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.
28 In mounted WIM images, the disk usage provided for each file (st_blocks)
29 is now the compressed size rather than the uncompressed size.
31 The performance of the NTFS-3g and Windows capture modes has been
34 On UNIX-like systems, symbolic links whose targets contain the backslash
35 character are now handled correctly (losslessly).
38 Improved the LZX compressor. It is now 15-20% faster than before and
39 provides a slightly better compression ratio.
41 Improved the LZMS compressor. It now provides a compression ratio
42 slightly better than WIMGAPI while still being faster and using slightly
45 The compression chunk size in solid resources, e.g. when capturing or
46 exporting a WIM file using the '--solid' option, now defaults to 64 MiB
47 (67108864 bytes) instead of 32 MiB (33554432 bytes). This provides a
48 better compression ratio and is the same value that WIMGAPI uses. The
49 memory usage is less than 50% higher than wimlib v1.7.4 and is slightly
50 lower than WIMGAPI's memory usage, but if it is too much, it is still
51 possible to choose a lower value, e.g. with the '--solid-chunk-size'
52 option to wimlib-imagex.
54 The '--chunk-size' and '--solid-chunk-size' options to wimlib-imagex now
55 accept the 'K', 'M', and 'G' suffixes.
57 Files are now sorted by name extension when creating a solid WIM file.
59 Fixed various issues related to capture/apply of EFS-encrypted files on
62 The file list printed by 'wimdir' is now sorted by the platform-specific
63 case sensitivity setting, rather than always case sensitively. This
64 also affects the library function wimlib_iterate_dir_tree().
66 On Windows, some error and warning messages have been improved.
69 The Windows binary distribution no longer contains third party DLLs.
70 These dependencies are instead compiled directly into the libwim DLL.
72 Added more fixes for wimlib on non-x86 architectures such as ARM.
74 Extracting files to a Windows PE in-memory filesystem no longer fails if
75 the target files do not yet exist.
77 Improved the performance of XPRESS compression and LZMS decompression.
79 Enabled SSSE3 accelerated SHA-1 computation in x86_64 Windows builds.
80 It will automatically be faster on newer Intel and AMD processors.
82 Removed the --with-imagex-progname and --enable-more-assertions
86 Fix for very slow export from solid WIM / ESD files.
88 Fix for LZX and LZMS algorithms on non-x86 architectures, such as ARM.
90 New progress message: WIMLIB_PROGRESS_MSG_HANDLE_ERROR. Applications
91 may use this to treat some types of errors as non-fatal.
93 The library now permits making in-memory changes to a WIMStruct backed
94 by a read-only WIM file.
96 Fixes for "WIMBoot" extraction mode (Windows only):
98 When not using the WOF driver, extraction no longer fails if the
99 disk containing the WIM file has too many partitions.
101 When matching patterns in [PrepopulateList], all hard links of
102 each file are now considered.
104 The system registry files are now automatically treated as being
105 in [PrepopulateList].
107 Added a hack to try to work around an intermittent bug in
108 Microsoft's WOF (Windows Overlay Filesystem) driver.
111 Made more improvements to the XPRESS, LZX, and LZMS compressors.
113 A number of improvements to the Windows port:
115 Fixes for setting short filenames.
117 Faster "WIMBoot" extraction.
119 Updated and slimmed down the dependent DLLs.
121 ACL inheritence bits are now restored.
123 Mandatory integrity labels are now backed up and restored.
125 Added a workaround for an issue where in rare cases, wimlib could create
126 a compressed data stream that could not be read correctly by Windows
127 after an extraction in "WIMBoot" mode.
130 Added file count progress data for
131 WIMLIB_PROGRESS_MSG_EXTRACT_FILE_STRUCTURE and
132 WIMLIB_PROGRESS_MSG_EXTRACT_METADATA.
134 Added support for testing file exclusions via the user-provided
137 Some documentation improvements.
139 Made some clarifications to the license text in the COPYING file.
142 Made more improvements to the XPRESS, LZX, and LZMS compressors.
144 The default compression mode for wimcapture is now LZX compression in
145 its default mode, which is the same as '--compress=maximum'.
147 You can now specify an optional integer compression level to the
148 '--compress' option; e.g. '--compress=lzx:75'.
