mirror of https://github.com/borgbackup/borg.git
Merge pull request #5018 from ThomasWaldmann/update-changes-from-1.1
update changes.rst from 1.1-maint branch, fixes #5006
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docs/changes.rst
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docs/changes.rst
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@ -6,6 +6,53 @@ Important notes
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This section provides information about security and corruption issues.
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.. _hashindex_set_bug:
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Pre-1.1.11 potential index corruption / data loss issue
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-------------------------------------------------------
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A bug was discovered in our hashtable code, see issue #4829.
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The code is used for the client-side chunks cache and the server-side repo index.
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Although borg uses the hashtables very heavily, the index corruption did not
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happen too frequently, because it needed specific conditions to happen.
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Data loss required even more specific conditions, so it should be rare (and
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also detectable via borg check).
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You might be affected if borg crashed with / complained about:
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- AssertionError: Corrupted segment reference count - corrupted index or hints
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- ObjectNotFound: Object with key ... not found in repository ...
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- Index mismatch for key b'...'. (..., ...) != (-1, -1)
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- ValueError: stats_against: key contained in self but not in master_index.
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Advised procedure to fix any related issue in your indexes/caches:
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- install fixed borg code (on client AND server)
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- for all of your clients and repos remove the cache by:
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borg delete --cache-only YOURREPO
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(later, the cache will be re-built automatically)
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- for all your repos, rebuild the repo index by:
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borg check --repair YOURREPO
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This will also check all archives and detect if there is any data-loss issue.
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Affected branches / releases:
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- fd06497 introduced the bug into 1.1-maint branch - it affects all borg 1.1.x since 1.1.0b4.
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- fd06497 introduced the bug into master branch - it affects all borg 1.2.0 alpha releases.
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- c5cd882 introduced the bug into 1.0-maint branch - it affects all borg 1.0.x since 1.0.11rc1.
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The bug was fixed by:
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- 701159a fixes the bug in 1.1-maint branch - will be released with borg 1.1.11.
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- fa63150 fixes the bug in master branch - will be released with borg 1.2.0a8.
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- 7bb90b6 fixes the bug in 1.0-maint branch. Branch is EOL, no new release is planned as of now.
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.. _broken_validator:
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Pre-1.1.4 potential data corruption issue
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@ -470,6 +517,189 @@ Other changes:
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- vagrant: new VMs for linux/bsd/darwin, most with OpenSSL 1.1 and py36
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Version 1.1.11 (2020-03-08)
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---------------------------
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Compatibility notes:
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- When upgrading from borg 1.0.x to 1.1.x, please note:
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- read all the compatibility notes for 1.1.0*, starting from 1.1.0b1.
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- borg upgrade: you do not need to and you also should not run it.
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- borg might ask some security-related questions once after upgrading.
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You can answer them either manually or via environment variable.
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One known case is if you use unencrypted repositories, then it will ask
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about a unknown unencrypted repository one time.
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- your first backup with 1.1.x might be significantly slower (it might
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completely read, chunk, hash a lot files) - this is due to the
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--files-cache mode change (and happens every time you change mode).
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You can avoid the one-time slowdown by using the pre-1.1.0rc4-compatible
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mode (but that is less safe for detecting changed files than the default).
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See the --files-cache docs for details.
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- 1.1.11 removes WSL autodetection (Windows 10 Subsystem for Linux).
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If WSL still has a problem with sync_file_range, you need to set
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BORG_WORKAROUNDS=basesyncfile in the borg process environment to
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work around the WSL issue.
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Fixes:
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- fixed potential index corruption / data loss issue due to bug in hashindex_set, #4829.
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Please read and follow the more detailled notes close to the top of this document.
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- upgrade bundled xxhash to 0.7.3, #4891.
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0.7.2 is the minimum requirement for correct operations on ARMv6 in non-fixup
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mode, where unaligned memory accesses cause bus errors.
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0.7.3 adds some speedups and libxxhash 0.7.3 even has a pkg-config file now.
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- upgrade bundled lz4 to 1.9.2
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- upgrade bundled zstd to 1.4.4
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- fix crash when upgrading erroneous hints file, #4922
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- extract:
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- fix KeyError for "partial" extraction, #4607
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- fix "partial" extract for hardlinked contentless file types, #4725
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- fix preloading for old (0.xx) remote servers, #4652
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- fix confusing output of borg extract --list --strip-components, #4934
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- delete: after double-force delete, warn about necessary repair, #4704
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- create: give invalid repo error msg if repo config not found, #4411
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- mount: fix FUSE mount missing st_birthtime, #4763 #4767
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- check: do not stumble over invalid item key, #4845
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- info: if the archive doesn't exist, print a pretty message, #4793
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- SecurityManager.known(): check all files, #4614
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- Repository.open: use stat() to check for repo dir, #4695
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- Repository.check_can_create_repository: use stat() to check, #4695
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- fix invalid archive error message
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- fix optional/non-optional location arg, #4541
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- commit-time free space calc: ignore bad compact map entries, #4796
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- ignore EACCES (errno 13) when hardlinking the old config, #4730
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- --prefix / -P: fix processing, avoid argparse issue, #4769
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New features:
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- enable placeholder usage in all extra archive arguments
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- new BORG_WORKAROUNDS mechanism, basesyncfile, #4710
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- recreate: support --timestamp option, #4745
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- support platforms without os.link (e.g. Android with Termux), #4901.
