1 Only the most important changes more recent than version 0.6 are noted here.
4 wimlib can now open WinPE WIMs from WAIK v2.1, which had a quirk that
8 Added support for "pipable" WIMs. Pipable WIMs allow capturing images
9 to standard output and applying images from standard input, but they are
10 not compatible with Microsoft's software and are not created by default.
11 See the documentation for --pipable flag of `wimlib-imagex capture' for
14 To better support incremental backups, added support for declaring an
15 image as a modified form of another image. See the documentation for
16 the '--update-of' option of `wimlib-imagex append' and `wimlib-imagex
19 Added supported for "delta" WIMs. See the documentation for the
20 '--delta-from' option of `wimlib-imagex capture'.
22 The library support for managing split WIMs has been changed to support
23 other arrangements, such as delta WIMs, and be easier to use. This
24 change is visible in `wimlib-imagex', which also can now accept the
25 '--ref' option multiple times, and also now supports "delta" WIMs as
28 wimlib now preserves WIM integrity tables by default, even if
29 WIMLIB_WRITE_FLAG_CHECK_INTEGRITY is not specified. This changes the
30 behavior of `wimlib-imagex' whenever the WIM being operated on contains
31 an integrity table and the '--check' option is not specified.
33 `wimlib-imagex capture' now creates LZX-compressed WIMs by default
34 (when --compress is not specified). This provides the best compression
35 ratio by default, which is usually what is desired, at a cost of some
38 `wimlib-imagex' now supports being invoked as wimCOMMAND, where COMMAND
39 is the command as in `wimlib-imagex COMMAND'; for example, it can be
40 invoked as `wimapply' as an alternative to `wimlib-imagex apply'. The
41 appropriate hard links are created in UNIX installations of
42 `wimlib-imagex', while for the Windows distribution of `wimlib-imagex',
43 batch files that emulate this behavior are generated.
45 Security descriptors are now extracted correctly on Windows.
47 Fixed archiving DOS names in NTFS-3g capture mode.
49 The extraction code has been rewritten and it will now be easier to
50 support new features on all supported backends (currently Win32, UNIX,
51 and NTFS-3g). For example, hard-linked extraction mode (--hardlink) is
52 now supported on all backends, not just UNIX.
54 `mkwinpeimg' now supports grabbing files from the WAIK supplement rather
57 wimlib_global_init() now, by default, attempts to acquire additional
58 privileges on Windows, so library clients need not do this.
60 This update bumps the shared library version number up to 9, since it is
61 not binary compatibible with previous releases.
64 Fixed bug in `wimlib-imagex export' that made it impossible to export an
65 image from a WIM that is readonly at the filesystem level.
67 Return error code rather than segfaulting when trying to list files from
68 a non-first part of a split WIM.
70 Joining a WIM will now preserve the RP_FIX and READONLY flags.
73 On Windows, paths given to wimlib-imagex are now treated case
76 Improved behavior regarding invalid filenames; in particular, on
77 Windows, wimlib-imagex will, when extracting, now omit (with an option
78 to override this default) filenames differing only in case, or filenames
79 containing characters not valid on Windows.
81 On Windows, wimlib now supports capturing and extracting long paths
82 (longer than the so-called MAX_PATH).
84 On Windows, `wimlib-imagex update' now acquires proper privileges when
85 running as an Administrator.
87 `wimlib-imagex update' will now complain if no image is specified when
88 trying to update a multi-image WIM.
90 `wimlib-imagex update' now supports specifying a single update command
91 directly on the command line using the --command option.
93 wimlib-imagex will now choose different units for progress messages,
94 depending on the amount of data that needs to be processed.
96 `wimlib-imagex append' will now generate a unique WIM image name if no
97 name is specified and the defaulted name already exists in the WIM.
99 wimlib now allows you to create unnamed WIM images, which can then only
100 be referred to by index.
102 wimlib now allows you to explicitly declare you want write access to a
103 WIM by providing the WIMLIB_OPEN_FLAG_WRITE_ACCESS flag to
106 wimlib now respects the WIM_HDR_FLAG_READONLY flag when set in the WIM
109 Progress callbacks have been added to wimlib's wimlib_update_image()
112 Added wimlib_get_wim_info(), wimlib_set_wim_info(),
113 wimlib_iterate_dir_tree(), and wimlib_iterate_lookup_table() functions
116 NTFS-3g capture now only warns about two conditions previously treated
119 Fixed a couple issues with using wimlib-imagex on UDF filesystems on
122 wimlib now correctly detects and returns an error when reading a WIM
123 image with a cyclic directory structure. (Fun fact: such a WIM will
124 crash Microsoft's software.)
