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449 lines
19 KiB
Markdown
449 lines
19 KiB
Markdown
This file describes changes relevant to all users that are made in each
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released version of restic from the perspective of the user.
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Important Changes in 0.X.Y
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==========================
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Small changes
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-------------
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* We've added code to detect old cache directories of repositories that
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haven't been used in a long time, restic now prints a note when it detects
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that such dirs exist. Also, the option `--cleanup-cache` was added to
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automatically remove such directories. That's not a problem because the
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cache will be rebuild once a repo is accessed again.
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https://github.com/restic/restic/pull/1436
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* The cache directory on Windows and Darwin was not correct, instead the
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directory `.cache` was used.
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https://github.com/restic/restic/pull/1454
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* By default, the access time for files and dirs is not saved any more. It is
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not possible to reliably disable updating the access time during a backup,
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so for the next backup the access time is different again. This means a lot
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of metadata is saved. If you want to save the access time anyway, pass
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`--with-atime` to the `backup` command.
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https://github.com/restic/restic/pull/1452
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* We've improved the s3 backend to work with DigitalOcean Spaces. In addition,
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handling of SIGPIPE was removed.
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https://github.com/restic/restic/pull/1459
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https://github.com/restic/restic/issues/1457
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Important Changes in 0.8.0
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==========================
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* A vulnerability was found in the restic restorer, which allowed attackers in
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special circumstances to restore files to a location outside of the target
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directory. Due to the circumstances we estimate this to be a low-risk
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vulnerability, but urge all users to upgrade to the latest version of restic.
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Exploiting the vulnerability requires a Linux/Unix system which saves
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backups via restic and a Windows systems which restores files from the repo.
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In addition, the attackers need to be able to create create files with
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arbitrary names which are then saved to the restic repo. For example, by
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creating a file named "..\test.txt" (which is a perfectly legal filename on
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Linux) and restoring a snapshot containing this file on Windows, it would be
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written to the parent of the target directory.
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We'd like to thank Tyler Spivey for reporting this responsibly!
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https://github.com/restic/restic/pull/1445
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* The s3 backend used the subdir `restic` within a bucket if no explicit path
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after the bucket name was specified. Since this version, restic does not use
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this default path any more. If you created a repo on s3 in a bucket without
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specifying a path within the bucket, you need to add `/restic` at the end of
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the repository specification to access your repo: `s3:s3.amazonaws.com/bucket/restic`
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https://github.com/restic/restic/issues/1292
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https://github.com/restic/restic/pull/1437
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* We've added a local cache for metadata so that restic doesn't need to load
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all metadata (snapshots, indexes, ...) from the repo each time it starts. By
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default the cache is active, but there's a new global option `--no-cache`
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that can be used to disable the cache. By deafult, the cache a standard
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cache folder for the OS, which can be overridden with `--cache-dir`. The
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cache will automatically populate, indexes and snapshots are saved as they
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are loaded. Cache directories for repos that haven't been used recently can
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automatically be removed by restic with the `--cleanup-cache` option.
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https://github.com/restic/restic/pull/1040
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https://github.com/restic/restic/issues/29
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https://github.com/restic/restic/issues/738
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https://github.com/restic/restic/issues/282
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https://github.com/restic/restic/pull/1287
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https://github.com/restic/restic/pull/1436
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* A related change was to by default create pack files in the repo that
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contain either data or metadata, not both mixed together. This allows easy
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caching of only the metadata files. The next run of `restic prune` will
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untangle mixed files automatically.
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https://github.com/restic/restic/pull/1265
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* The Google Cloud Storage backend no longer requires the service account to
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have the `storage.buckets.get` permission ("Storage Admin" role) in `restic
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init` if the bucket already exists.
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https://github.com/restic/restic/pull/1281
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* Added support for rate limiting through `--limit-upload` and
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`--limit-download` flags.
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https://github.com/restic/restic/issues/1216
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https://github.com/restic/restic/pull/1336
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https://github.com/restic/restic/pull/1358
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* Failed backend requests are now automatically retried.
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https://github.com/restic/restic/pull/1353
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* We've added the `dump` command which prints a file from a snapshot to
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stdout. This can e.g. be used to restore files read with `backup --stdin`.
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https://github.com/restic/restic/issues/510
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https://github.com/restic/restic/pull/1346
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Small changes
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-------------
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* The directory structure in the fuse mount now exposes a symlink `latest`
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which points to the latest snapshot in that particular directory.
