1 Only the most important changes more recent than version 0.6 are noted here.
4 Added a new experimental LZX compressor which can be enabled by passing
5 '--compress-slow' to `wimlib-imagex capture' or `wimlib-imagex
6 optimize'. (The latter is only applicable if the WIM is already
7 LZX-compressed and the '--recompress' option is also given.) The
8 experimental compressor is much slower but compresses the data slightly
9 more --- currently usually to within a fraction of a percent of the
10 results from WIMGAPI/ImageX.
12 An alignment bug that caused a crash in the LZX decompressor on some
15 wimlib now attempts to clear the WIM_HDR_FLAG_WRITE_IN_PROGRESS flag in
16 the WIM header when restoring the previous state of a WIM it failed to
19 A workaround has been added for compatibility with versions of WinPE
20 that interpret alternate data stream entries in the boot WIM
24 wimlib can now open WinPE WIMs from WAIK v2.1, which had a quirk that
27 A bug in the interpretation of negative IMAGE indices in the
28 --update-of=[WIMFILE:]IMAGE option to `wimlib-imagex capture' and
29 `wimlib-imagex append' has been fixed.
31 A workaround has been added to successfully apply security descriptors
32 with empty DACLs when the NTFS-3g apply mode is being used with NTFS-3g
35 `wimlib-imagex capture' can now accept the '--delta-from' option
39 Added support for "pipable" WIMs. Pipable WIMs allow capturing images
40 to standard output and applying images from standard input, but they are
41 not compatible with Microsoft's software and are not created by default.
42 See the documentation for --pipable flag of `wimlib-imagex capture' for
45 To better support incremental backups, added support for declaring an
46 image as a modified form of another image. See the documentation for
47 the '--update-of' option of `wimlib-imagex append' and `wimlib-imagex
50 Added supported for "delta" WIMs. See the documentation for the
51 '--delta-from' option of `wimlib-imagex capture'.
53 The library support for managing split WIMs has been changed to support
54 other arrangements, such as delta WIMs, and be easier to use. This
55 change is visible in `wimlib-imagex', which also can now accept the
56 '--ref' option multiple times, and also now supports "delta" WIMs as
59 wimlib now preserves WIM integrity tables by default, even if
60 WIMLIB_WRITE_FLAG_CHECK_INTEGRITY is not specified. This changes the
61 behavior of `wimlib-imagex' whenever the WIM being operated on contains
62 an integrity table and the '--check' option is not specified.
64 `wimlib-imagex capture' now creates LZX-compressed WIMs by default
65 (when --compress is not specified). This provides the best compression
66 ratio by default, which is usually what is desired, at a cost of some
69 `wimlib-imagex' now supports being invoked as wimCOMMAND, where COMMAND
70 is the command as in `wimlib-imagex COMMAND'; for example, it can be
71 invoked as `wimapply' as an alternative to `wimlib-imagex apply'. The
72 appropriate hard links are created in UNIX installations of
73 `wimlib-imagex', while for the Windows distribution of `wimlib-imagex',
74 batch files that emulate this behavior are generated.
76 Security descriptors are now extracted correctly on Windows.
78 Fixed archiving DOS names in NTFS-3g capture mode.
80 The extraction code has been rewritten and it will now be easier to
81 support new features on all supported backends (currently Win32, UNIX,
82 and NTFS-3g). For example, hard-linked extraction mode (--hardlink) is
83 now supported on all backends, not just UNIX.
85 `mkwinpeimg' now supports grabbing files from the WAIK supplement rather
88 wimlib_global_init() now, by default, attempts to acquire additional
89 privileges on Windows, so library clients need not do this.
91 This update bumps the shared library version number up to 9, since it is
92 not binary compatibible with previous releases.
95 Fixed bug in `wimlib-imagex export' that made it impossible to export an
96 image from a WIM that is readonly at the filesystem level.
98 Return error code rather than segfaulting when trying to list files from
99 a non-first part of a split WIM.
101 Joining a WIM will now preserve the RP_FIX and READONLY flags.
104 On Windows, paths given to wimlib-imagex are now treated case
107 Improved behavior regarding invalid filenames; in particular, on
108 Windows, wimlib-imagex will, when extracting, now omit (with an option
109 to override this default) filenames differing only in case, or filenames
110 containing characters not valid on Windows.
112 On Windows, wimlib now supports capturing and extracting long paths
113 (longer than the so-called MAX_PATH).
115 On Windows, `wimlib-imagex update' now acquires proper privileges when
116 running as an Administrator.
118 `wimlib-imagex update' will now complain if no image is specified when
119 trying to update a multi-image WIM.
121 `wimlib-imagex update' now supports specifying a single update command
122 directly on the command line using the --command option.
124 wimlib-imagex will now choose different units for progress messages,
125 depending on the amount of data that needs to be processed.