127 Added new "extract" and "update" subcommands to wimlib-imagex, along
128 with associated APIs in the library. These commands are intended mainly
129 for Windows use but can be used on UNIX as well.
131 Many documentation improvements.
133 Fixed a bug in the Windows build where relative symbolic links were not
134 captured in reparse-point fixup mode.
136 Fixed a bug in the Windows build where file handles were left open to
137 the WIM file, causing `wimlib_imagex optimize' to fail in some cases.
139 Fixed a bug in the Windows build of wimlib-imagex where globbing
140 split-WIM parts could cause the program to crash.
142 Fixed a bug where the creation time of WIM images would be shown instead
143 of the last modification time.
145 With the Windows build it is now possible to restore a WIM containing
146 symbolic links as a non-Administrator; however you will receive warnings
147 about not being able to extract the symbolic links.
150 Capturing a WIM image should now be significantly faster in most cases
151 due to improved use of the operating system's cache and avoiding reading
152 files twice whenever possible.
154 The Windows build should now work on Windows XP.
156 The Windows build now supports capturing and restoring hidden,
157 compressed, sparse, and encrypted files.
159 The Windows build now supports capturing and applying WIM images from
160 filesystems other than NTFS (with some reduced functionality).
162 The Windows build now extracts short names correctly.
164 Added support for "reparse-point" fixups (i.e. fixing up of symbolic
165 links). See docs for --rpfix and --norpfix flags of `wimlib-imagex
166 capture' and `wimlib-imagex apply'.
168 The performance of splitting and joining WIMs should be slightly
171 The LZX and XPRESS compression and decompression functions are now
172 exported from the library.
175 Improvements and bugfixes for the Windows build.
177 Added --strict-acls options.
179 Fixed the way that wimlib determines the order of images in the WIM.
182 Since wimlib can now be used on Windows, wimlib's implementation of
183 ImageX has been renamed to wimlib-imagex to avoid confusion with
184 Microsoft's implementation of ImageX, which would have the same file
185 name ("imagex.exe"). If you really don't like this you can pass the
186 --with-imagex-progname option to `configure' to choose a different name,
187 or even simply rename the binary yourself (but the former way will
188 configure the man pages to use the chosen name).
190 Various bugs fixed in the Windows build. Mainly to do with capturing
191 and restoring alternate data streams correctly in weird cases, and
192 requesting the correct privileges when opening files. Also added the
193 --noacls options to wimlib-imagex capture, append, and apply.
195 Windows build again: FindFirstStreamW() and FindNextStreamW() are now
196 dynamically loaded, so this may make the library compatible with Windows
197 XP (however, there may still be other problems).
200 Added experimental support for native Windows builds. Binaries can be
201 downloaded from the SourceForge page.
203 --source-list option added to `imagex capture' and `imagex append'.
205 Better support for different character encodings.
208 Storing UNIX file owners, groups, and modes in WIM images is now
209 possible using `imagex capture' with the --unix-data flag.
211 Minor bug fixes and documentation fixes.
214 NTFS capture: Fixed capturing duplicate reparse points.
216 NTFS capture: Capture first unnamed stream if there are more than one
217 (print warning instead of error).
219 Allow multiple test cases to execute concurrently (e.g. make -j2 check).
222 Added --arch switch to mkwinpeimg script to support getting AMD64 WinPE
225 Update to work with ntfs-3g version 2013.1.13.
228 Fixed truncating file to shorter but non-zero length on read-write
231 Various code cleanups and minor documentation fixes.
234 LZX and XPRESS decompression have received some additional optimizations
235 and should now be even faster. (Although, they were already pretty
236 fast--- much faster than typical I/O speeds.)
238 Fixed a bug introduced in v1.2.1 that would cause a directory tree
239 containing hard links to be captured incorrectly in some cases.
242 By default, unmounting a read-write mounted WIM with 'imagex unmount
243 --commit' will now change the WIM in-place without needing to write the
244 entire WIM again. Use 'imagex unmount --commit --rebuild' to get the
247 'imagex unmount' no longer has a hard-coded limit of 10 minutes to wait
248 for a response from the daemon servicing the mounted WIM. Instead,
249 every second 'imagex unmount' will check if the daemon is still alive,
250 and keep waiting if so, otherwise terminate with an error.
