3 ## Version 1.14.0-BETA3
5 - Removed libxml2 and libcrypto (OpenSSL) as dependencies of wimlib. Also
6 removed winpthreads as a dependency of wimlib on Windows.
8 - Upgraded the support for mounting WIM images on Linux from fuse2 to fuse3.
9 fuse2 is no longer supported.
11 - Converted the README, README.WINDOWS, and NEWS files to Markdown.
13 - Simplified the process of building wimlib for Windows. See README.WINDOWS for
14 the updated instructions, which use MSYS2 instead of Cygwin. Windows ARM64
15 builds are now supported (experimentally) as well.
17 - Improved performance on CPUs that have SHA-1 instructions in cases where
18 wimlib wasn't using OpenSSL, e.g. the Windows binaries.
20 - Fixed a bug in `wimsplit` where it didn't accept part sizes of 4 GiB or larger
21 on Windows and on 32-bit platforms.
23 - `wimupdate` now supports the `--ref` option. It should be specified when
24 updating a delta WIM to avoid two minor issues.
26 - `wimoptimize` now has better default behavior when converting to and from
27 solid archives, i.e. WIM <=> ESD. It now is consistent with `wimcapture` and
28 `wimexport`. For WIM => ESD, `wimoptimize --solid` now works. Before, the
29 needed command was `wimoptimize --solid --compress=LZMS --chunk-size=128K`.
30 For ESD => WIM, `wimoptimize --compress=LZX` now works. Before, the needed
31 command was `wimoptimize --compress=LZX --chunk-size=32K`.
33 - Removed support for Windows XP.
35 - Added a GitHub Actions workflow that tests wimlib.
39 - `wimsplit` no longer prints a success message on failure.
41 - `wimlib_iterate_dir_tree()` no longer hashes files that haven't yet been
42 written to the WIM file.
44 - Reduced the maximum number of file descriptors that wimlib can use when
45 extracting files from a WIM image on macOS.
47 - The files that used the CC0 public domain dedication now use the MIT license
50 - Removed some configuration options (`--disable-assertions`,
51 `--disable-error-messages`, and `--disable-multithreaded-compression`) that
52 probably weren't being used by anyone.
56 - Exporting "all" images from a WIM file no longer fails if multiple
57 images in that WIM file have the same name.
59 - wimlib now warns rather than aborts if two files have the same SHA-1
60 hash but different sizes.
62 - Fixed build errors with the latest version of MinGW-w64.
66 - wimsplit now prints progress messages regularly rather than just once per WIM
69 - Added support for a data recovery mode which causes files to be extracted even
70 if they are corrupted. The option is `--recover-data` for `wimapply` and
71 `wimextract`, and `WIMLIB_EXTRACT_FLAG_RECOVER_DATA` for the library. Note
72 that this option won't help with all types of corruption; some types of
73 corruption will still cause a fatal error.
77 - On Windows, improved performance of capturing an entire drive in some cases.
79 - On Windows, fixed leaking a directory handle (or triggering a SEH exception
80 when running under a debugger) when referencing WIM files.
82 - On Windows, when applying a Windows OS image using the `--compact` flag,
83 bootloader files can now be compressed with stronger compression algorithms if
84 the version of Windows is recent enough to support it.
86 - Clarified the license text.
90 - Prevented miscompilation with gcc 10 at -O3 due to [a gcc
91 bug](https://gcc.gnu.org/bugzilla/show_bug.cgi?id=94994).
93 - Avoided some compiler warnings with gcc 9 and later.
95 - The `mkwinpeimg` script now also looks for syslinux modules in
96 `/usr/share/syslinux`, to handle where openSUSE installs them.
98 - Removed obsolete packaging files from the source tree.
102 - Fixed a crash or incorrect output during LZMS compression with a compression
103 level greater than 50 and a chunk size greater than 64 MiB. This affected
104 wimlib v1.8.0 and later. In the unlikely event that you used all these
105 non-default compression settings in combination, e.g. `wimcapture --solid
106 --solid-compress=LZMS:100 --solid-chunk-size=128M`, run `wimverify` on your
107 archives to verify your data is intact.
111 - On Windows, wimlib now supports capturing and applying extended attributes
112 (EAs). It is compatible with DISM with the `/EA` option, available since
113 Windows 10 version 1607. wimlib's EA support is on by default and works on
114 older versions of Windows too.
116 - Partially fixed a bug where `[ExclusionException]` entries didn't take effect
117 when the containing directory is matched by `[ExclusionList]`. It now works
118 when the `[ExclusionException]` patterns are absolute. For example, listing
119 `/dir/file` in `[ExclusionException]` now works even if `/dir` is matched by
122 - Added a `--create` option to `wimappend` which makes it create the WIM
123 file (like `wimcapture`) if it doesn't exist yet.
125 - Added an `--include-integrity` option to various `wimlib-imagex` commands.
126 `--include-integrity` is like `--check`, but it will just include an integrity
127 table in the output WIM(s), while skipping verification of any existing
128 integrity tables. This can be useful to avoid unwanted verification of large
129 WIM files, e.g. WIMs given by `--delta-from`.
131 - `wimextract` now reads a pathlist file from standard input when `@-` is given
134 - `wimsplit` (API: `wimlib_split()`) now correctly handles a dot in the path to
135 the first split WIM part, prior to the filename extension.
137 - `wimlib-imagex --version` now shows the version of the library it is actually
138 using (in case it is different from `wimlib-imagex`'s version).
142 - Fixed a bug that was causing the LZMS decompressor to be miscompiled with GCC
143 7 (this broke extracting "solid" archives).
145 - The Windows 10 Recycle Bin directory (`\$RECYCLE.BIN`) has been added to the
146 default exclusion list.
148 - Added a `--quiet` option to `wimlib-imagex`.
150 - The `mkwinpeimg` script now also looks for the syslinux BIOS modules in the
151 directory `/usr/lib/syslinux/modules/bios`.