150 Made a minor change to the LZMS compressor and decompressor to fix an
151 incompatibility with the Microsoft implementation. In the unlikely
152 event that you created an LZMS-compressed WIM with wimlib v1.7.0 or
153 earlier and a checksum error is reported when extracting files from it
154 with wimlib v1.7.1, decompress it with v1.7.0 then compress it with
157 Added 'verify' subcommand to wimlib-imagex.
159 Notable library changes:
161 Custom compressor parameters have been removed from the library
162 in favor of the simpler level-based API.
164 Decompressor parameters have been removed entirely.
166 Library users can now specify a custom file for warning and
167 error messages to be sent to, rather than the default of
170 New progress messages:
171 WIMLIB_PROGRESS_MSG_EXTRACT_FILE_STRUCTURE,
172 WIMLIB_PROGRESS_MSG_EXTRACT_METADATA.
174 New function: wimlib_verify_wim().
177 Improved compression, decompression, and extraction performance.
179 Improved compatibility with version 3584 WIM / ESD files:
180 - Add support for reading and writing multiple solid blocks per
181 archive, which WIMGAPI/DISM can create when appending an image.
182 - Correctly create solid blocks larger than 4 GiB.
184 'add' commands passed to wimupdate will now replace existing
185 nondirectory files by default. Use the --no-replace option to get the
188 The license for the library now contains an exception that allows using
189 it under the LGPL. See the COPYING file for details.
191 In reparse-point fixup mode (the default for capture), symbolic links
192 and junctions that point outside the tree being captured are no longer
193 excluded from capture.
195 Added support for "WIMBoot" capture and extraction. See the
196 documentation for the new '--wimboot' option to wimcapture and wimapply
197 for more information.
199 On UNIX-like systems, you can now backup and restore device nodes, named
200 pipes, and sockets. In addition, 32-bit user and group IDs are now
203 The way that UNIX data is stored in WIM files has been changed. If you
204 captured any WIMs with the --unix-data option, to upgrade them you'll
205 need to apply them with --unix-data using wimlib-imagex v1.6.2, then
206 re-capture them with --unix-data using this version.
208 wimlib now understands tagged metadata items, such as object IDs, that
209 can be stored in WIM directory entries.
211 Removed the --hardlink and --symlink options to wimapply, since I don't
212 think they are too useful and they got in the way of improving the code.
214 WIMs will now retain their GUIDs when rebuilt (e.g. with wimoptimize).
216 The 'mkwinpeimg' script now supports writing the ISO image to standard
219 The <ARCH> element in WIM XML data is now exported correctly.
221 On Windows, sparse file attributes are no longer set on extracted files.
222 Oddly enough, this actually saves disk space in some cases.
224 On UNIX, configuring with --disable-xattr or --enable-xattr is no longer
225 supported. Mounting WIM images now always requires extended attribute
226 support. Use --without-fuse to disable support for mounting WIM images;
227 this will also disable the need for extended attribute support.
229 Configuring with --enable-ssse3-sha1 now works correctly.
231 The shared library version has been bumped up. The main
232 incompatibilities are:
234 - WIMLIB_COMPRESSION_TYPE_XPRESS is now 1 and
235 WIMLIB_COMPRESSION_TYPE_LZX is now 2 (so it's the same as
238 - User-provided progress functions are now registered using a
239 separate function, wimlib_register_progress_function(). The
240 'progress_func' argument to many functions no longer exists.
242 - The return value from user-provided progress functions is now
245 - A context argument has been added to the prototype of
246 user-provided progress functions.
248 - 'struct wimlib_capture_config' has been removed. The library
249 now takes the path to the configuration file directly. This
250 affects wimlib_add_image(), wimlib_add_image_multisource(),
251 and wimlib_update_image(). However, a NULL value passed in
252 the argument retains the same meaning.
254 - Removed deprecated functions: some (de)compression functions,
255 wimlib_extract_files(), and wimlib_print_metadata().
257 - Removed extraction flags: WIMLIB_EXTRACT_FLAG_HARDLINK,
258 WIMLIB_EXTRACT_FLAG_SYMLINK, WIMLIB_EXTRACT_FLAG_FILE_ORDER,
259 and WIMLIB_EXTRACT_FLAG_SEQUENTIAL.