252 'imagex unmount --commit' on a read-write mounted WIM will now print
253 progress information regarding the writing of new or modified streams
254 the WIM, just like when capturing or appending a WIM.
256 A small change has been made to XPRESS compression and it should improve
257 the compression ratio slightly.
259 A change was made that may improve performance slightly when applying a
260 WIM image to a NTFS volume.
262 Microsoft has managed to introduce even more bugs into their software,
263 and now the WIMs for Windows 8 have incorrect (too low) reference counts
264 for some streams. This is unsafe because such streams can be removed
265 when they are in actuality still referenced in the WIM (perhaps by a
266 different image). wimlib will now work around this problem by fixing
267 the stream reference counts. This is only done when wimlib_delete_image() is
268 called ('imagex delete') or when wimlib_mount_image() is called with
269 WIMLIB_MOUNT_FLAG_READWRITE ('imagex mountrw'). Please note that this
270 requires reading the metadata for all images in the WIM, so this will
271 make these operations noticably slower on WIMs with multiple images.
273 Various other bugfixes.
276 Appending images to a WIM is now be done by default without re-building
277 the whole WIM. Use the --rebuild flag to get the old behavior (which
278 was to re-build the entire WIM when a new image is appended).
280 A new command `imagex optimize' is now available to manually re-build a
281 WIM that has wasted space due to repeated appends.
283 Progress information has been improved, and now arbitrary callback
284 functions can be used to show the progress of a WIM operation.
286 A possible bug with changing the bootable image of a WIM was fixed.
288 Some advisory locking is now done to prevent two processes from
289 modifying a WIM at the same time (but only in some cases). For example,
290 you cannot mount two images from a WIM read-write at the same time.
292 Some functions have been reorganized:
293 * wimlib_mount() renamed to wimlib_mount_image().
294 * wimlib_unmount() renamed to wimlib_unmount_image().
295 * wimlib_overwrite_xml_and_header() removed as
296 wimlib_overwrite() suffices now.
297 * wimlib_apply_image_to_ntfs_volume() removed as
298 wimlib_extract_image() suffices now.
299 * wimlib_add_image_from_ntfs_volume() removed as
300 * wimlib_add_image() suffices now.
302 Previously, the soname of libwim.so has been 0.0.0, despite many
303 interface changes. The soname is now updated to 1.0.0 and will now be
304 updated each release.
307 Resources will now be compressed using multiple threads by default.
308 (This applies to `imagex capture', `imagex append', and `imagex
311 Some performance improvements in mounted WIMs.
313 More progress information is shown when capturing a WIM.
316 Lots of minor fixes, code cleanups, and some documentation updates.
317 Nothing in particular is really noteworthy.
320 LZX and XPRESS compression improvements.
322 Fixed calculation of Directory Count, File Count, Total Bytes, and Hard
323 Link Bytes of the WIM.
326 Fixed bug when capturing NTFS file with multiple named data streams.
328 Internally, we are now using inode structures, even though these don't
329 appear literally in the WIM file. This simplifies some of the code
330 (mainly for WIM mounting) and likely fixed a few problems, although it
334 Fixed problem when exporting images from XPRESS to LZX compressed WIM or
338 Enough changes to call it version 1.0.0!
340 Capturing a WIM directly from a NTFS volume, and applying a WIM directly
341 to a NTFS volume, is now supported.
343 Hard links and symbolic links have much improved support. They are
344 supported for WIM capture, WIM application, and mounted WIMs (you can
345 even make them on read-write mounted WIMs).
347 Alternate data streams are now supported on mounted WIMs through an
348 xattr or a Windows-style stream interface. Also they are supported when
349 capturing a WIM from NTFS or applying a WIM to NTFS.
351 Split WIMs are better supported. You may now apply an image directly
352 from a split WIM, mount an image from a split WIM read-only, or export
353 an image from a split WIM.
355 Using a capture configuration file is now supported (but not fully yet).
357 SHA1 message digests are checked in more places, so we can make sure
358 applied and captured data is correct.
360 Man pages have been updated and consolidated.
363 Fixed segfault when unmounting read-only WIM.
366 Support for joining and splitting WIMs.
367 Also, security data is now preserved by default.
370 Can now build with older gcc and system headers, like on CentOS 5.
373 Fixed bug that made it impossible to overwrite files in read-write
377 Write byte-order mark before WIM XML data. (imagex.exe requires this to