153 - Files with timestamps before the year 1970 are now extracted correctly to
154 UNIX-style filesystems, are displayed correctly by `wimdir --detailed`, and
155 show up correctly in mounted WIM images.
157 - Files with timestamps after the year 2038 are now displayed correctly by the
158 32-bit Windows build of wimlib.
162 - Fixed a data corruption bug (incorrect compression) when storing an already
163 highly-compressed file in an LZX-compressed WIM with a chunk size greater than
164 or equal to 64K. Note that this is not the default setting and such WIMs are
165 not supported by Microsoft's WIM software, so only users who used the
166 `--chunk-size` option to `wimlib-imagex` or the
167 `wimlib_set_output_chunk_size()` API function may have been affected. This
168 bug was introduced in wimlib v1.10.0. See [this forum
169 thread](https://wimlib.net/forums/viewtopic.php?f=1&t=300) for more details.
171 - On all platforms, sparse files are now extracted as sparse.
173 - Sparse files captured from UNIX-style filesystems are now marked as sparse in
174 the resulting WIM image.
176 - Added support for storing Linux-style extended attributes in WIM images. When
177 the `--unix-data` option is used on Linux, `wimlib-imagex` now captures and
178 applies extended attributes, in addition to the already-supported standard
179 UNIX file permissions (owner/group/mode) and special files.
181 - `--delta-from` is now supported by `wimappend`. (Previously it was only
182 supported by `wimcapture`.)
184 - On Windows, improved the way in which files deduplicated with Windows' Data
185 Deduplication feature are captured.
187 - The development files needed to link with wimlib using Visual Studio are now
188 included in the Windows release archives.
190 - `wimlib.h` can now be included by Visual Studio without errors.
192 - The example programs can now be compiled in C++ mode, and they also now work
195 - Updated `mkwinpeimg` to work correctly on images that have a `windows`
196 (lower case) directory rather than a `Windows` (upper case) directory.
198 - Fixed configuring with `--enable-ssse3-sha1` from release tarball (the file
199 `nasm_lt.sh` was missing).
201 - Made some documentation improvements.
205 - The LZX compression ratio has been slightly improved. The default mode, LZX
206 level 50, is now almost as good as the old LZX level 100, while being nearly
207 the same speed as before.
209 - Decompression performance has been slightly improved.
211 - Filenames are now always listed in NTFS collation order.
213 - On UNIX-like systems, wimlib can now process Windows filenames that are
214 not valid Unicode due to the presence of unpaired surrogates.
216 - On UNIX-like systems, wimlib now always assumes UTF-8 encoding with the
217 addition of surrogate codepoints. Consequently, the environmental variable
218 `WIMLIB_IMAGEX_USE_UTF8` and the flag `WIMLIB_INIT_FLAG_ASSUME_UTF8` no longer
221 - wimlib no longer depends on iconv.
223 - Reduced memory usage slightly.
225 - When a WIM image is applied in NTFS-3G mode, security descriptors are now
226 created in NTFS v3.0 format when supported by the volume.
228 - Workarounds for bugs in libntfs-3g version 2013.1.13 and earlier have been
229 removed. Users are advised to upgrade to a later version of libntfs-3g.
231 - On Windows, wimlib now supports case-sensitive filename extraction when
232 supported by the underlying operating system and filesystem (operating system
233 support requires a registry setting).
237 - On UNIX, wimlib can now overwrite readonly files when extracting.
239 - On Windows, fixed a bug where wimlib could leave a null DACL (a.k.a. "no NTFS
240 permissions") set on some existing directories after extraction.
242 - On Windows, when applying a WIM image in "WIMBoot mode" when the WOF driver is
243 not loaded, wimlib can now correctly register a new WIM file with the target
244 volume when the target volume previously had had WIM files unregistered.
246 - Added a new testing program.
248 - Clarified the main license text and updated public domain dedications for
249 certain files to be more thorough.
253 - Object IDs are now saved and restored on Windows and in NTFS-3G mode.
255 - Reduced memory usage when exporting large numbers of WIM images.
257 - Non UTF-8 locales are now detected correctly.
259 - Addressed compiler warnings and enabled "silent" make rules by default.
261 - Windows-specific updates:
263 - Fixed a bug where duplicate backslashes could be generated in link targets
264 when extracting symbolic links and junctions.
266 - Fixed a bug where the `.cmd` shortcuts for `wimlib-imagex` wouldn't work if
267 their full path contained a space.
269 - Fixed bugs related to scanning SMB filesystems.
271 - Added warning message about known issue with WindowsApps folder.
273 - Added instructions for building from source on Windows.
275 - VSS support is no longer marked "experimental".
277 - Added missing license file for libdivsufsort-lite.
281 - Added experimental support for Windows VSS (Volume Shadow Copy Service). The
282 new `--snapshot` argument to `wimcapture` makes wimlib automatically create
283 and use a temporary VSS snapshot when capturing a WIM image.
285 - Implemented setting of Windows-specific XML information, such as architecture,
286 system root, and version details. This information is now automatically set
287 in newly captured WIM images, when appropriate.
289 - Improved performance of directory tree scans on Windows.
291 - On Windows, to improve capture performance, wimlib now sometimes opens files
292 by inode number rather than by path. This is enabled for `wimcapture` and
293 `wimappend`, but for now other applications have to opt-in.
295 - The progress messages printed by `wimlib-imagex` while writing WIM files have
296 been slightly tweaked.
298 - Progress information for directory tree scans now counts all hard links.
299 Also, on Windows `\\?\` is no longer stripped from the current path.
301 - Added a new `--image-property` option to `wimcapture`, `wimappend`, and
302 `wiminfo`. This option lets you assign values to elements in a WIM file's XML
305 - The `wimlib_get_image_property()` and `wimlib_set_image_property()` API
306 functions now support numerically indexed elements.