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https://github.com/restic/restic/pull/1249
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* The option `--compact` was added to the `forget` command to provide the same
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compact view as the `snapshots` command.
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https://github.com/restic/restic/pull/1269
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* We've re-enabled a workaround for `minio-go` (the library we're using to
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access s3 backends), this reduces memory usage.
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https://github.com/restic/restic/issues/1256
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https://github.com/restic/restic/pull/1267
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* The sftp backend now prompts for the password if a password is necessary for
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login.
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https://github.com/restic/restic/issues/448
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https://github.com/restic/restic/pull/1270
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* The `generate` command has been added, which replaces the now removed
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commands `manpage` and `autocomplete`. This release of restic contains the
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most recent manpages in `doc/man` and the auto-completion files for bash and
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zsh in `doc/bash-completion.sh` and `doc/zsh-completion.zsh`
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https://github.com/restic/restic/issues/1274
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https://github.com/restic/restic/pull/1282
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* A bug was discovered in the library we're using to access Backblaze, it now
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reuses already established TCP connections which should be a lot faster and
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not cause network failures any more.
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https://github.com/restic/restic/issues/1291
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https://github.com/restic/restic/pull/1301
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* Another bug in the `forget` command caused `prune` not to be run when
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`--prune` was specified without a policy, e.g. when only snapshot IDs that
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should be forgotten are listed manually. This is corrected now.
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https://github.com/restic/restic/pull/1317
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* The `check` command now explicetly prints `No errors were found` when no
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errors could be found.
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https://github.com/restic/restic/pull/1319
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https://github.com/restic/restic/issues/1303
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* The fuse mount now has an `ids` subdirectory which contains the snapshots
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below their (short) IDs.
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https://github.com/restic/restic/issues/1102
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https://github.com/restic/restic/pull/1299
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https://github.com/restic/restic/pull/1320
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* The `backup` command was improved, it now caches the result of excludes for
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a directory.
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https://github.com/restic/restic/issues/1271
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https://github.com/restic/restic/pull/1326
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* We've added the `--cacert` option which can be used to pass one (or more) CA
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certificates to restic. These are used in addition to the system CA
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certificates to verify HTTPS certificates (e.g. for the REST backend).
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https://github.com/restic/restic/issues/1114
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https://github.com/restic/restic/pull/1276
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* When the list of files/dirs to be saved is read from a file with
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`--files-from`, comment lines (starting with `#`) are now ignored.
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https://github.com/restic/restic/issues/1367
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https://github.com/restic/restic/pull/1368
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Important Changes in 0.7.3
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==========================
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* For large backups stored in Google Cloud Storage, the `prune` command fails
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because listing only returns the first 1000 files. This has been corrected,
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no data is lost in the process. In addition, a plausibility check was added
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to `prune`.
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https://github.com/restic/restic/issues/1246
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https://github.com/restic/restic/pull/1247
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Important Changes in 0.7.2
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==========================
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* We've added an official docker image and a Dockerfile to build this image in
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`docker/`.
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https://github.com/restic/restic/pull/1061
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* The git repository layout was changed to resemble the layout typically used
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in Go projects, we're not using `gb` for building restic any more and
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vendoring the dependencies is now taken care of by `dep`.
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https://github.com/restic/restic/pull/1126
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* We now support saving backups on Google Cloud Storage.
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https://github.com/restic/restic/pull/1134
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https://github.com/restic/restic/pull/1052
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https://github.com/restic/restic/issues/211
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* We've added support for Microsoft Azure Blob Storage as a restic backend.
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https://github.com/restic/restic/pull/1149
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https://github.com/restic/restic/pull/1059
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https://github.com/restic/restic/issues/609
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* In the course of supporting Microsoft Azure Blobe Storage Go 1.8 is now a
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requirement to build restic.
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* The `restore` command has been improved: When dirs are excluded (or not
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included) in a restore, they are not loaded from the repo any more.
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https://github.com/restic/restic/pull/1044
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* Name collisions are now resolved by appending a counter.
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https://github.com/restic/restic/issues/1179
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https://github.com/restic/restic/pull/1209
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Small changes
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-------------
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* The `key` command now prompts for a password even if the original password
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to access a repo has been specified via the `RESTIC_PASSWORD` environment
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variable or a password file.
