 performance of random access (such as that which occurs on a mounted
327 image), but optimizations have been implemented for extraction. These
328 new WIM files also typically use a new compression format (LZMS), which
329 is similar to LZMA and can offer a better compression ratio than LZX.
330 These new WIM files can be created using `wimcapture' with
331 the '--compress=lzms --pack-streams' options. Note: this new WIM format
332 is used by the Windows 8 web downloader, but important segments of the
333 raw '.esd' files are encrypted, so wimlib will not be able to extract
334 such files until they are first decrypted.
336 wimlib now supports extracting files and directories from a WIM image
337 based on a "listfile" that itself contains the list of paths to extract.
338 For `wimextract', the syntax is to specify @LISTFILE instead of a PATH,
339 and for the library itself, the new APIs are wimlib_extract_pathlist()
340 and wimlib_extract_paths(). Path globs containing wildcard characters
343 For searching WIM files, wimlib now has configurable case sensitivity.
344 The default on Windows is still case-insensitive and the default on
345 UNIX-like systems is still case-sensitive, but this can be overridden
346 on either platform through flags to wimlib_global_init(). For
347 `wimlib-imagex', the environmental variable WIMLIB_IMAGEX_IGNORE_CASE
348 can be set to 1 or 0 for case-insensitive or case-sensitive behavior,
351 Support for compression chunk sizes greater than the default of 32768
352 bytes has been added. A larger chunk size typically results in a better
353 compression ratio. However, the MS implementation is seemingly not
354 compatible with all chunk sizes, especially for LZX compression, so the
355 defaults remain unchanged, with the exception of the new LZMS-compressed
356 WIMs, which use a larger chunk size by default.
358 The compression/decompression API exported by wimlib has been changed.
359 Now one set of functions handles all supported compression formats.
361 `wimcapture' and `wimappend' will now display the progress of scanning
362 the directory tree to capture, in addition to the progress of writing
363 data to the WIM. The '--verbose' option no longer does anything. The
364 library API change for this is the addition of several members to
365 `struct wimlib_progress_info_scan' available to progress callbacks.
367 `mkwinpeimg' now correctly handles the '--start-script' option when the
368 start script is not in the working directory.
370 Sequential extraction, previously requested by using
371 WIMLIB_EXTRACT_FLAG_SEQUENTIAL, is now the default.
372 WIMLIB_EXTRACT_FLAG_FILE_ORDER can be used to get the old default
373 behavior (extract in file order).
376 The new LZX compressor added in v1.5.2 has been improved and is now
377 enabled by default, except when `wimcapture' or `wimappend' is run
378 *without* the '--compress' option, in which case the faster LZX
379 compressor is used (the same as before). This behavior is reasonably
380 consistent with ImageX which actually uses "fast" (XPRESS) compression
381 by default. In those cases, use '--compress=maximum' to explicitly
382 capture a WIM image using the new (slower but better) LZX compressor.
384 The '--compress-slow' option still exists to `wimlib-imagex optimize',
385 but its new behavior is to tweak the new LZX compressor even more to
386 produce an even better compression ratio at the cost of more time spent
389 `wimlib-imagex optimize' now supports the '--compress=TYPE' option,
390 which recompresses the WIM file using the specified compression TYPE.
391 The new library API function used for this is
392 wimlib_set_output_compression_type().
394 Added the wimlib_get_xml_data() function to allow library clients to
395 easily retrieve the raw XML data from a WIM file if needed.
397 Fixed a bug that could cause an error code to be incorrectly returned
398 when writing XML data containing a <WINDOWS> element.
400 Mounted WIM images will now correctly show the default file stream even
401 if appears in the alternate data stream entries of the corresponding WIM
405 Added a new experimental LZX compressor which can be enabled by passing
406 '--compress-slow' to `wimlib-imagex capture' or `wimlib-imagex
407 optimize'. (The latter is only applicable if the WIM is already
408 LZX-compressed and the '--recompress' option is also given.) The
409 experimental compressor is much slower but compresses the data slightly
410 more --- currently usually to within a fraction of a percent of the
411 results from WIMGAPI/ImageX.
413 A workaround has been added for compatibility with versions of WinPE
414 that interpret alternate data stream entries in the boot WIM
417 An alignment bug that caused a crash in the LZX decompressor on some
420 wimlib now attempts to clear the WIM_HDR_FLAG_WRITE_IN_PROGRESS flag in
421 the WIM header when restoring the previous state of a WIM it failed to
424 Added a workaround to avoid an access denied error on Windows when
425 replacing a WIM file that another process has opened.