127 `wimlib-imagex append' will now generate a unique WIM image name if no
128 name is specified and the defaulted name already exists in the WIM.
130 wimlib now allows you to create unnamed WIM images, which can then only
131 be referred to by index.
133 wimlib now allows you to explicitly declare you want write access to a
134 WIM by providing the WIMLIB_OPEN_FLAG_WRITE_ACCESS flag to
137 wimlib now respects the WIM_HDR_FLAG_READONLY flag when set in the WIM
140 Progress callbacks have been added to wimlib's wimlib_update_image()
143 Added wimlib_get_wim_info(), wimlib_set_wim_info(),
144 wimlib_iterate_dir_tree(), and wimlib_iterate_lookup_table() functions
147 NTFS-3g capture now only warns about two conditions previously treated
150 Fixed a couple issues with using wimlib-imagex on UDF filesystems on
153 wimlib now correctly detects and returns an error when reading a WIM
154 image with a cyclic directory structure. (Fun fact: such a WIM will
155 crash Microsoft's software.)
158 Added new "extract" and "update" subcommands to wimlib-imagex, along
159 with associated APIs in the library. These commands are intended mainly
160 for Windows use but can be used on UNIX as well.
162 Many documentation improvements.
164 Fixed a bug in the Windows build where relative symbolic links were not
165 captured in reparse-point fixup mode.
167 Fixed a bug in the Windows build where file handles were left open to
168 the WIM file, causing `wimlib_imagex optimize' to fail in some cases.
170 Fixed a bug in the Windows build of wimlib-imagex where globbing
171 split-WIM parts could cause the program to crash.
173 Fixed a bug where the creation time of WIM images would be shown instead
174 of the last modification time.
176 With the Windows build it is now possible to restore a WIM containing
177 symbolic links as a non-Administrator; however you will receive warnings
178 about not being able to extract the symbolic links.
181 Capturing a WIM image should now be significantly faster in most cases
182 due to improved use of the operating system's cache and avoiding reading
183 files twice whenever possible.
185 The Windows build should now work on Windows XP.
187 The Windows build now supports capturing and restoring hidden,
188 compressed, sparse, and encrypted files.
190 The Windows build now supports capturing and applying WIM images from
191 filesystems other than NTFS (with some reduced functionality).
193 The Windows build now extracts short names correctly.
195 Added support for "reparse-point" fixups (i.e. fixing up of symbolic
196 links). See docs for --rpfix and --norpfix flags of `wimlib-imagex
197 capture' and `wimlib-imagex apply'.
199 The performance of splitting and joining WIMs should be slightly
202 The LZX and XPRESS compression and decompression functions are now
203 exported from the library.
206 Improvements and bugfixes for the Windows build.
208 Added --strict-acls options.
210 Fixed the way that wimlib determines the order of images in the WIM.
213 Since wimlib can now be used on Windows, wimlib's implementation of
214 ImageX has been renamed to wimlib-imagex to avoid confusion with
215 Microsoft's implementation of ImageX, which would have the same file
216 name ("imagex.exe"). If you really don't like this you can pass the
217 --with-imagex-progname option to `configure' to choose a different name,
218 or even simply rename the binary yourself (but the former way will
219 configure the man pages to use the chosen name).
221 Various bugs fixed in the Windows build. Mainly to do with capturing
222 and restoring alternate data streams correctly in weird cases, and
223 requesting the correct privileges when opening files. Also added the
224 --noacls options to wimlib-imagex capture, append, and apply.
226 Windows build again: FindFirstStreamW() and FindNextStreamW() are now
227 dynamically loaded, so this may make the library compatible with Windows
228 XP (however, there may still be other problems).
231 Added experimental support for native Windows builds. Binaries can be
232 downloaded from the SourceForge page.
234 --source-list option added to `imagex capture' and `imagex append'.
236 Better support for different character encodings.
239 Storing UNIX file owners, groups, and modes in WIM images is now
240 possible using `imagex capture' with the --unix-data flag.
242 Minor bug fixes and documentation fixes.
245 NTFS capture: Fixed capturing duplicate reparse points.
247 NTFS capture: Capture first unnamed stream if there are more than one
248 (print warning instead of error).
250 Allow multiple test cases to execute concurrently (e.g. make -j2 check).
253 Added --arch switch to mkwinpeimg script to support getting AMD64 WinPE
256 Update to work with ntfs-3g version 2013.1.13.
259 Fixed truncating file to shorter but non-zero length on read-write
262 Various code cleanups and minor documentation fixes.
265 LZX and XPRESS decompression have received some additional optimizations
266 and should now be even faster. (Although, they were already pretty
267 fast--- much faster than typical I/O speeds.)
269 Fixed a bug introduced in v1.2.1 that would cause a directory tree
270 containing hard links to be captured incorrectly in some cases.