261 - Removed some progress messages:
262 WIMLIB_PROGRESS_MSG_APPLY_TIMESTAMPS,
263 WIMLIB_PROGRESS_MSG_EXTRACT_DIR_STRUCTURE_BEGIN,
264 WIMLIB_PROGRESS_MSG_EXTRACT_DIR_STRUCTURE_END. Numbering
267 - Removed some error codes. Numbering stays the same.
269 - Replaced WIMLIB_UNMOUNT_FLAG_LAZY with
270 WIMLIB_UNMOUNT_FLAG_FORCE.
272 - WIM paths passed to progress functions now have a leading
276 Case-insensitive comparisons of strings (e.g. filenames) containing
277 UTF-16 codepoints above 32767 are now done correctly.
279 Fixed build failure on Mac OS X.
281 wimunmount now provides the '--new-image' option to cause changes to a
282 read-write mounted image to be committed as a new image rather than as
283 an update of the mounted image. (The corresponding new library flag is
284 WIMLIB_UNMOUNT_FLAG_NEW_IMAGE.)
286 The LZMS ("recovery") compression chunk size, or "dictionary size", may
287 now be up to 1 GiB (1,073,741,824 bytes).
289 The performance of LZX ("maximum") and LZMS ("recovery") compression
290 with large chunk sizes has been slightly improved.
293 Stored files with size exactly 4 GiB (4,294,967,296 bytes) are now
294 decompressed correctly.
296 Fixed a bug in the LZX compressor introduced in v1.5.3. The bug
297 occurred in an unlikely case, and due to validity checks it did not
298 affect successfully created archives.
300 Fixed a minor compatibility issue with the LZMS compressor and
301 decompressor. This is *not* the default compression type and was only
302 introduced in v1.6.0. In the unlikely event that you created an
303 LZMS-compressed WIM with v1.6.0 and a checksum error is reported when
304 applying it with v1.6.1, decompress it with v1.6.0 then compress it with
307 Memory usage for LZMS and LZX compression has been decreased.
309 wimextract now allows wildcard characters in paths specified on the
310 command line. Also, the '--strict-wildcards' option has been removed
311 and replaced with the inverse option '--nullglob'. See the
312 documentation for wimextract for more details and changes.
314 The wimlib_extract_files() function is now considered deprecated in
315 favor of wimlib_extract_paths().
317 Fixed more permissions problems when extracting files on Windows.
319 A new '--no-attributes' option has been added to wimapply and
320 wimextract. The library flag is WIMLIB_EXTRACT_FLAG_NO_ATTRIBUTES.
322 The default chunk size is now set correctly when changing the
323 compression type of a WIM, for example with 'wimoptimize'.
325 The '--metadata' option to wiminfo has been replaced with the
326 '--detailed' option to wimdir.
328 In relevant wimlib-imagex commands, '--solid' may now be used as an
329 alias for '--pack-streams'.
332 Support for extracting and updating the new version 3584 WIMs has been
333 added. These WIMs typically pack many streams ("files") together into a
334 single compressed resource, thereby saving space. This degrades the
335 performance of random access (such as that which occurs on a mounted
336 image), but optimizations have been implemented for extraction. These
337 new WIM files also typically use a new compression format (LZMS), which
338 is similar to LZMA and can offer a better compression ratio than LZX.
339 These new WIM files can be created using `wimcapture' with
340 the '--compress=lzms --pack-streams' options. Note: this new WIM format
341 is used by the Windows 8 web downloader, but important segments of the
342 raw '.esd' files are encrypted, so wimlib will not be able to extract
343 such files until they are first decrypted.
345 wimlib now supports extracting files and directories from a WIM image
346 based on a "listfile" that itself contains the list of paths to extract.