428 wimlib can now open WinPE WIMs from WAIK v2.1, which had a quirk that
429 needed to be handled.
431 A bug in the interpretation of negative IMAGE indices in the
432 --update-of=[WIMFILE:]IMAGE option to `wimlib-imagex capture' and
433 `wimlib-imagex append' has been fixed.
435 A workaround has been added to successfully apply security descriptors
436 with empty DACLs when the NTFS-3g apply mode is being used with NTFS-3g
437 2013.1.13 or earlier.
439 `wimlib-imagex capture' can now accept the '--delta-from' option
443 Added support for "pipable" WIMs. Pipable WIMs allow capturing images
444 to standard output and applying images from standard input, but they are
445 not compatible with Microsoft's software and are not created by default.
446 See the documentation for --pipable flag of `wimlib-imagex capture' for
449 To better support incremental backups, added support for declaring an
450 image as a modified form of another image. See the documentation for
451 the '--update-of' option of `wimlib-imagex append' and `wimlib-imagex
454 Added supported for "delta" WIMs. See the documentation for the
455 '--delta-from' option of `wimlib-imagex capture'.
457 The library support for managing split WIMs has been changed to support
458 other arrangements, such as delta WIMs, and be easier to use. This
459 change is visible in `wimlib-imagex', which also can now accept the
460 '--ref' option multiple times, and also now supports "delta" WIMs as
463 wimlib now preserves WIM integrity tables by default, even if
464 WIMLIB_WRITE_FLAG_CHECK_INTEGRITY is not specified. This changes the
465 behavior of `wimlib-imagex' whenever the WIM being operated on contains
466 an integrity table and the '--check' option is not specified.
468 `wimlib-imagex capture' now creates LZX-compressed WIMs by default
469 (when --compress is not specified). This provides the best compression
470 ratio by default, which is usually what is desired, at a cost of some
473 `wimlib-imagex' now supports being invoked as wimCOMMAND, where COMMAND
474 is the command as in `wimlib-imagex COMMAND'; for example, it can be
475 invoked as `wimapply' as an alternative to `wimlib-imagex apply'. The
476 appropriate hard links are created in UNIX installations of
477 `wimlib-imagex', while for the Windows distribution of `wimlib-imagex',
478 batch files that emulate this behavior are generated.
480 Security descriptors are now extracted correctly on Windows.
482 Fixed archiving DOS names in NTFS-3g capture mode.
484 The extraction code has been rewritten and it will now be easier to
485 support new features on all supported backends (currently Win32, UNIX,
486 and NTFS-3g). For example, hard-linked extraction mode (--hardlink) is
487 now supported on all backends, not just UNIX.
489 `mkwinpeimg' now supports grabbing files from the WAIK supplement rather
490 than the WAIK itself.
492 wimlib_global_init() now, by default, attempts to acquire additional
493 privileges on Windows, so library clients need not do this.
495 This update bumps the shared library version number up to 9, since it is
496 not binary compatibible with previous releases.
499 Fixed bug in `wimlib-imagex export' that made it impossible to export an
500 image from a WIM that is readonly at the filesystem level.
502 Return error code rather than segfaulting when trying to list files from
503 a non-first part of a split WIM.
505 Joining a WIM will now preserve the RP_FIX and READONLY flags.
508 On Windows, paths given to wimlib-imagex are now treated case
511 Improved behavior regarding invalid filenames; in particular, on
512 Windows, wimlib-imagex will, when extracting, now omit (with an option
513 to override this default) filenames differing only in case, or filenames
514 containing characters not valid on Windows.
516 On Windows, wimlib now supports capturing and extracting long paths
517 (longer than the so-called MAX_PATH).
519 On Windows, `wimlib-imagex update' now acquires proper privileges when
520 running as an Administrator.
522 `wimlib-imagex update' will now complain if no image is specified when
523 trying to update a multi-image WIM.
525 `wimlib-imagex update' now supports specifying a single update command
526 directly on the command line using the --command option.
528 wimlib-imagex will now choose different units for progress messages,
529 depending on the amount of data that needs to be processed.
531 `wimlib-imagex append' will now generate a unique WIM image name if no
532 name is specified and the defaulted name already exists in the WIM.
534 wimlib now allows you to create unnamed WIM images, which can then only
535 be referred to by index.