308 - Fixed a bug where, on Windows, wimlib would change the security descriptor of
309 the target directory of an extraction even when the `--no-acls` option was
314 - Fixed a bug with libntfs-3g extraction present since v1.8.1. Sometimes, some
315 Microsoft software would not correctly recognize data in the resulting
318 - Made some small improvements to the compression algorithms:
319 - LZX compression ratio was slightly improved.
320 - XPRESS compression ratio and speed was slightly improved.
321 - LZMS compression speed was slightly improved.
323 - Improved handling of WIM XML data. wimlib no longer drops unrecognized
324 elements when exporting images. In addition, two API functions were added for
325 better access to elements in the XML document: `wimlib_get_image_property()`
326 and `wimlib_set_image_property()`.
328 - Added support for (unsafe) in-place compaction of WIM files.
330 - Improved performance of image export by reusing metadata resources
331 instead of always rebuilding and recompressing them.
333 - Improved performance of `wimlib_update_image()` by delaying the update to the
334 WIM's XML document until a write is requested.
336 - On Windows, the target of an extraction may now be a reparse point
337 (which will be dereferenced).
339 - On Windows, wimlib now correctly restores non-Microsoft reparse points.
340 However, this remains broken in NTFS-3G mode due to a libntfs-3g bug.
342 - On Windows, wimlib now has improved performance when archiving files
343 from a filesystem backed by a WIM (a "WIMBoot" setup).
345 - Several improvements to System Compression (compact mode) support:
347 - `wof.sys` (or `wofadk.sys`) is now automatically attached to the target
350 - Compact-mode extractions now work correctly with `wofadk.sys` on older
353 - For compatibility with the Windows bootloader, the requested compression
354 format now is overridden on certain files.
356 - Other minor bugfixes.
360 - This release primarily contains various minor bug fixes and improvements,
363 - Improved handling of deep directory structures.
365 - Fixed a bug where on 32-bit systems, the library could enter an infinite
366 loop if a WIM file was malformed in a specific way.
368 - Added a workaround for a case where libntfs-3g may report duplicate streams
371 - Windows symbolic links and junctions in mounted WIM images are now
372 automatically rewritten to be valid in the mounted location.
374 - Reparse point fixes: correctly handle the "ReparseReserved" field, and
375 correctly handle "empty" (data-less) reparse points.
377 - On Windows, wimlib now acquires SeManageVolumePrivilege, which is needed to
378 create externally backed files using the `wofadk.sys` driver.
380 - Improved validation of filenames.
382 - Improved LZMS decompression speed.
384 - The configure script now honors alternate pkg-config settings.
386 - Links have been updated to point to the new website.
388 - In addition, experimental support has been added for compressing extracted
389 files using System Compression on Windows 10. This functionality is available
390 through the new `--compact` option to `wimapply` and `wimextract` as well as
395 - Fixed a bug in the LZX decompressor: malicious input data could cause out of
396 bounds writes to memory (since wimlib v1.2.2).
398 - The output of the `wiminfo` command now consolidates various boolean flags
399 (such as "Relative path junction") into a single line.
401 - A file can now have both an unnamed data stream ("file contents") and a
402 reparse point stream. Such files can exist as a result of the use of certain
403 Windows features, such as offline storage, including "OneDrive". wimlib will
404 now store and restore both streams on Windows as well as in NTFS-3G mode.
405 Microsoft's WIMGAPI also has this behavior.
407 - On Windows, named data streams of encrypted files are no longer stored twice
410 - On Windows, named data streams are now correctly extracted to existing
411 "readonly" directories. Before, an error would be reported.
413 - On Windows, it is now possible to do a "WIMBoot mode" extraction with
414 non-standalone WIMs such as delta WIMs.
416 - On Windows, when doing an extraction in "WIMBoot mode", files larger
417 than 4 gigabytes are now never extracted as externally backed. This
418 works around a bug in Microsoft's "WOF" driver.
420 - The `--enable-verify-compression` configure option has been removed. If you
421 want to verify a WIM file, use the `wimverify` program.
423 - The way the "file count", "directory count", "total bytes", and "hard link
424 bytes" image statistics (stored in the WIM XML data) is calculated has been
427 - In mounted WIM images, the disk usage provided for each file (`st_blocks`) is
428 now the compressed size rather than the uncompressed size.
430 - The performance of the NTFS-3G and Windows capture modes has been slightly
433 - On UNIX-like systems, symbolic links whose targets contain the backslash
434 character are now handled correctly (losslessly).
438 - Improved the LZX compressor. It is now 15-20% faster than before and provides
439 a slightly better compression ratio.
441 - Improved the LZMS compressor. It now provides a compression ratio slightly
442 better than WIMGAPI while still being faster and using slightly less memory.
444 - The compression chunk size in solid resources, e.g. when capturing or
445 exporting a WIM file using the `--solid` option, now defaults to 64 MiB
446 (67108864 bytes) instead of 32 MiB (33554432 bytes). This provides a better
447 compression ratio and is the same value that WIMGAPI uses. The memory usage
448 is less than 50% higher than wimlib v1.7.4 and is slightly lower than
449 WIMGAPI's memory usage, but if it is too much, it is still possible to choose
450 a lower value, e.g. with the `--solid-chunk-size` option to `wimlib-imagex`.
452 - The `--chunk-size` and `--solid-chunk-size` options to `wimlib-imagex` now
453 accept the 'K', 'M', and 'G' suffixes.
455 - Files are now sorted by name extension when creating a solid WIM file.
457 - Fixed various issues related to capture/apply of EFS-encrypted files on
460 - The file list printed by `wimdir` is now sorted by the platform-specific
461 case sensitivity setting, rather than always case sensitively. This
462 also affects the library function `wimlib_iterate_dir_tree()`.
464 - On Windows, some error and warning messages have been improved.