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if we don't have os.link, we just extract another copy instead of making a hardlink.
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- support linux platforms without sync_file_range (e.g. Android 7 with Termux), #4905
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Other:
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- ignore --stats when given with --dry-run, but continue, #4373
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- add some ProgressIndicator msgids to code / fix docs, #4935
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- elaborate on "Calculating size" message
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- argparser: always use REPOSITORY in metavar, also use more consistent help phrasing.
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- check: improve error output for matching index size, see #4829
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- docs:
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- changelog: add advisory about hashindex_set bug #4829
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- better describe BORG_SECURITY_DIR, BORG_CACHE_DIR, #4919
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- infos about cache security assumptions, #4900
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- add FAQ describing difference between a local repo vs. repo on a server.
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- document how to test exclusion patterns without performing an actual backup
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- timestamps in the files cache are now usually ctime, #4583
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- fix bad reference to borg compact (does not exist in 1.1), #4660
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- create: borg 1.1 is not future any more
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- extract: document limitation "needs empty destination", #4598
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- how to supply a passphrase, use crypto devices, #4549
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- fix osxfuse github link in installation docs
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- add example of exclude-norecurse rule in help patterns
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- update macOS Brew link
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- add note about software for automating backups, #4581
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- AUTHORS: mention copyright+license for bundled msgpack
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- fix various code blocks in the docs, #4708
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- updated docs to cover use of temp directory on remote, #4545
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- add restore docs, #4670
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- add a pull backup / push restore how-to, #1552
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- add FAQ how to retain original paths, #4532
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- explain difference between --exclude and --pattern, #4118
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- add FAQs for SSH connection issues, #3866
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- improve password FAQ, #4591
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- reiterate that 'file cache names are absolute' in FAQ
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- tests:
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- cope with ANY error when importing pytest into borg.testsuite, #4652
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- fix broken test that relied on improper zlib assumptions
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- test_fuse: filter out selinux xattrs, #4574
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- travis / vagrant:
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- misc python versions removed / changed (due to openssl 1.1 compatibility)
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or added (3.7 and 3.8, for better borg compatibility testing)
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- binary building is on python 3.5.9 now
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- vagrant:
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- add new boxes: ubuntu 18.04 and 20.04, debian 10
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- update boxes: openindiana, darwin, netbsd
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- remove old boxes: centos 6
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- darwin: updated osxfuse to 3.10.4
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- use debian/ubuntu pip/virtualenv packages
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- rather use python 3.6.2 than 3.6.0, fixes coverage/sqlite3 issue
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- use requirements.d/development.lock.txt to avoid compat issues
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- travis:
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- darwin: backport some install code / order from master
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- remove deprecated keyword "sudo" from travis config
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- allow osx builds to fail, #4955
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this is due to travis-ci frequently being so slow that the OS X builds
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just fail because they exceed 50 minutes and get killed by travis.
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Version 1.1.10 (2019-05-16)
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---------------------------
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Fixes:
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- extract: hang on partial extraction with ssh: repo, when hardlink master
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is not matched/extracted and borg hangs on related slave hardlink, #4350
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- lrucache: regularly remove old FDs, #4427
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- avoid stale filehandle issues, #3265
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- freebsd: make xattr platform code api compatible with linux, #3952
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- use whitelist approach for borg serve, #4097
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- borg command shall terminate with rc 2 for ImportErrors, #4424
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- create: only run stat_simple_attrs() once, this increases
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backup with lots of unchanged files performance by ~ 5%.
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- prune: fix incorrect borg prune --stats output with --dry-run, #4373
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- key export: emit user-friendly error if repo key is exported to a directory,
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#4348
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New features:
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- bundle latest supported msgpack-python release (0.5.6), remove msgpack-python
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from setup.py install_requires - by default we use the bundled code now.
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optionally, we still support using an external msgpack (see hints in
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setup.py), but this requires solid requirements management within
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distributions and is not recommended.
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borgbackup will break if you upgrade msgpack to an unsupported version.
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- display msgpack version as part of sysinfo (e.g. in tracebacks)
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- timestamp for borg delete --info added, #4359
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- enable placeholder usage in --comment and --glob-archives, #4559, #4495
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Other:
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- serve: do not check python/libc for borg serve, #4483
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- shell completions: borg diff second archive
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- release scripts: signing binaries with Qubes OS support
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- testing:
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- vagrant: upgrade openbsd box to 6.4
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- travis-ci: lock test env to py 3.4 compatible versions, #4343
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- get rid of confusing coverage warning, #2069
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- rename test_mount_hardlinks to test_fuse_mount_hardlinks,
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so both can be excluded by "not test_fuse".
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- pure-py msgpack warning shall not make a lot of tests fail, #4558
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- docs:
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- add "SSH Configuration" section to "borg serve", #3988, #636, #4485
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- README: new URL for funding options
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- add a sample logging.conf in docs/misc, #4380
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- elaborate on append-only mode docs, #3504
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- installation: added Alpine Linux to distribution list, #4415
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- usage.html: only modify window.location when redirecting, #4133
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- add msgpack license to docs/3rd_party/msgpack
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- vagrant / binary builds:
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- use python 3.5.7 for builds
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- use osxfuse 3.8.3
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Version 1.1.9 (2019-02-10)
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--------------------------
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