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https://github.com/restic/restic/issues/1132
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https://github.com/restic/restic/pull/1133
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* Properly report errors when reading files with exclude patterns.
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https://github.com/restic/restic/pull/1144
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* We now automatically generate man pages for all restic commands, see the
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subdir `doc/man`.
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https://github.com/restic/restic/issues/697
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https://github.com/restic/restic/pull/1147
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* The `key remove` command was corrected and now works as documented.
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https://github.com/restic/restic/pull/1164
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* When a restic command other than `init` is used with a local repository and
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the repository directory does not exist, restic creates the directory
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structure. That's an error, only the `init` command should create the dir.
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https://github.com/restic/restic/issues/1167
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https://github.com/restic/restic/pull/1182
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* Restic now prints stats on all BSD systems (not only on darwin) when SIGINFO
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is received (usually when ctrl+t is pressed).
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https://github.com/restic/restic/pull/1203
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https://github.com/restic/restic/pull/1082#issuecomment-326279920
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* Since a few releases restic had the ability to write profiling files for
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memory and CPU usage when `debug` is enabled. It was discovered that when
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restic is interrupted (ctrl+c is pressed), the proper shutdown hook is not
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run. This is now corrected.
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https://github.com/restic/restic/pull/1191
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* A new option `--exclude-caches` was added that allows excluding cache
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directories (that are tagged as such). This is a special case of a more
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generic option `--exclude-if-present` which excludes a directory if a file
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with a specific name (and contents) is present.
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https://github.com/restic/restic/issues/317
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https://github.com/restic/restic/pull/1170
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https://github.com/restic/restic/pull/1224
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* The `forget` command now has an option `--group-by` that allows flexible
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grouping policies.
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https://github.com/restic/restic/pull/1196
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* The date and time restic records for a new backup can now be specified
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externally by passing `--time` to the `backup` command.
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https://github.com/restic/restic/pull/1205
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* The option `--compact` was added to the `snapshots` command to get a better
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overview of the snapshots in a repo. It limits each snapshot to a single
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line.
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https://github.com/restic/restic/issues/1218
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https://github.com/restic/restic/pull/1223
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Important Changes in 0.7.1
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==========================
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* The `migrate` command for chaning the `s3legacy` layout to the `default`
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layout for s3 backends has been improved: It can now be restarted with
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`restic migrate --force s3_layout` and automatically retries operations on
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error.
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https://github.com/restic/restic/issues/1073
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https://github.com/restic/restic/pull/1075
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Small changes
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-------------
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* The local and sftp backends now create the subdirs below `data/` on
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open/init. This way, restic makes sure that they always exist. This is
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connected to an issue for the sftp server:
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https://github.com/restic/rest-server/pull/11#issuecomment-309879710
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https://github.com/restic/restic/issues/1055
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https://github.com/restic/restic/pull/1077
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https://github.com/restic/restic/pull/1105
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* When no S3 credentials are specified in the environment variables, restic
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now tries to load credentials from an IAM instance profile when the s3
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backend is used.
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https://github.com/restic/restic/issues/1067
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https://github.com/restic/restic/pull/1086
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* On Darwin and FreeBSD, restic now prints stats when SIGINFO is received
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(usually when ctrl+t is pressed).
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https://github.com/restic/restic/pull/1082
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* The dependencies have been updated.
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https://github.com/restic/restic/pull/1108
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https://github.com/restic/restic/pull/1124
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* A bug was found (and corrected) in the index rebuilding after prune, which
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led to indexes which include blobs that were not present in the repo any
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more. There were already checks in place which detected this situation and
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aborted with an error message. A new run of either `prune` or
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`rebuild-index` corrected the index files. This is now fixed and a test has
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been added to detect this.
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https://github.com/restic/restic/pull/1115
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* Errors for chmod() on Unix for filesystems which do not support it (e.g. smb
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mounted via gvfs) are now ignored.
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https://github.com/restic/restic/pull/1080
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https://github.com/restic/restic/pull/1112
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* The semantic for the `--tags` option to `forget` and `snapshots` was
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clarified:
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https://github.com/restic/restic/issues/1081
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https://github.com/restic/restic/pull/1090
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Important Changes in 0.7.0
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==========================
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* New "swift" backend: A new backend for the OpenStack Swift cloud storage
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protocol has been added, https://wiki.openstack.org/wiki/Swift
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https://github.com/restic/restic/pull/975
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https://github.com/restic/restic/pull/648
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* New "b2" backend: A new backend for Backblaze B2 cloud storage
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service has been added, https://www.backblaze.com
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https://github.com/restic/restic/issues/512
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https://github.com/restic/restic/pull/978
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* Improved performance for the `find` command: Restic recognizes paths it has
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already checked for the files in question, so the number of backend requests
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is reduced a lot.