468 - The Windows binary distribution no longer contains third party DLLs. These
469 dependencies are instead compiled directly into the libwim DLL.
471 - Added more fixes for wimlib on non-x86 architectures such as ARM.
473 - Extracting files to a Windows PE in-memory filesystem no longer fails if
474 the target files do not yet exist.
476 - Improved the performance of XPRESS compression and LZMS decompression.
478 - Enabled SSSE3 accelerated SHA-1 computation in `x86_64` Windows builds. It
479 will automatically be faster on newer Intel and AMD processors.
481 - Removed the `--with-imagex-progname` and `--enable-more-assertions` configure
486 - Fix for very slow export from solid WIM / ESD files.
488 - Fix for LZX and LZMS algorithms on non-x86 architectures, such as ARM.
490 - New progress message: `WIMLIB_PROGRESS_MSG_HANDLE_ERROR`. Applications may
491 use this to treat some types of errors as non-fatal.
493 - The library now permits making in-memory changes to a WIMStruct backed by a
496 - Fixes for "WIMBoot" extraction mode (Windows only):
498 - When not using the WOF driver, extraction no longer fails if the disk
499 containing the WIM file has too many partitions.
501 - When matching patterns in `[PrepopulateList]`, all hard links of each file
504 - The system registry files are now automatically treated as being in
507 - Added a hack to try to work around an intermittent bug in Microsoft's WOF
508 (Windows Overlay Filesystem) driver.
512 - Made more improvements to the XPRESS, LZX, and LZMS compressors.
514 - A number of improvements to the Windows port:
516 - Fixes for setting short filenames.
518 - Faster "WIMBoot" extraction.
520 - Updated and slimmed down the dependent DLLs.
522 - ACL inheritence bits are now restored.
524 - Mandatory integrity labels are now backed up and restored.
526 - Added a workaround for an issue where in rare cases, wimlib could create a
527 compressed data stream that could not be read correctly by Windows after an
528 extraction in "WIMBoot" mode.
532 - Added file count progress data for
533 `WIMLIB_PROGRESS_MSG_EXTRACT_FILE_STRUCTURE` and
534 `WIMLIB_PROGRESS_MSG_EXTRACT_METADATA`.
536 - Added support for testing file exclusions via the user-provided progress
539 - Some documentation improvements.
541 - Made some clarifications to the license text in the COPYING file.
545 - Made more improvements to the XPRESS, LZX, and LZMS compressors.
547 - The default compression mode for wimcapture is now LZX compression in its
548 default mode, which is the same as `--compress=maximum`.
550 - You can now specify an optional integer compression level to the
551 `--compress` option; e.g. `--compress=lzx:75`.
553 - Made a minor change to the LZMS compressor and decompressor to fix an
554 incompatibility with the Microsoft implementation. In the unlikely event that
555 you created an LZMS-compressed WIM with wimlib v1.7.0 or earlier and a
556 checksum error is reported when extracting files from it with wimlib v1.7.1,
557 decompress it with v1.7.0 then compress it with v1.7.1.
559 - Added `verify` subcommand to `wimlib-imagex`.
561 - Notable library changes:
563 - Custom compressor parameters have been removed from the library in favor of
564 the simpler level-based API.
566 - Decompressor parameters have been removed entirely.
568 - Library users can now specify a custom file for warning and error messages
569 to be sent to, rather than the default of standard error.
571 - New progress messages: `WIMLIB_PROGRESS_MSG_EXTRACT_FILE_STRUCTURE`,
572 `WIMLIB_PROGRESS_MSG_EXTRACT_METADATA`.
574 New function: `wimlib_verify_wim()`.
578 - Improved compression, decompression, and extraction performance.
580 - Improved compatibility with version 3584 WIM / ESD files:
582 - Add support for reading and writing multiple solid blocks per archive, which
583 WIMGAPI/DISM can create when appending an image.
585 - Correctly create solid blocks larger than 4 GiB.
587 - `add` commands passed to wimupdate will now replace existing nondirectory
588 files by default. Use the `--no-replace` option to get the old behavior.
590 - The license for the library now contains an exception that allows using it
591 under the LGPL. See the COPYING file for details.
593 - In reparse-point fixup mode (the default for capture), symbolic links and
594 junctions that point outside the tree being captured are no longer excluded
597 - Added support for "WIMBoot" capture and extraction. See the documentation for
598 the new `--wimboot` option to wimcapture and wimapply for more information.
600 - On UNIX-like systems, you can now backup and restore device nodes, named
601 pipes, and sockets. In addition, 32-bit user and group IDs are now supported.
603 - The way that UNIX data is stored in WIM files has been changed. If you
604 captured any WIMs with the `--unix-data` option, to upgrade them you'll need
605 to apply them with `--unix-data` using `wimlib-imagex` v1.6.2, then re-capture
606 them with `--unix-data` using this version.
608 - wimlib now understands tagged metadata items, such as object IDs, that
609 can be stored in WIM directory entries.
611 - Removed the `--hardlink` and `--symlink` options to wimapply, since I don't
612 think they are too useful and they got in the way of improving the code.
614 - WIMs will now retain their GUIDs when rebuilt (e.g. with wimoptimize).
616 - The `mkwinpeimg` script now supports writing the ISO image to standard output.
618 - The `<ARCH>` element in WIM XML data is now exported correctly.
620 - On Windows, sparse file attributes are no longer set on extracted files.
621 Oddly enough, this actually saves disk space in some cases.
623 - On UNIX, configuring with `--disable-xattr` or `--enable-xattr` is no longer
624 supported. Mounting WIM images now always requires extended attribute
625 support. Use `--without-fuse` to disable support for mounting WIM images;
626 this will also disable the need for extended attribute support.
628 - Configuring with `--enable-ssse3-sha1` now works correctly.