347 For `wimextract', the syntax is to specify @LISTFILE instead of a PATH,
348 and for the library itself, the new APIs are wimlib_extract_pathlist()
349 and wimlib_extract_paths(). Path globs containing wildcard characters
352 For searching WIM files, wimlib now has configurable case sensitivity.
353 The default on Windows is still case-insensitive and the default on
354 UNIX-like systems is still case-sensitive, but this can be overridden
355 on either platform through flags to wimlib_global_init(). For
356 `wimlib-imagex', the environmental variable WIMLIB_IMAGEX_IGNORE_CASE
357 can be set to 1 or 0 for case-insensitive or case-sensitive behavior,
360 Support for compression chunk sizes greater than the default of 32768
361 bytes has been added. A larger chunk size typically results in a better
362 compression ratio. However, the MS implementation is seemingly not
363 compatible with all chunk sizes, especially for LZX compression, so the
364 defaults remain unchanged, with the exception of the new LZMS-compressed
365 WIMs, which use a larger chunk size by default.
367 The compression/decompression API exported by wimlib has been changed.
368 Now one set of functions handles all supported compression formats.
370 `wimcapture' and `wimappend' will now display the progress of scanning
371 the directory tree to capture, in addition to the progress of writing
372 data to the WIM. The '--verbose' option no longer does anything. The
373 library API change for this is the addition of several members to
374 `struct wimlib_progress_info_scan' available to progress callbacks.
376 `mkwinpeimg' now correctly handles the '--start-script' option when the
377 start script is not in the working directory.
379 Sequential extraction, previously requested by using
380 WIMLIB_EXTRACT_FLAG_SEQUENTIAL, is now the default.
381 WIMLIB_EXTRACT_FLAG_FILE_ORDER can be used to get the old default
382 behavior (extract in file order).
385 The new LZX compressor added in v1.5.2 has been improved and is now
386 enabled by default, except when `wimcapture' or `wimappend' is run
387 *without* the '--compress' option, in which case the faster LZX
388 compressor is used (the same as before). This behavior is reasonably
389 consistent with ImageX which actually uses "fast" (XPRESS) compression
390 by default. In those cases, use '--compress=maximum' to explicitly
391 capture a WIM image using the new (slower but better) LZX compressor.
393 The '--compress-slow' option still exists to `wimlib-imagex optimize',
394 but its new behavior is to tweak the new LZX compressor even more to
395 produce an even better compression ratio at the cost of more time spent
398 `wimlib-imagex optimize' now supports the '--compress=TYPE' option,
399 which recompresses the WIM file using the specified compression TYPE.
400 The new library API function used for this is
401 wimlib_set_output_compression_type().
403 Added the wimlib_get_xml_data() function to allow library clients to
404 easily retrieve the raw XML data from a WIM file if needed.
406 Fixed a bug that could cause an error code to be incorrectly returned
407 when writing XML data containing a <WINDOWS> element.
409 Mounted WIM images will now correctly show the default file stream even
410 if appears in the alternate data stream entries of the corresponding WIM
414 Added a new experimental LZX compressor which can be enabled by passing
415 '--compress-slow' to `wimlib-imagex capture' or `wimlib-imagex
416 optimize'. (The latter is only applicable if the WIM is already
417 LZX-compressed and the '--recompress' option is also given.) The
418 experimental compressor is much slower but compresses the data slightly
419 more --- currently usually to within a fraction of a percent of the
420 results from WIMGAPI/ImageX.
422 A workaround has been added for compatibility with versions of WinPE
423 that interpret alternate data stream entries in the boot WIM
426 An alignment bug that caused a crash in the LZX decompressor on some
429 wimlib now attempts to clear the WIM_HDR_FLAG_WRITE_IN_PROGRESS flag in
430 the WIM header when restoring the previous state of a WIM it failed to
433 Added a workaround to avoid an access denied error on Windows when
434 replacing a WIM file that another process has opened.
437 wimlib can now open WinPE WIMs from WAIK v2.1, which had a quirk that
438 needed to be handled.
440 A bug in the interpretation of negative IMAGE indices in the
441 --update-of=[WIMFILE:]IMAGE option to `wimlib-imagex capture' and
442 `wimlib-imagex append' has been fixed.
444 A workaround has been added to successfully apply security descriptors
445 with empty DACLs when the NTFS-3g apply mode is being used with NTFS-3g
446 2013.1.13 or earlier.
448 `wimlib-imagex capture' can now accept the '--delta-from' option
452 Added support for "pipable" WIMs. Pipable WIMs allow capturing images
453 to standard output and applying images from standard input, but they are
454 not compatible with Microsoft's software and are not created by default.
455 See the documentation for --pipable flag of `wimlib-imagex capture' for
458 To better support incremental backups, added support for declaring an
459 image as a modified form of another image. See the documentation for
460 the '--update-of' option of `wimlib-imagex append' and `wimlib-imagex
463 Added supported for "delta" WIMs. See the documentation for the
464 '--delta-from' option of `wimlib-imagex capture'.
