70 lines
3.0 KiB
Markdown
70 lines
3.0 KiB
Markdown
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# Changelog
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All notable changes to this project will be documented in this file.
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The format is based on [Keep a Changelog](http://keepachangelog.com/en/1.0.0/)
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and this project adheres to [Semantic Versioning](http://semver.org/spec/v2.0.0.html).
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## [Unreleased]
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## [1.5.0] - 2018-05-08
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* Introduce `NumVersionsToKeep` option. This option is used to discard many
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versions of the same key, which saves space.
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* Add a new `SetWithDiscard` method, which would indicate that all the older
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versions of the key are now invalid. Those versions would be discarded during
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compactions.
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* Value log GC moves are now bound to another keyspace to ensure latest versions
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of data are always at the top in LSM tree.
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* Introduce `ValueLogMaxEntries` to restrict the number of key-value pairs per
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value log file. This helps bound the time it takes to garbage collect one
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file.
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## [1.4.0] - 2018-05-04
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* Make mmap-ing of value log optional.
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* Run GC multiple times, based on recorded discard statistics.
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* Add MergeOperator.
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* Force compact L0 on clsoe (#439).
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* Add truncate option to warn about data loss (#452).
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* Discard key versions during compaction (#464).
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* Introduce new `LSMOnlyOptions`, to make Badger act like a typical LSM based DB.
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Bug fix:
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* [Temporary] Check max version across all tables in Get (removed in next
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release).
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* Update commit and read ts while loading from backup.
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* Ensure all transaction entries are part of the same value log file.
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* On commit, run unlock callbacks before doing writes (#413).
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* Wait for goroutines to finish before closing iterators (#421).
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## [1.3.0] - 2017-12-12
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* Add `DB.NextSequence()` method to generate monotonically increasing integer
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sequences.
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* Add `DB.Size()` method to return the size of LSM and value log files.
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* Tweaked mmap code to make Windows 32-bit builds work.
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* Tweaked build tags on some files to make iOS builds work.
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* Fix `DB.PurgeOlderVersions()` to not violate some constraints.
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## [1.2.0] - 2017-11-30
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* Expose a `Txn.SetEntry()` method to allow setting the key-value pair
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and all the metadata at the same time.
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## [1.1.1] - 2017-11-28
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* Fix bug where txn.Get was returing key deleted in same transaction.
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* Fix race condition while decrementing reference in oracle.
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* Update doneCommit in the callback for CommitAsync.
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* Iterator see writes of current txn.
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## [1.1.0] - 2017-11-13
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* Create Badger directory if it does not exist when `badger.Open` is called.
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* Added `Item.ValueCopy()` to avoid deadlocks in long-running iterations
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* Fixed 64-bit alignment issues to make Badger run on Arm v7
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## [1.0.1] - 2017-11-06
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* Fix an uint16 overflow when resizing key slice
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[Unreleased]: https://github.com/dgraph-io/badger/compare/v1.3.0...HEAD
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[1.3.0]: https://github.com/dgraph-io/badger/compare/v1.2.0...v1.3.0
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[1.2.0]: https://github.com/dgraph-io/badger/compare/v1.1.1...v1.2.0
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[1.1.1]: https://github.com/dgraph-io/badger/compare/v1.1.0...v1.1.1
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[1.1.0]: https://github.com/dgraph-io/badger/compare/v1.0.1...v1.1.0
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[1.0.1]: https://github.com/dgraph-io/badger/compare/v1.0.0...v1.0.1
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