630 - The shared library version has been bumped up. The main incompatibilities
633 - `WIMLIB_COMPRESSION_TYPE_XPRESS` is now 1 and `WIMLIB_COMPRESSION_TYPE_LZX`
634 is now 2 (so it's the same as WIMGAPI).
636 - User-provided progress functions are now registered using a separate
637 function, `wimlib_register_progress_function()`. The `progress_func`
638 argument to many functions no longer exists.
640 - The return value from user-provided progress functions is now significant.
642 - A context argument has been added to the prototype of user-provided progress
645 - `struct wimlib_capture_config` has been removed. The library now takes the
646 path to the configuration file directly. This affects `wimlib_add_image()`,
647 `wimlib_add_image_multisource()`, and `wimlib_update_image()`. However, a
648 NULL value passed in the argument retains the same meaning.
650 - Removed deprecated functions: some (de)compression functions,
651 `wimlib_extract_files()`, and `wimlib_print_metadata()`.
653 - Removed extraction flags: `WIMLIB_EXTRACT_FLAG_HARDLINK`,
654 `WIMLIB_EXTRACT_FLAG_SYMLINK`, `WIMLIB_EXTRACT_FLAG_FILE_ORDER`, and
655 `WIMLIB_EXTRACT_FLAG_SEQUENTIAL`.
657 - Removed some progress messages: `WIMLIB_PROGRESS_MSG_APPLY_TIMESTAMPS`,
658 `WIMLIB_PROGRESS_MSG_EXTRACT_DIR_STRUCTURE_BEGIN`,
659 `WIMLIB_PROGRESS_MSG_EXTRACT_DIR_STRUCTURE_END`. Numbering stays the same.
661 - Removed some error codes. Numbering stays the same.
663 - Replaced `WIMLIB_UNMOUNT_FLAG_LAZY` with `WIMLIB_UNMOUNT_FLAG_FORCE`.
665 - WIM paths passed to progress functions now have a leading slash.
669 - Case-insensitive comparisons of strings (e.g. filenames) containing UTF-16
670 codepoints above 32767 are now done correctly.
672 - Fixed build failure on Mac OS X.
674 - `wimunmount` now provides the `--new-image` option to cause changes to a
675 read-write mounted image to be committed as a new image rather than as an
676 update of the mounted image. (The corresponding new library flag is
677 `WIMLIB_UNMOUNT_FLAG_NEW_IMAGE`.)
679 - The LZMS ("recovery") compression chunk size, or "dictionary size", may now be
680 up to 1 GiB (1,073,741,824 bytes).
682 - The performance of LZX ("maximum") and LZMS ("recovery") compression with
683 large chunk sizes has been slightly improved.
687 - Stored files with size exactly 4 GiB (4,294,967,296 bytes) are now
688 decompressed correctly.
690 - Fixed a bug in the LZX compressor introduced in v1.5.3. The bug occurred in
691 an unlikely case, and due to validity checks it did not affect successfully
694 - Fixed a minor compatibility issue with the LZMS compressor and decompressor.
695 This is *not* the default compression type and was only introduced in v1.6.0.
696 In the unlikely event that you created an LZMS-compressed WIM with v1.6.0 and
697 a checksum error is reported when applying it with v1.6.1, decompress it with
698 v1.6.0 then compress it with v1.6.1.
700 - Memory usage for LZMS and LZX compression has been decreased.
702 - wimextract now allows wildcard characters in paths specified on the command
703 line. Also, the `--strict-wildcards` option has been removed and replaced
704 with the inverse option `--nullglob`. See the documentation for wimextract
705 for more details and changes.
707 - The `wimlib_extract_files()` function is now considered deprecated in favor of
708 `wimlib_extract_paths()`.
710 - Fixed more permissions problems when extracting files on Windows.
712 - A new `--no-attributes` option has been added to `wimapply` and `wimextract`.
713 The library flag is `WIMLIB_EXTRACT_FLAG_NO_ATTRIBUTES`.
715 - The default chunk size is now set correctly when changing the compression type
716 of a WIM, for example with `wimoptimize`.
718 - The `--metadata` option to `wiminfo` has been replaced with the `--detailed`
721 - In relevant `wimlib-imagex` commands, `--solid` may now be used as an alias
722 for `--pack-streams`.
726 - Support for extracting and updating the new version 3584 WIMs has been added.
727 These WIMs typically pack many streams ("files") together into a single
728 compressed resource, thereby saving space. This degrades the performance of
729 random access (such as that which occurs on a mounted image), but
730 optimizations have been implemented for extraction. These new WIM files also
731 typically use a new compression format (LZMS), which is similar to LZMA and
732 can offer a better compression ratio than LZX. These new WIM files can be
733 created using `wimcapture` with the `--compress=lzms --pack-streams` options.
734 Note: this new WIM format is used by the Windows 8 web downloader, but
735 important segments of the raw `.esd` files are encrypted, so wimlib will not
736 be able to extract such files until they are first decrypted.
738 - wimlib now supports extracting files and directories from a WIM image based on
739 a "listfile" that itself contains the list of paths to extract. For
740 `wimextract`, the syntax is to specify `@LISTFILE` instead of a `PATH`, and
741 for the library itself, the new APIs are `wimlib_extract_pathlist()` and
742 `wimlib_extract_paths()`. Path globs containing wildcard characters are
745 - For searching WIM files, wimlib now has configurable case sensitivity. The
746 default on Windows is still case-insensitive and the default on UNIX-like
747 systems is still case-sensitive, but this can be overridden on either platform
748 through flags to `wimlib_global_init()`. For `wimlib-imagex`, the
749 environmental variable `WIMLIB_IMAGEX_IGNORE_CASE` can be set to 1 or 0 for
750 case-insensitive or case-sensitive behavior, respectively.
