mirror of
https://github.com/borgbackup/borg.git
synced 2024-12-25 09:19:31 +00:00
198 lines
8.2 KiB
ReStructuredText
198 lines
8.2 KiB
ReStructuredText
.. _important_notes:
|
|
|
|
Important notes 2.x
|
|
===================
|
|
|
|
This section provides information about security and corruption issues.
|
|
|
|
(nothing to see here yet)
|
|
|
|
.. _changelog:
|
|
|
|
Change Log 2.x
|
|
==============
|
|
|
|
Version 2.0.0a3 (2022-07-04)
|
|
----------------------------
|
|
|
|
Please note:
|
|
|
|
This is an alpha release, only for testing - do not use for production repos.
|
|
|
|
Compatibility notes:
|
|
|
|
- this is a major "breaking" release that is not compatible with existing repos.
|
|
|
|
We tried to put all the necessary "breaking" changes into this release, so we
|
|
hopefully do not need another breaking release in the near future. The changes
|
|
were necessary for improved security, improved speed, unblocking future
|
|
improvements, getting rid of legacy crap / design limitations, having less and
|
|
simpler code to maintain.
|
|
|
|
You can use "borg transfer" to transfer archives from borg 1.1/1.2 repos to
|
|
a new borg 2.0 repo, but it will need some time and space.
|
|
|
|
- command line syntax was changed, scripts and wrappers will need changes:
|
|
|
|
- you will usually either export BORG_REPO=<MYREPO> into your environment or
|
|
call borg like: "borg -r <MYREPO> <COMMAND>".
|
|
in the docs, we usually omit "-r ..." for brevity.
|
|
- the scp-style REPO syntax was removed, please use ssh://..., #6697
|
|
- -P / --prefix option was removed, please use the similar -a / --glob-archives.
|
|
- differently than with borg 1.x you ONLY give the repo there, never a ::archive.
|
|
- the archive name is either given as a positional parameter, like:
|
|
|
|
- borg create myarchive2 /some/path
|
|
- borg diff myarchive1 myarchive2
|
|
- or, if the command makes sense for an arbitrary amount of archives, archives
|
|
can be selected using a glob pattern, like:
|
|
|
|
- borg delete -a 'myarchive*'
|
|
- borg recreate -a 'myarchive*'
|
|
- some borg 1.x commands that supported working on a repo AND on an archive
|
|
were split into 2 commands, some others were renamed:
|
|
|
|
- borg 2 repo commands:
|
|
|
|
- borg rcreate # "repo create", was: borg init
|
|
- borg rlist # "repo list"
|
|
- borg rinfo # "repo info"
|
|
- borg rdelete # "repo delete"
|
|
- borg 2 archive commands:
|
|
|
|
- borg create ARCHIVE ...
|
|
- borg list ARCHIVE
|
|
- borg extract ARCHIVE ...
|
|
- borg diff ARCH1 ARCH2
|
|
- borg rename OLDNAME NEWNAME
|
|
- borg info -a ARCH_GLOB
|
|
- borg delete -a ARCH_GLOB
|
|
- borg recreate -a ARCH_GLOB ...
|
|
- borg mount -a ARCH_GLOB mountpoint ...
|
|
|
|
For more details, please consult the docs or --help option output.
|
|
- some deprecated options were removed:
|
|
|
|
- removed --remote-ratelimit (use --upload-ratelimit)
|
|
- removed --numeric-owner (use --numeric-ids)
|
|
- removed --nobsdflags (use --noflags)
|
|
- removed --noatime (default now, see also --atime)
|
|
|
|
Fixes:
|
|
|
|
- check repo version, accept old repos only for --other-repo (e.g. rcreate/transfer).
|
|
v2 is the default repo version for borg 2.0. v1 repos must only be used in a
|
|
read-only way, e.g. for --other-repo=V1_REPO with borg init and borg transfer!
|
|
|
|
New features:
|
|
|
|
- transfer: --upgrader=NoOp is the default.
|
|
This is to support general-purpose transfer of archives between related borg2
|
|
repos.
|
|
- transfer: --upgrader=From12To20 must be used to transfer (and convert) archives
|
|
from borg 1.2 repos to borg 2.0 repos.
|
|
|
|
Other changes:
|
|
|
|
- removed some deprecated options
|
|
- removed -P (aka --prefix) option, #6806. The option -a (aka --glob-archives)
|
|
can be used for same purpose and is more powerful, e.g.: -a 'PREFIX*'
|
|
- rcreate: always use argon2 kdf for new repos, #6820
|
|
- rcreate: remove legacy encryption modes for new repos, #6490
|
|
|
|
|
|
Version 2.0.0a2 (2022-06-26)
|
|
----------------------------
|
|
|
|
Changes:
|
|
|
|
- split repo and archive name into separate args, #948
|
|
|
|
- use -r or --repo or BORG_REPO env var to give the repository
|
|
- use --other-repo or BORG_OTHER_REPO to give another repo (e.g. borg transfer)
|
|
- use positional argument for archive name or `-a ARCH_GLOB`
|
|
- remove support for scp-style repo specification, use ssh://...