537 wimlib now allows you to explicitly declare you want write access to a
538 WIM by providing the WIMLIB_OPEN_FLAG_WRITE_ACCESS flag to
541 wimlib now respects the WIM_HDR_FLAG_READONLY flag when set in the WIM
544 Progress callbacks have been added to wimlib's wimlib_update_image()
547 Added wimlib_get_wim_info(), wimlib_set_wim_info(),
548 wimlib_iterate_dir_tree(), and wimlib_iterate_lookup_table() functions
551 NTFS-3g capture now only warns about two conditions previously treated
554 Fixed a couple issues with using wimlib-imagex on UDF filesystems on
557 wimlib now correctly detects and returns an error when reading a WIM
558 image with a cyclic directory structure. (Fun fact: such a WIM will
559 crash Microsoft's software.)
562 Added new "extract" and "update" subcommands to wimlib-imagex, along
563 with associated APIs in the library. These commands are intended mainly
564 for Windows use but can be used on UNIX as well.
566 Many documentation improvements.
568 Fixed a bug in the Windows build where relative symbolic links were not
569 captured in reparse-point fixup mode.
571 Fixed a bug in the Windows build where file handles were left open to
572 the WIM file, causing `wimlib_imagex optimize' to fail in some cases.
574 Fixed a bug in the Windows build of wimlib-imagex where globbing
575 split-WIM parts could cause the program to crash.
577 Fixed a bug where the creation time of WIM images would be shown instead
578 of the last modification time.
580 With the Windows build it is now possible to restore a WIM containing
581 symbolic links as a non-Administrator; however you will receive warnings
582 about not being able to extract the symbolic links.
585 Capturing a WIM image should now be significantly faster in most cases
586 due to improved use of the operating system's cache and avoiding reading
587 files twice whenever possible.
589 The Windows build should now work on Windows XP.
591 The Windows build now supports capturing and restoring hidden,
592 compressed, sparse, and encrypted files.
594 The Windows build now supports capturing and applying WIM images from
595 filesystems other than NTFS (with some reduced functionality).
597 The Windows build now extracts short names correctly.
599 Added support for "reparse-point" fixups (i.e. fixing up of symbolic
600 links). See docs for --rpfix and --norpfix flags of `wimlib-imagex
601 capture' and `wimlib-imagex apply'.
603 The performance of splitting and joining WIMs should be slightly
606 The LZX and XPRESS compression and decompression functions are now
607 exported from the library.
610 Improvements and bugfixes for the Windows build.
612 Added --strict-acls options.
614 Fixed the way that wimlib determines the order of images in the WIM.
617 Since wimlib can now be used on Windows, wimlib's implementation of
618 ImageX has been renamed to wimlib-imagex to avoid confusion with
619 Microsoft's implementation of ImageX, which would have the same file
620 name ("imagex.exe"). If you really don't like this you can pass the
621 --with-imagex-progname option to `configure' to choose a different name,
622 or even simply rename the binary yourself (but the former way will
623 configure the man pages to use the chosen name).
625 Various bugs fixed in the Windows build. Mainly to do with capturing
626 and restoring alternate data streams correctly in weird cases, and
627 requesting the correct privileges when opening files. Also added the
628 --noacls options to wimlib-imagex capture, append, and apply.
630 Windows build again: FindFirstStreamW() and FindNextStreamW() are now
631 dynamically loaded, so this may make the library compatible with Windows
632 XP (however, there may still be other problems).
635 Added experimental support for native Windows builds. Binaries can be
636 downloaded from the SourceForge page.
638 --source-list option added to `imagex capture' and `imagex append'.
640 Better support for different character encodings.
643 Storing UNIX file owners, groups, and modes in WIM images is now
644 possible using `imagex capture' with the --unix-data flag.
646 Minor bug fixes and documentation fixes.
649 NTFS capture: Fixed capturing duplicate reparse points.
651 NTFS capture: Capture first unnamed stream if there are more than one
652 (print warning instead of error).
654 Allow multiple test cases to execute concurrently (e.g. make -j2 check).
657 Added --arch switch to mkwinpeimg script to support getting AMD64 WinPE
660 Update to work with ntfs-3g version 2013.1.13.
663 Fixed truncating file to shorter but non-zero length on read-write
666 Various code cleanups and minor documentation fixes.
669 LZX and XPRESS decompression have received some additional optimizations
670 and should now be even faster. (Although, they were already pretty
671 fast--- much faster than typical I/O speeds.)
673 Fixed a bug introduced in v1.2.1 that would cause a directory tree
674 containing hard links to be captured incorrectly in some cases.
677 By default, unmounting a read-write mounted WIM with 'imagex unmount
678 --commit' will now change the WIM in-place without needing to write the
679 entire WIM again. Use 'imagex unmount --commit --rebuild' to get the
682 'imagex unmount' no longer has a hard-coded limit of 10 minutes to wait
683 for a response from the daemon servicing the mounted WIM. Instead,
684 every second 'imagex unmount' will check if the daemon is still alive,
685 and keep waiting if so, otherwise terminate with an error.