752 - Support for compression chunk sizes greater than the default of 32768
753 bytes has been added. A larger chunk size typically results in a better
754 compression ratio. However, the MS implementation is seemingly not
755 compatible with all chunk sizes, especially for LZX compression, so the
756 defaults remain unchanged, with the exception of the new LZMS-compressed
757 WIMs, which use a larger chunk size by default.
759 - The compression/decompression API exported by wimlib has been changed. Now
760 one set of functions handles all supported compression formats.
762 - `wimcapture` and `wimappend` will now display the progress of scanning the
763 directory tree to capture, in addition to the progress of writing data to the
764 WIM. The `--verbose` option no longer does anything. The library API change
765 for this is the addition of several members to `struct
766 wimlib_progress_info_scan` available to progress callbacks.
768 - `mkwinpeimg` now correctly handles the `--start-script` option when the start
769 script is not in the working directory.
771 - Sequential extraction, previously requested by using
772 `WIMLIB_EXTRACT_FLAG_SEQUENTIAL`, is now the default.
773 `WIMLIB_EXTRACT_FLAG_FILE_ORDER` can be used to get the old default behavior
774 (extract in file order).
778 - The new LZX compressor added in v1.5.2 has been improved and is now enabled by
779 default, except when `wimcapture` or `wimappend` is run *without* the
780 `--compress` option, in which case the faster LZX compressor is used (the same
781 as before). This behavior is reasonably consistent with ImageX which actually
782 uses "fast" (XPRESS) compression by default. In those cases, use
783 `--compress=maximum` to explicitly capture a WIM image using the new (slower
784 but better) LZX compressor.
786 The `--compress-slow` option still exists to `wimlib-imagex optimize`, but its
787 new behavior is to tweak the new LZX compressor even more to produce an even
788 better compression ratio at the cost of more time spent compressing.
790 - `wimlib-imagex optimize` now supports the `--compress=TYPE` option, which
791 recompresses the WIM file using the specified compression TYPE. The new
792 library API function used for this is `wimlib_set_output_compression_type()`.
794 - Added the `wimlib_get_xml_data()` function to allow library clients to easily
795 retrieve the raw XML data from a WIM file if needed.
797 - Fixed a bug that could cause an error code to be incorrectly returned when
798 writing XML data containing a `<WINDOWS>` element.
800 - Mounted WIM images will now correctly show the default file stream even if
801 appears in the alternate data stream entries of the corresponding WIM
806 - Added a new experimental LZX compressor which can be enabled by passing
807 `--compress-slow` to `wimlib-imagex capture` or `wimlib-imagex optimize`.
808 (The latter is only applicable if the WIM is already LZX-compressed and the
809 `--recompress` option is also given.) The experimental compressor is much
810 slower but compresses the data slightly more --- currently usually to within a
811 fraction of a percent of the results from WIMGAPI/ImageX.
813 - A workaround has been added for compatibility with versions of WinPE that
814 interpret alternate data stream entries in the boot WIM incorrectly.
816 - An alignment bug that caused a crash in the LZX decompressor on some builds
819 - wimlib now attempts to clear the `WIM_HDR_FLAG_WRITE_IN_PROGRESS` flag in the
820 WIM header when restoring the previous state of a WIM it failed to
823 - Added a workaround to avoid an access denied error on Windows when replacing a
824 WIM file that another process has opened.
828 - wimlib can now open WinPE WIMs from WAIK v2.1, which had a quirk that needed
831 - A bug in the interpretation of negative `IMAGE` indices in the
832 `--update-of=[WIMFILE:]IMAGE` option to `wimlib-imagex capture` and
833 `wimlib-imagex append` has been fixed.
835 - A workaround has been added to successfully apply security descriptors with
836 empty DACLs when the NTFS-3G apply mode is being used with NTFS-3G 2013.1.13
839 - `wimlib-imagex capture` can now accept the `--delta-from` option multiple
844 - Added support for "pipable" WIMs. Pipable WIMs allow capturing images to
845 standard output and applying images from standard input, but they are not
846 compatible with Microsoft's software and are not created by default. See the
847 documentation for `--pipable` flag of `wimlib-imagex capture` for more
850 - To better support incremental backups, added support for declaring an image as
851 a modified form of another image. See the documentation for the `--update-of`
852 option of `wimlib-imagex append` and `wimlib-imagex capture`.
854 - Added supported for "delta" WIMs. See the documentation for the
855 `--delta-from` option of `wimlib-imagex capture`.
857 - The library support for managing split WIMs has been changed to support other
858 arrangements, such as delta WIMs, and be easier to use. This change is
859 visible in `wimlib-imagex`, which also can now accept the `--ref` option
860 multiple times, and also now supports "delta" WIMs as mentioned above.
862 - wimlib now preserves WIM integrity tables by default, even if
863 `WIMLIB_WRITE_FLAG_CHECK_INTEGRITY` is not specified. This changes the
864 behavior of `wimlib-imagex` whenever the WIM being operated on contains
865 an integrity table and the `--check` option is not specified.
867 - `wimlib-imagex capture` now creates LZX-compressed WIMs by default (when
868 `--compress` is not specified). This provides the best compression ratio by
869 default, which is usually what is desired, at a cost of some speed.
871 - `wimlib-imagex` now supports being invoked as `wimCOMMAND`, where `COMMAND` is
872 the command as in `wimlib-imagex COMMAND`; for example, it can be invoked as
873 `wimapply` as an alternative to `wimlib-imagex apply`. The appropriate hard
874 links are created in UNIX installations of `wimlib-imagex`, while for the
875 Windows distribution of `wimlib-imagex`, batch files that emulate this
876 behavior are generated.
878 - Security descriptors are now extracted correctly on Windows.
880 - Fixed archiving DOS names in NTFS-3G capture mode.
882 - The extraction code has been rewritten and it will now be easier to support
883 new features on all supported backends (currently Win32, UNIX, and NTFS-3G).
884 For example, hard-linked extraction mode (`--hardlink`) is now supported on
885 all backends, not just UNIX.
