Release 1.13

Fix issues #83, #93, #188, #196.

Additionally, fix the bug described in https://groups.google.com/d/msg/leveldb/yL6h1mAOc20/vLU64RylIdMJ where a large contiguous keyspace of deleted data was not getting compacted.

Also fix a bug where options.max_open_files was not getting clamped properly.

Release 1.12

Non-functional changes only:

1. Add Kevin Regan to the AUTHORS file
2. Add standard license header to issues/issue178_test.cc

Release 1.11

Fixes issues:

• #167
• #180
• #184

As well as the issue reported by [email protected] about MissingSSTFile unit test failing on windows.

Release 1.10

Fixes issues:

• #153 - thanks feniksgordonfreeman
• #159
• #162
• #172

Additionally,

• Remove calls to exit(1).
• Fix unused-variable warnings from clang.
• Fix possible overflow error related to num_restart value >= (2^32/4).
• Add leveldbutil to .gitignore.
• Add better log messages when Write is stalled on a compaction.

Release 1.9

Fix corruption bug found and analyzed by [email protected]

https://groups.google.com/d/msg/leveldb/Kc9JxuIUu5A/9P0N9RL4ar8J

Release 1.8

added utility to dump leveldb files

Release 1.7

Details:

• Fix shared library building.
• Reorganize linking commands so flags like --as-needed can be passed.
• C binding exports version numbers.
• Fix small typos in documention.

Release 1.6

Highlights

• Mmap at most 1000 files on Posix to improve performance for large databases.
• Support for more architectures (thanks to Alexander K.)

Building and porting

• HP/UX support (issue #132)
• AtomicPointer for ia64 (issue #129)
• Sparc v9 support (issue #130)
• Atomic ops for powerpc
• Use -fno-builtin-memcmp only when using g++
• Simplify IOS build rules (issue #120)
• Use CXXFLAGS instead of CFLAGS when invoking C++ compiler (issue #124)
• Fix snappy shared library problem (issue #100)
• Fix shared library installation path regression
• Endian-ness detection tweak for FreeBSD

Bug fixes

• Stop ignoring FLAGS_open_files in db_bench
• Make bloom test behavior agnostic to endian-ness

Performance

• Limit number of mmapped files to 1000 to improve perf for large dbs
• Do not delay for 1 second on shutdown path (issue #131)

Misc

• Make InMemoryEnv return a no-op logger
• C binding now has a wrapper for free (issue #123)
• Add thread-safety annotations
• Added an in-process lock table (issue #126)
• Make RandomAccessFile and SequentialFile non-copyable

Release 1.5

1. Remove obsolete android port files.
2. Remove static initializer
3. Fix endian-ness detection
4. Fix build on various platforms
5. Improve android port speed.

Release 1.4

In particular, we add a new FilterPolicy class. An instance of this class can be supplied in Options when opening a database. If supplied, the instance is used to generate summaries of keys (e.g., a bloom filter) which are placed in sstables. These summaries are consulted by DB::Get() so we can avoid reading sstable blocks that are guaranteed to not contain the key we are looking for.

This change provides one implementation of FilterPolicy based on bloom filters.

Other changes:

• Updated version number to 1.4.
• Some build tweaks.
• C binding for CompactRange.
• A few more benchmarks: deleteseq, deleterandom, readmissing, seekrandom.
• Minor .gitignore update.