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Obnam NEWS
==========
This file summarizes changes between releases of Obnam.
Version 0.12, released 2010-07-11; an ALPHA release
----------------------------------------------------
* NOTE: This version makes incompatible changes to the way data is stored
on-disk. Backups made with older versions are NOT supported. Sorry.
* The run-benchmark script has dropped some smaller sizes (they're too
fast to be interesting), and adds a 10 GiB test size.
* Various speed optimizations. Most importantly, the way file metadata
(results of lstat(2)) are encoded has changed. This is the incompatible
change from above. It's much faster now, though.
* Preliminary support for using SFTP for the backup store added. Hasn't
been used much yet, so might well be very buggy.
Version 0.11, released 2010-07-05; an ALPHA release
----------------------------------------------------
* Speed optimizations:
- chunk identifiers are now sequential, except for the first one, or
when there's a collision
- chunks are now stored in a more sensible directory hierarchy (instead
of one per directory, on average)
- adding files to a directory in the backup store is now faster
- only store a file's metadata that if it is changed
* New --exclude=regexp option to exclude files based on pathnames
* Obnam now makes checkpoints during backups. If a backup is aborted
in the middle and then re-started, it will continue from the latest
checkpoint rather than from the beginning of the previous backup run.
- New option --checkpoint to set the interval between checkpoints.
Defaults to 1 GiB.
* Options for various B-tree settings. This is mostly useful for finding
the optimal set of defaults, but may be useful in other situations for
some people.
- New options --chunk-group-size, --chunk-size, --node-size,
--upload-queue-size.
* Somewhat better progress reporting during backups.
Version 0.10, released 2010-06-29; an ALPHA release
---------------------------------------------------
* Rewritten from scratch.
* Old NEWS file entries removed (see bzr if you're interested).
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