887 - `mkwinpeimg` now supports grabbing files from the WAIK supplement rather
888 than the WAIK itself.
890 - `wimlib_global_init()` now, by default, attempts to acquire additional
891 privileges on Windows, so library clients need not do this.
893 - This update bumps the shared library version number up to 9, since it is not
894 binary compatibible with previous releases.
898 - Fixed bug in `wimlib-imagex export` that made it impossible to export an image
899 from a WIM that is readonly at the filesystem level.
901 - Return error code rather than segfaulting when trying to list files from a
902 non-first part of a split WIM.
904 - Joining a WIM will now preserve the `RP_FIX` and `READONLY` flags.
908 - On Windows, paths given to `wimlib-imagex` are now treated case insensitively.
910 - Improved behavior regarding invalid filenames; in particular, on Windows,
911 `wimlib-imagex` will, when extracting, now omit (with an option to override
912 this default) filenames differing only in case, or filenames containing
913 characters not valid on Windows.
915 - On Windows, wimlib now supports capturing and extracting long paths (longer
916 than the so-called `MAX_PATH`).
918 - On Windows, `wimlib-imagex update` now acquires proper privileges when running
921 - `wimlib-imagex update` will now complain if no image is specified when trying
922 to update a multi-image WIM.
924 - `wimlib-imagex update` now supports specifying a single update command
925 directly on the command line using the `--command` option.
927 - `wimlib-imagex` will now choose different units for progress messages,
928 depending on the amount of data that needs to be processed.
930 - `wimlib-imagex append` will now generate a unique WIM image name if no name is
931 specified and the defaulted name already exists in the WIM.
933 - wimlib now allows you to create unnamed WIM images, which can then only be
934 referred to by index.
936 - wimlib now allows you to explicitly declare you want write access to a WIM by
937 providing the `WIMLIB_OPEN_FLAG_WRITE_ACCESS` flag to `wimlib_open_wim()`.
939 - wimlib now respects the `WIM_HDR_FLAG_READONLY` flag when set in the WIM header.
941 - Progress callbacks have been added to wimlib's `wimlib_update_image()`
944 - Added `wimlib_get_wim_info()`, `wimlib_set_wim_info()`,
945 `wimlib_iterate_dir_tree()`, and `wimlib_iterate_lookup_table()` functions to
948 - NTFS-3G capture now only warns about two conditions previously treated as
951 - Fixed a couple issues with using `wimlib-imagex` on UDF filesystems on
954 - wimlib now correctly detects and returns an error when reading a WIM image
955 with a cyclic directory structure. (Fun fact: such a WIM will crash
956 Microsoft's software.)
960 - Added new "extract" and "update" subcommands to `wimlib-imagex`, along with
961 associated APIs in the library. These commands are intended mainly for
962 Windows use but can be used on UNIX as well.
964 - Many documentation improvements.
966 - Fixed a bug in the Windows build where relative symbolic links were not
967 captured in reparse-point fixup mode.
969 - Fixed a bug in the Windows build where file handles were left open to the WIM
970 file, causing `wimlib-imagex optimize` to fail in some cases.
972 - Fixed a bug in the Windows build of `wimlib-imagex` where globbing split-WIM
973 parts could cause the program to crash.
975 - Fixed a bug where the creation time of WIM images would be shown instead of
976 the last modification time.
978 - With the Windows build it is now possible to restore a WIM containing symbolic
979 links as a non-Administrator; however you will receive warnings about not
980 being able to extract the symbolic links.
984 - Capturing a WIM image should now be significantly faster in most cases due to
985 improved use of the operating system's cache and avoiding reading files twice
988 - The Windows build should now work on Windows XP.
990 - The Windows build now supports capturing and restoring hidden, compressed,
991 sparse, and encrypted files.
993 - The Windows build now supports capturing and applying WIM images from
994 filesystems other than NTFS (with some reduced functionality).
996 - The Windows build now extracts short names correctly.
998 - Added support for "reparse-point" fixups (i.e. fixing up of symbolic links).
999 See docs for `--rpfix` and `--norpfix` flags of `wimlib-imagex capture` and
1000 `wimlib-imagex apply`.
1002 - The performance of splitting and joining WIMs should be slightly improved.
1004 - The LZX and XPRESS compression and decompression functions are now exported
1009 - Improvements and bugfixes for the Windows build.
1011 - Added `--strict-acls` options.
1013 - Fixed the way that wimlib determines the order of images in the WIM.
1017 - Since wimlib can now be used on Windows, wimlib's implementation of ImageX has
1018 been renamed to `wimlib-imagex` to avoid confusion with Microsoft's
1019 implementation of ImageX, which would have the same file name (`imagex.exe`).
1020 If you really don't like this you can pass the `--with-imagex-progname` option
1021 to `configure` to choose a different name, or even simply rename the binary
1022 yourself (but the former way will configure the man pages to use the chosen
1025 - Various bugs fixed in the Windows build. Mainly to do with capturing and
1026 restoring alternate data streams correctly in weird cases, and requesting the
1027 correct privileges when opening files. Also added the `--noacls` options to
1028 `wimlib-imagex` capture, append, and apply.
1030 - Windows build again: `FindFirstStreamW()` and `FindNextStreamW()` are now
1031 dynamically loaded, so this may make the library compatible with Windows XP
1032 (however, there may still be other problems).
1036 - Added experimental support for native Windows builds. Binaries can be
1037 downloaded from the SourceForge page.
1039 - `--source-list` option added to `imagex capture` and `imagex append`.
1041 - Better support for different character encodings.
1045 - Storing UNIX file owners, groups, and modes in WIM images is now
1046 - possible using `imagex capture` with the `--unix-data` flag.
1048 - Minor bug fixes and documentation fixes.
1052 - NTFS capture: Fixed capturing duplicate reparse points.
1054 - NTFS capture: Capture first unnamed stream if there are more than one (print
1055 warning instead of error).