466 The library support for managing split WIMs has been changed to support
467 other arrangements, such as delta WIMs, and be easier to use. This
468 change is visible in `wimlib-imagex', which also can now accept the
469 '--ref' option multiple times, and also now supports "delta" WIMs as
472 wimlib now preserves WIM integrity tables by default, even if
473 WIMLIB_WRITE_FLAG_CHECK_INTEGRITY is not specified. This changes the
474 behavior of `wimlib-imagex' whenever the WIM being operated on contains
475 an integrity table and the '--check' option is not specified.
477 `wimlib-imagex capture' now creates LZX-compressed WIMs by default
478 (when --compress is not specified). This provides the best compression
479 ratio by default, which is usually what is desired, at a cost of some
482 `wimlib-imagex' now supports being invoked as wimCOMMAND, where COMMAND
483 is the command as in `wimlib-imagex COMMAND'; for example, it can be
484 invoked as `wimapply' as an alternative to `wimlib-imagex apply'. The
485 appropriate hard links are created in UNIX installations of
486 `wimlib-imagex', while for the Windows distribution of `wimlib-imagex',
487 batch files that emulate this behavior are generated.
489 Security descriptors are now extracted correctly on Windows.
491 Fixed archiving DOS names in NTFS-3g capture mode.
493 The extraction code has been rewritten and it will now be easier to
494 support new features on all supported backends (currently Win32, UNIX,
495 and NTFS-3g). For example, hard-linked extraction mode (--hardlink) is
496 now supported on all backends, not just UNIX.
498 `mkwinpeimg' now supports grabbing files from the WAIK supplement rather
499 than the WAIK itself.
501 wimlib_global_init() now, by default, attempts to acquire additional
502 privileges on Windows, so library clients need not do this.
504 This update bumps the shared library version number up to 9, since it is
505 not binary compatibible with previous releases.
508 Fixed bug in `wimlib-imagex export' that made it impossible to export an
509 image from a WIM that is readonly at the filesystem level.
511 Return error code rather than segfaulting when trying to list files from
512 a non-first part of a split WIM.
514 Joining a WIM will now preserve the RP_FIX and READONLY flags.
517 On Windows, paths given to wimlib-imagex are now treated case
520 Improved behavior regarding invalid filenames; in particular, on
521 Windows, wimlib-imagex will, when extracting, now omit (with an option
522 to override this default) filenames differing only in case, or filenames
523 containing characters not valid on Windows.
525 On Windows, wimlib now supports capturing and extracting long paths
526 (longer than the so-called MAX_PATH).
528 On Windows, `wimlib-imagex update' now acquires proper privileges when
529 running as an Administrator.
531 `wimlib-imagex update' will now complain if no image is specified when
532 trying to update a multi-image WIM.
534 `wimlib-imagex update' now supports specifying a single update command
535 directly on the command line using the --command option.
537 wimlib-imagex will now choose different units for progress messages,
538 depending on the amount of data that needs to be processed.
540 `wimlib-imagex append' will now generate a unique WIM image name if no
541 name is specified and the defaulted name already exists in the WIM.
543 wimlib now allows you to create unnamed WIM images, which can then only
544 be referred to by index.
546 wimlib now allows you to explicitly declare you want write access to a
547 WIM by providing the WIMLIB_OPEN_FLAG_WRITE_ACCESS flag to
550 wimlib now respects the WIM_HDR_FLAG_READONLY flag when set in the WIM
553 Progress callbacks have been added to wimlib's wimlib_update_image()
556 Added wimlib_get_wim_info(), wimlib_set_wim_info(),
557 wimlib_iterate_dir_tree(), and wimlib_iterate_lookup_table() functions
560 NTFS-3g capture now only warns about two conditions previously treated
563 Fixed a couple issues with using wimlib-imagex on UDF filesystems on
566 wimlib now correctly detects and returns an error when reading a WIM
567 image with a cyclic directory structure. (Fun fact: such a WIM will
568 crash Microsoft's software.)
571 Added new "extract" and "update" subcommands to wimlib-imagex, along
572 with associated APIs in the library. These commands are intended mainly
573 for Windows use but can be used on UNIX as well.