273 By default, unmounting a read-write mounted WIM with 'imagex unmount
274 --commit' will now change the WIM in-place without needing to write the
275 entire WIM again. Use 'imagex unmount --commit --rebuild' to get the
278 'imagex unmount' no longer has a hard-coded limit of 10 minutes to wait
279 for a response from the daemon servicing the mounted WIM. Instead,
280 every second 'imagex unmount' will check if the daemon is still alive,
281 and keep waiting if so, otherwise terminate with an error.
283 'imagex unmount --commit' on a read-write mounted WIM will now print
284 progress information regarding the writing of new or modified streams
285 the WIM, just like when capturing or appending a WIM.
287 A small change has been made to XPRESS compression and it should improve
288 the compression ratio slightly.
290 A change was made that may improve performance slightly when applying a
291 WIM image to a NTFS volume.
293 Microsoft has managed to introduce even more bugs into their software,
294 and now the WIMs for Windows 8 have incorrect (too low) reference counts
295 for some streams. This is unsafe because such streams can be removed
296 when they are in actuality still referenced in the WIM (perhaps by a
297 different image). wimlib will now work around this problem by fixing
298 the stream reference counts. This is only done when wimlib_delete_image() is
299 called ('imagex delete') or when wimlib_mount_image() is called with
300 WIMLIB_MOUNT_FLAG_READWRITE ('imagex mountrw'). Please note that this
301 requires reading the metadata for all images in the WIM, so this will
302 make these operations noticably slower on WIMs with multiple images.
304 Various other bugfixes.
307 Appending images to a WIM is now be done by default without re-building
308 the whole WIM. Use the --rebuild flag to get the old behavior (which
309 was to re-build the entire WIM when a new image is appended).
311 A new command `imagex optimize' is now available to manually re-build a
312 WIM that has wasted space due to repeated appends.
314 Progress information has been improved, and now arbitrary callback
315 functions can be used to show the progress of a WIM operation.
317 A possible bug with changing the bootable image of a WIM was fixed.
319 Some advisory locking is now done to prevent two processes from
320 modifying a WIM at the same time (but only in some cases). For example,
321 you cannot mount two images from a WIM read-write at the same time.
323 Some functions have been reorganized:
324 * wimlib_mount() renamed to wimlib_mount_image().
325 * wimlib_unmount() renamed to wimlib_unmount_image().
326 * wimlib_overwrite_xml_and_header() removed as
327 wimlib_overwrite() suffices now.
328 * wimlib_apply_image_to_ntfs_volume() removed as
329 wimlib_extract_image() suffices now.
330 * wimlib_add_image_from_ntfs_volume() removed as
331 * wimlib_add_image() suffices now.
333 Previously, the soname of libwim.so has been 0.0.0, despite many
334 interface changes. The soname is now updated to 1.0.0 and will now be
335 updated each release.
338 Resources will now be compressed using multiple threads by default.
339 (This applies to `imagex capture', `imagex append', and `imagex
342 Some performance improvements in mounted WIMs.
344 More progress information is shown when capturing a WIM.
347 Lots of minor fixes, code cleanups, and some documentation updates.
348 Nothing in particular is really noteworthy.
351 LZX and XPRESS compression improvements.
353 Fixed calculation of Directory Count, File Count, Total Bytes, and Hard
354 Link Bytes of the WIM.
357 Fixed bug when capturing NTFS file with multiple named data streams.
359 Internally, we are now using inode structures, even though these don't
360 appear literally in the WIM file. This simplifies some of the code
361 (mainly for WIM mounting) and likely fixed a few problems, although it
365 Fixed problem when exporting images from XPRESS to LZX compressed WIM or
369 Enough changes to call it version 1.0.0!
371 Capturing a WIM directly from a NTFS volume, and applying a WIM directly
372 to a NTFS volume, is now supported.
374 Hard links and symbolic links have much improved support. They are
375 supported for WIM capture, WIM application, and mounted WIMs (you can
376 even make them on read-write mounted WIMs).
378 Alternate data streams are now supported on mounted WIMs through an
379 xattr or a Windows-style stream interface. Also they are supported when
380 capturing a WIM from NTFS or applying a WIM to NTFS.
382 Split WIMs are better supported. You may now apply an image directly
383 from a split WIM, mount an image from a split WIM read-only, or export
384 an image from a split WIM.
386 Using a capture configuration file is now supported (but not fully yet).
388 SHA1 message digests are checked in more places, so we can make sure
389 applied and captured data is correct.
391 Man pages have been updated and consolidated.
394 Fixed segfault when unmounting read-only WIM.
397 Support for joining and splitting WIMs.
398 Also, security data is now preserved by default.
401 Can now build with older gcc and system headers, like on CentOS 5.
404 Fixed bug that made it impossible to overwrite files in read-write
408 Write byte-order mark before WIM XML data. (imagex.exe requires this to