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