687 'imagex unmount --commit' on a read-write mounted WIM will now print
688 progress information regarding the writing of new or modified streams
689 the WIM, just like when capturing or appending a WIM.
691 A small change has been made to XPRESS compression and it should improve
692 the compression ratio slightly.
694 A change was made that may improve performance slightly when applying a
695 WIM image to a NTFS volume.
697 Microsoft has managed to introduce even more bugs into their software,
698 and now the WIMs for Windows 8 have incorrect (too low) reference counts
699 for some streams. This is unsafe because such streams can be removed
700 when they are in actuality still referenced in the WIM (perhaps by a
701 different image). wimlib will now work around this problem by fixing
702 the stream reference counts. This is only done when wimlib_delete_image() is
703 called ('imagex delete') or when wimlib_mount_image() is called with
704 WIMLIB_MOUNT_FLAG_READWRITE ('imagex mountrw'). Please note that this
705 requires reading the metadata for all images in the WIM, so this will
706 make these operations noticably slower on WIMs with multiple images.
708 Various other bugfixes.
711 Appending images to a WIM is now be done by default without re-building
712 the whole WIM. Use the --rebuild flag to get the old behavior (which
713 was to re-build the entire WIM when a new image is appended).
715 A new command `imagex optimize' is now available to manually re-build a
716 WIM that has wasted space due to repeated appends.
718 Progress information has been improved, and now arbitrary callback
719 functions can be used to show the progress of a WIM operation.
721 A possible bug with changing the bootable image of a WIM was fixed.
723 Some advisory locking is now done to prevent two processes from
724 modifying a WIM at the same time (but only in some cases). For example,
725 you cannot mount two images from a WIM read-write at the same time.
727 Some functions have been reorganized:
728 * wimlib_mount() renamed to wimlib_mount_image().
729 * wimlib_unmount() renamed to wimlib_unmount_image().
730 * wimlib_overwrite_xml_and_header() removed as
731 wimlib_overwrite() suffices now.
732 * wimlib_apply_image_to_ntfs_volume() removed as
733 wimlib_extract_image() suffices now.
734 * wimlib_add_image_from_ntfs_volume() removed as
735 * wimlib_add_image() suffices now.
737 Previously, the soname of libwim.so has been 0.0.0, despite many
738 interface changes. The soname is now updated to 1.0.0 and will now be
739 updated each release.
742 Resources will now be compressed using multiple threads by default.
743 (This applies to `imagex capture', `imagex append', and `imagex
746 Some performance improvements in mounted WIMs.
748 More progress information is shown when capturing a WIM.
751 Lots of minor fixes, code cleanups, and some documentation updates.
752 Nothing in particular is really noteworthy.
755 LZX and XPRESS compression improvements.
757 Fixed calculation of Directory Count, File Count, Total Bytes, and Hard
758 Link Bytes of the WIM.
761 Fixed bug when capturing NTFS file with multiple named data streams.
763 Internally, we are now using inode structures, even though these don't
764 appear literally in the WIM file. This simplifies some of the code
765 (mainly for WIM mounting) and likely fixed a few problems, although it
769 Fixed problem when exporting images from XPRESS to LZX compressed WIM or
773 Enough changes to call it version 1.0.0!
775 Capturing a WIM directly from a NTFS volume, and applying a WIM directly
776 to a NTFS volume, is now supported.
778 Hard links and symbolic links have much improved support. They are
779 supported for WIM capture, WIM application, and mounted WIMs (you can
780 even make them on read-write mounted WIMs).
782 Alternate data streams are now supported on mounted WIMs through an
783 xattr or a Windows-style stream interface. Also they are supported when
784 capturing a WIM from NTFS or applying a WIM to NTFS.
786 Split WIMs are better supported. You may now apply an image directly
787 from a split WIM, mount an image from a split WIM read-only, or export
788 an image from a split WIM.
790 Using a capture configuration file is now supported (but not fully yet).
792 SHA1 message digests are checked in more places, so we can make sure
793 applied and captured data is correct.
795 Man pages have been updated and consolidated.
798 Fixed segfault when unmounting read-only WIM.
801 Support for joining and splitting WIMs.
802 Also, security data is now preserved by default.
805 Can now build with older gcc and system headers, like on CentOS 5.
808 Fixed bug that made it impossible to overwrite files in read-write
812 Write byte-order mark before WIM XML data. (imagex.exe requires this to