575 Many documentation improvements.
577 Fixed a bug in the Windows build where relative symbolic links were not
578 captured in reparse-point fixup mode.
580 Fixed a bug in the Windows build where file handles were left open to
581 the WIM file, causing `wimlib_imagex optimize' to fail in some cases.
583 Fixed a bug in the Windows build of wimlib-imagex where globbing
584 split-WIM parts could cause the program to crash.
586 Fixed a bug where the creation time of WIM images would be shown instead
587 of the last modification time.
589 With the Windows build it is now possible to restore a WIM containing
590 symbolic links as a non-Administrator; however you will receive warnings
591 about not being able to extract the symbolic links.
594 Capturing a WIM image should now be significantly faster in most cases
595 due to improved use of the operating system's cache and avoiding reading
596 files twice whenever possible.
598 The Windows build should now work on Windows XP.
600 The Windows build now supports capturing and restoring hidden,
601 compressed, sparse, and encrypted files.
603 The Windows build now supports capturing and applying WIM images from
604 filesystems other than NTFS (with some reduced functionality).
606 The Windows build now extracts short names correctly.
608 Added support for "reparse-point" fixups (i.e. fixing up of symbolic
609 links). See docs for --rpfix and --norpfix flags of `wimlib-imagex
610 capture' and `wimlib-imagex apply'.
612 The performance of splitting and joining WIMs should be slightly
615 The LZX and XPRESS compression and decompression functions are now
616 exported from the library.
619 Improvements and bugfixes for the Windows build.
621 Added --strict-acls options.
623 Fixed the way that wimlib determines the order of images in the WIM.
626 Since wimlib can now be used on Windows, wimlib's implementation of
627 ImageX has been renamed to wimlib-imagex to avoid confusion with
628 Microsoft's implementation of ImageX, which would have the same file
629 name ("imagex.exe"). If you really don't like this you can pass the
630 --with-imagex-progname option to `configure' to choose a different name,
631 or even simply rename the binary yourself (but the former way will
632 configure the man pages to use the chosen name).
634 Various bugs fixed in the Windows build. Mainly to do with capturing
635 and restoring alternate data streams correctly in weird cases, and
636 requesting the correct privileges when opening files. Also added the
637 --noacls options to wimlib-imagex capture, append, and apply.
639 Windows build again: FindFirstStreamW() and FindNextStreamW() are now
640 dynamically loaded, so this may make the library compatible with Windows
641 XP (however, there may still be other problems).
644 Added experimental support for native Windows builds. Binaries can be
645 downloaded from the SourceForge page.
647 --source-list option added to `imagex capture' and `imagex append'.
649 Better support for different character encodings.
652 Storing UNIX file owners, groups, and modes in WIM images is now
653 possible using `imagex capture' with the --unix-data flag.
655 Minor bug fixes and documentation fixes.
658 NTFS capture: Fixed capturing duplicate reparse points.
660 NTFS capture: Capture first unnamed stream if there are more than one
661 (print warning instead of error).
663 Allow multiple test cases to execute concurrently (e.g. make -j2 check).
666 Added --arch switch to mkwinpeimg script to support getting AMD64 WinPE
669 Update to work with ntfs-3g version 2013.1.13.
672 Fixed truncating file to shorter but non-zero length on read-write
675 Various code cleanups and minor documentation fixes.
678 LZX and XPRESS decompression have received some additional optimizations
679 and should now be even faster. (Although, they were already pretty
680 fast--- much faster than typical I/O speeds.)
682 Fixed a bug introduced in v1.2.1 that would cause a directory tree
683 containing hard links to be captured incorrectly in some cases.
686 By default, unmounting a read-write mounted WIM with 'imagex unmount
687 --commit' will now change the WIM in-place without needing to write the
688 entire WIM again. Use 'imagex unmount --commit --rebuild' to get the
691 'imagex unmount' no longer has a hard-coded limit of 10 minutes to wait
692 for a response from the daemon servicing the mounted WIM. Instead,
693 every second 'imagex unmount' will check if the daemon is still alive,
694 and keep waiting if so, otherwise terminate with an error.
696 'imagex unmount --commit' on a read-write mounted WIM will now print
697 progress information regarding the writing of new or modified streams
698 the WIM, just like when capturing or appending a WIM.