|
|
- simplify stats output: repo ops -> repo stats, archive ops -> archive stats
|
|
- repository index: add payload size (==csize) and flags to NSIndex entries
|
|
- repository index: set/query flags, iteration over flagged items (NSIndex)
|
|
- repository: sync write file in get_fd
|
|
- stats: deduplicated size now, was deduplicated compressed size in borg 1.x
|
|
- remove csize support at most places in the code (chunks index, stats, get_size,
|
|
Item.chunks)
|
|
- replace problematic/ugly hardlink_master approach of borg 1.x by:
|
|
|
|
- symmetric hlid (all hardlinks pointing to same inode have same hlid)
|
|
- all archived hardlinked regular files have a chunks list
|
|
- borg rcreate --other-repo=OTHER_REPO: reuse key material from OTHER_REPO, #6554.
|
|
This is useful if you want to use borg transfer to transfer archives from an
|
|
existing borg 1.1/1.2 repo. If the chunker secret and the id key and algorithm
|
|
stay the same, the deduplication will also work between past and future backups.
|
|
- borg transfer:
|
|
|
|
- efficiently copy archives from a borg 1.1/1.2 repo to a new repo.
|
|
uses deduplication and does not decompress/recompress file content data.
|
|
- does some cleanups / fixes / conversions:
|
|
|
|
- disallow None value for .user/group/chunks/chunks_healthy
|
|
- cleanup msgpack related str/bytes mess, use new msgpack spec, #968
|
|
- obfuscation: fix byte order for size, #6701
|
|
- compression: use the 2 bytes for type and level, #6698
|
|
- use version 2 for new archives
|
|
- convert timestamps int/bigint -> msgpack.Timestamp, see #2323
|
|
- all hardlinks have chunks, maybe chunks_healty, hlid
|
|
- remove the zlib type bytes hack
|
|
- make sure items with chunks have precomputed size
|
|
- removes the csize element from the tuples in the Item.chunks list
|
|
- clean item of attic 0.13 'acl' bug remnants
|
|
- crypto: see 1.3.0a1 log entry
|
|
- removed "borg upgrade" command (not needed any more)
|
|
- compact: removed --cleanup-commits option
|
|
- docs: fixed quickstart and usage docs with new cli command syntax
|
|
- docs: removed the parts talking about potential AES-CTR mode issues
|
|
(we will not use that any more).
|
|
|
|
|
|
Version 1.3.0a1 (2022-04-15)
|
|
----------------------------
|
|
|
|
Although this was released as 1.3.0a1, it can be also seen as 2.0.0a1 as it was
|
|
later decided to do breaking changes and thus the major release number had to
|
|
be increased (thus, there will not be a 1.3.0 release, but 2.0.0).
|
|
|
|
New features:
|
|
|
|
- init: new --encryption=(repokey|keyfile)-[blake2-](aes-ocb|chacha20-poly1305)
|
|
|
|
- New, better, faster crypto (see encryption-aead diagram in the docs), #6463.
|
|
- New AEAD cipher suites: AES-OCB and CHACHA20-POLY1305.
|
|
- Session keys are derived via HKDF from random session id and master key.
|
|
- Nonces/MessageIVs are counters starting from 0 for each session.
|
|
- AAD: chunk id, key type, messageIV, sessionID are now authenticated also.
|
|
- Solves the potential AES-CTR mode counter management issues of the legacy crypto.
|
|
- init: --key-algorithm=argon2 (new default KDF, older pbkdf2 also still available)
|
|
|
|
borg key change-passphrase / change-location keeps the key algorithm unchanged.
|
|
- key change-algorithm: to upgrade existing keys to argon2 or downgrade to pbkdf2.
|
|
|
|
We recommend you to upgrade unless you have to keep the key compatible with older versions of borg.
|
|
- key change-location: usable for repokey <-> keyfile location change
|
|
- benchmark cpu: display benchmarks of cpu bound stuff
|
|
- export-tar: new --tar-format=PAX (default: GNU)
|
|
- import-tar/export-tar: can use PAX format for ctime and atime support
|
|
- import-tar/export-tar: --tar-format=BORG: roundtrip ALL item metadata, #5830
|
|
- repository: create and use version 2 repos only for now
|
|
- repository: implement PUT2: header crc32, overall xxh64, #1704
|
|
|
|
Other changes:
|
|
|
|
- require python >= 3.9, #6315
|
|
- simplify libs setup, #6482
|
|
- unbundle most bundled 3rd party code, use libs, #6316
|
|
- use libdeflate.crc32 (Linux and all others) or zlib.crc32 (macOS)
|
|
- repository: code cleanups / simplifications
|
|
- internal crypto api: speedups / cleanups / refactorings / modernisation
|
|
- remove "borg upgrade" support for "attic backup" repos
|
|
- remove PassphraseKey code and borg key migrate-to-repokey command
|
|
- OpenBSD: build borg with OpenSSL (not: LibreSSL), #6474
|
|
- remove support for LibreSSL, #6474
|
|
- remove support for OpenSSL < 1.1.1
|