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https://github.com/restic/restic/issues/989
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https://github.com/restic/restic/pull/993
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* Improved performance for the fuse mount: Listing directories which contain
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large files now is significantly faster.
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https://github.com/restic/restic/pull/998
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* The default layout for the s3 backend is now `default` (instead of
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`s3legacy`). Also, there's a new `migrate` command to convert an existing
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repo, it can be run like this: `restic migrate s3_layout`
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https://github.com/restic/restic/issues/965
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https://github.com/restic/restic/pull/1004
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* The fuse mount now has two more directories: `tags` contains a subdir for
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each tag, which in turn contains only the snapshots that have this tag. The
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subdir `hosts` contains a subdir for each host that has a snapshot, and the
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subdir contains the snapshots for that host.
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https://github.com/restic/restic/issues/636
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https://github.com/restic/restic/pull/1050
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Small changes
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-------------
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* For the s3 backend we're back to using the high-level API the s3 client
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library for uploading data, a few users reported dropped connections (which
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the library will automatically retry now).
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https://github.com/restic/restic/issues/1013
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https://github.com/restic/restic/issues/1023
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https://github.com/restic/restic/pull/1025
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* The `prune` command has been improved and will now remove invalid pack
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files, for example files that have not been uploaded completely because a
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backup was interrupted.
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https://github.com/restic/restic/issues/1029
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https://github.com/restic/restic/pull/1036
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* restic now tries to detect when an invalid/unknown backend is used and
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returns an error message.
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https://github.com/restic/restic/issues/1021
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https://github.com/restic/restic/pull/1070
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Important Changes in 0.6.1
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==========================
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This is mostly a bugfix release and only contains small changes:
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* We've fixed a bug where `rebuild-index` would corrupt the index when used
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with the s3 backend together with the `default` layout. This is not the
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default setting.
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* Backends based on HTTP now allow several idle connections in parallel. This
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is especially important for the REST backend, which (when used with a local
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server) may create a lot connections and exhaust available ports quickly.
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https://github.com/restic/restic/issues/985
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https://github.com/restic/restic/pull/986
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* Regular status report: We've removed the status report that was printed
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every 10 seconds when restic is run non-interactively. You can still force
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reporting the current status by sending a `USR1` signal to the process.
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https://github.com/restic/restic/pull/974
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* The `build.go` now strips the temporary directory used for compilation from
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the binary. This is the first step in enabling reproducible builds.
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https://github.com/restic/restic/pull/981
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Important Changes in 0.6.0
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==========================
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Consistent forget policy
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------------------------
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The `forget` command was corrected to be more consistent in which snapshots are
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to be forgotten. It is possible that the new code removes more snapshots than
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before, so please review what would be deleted by using the `--dry-run` option.
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https://github.com/restic/restic/pull/957
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https://github.com/restic/restic/issues/953
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Unified repository layout
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-------------------------
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Up to now the s3 backend used a special repository layout. We've decided to
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unify the repository layout and implemented the default layout also for the s3
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backend. For creating a new repository on s3 with the default layout, use
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`restic -o s3.layout=default init`. For further commands the option is not
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necessary any more, restic will automatically detect the correct layout to use.
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A future version will switch to the default layout for new repositories.
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https://github.com/restic/restic/pull/966
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https://github.com/restic/restic/issues/965
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Memory and time improvements for the s3 backend
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-----------------------------------------------
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We've updated the library used for accessing s3, switched to using a lower
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level API and added caching for some requests. This lead to a decrease in
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memory usage and a great speedup. In addition, we added benchmark functions for
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all backends, so we can track improvements over time. The Continuous
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Integration test service we're using (Travis) now runs the s3 backend tests not
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only against a Minio server, but also against the Amazon s3 live service, so we
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should be notified of any regressions much sooner.
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https://github.com/restic/restic/pull/962
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https://github.com/restic/restic/pull/960
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https://github.com/restic/restic/pull/946
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https://github.com/restic/restic/pull/938
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https://github.com/restic/restic/pull/883
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