restic/CHANGELOG.md

This file describes changes relevant to all users that are made in each released version of restic from the perspective of the user.

Important Changes in 0.X.Y

• The migrate command for chaning the s3legacy layout to the default layout for s3 backends has been improved: It can now be restarted with restic migrate --force s3_layout and automatically retries operations on error. https://github.com/restic/restic/issues/1073 https://github.com/restic/restic/pull/1075

Small changes

• The local and sftp backends now create the subdirs below data/ on open/init. This way, restic makes sure that they always exist. This is connected to an issue for the sftp server: https://github.com/restic/rest-server/pull/11#issuecomment-309879710 https://github.com/restic/restic/issues/1055 https://github.com/restic/restic/pull/1077 https://github.com/restic/restic/pull/1105

• When no S3 credentials are specified in the environment variables, restic now tries to load credentials from an IAM instance profile when the s3 backend is used. https://github.com/restic/restic/issues/1067 https://github.com/restic/restic/pull/1086

• On Darwin and FreeBSD, restic now prints stats when SIGINFO is received (usually when ctrl+t is pressed). https://github.com/restic/restic/pull/1082

• The dependencies have been updated. https://github.com/restic/restic/pull/1108

• A bug was found (and corrected) in the index rebuilding after prune, which led to indexes which include blobs that were not present in the repo any more. There were already checks in place which detected this situation and aborted with an error message. A new run of either prune or rebuild-index corrected the index files. This is now fixed and a test has been added to detect this. https://github.com/restic/restic/pull/1115

• Errors for chmod() on Unix for filesystems which do not support it (e.g. smb mounted via gvfs) are now ignored. https://github.com/restic/restic/pull/1080 https://github.com/restic/restic/pull/1112

• The semantic for the --tags option to forget and snapshots was clarified: https://github.com/restic/restic/issues/1081 https://github.com/restic/restic/pull/1090

Important Changes in 0.7.0

• New "swift" backend: A new backend for the OpenStack Swift cloud storage protocol has been added, https://wiki.openstack.org/wiki/Swift https://github.com/restic/restic/pull/975 https://github.com/restic/restic/pull/648

• New "b2" backend: A new backend for Backblaze B2 cloud storage service has been added, https://www.backblaze.com https://github.com/restic/restic/issues/512 https://github.com/restic/restic/pull/978

• Improved performance for the find command: Restic recognizes paths it has already checked for the files in question, so the number of backend requests is reduced a lot. https://github.com/restic/restic/issues/989 https://github.com/restic/restic/pull/993

• Improved performance for the fuse mount: Listing directories which contain large files now is significantly faster. https://github.com/restic/restic/pull/998

• The default layout for the s3 backend is now default (instead of s3legacy). Also, there's a new migrate command to convert an existing repo, it can be run like this: restic migrate s3_layout https://github.com/restic/restic/issues/965 https://github.com/restic/restic/pull/1004

• The fuse mount now has two more directories: tags contains a subdir for each tag, which in turn contains only the snapshots that have this tag. The subdir hosts contains a subdir for each host that has a snapshot, and the subdir contains the snapshots for that host. https://github.com/restic/restic/issues/636 https://github.com/restic/restic/pull/1050

Small changes

• For the s3 backend we're back to using the high-level API the s3 client library for uploading data, a few users reported dropped connections (which the library will automatically retry now). https://github.com/restic/restic/issues/1013 https://github.com/restic/restic/issues/1023 https://github.com/restic/restic/pull/1025

• The prune command has been improved and will now remove invalid pack files, for example files that have not been uploaded completely because a backup was interrupted. https://github.com/restic/restic/issues/1029 https://github.com/restic/restic/pull/1036

• restic now tries to detect when an invalid/unknown backend is used and returns an error message. https://github.com/restic/restic/issues/1021 https://github.com/restic/restic/pull/1070

Important Changes in 0.6.1

This is mostly a bugfix release and only contains small changes:

• We've fixed a bug where rebuild-index would corrupt the index when used with the s3 backend together with the default layout. This is not the default setting.

• Backends based on HTTP now allow several idle connections in parallel. This is especially important for the REST backend, which (when used with a local server) may create a lot connections and exhaust available ports quickly. https://github.com/restic/restic/issues/985 https://github.com/restic/restic/pull/986

• Regular status report: We've removed the status report that was printed every 10 seconds when restic is run non-interactively. You can still force reporting the current status by sending a USR1 signal to the process. https://github.com/restic/restic/pull/974

• The build.go now strips the temporary directory used for compilation from the binary. This is the first step in enabling reproducible builds. https://github.com/restic/restic/pull/981

Important Changes in 0.6.0

Consistent forget policy

The forget command was corrected to be more consistent in which snapshots are to be forgotten. It is possible that the new code removes more snapshots than before, so please review what would be deleted by using the --dry-run option.

https://github.com/restic/restic/pull/957 https://github.com/restic/restic/issues/953

Unified repository layout

Up to now the s3 backend used a special repository layout. We've decided to unify the repository layout and implemented the default layout also for the s3 backend. For creating a new repository on s3 with the default layout, use restic -o s3.layout=default init. For further commands the option is not necessary any more, restic will automatically detect the correct layout to use. A future version will switch to the default layout for new repositories.

https://github.com/restic/restic/pull/966 https://github.com/restic/restic/issues/965

Memory and time improvements for the s3 backend

We've updated the library used for accessing s3, switched to using a lower level API and added caching for some requests. This lead to a decrease in memory usage and a great speedup. In addition, we added benchmark functions for all backends, so we can track improvements over time. The Continuous Integration test service we're using (Travis) now runs the s3 backend tests not only against a Minio server, but also against the Amazon s3 live service, so we should be notified of any regressions much sooner.

https://github.com/restic/restic/pull/962 https://github.com/restic/restic/pull/960 https://github.com/restic/restic/pull/946 https://github.com/restic/restic/pull/938 https://github.com/restic/restic/pull/883