700 A small change has been made to XPRESS compression and it should improve
701 the compression ratio slightly.
703 A change was made that may improve performance slightly when applying a
704 WIM image to a NTFS volume.
706 Microsoft has managed to introduce even more bugs into their software,
707 and now the WIMs for Windows 8 have incorrect (too low) reference counts
708 for some streams. This is unsafe because such streams can be removed
709 when they are in actuality still referenced in the WIM (perhaps by a
710 different image). wimlib will now work around this problem by fixing
711 the stream reference counts. This is only done when wimlib_delete_image() is
712 called ('imagex delete') or when wimlib_mount_image() is called with
713 WIMLIB_MOUNT_FLAG_READWRITE ('imagex mountrw'). Please note that this
714 requires reading the metadata for all images in the WIM, so this will
715 make these operations noticably slower on WIMs with multiple images.
717 Various other bugfixes.
720 Appending images to a WIM is now be done by default without re-building
721 the whole WIM. Use the --rebuild flag to get the old behavior (which
722 was to re-build the entire WIM when a new image is appended).
724 A new command `imagex optimize' is now available to manually re-build a
725 WIM that has wasted space due to repeated appends.
727 Progress information has been improved, and now arbitrary callback
728 functions can be used to show the progress of a WIM operation.
730 A possible bug with changing the bootable image of a WIM was fixed.
732 Some advisory locking is now done to prevent two processes from
733 modifying a WIM at the same time (but only in some cases). For example,
734 you cannot mount two images from a WIM read-write at the same time.
736 Some functions have been reorganized:
737 * wimlib_mount() renamed to wimlib_mount_image().
738 * wimlib_unmount() renamed to wimlib_unmount_image().
739 * wimlib_overwrite_xml_and_header() removed as
740 wimlib_overwrite() suffices now.
741 * wimlib_apply_image_to_ntfs_volume() removed as
742 wimlib_extract_image() suffices now.
743 * wimlib_add_image_from_ntfs_volume() removed as
744 * wimlib_add_image() suffices now.
746 Previously, the soname of libwim.so has been 0.0.0, despite many
747 interface changes. The soname is now updated to 1.0.0 and will now be
748 updated each release.
751 Resources will now be compressed using multiple threads by default.
752 (This applies to `imagex capture', `imagex append', and `imagex
755 Some performance improvements in mounted WIMs.
757 More progress information is shown when capturing a WIM.
760 Lots of minor fixes, code cleanups, and some documentation updates.
761 Nothing in particular is really noteworthy.
764 LZX and XPRESS compression improvements.
766 Fixed calculation of Directory Count, File Count, Total Bytes, and Hard
767 Link Bytes of the WIM.
770 Fixed bug when capturing NTFS file with multiple named data streams.
772 Internally, we are now using inode structures, even though these don't
773 appear literally in the WIM file. This simplifies some of the code
774 (mainly for WIM mounting) and likely fixed a few problems, although it
778 Fixed problem when exporting images from XPRESS to LZX compressed WIM or
782 Enough changes to call it version 1.0.0!
784 Capturing a WIM directly from a NTFS volume, and applying a WIM directly
785 to a NTFS volume, is now supported.
787 Hard links and symbolic links have much improved support. They are
788 supported for WIM capture, WIM application, and mounted WIMs (you can
789 even make them on read-write mounted WIMs).
791 Alternate data streams are now supported on mounted WIMs through an
792 xattr or a Windows-style stream interface. Also they are supported when
793 capturing a WIM from NTFS or applying a WIM to NTFS.
795 Split WIMs are better supported. You may now apply an image directly
796 from a split WIM, mount an image from a split WIM read-only, or export
797 an image from a split WIM.
799 Using a capture configuration file is now supported (but not fully yet).
801 SHA1 message digests are checked in more places, so we can make sure
802 applied and captured data is correct.
804 Man pages have been updated and consolidated.
807 Fixed segfault when unmounting read-only WIM.
810 Support for joining and splitting WIMs.
811 Also, security data is now preserved by default.
814 Can now build with older gcc and system headers, like on CentOS 5.
817 Fixed bug that made it impossible to overwrite files in read-write
821 Write byte-order mark before WIM XML data. (imagex.exe requires this to