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release 4.9 update version and history

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Summary: update version and history

Test Plan: N/A

Reviewers: yiwu, sdong, IslamAbdelRahman, andrewkr

Reviewed By: andrewkr

Subscribers: andrewkr, dhruba, leveldb

Differential Revision: https://reviews.facebook.net/D59421
This commit is contained in:
Aaron Gao 2016-06-09 17:26:17 -07:00
parent b2973eaaeb
commit 3e86869616
2 changed files with 10 additions and 7 deletions
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HISTORY.md
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# Unreleased
### Public API Change
* Deprecate BlockBaseTableOptions.hash_index_allow_collision=false
* Deprecate options builder (GetOptions()).
# Rocksdb Change Log
## Unreleased
## 4.9.0 (6/9/2016)
### Public API changes
* Add bottommost_compression option, This option can be used to set a specific compression algorithm for the bottommost level (Last level containing files in the DB).
* Introduce CompactionJobInfo::compression, This field state the compression algorithm used to generate the output files of the compaction.
* Deprecate BlockBaseTableOptions.hash_index_allow_collision=false
* Deprecate BlockBaseTableOptions.hash_index_allow_collision=false
* Deprecate options builder (GetOptions()).
### New Features
* Introduce NewSimCache() in rocksdb/utilities/sim_cache.h. This function creates a block cache that is able to give simulation results (mainly hit rate) of simulating block behavior with a configurable cache size.
## 4.8.0 (5/2/2016)
### Public API Change

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include/rocksdb/version.h
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#pragma once
#define ROCKSDB_MAJOR 4
#define ROCKSDB_MINOR 8
#define ROCKSDB_MINOR 9
#define ROCKSDB_PATCH 0
// Do not use these. We made the mistake of declaring macros starting with