1057 - Allow multiple test cases to execute concurrently (e.g. `make -j2 check`).
1061 - Added `--arch` switch to mkwinpeimg script to support getting AMD64 WinPE from
1064 - Update to work with ntfs-3g version 2013.1.13.
1068 - Fixed truncating file to shorter but non-zero length on read-write mounted WIM
1071 - Various code cleanups and minor documentation fixes.
1075 - LZX and XPRESS decompression have received some additional optimizations and
1076 should now be even faster. (Although, they were already pretty fast --- much
1077 faster than typical I/O speeds.)
1079 - Fixed a bug introduced in v1.2.1 that would cause a directory tree containing
1080 hard links to be captured incorrectly in some cases.
1084 - By default, unmounting a read-write mounted WIM with `imagex unmount --commit`
1085 will now change the WIM in-place without needing to write the entire WIM
1086 again. Use `imagex unmount --commit --rebuild` to get the old behavior.
1088 - `imagex unmount` no longer has a hard-coded limit of 10 minutes to wait for a
1089 response from the daemon servicing the mounted WIM. Instead, every second
1090 `imagex unmount` will check if the daemon is still alive, and keep waiting if
1091 so, otherwise terminate with an error.
1093 - `imagex unmount --commit` on a read-write mounted WIM will now print progress
1094 information regarding the writing of new or modified streams the WIM, just
1095 like when capturing or appending a WIM.
1097 - A small change has been made to XPRESS compression and it should improve the
1098 compression ratio slightly.
1100 - A change was made that may improve performance slightly when applying a WIM
1101 image to a NTFS volume.
1103 - Microsoft has managed to introduce even more bugs into their software, and now
1104 the WIMs for Windows 8 have incorrect (too low) reference counts for some
1105 streams. This is unsafe because such streams can be removed when they are in
1106 actuality still referenced in the WIM (perhaps by a different image). wimlib
1107 will now work around this problem by fixing the stream reference counts. This
1108 is only done when `wimlib_delete_image()` is called (`imagex delete`) or when
1109 `wimlib_mount_image()` is called with `WIMLIB_MOUNT_FLAG_READWRITE` (`imagex
1110 mountrw`). Please note that this requires reading the metadata for all images
1111 in the WIM, so this will make these operations noticably slower on WIMs with
1114 - Various other bugfixes.
1118 - Appending images to a WIM is now be done by default without re-building the
1119 whole WIM. Use the `--rebuild` flag to get the old behavior (which was to
1120 re-build the entire WIM when a new image is appended).
1122 - A new command `imagex optimize` is now available to manually re-build a WIM
1123 that has wasted space due to repeated appends.
1125 - Progress information has been improved, and now arbitrary callback functions
1126 can be used to show the progress of a WIM operation.
1128 - A possible bug with changing the bootable image of a WIM was fixed.
1130 - Some advisory locking is now done to prevent two processes from modifying a
1131 WIM at the same time (but only in some cases). For example, you cannot mount
1132 two images from a WIM read-write at the same time.
1134 - Some functions have been reorganized:
1135 - `wimlib_mount()` renamed to `wimlib_mount_image()`.
1136 - `wimlib_unmount()` renamed to `wimlib_unmount_image()`.
1137 - `wimlib_overwrite_xml_and_header()` removed as `wimlib_overwrite()` suffices
1139 - `wimlib_apply_image_to_ntfs_volume()` removed as `wimlib_extract_image()`
1141 - `wimlib_add_image_from_ntfs_volume()` removed as `wimlib_add_image()`
1144 - Previously, the soname of libwim.so has been 0.0.0, despite many interface
1145 changes. The soname is now updated to 1.0.0 and will now be updated each
1150 - Resources will now be compressed using multiple threads by default. (This
1151 applies to `imagex capture`, `imagex append`, and `imagex export`).
1153 - Some performance improvements in mounted WIMs.
1155 - More progress information is shown when capturing a WIM.
1159 - Lots of minor fixes, code cleanups, and some documentation updates. Nothing
1160 in particular is really noteworthy.
1164 - LZX and XPRESS compression improvements.
1166 - Fixed calculation of Directory Count, File Count, Total Bytes, and Hard Link
1171 - Fixed bug when capturing NTFS file with multiple named data streams.
1173 - Internally, we are now using inode structures, even though these don't appear
1174 literally in the WIM file. This simplifies some of the code (mainly for WIM
1175 mounting) and likely fixed a few problems, although it needs more testing.
1179 - Fixed problem when exporting images from XPRESS to LZX compressed WIM or vice
1184 - Enough changes to call it version 1.0.0!
1186 - Capturing a WIM directly from a NTFS volume, and applying a WIM directly to a
1187 NTFS volume, is now supported.
1189 - Hard links and symbolic links have much improved support. They are supported
1190 for WIM capture, WIM application, and mounted WIMs (you can even make them on
1191 read-write mounted WIMs).
1193 - Alternate data streams are now supported on mounted WIMs through an xattr or a
1194 Windows-style stream interface. Also they are supported when capturing a WIM
1195 from NTFS or applying a WIM to NTFS.
1197 - Split WIMs are better supported. You may now apply an image directly from a
1198 split WIM, mount an image from a split WIM read-only, or export an image from
1201 - Using a capture configuration file is now supported (but not fully yet).
1203 - SHA1 message digests are checked in more places, so we can make sure applied
1204 and captured data is correct.
1206 - Man pages have been updated and consolidated.
1210 - Fixed segfault when unmounting read-only WIM.
1214 - Support for joining and splitting WIMs.
1216 - Also, security data is now preserved by default.
1220 - Can now build with older gcc and system headers, like on CentOS 5.
1224 - Fixed bug that made it impossible to overwrite files in read-write mount.
1228 - Write byte-order mark before WIM XML data. (`imagex.exe` requires this to be