Update 2016-09-28-rocksdb-4-11-2-released.markdown

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Siying Dong 8 years ago committed by GitHub
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@ -13,25 +13,31 @@ We abandoned release candidates 4.10.x and directly go to 4.11.2 from 4.9, to ma
## 4.11.1 (8/30/2016) ## 4.11.1 (8/30/2016)
### Bug Fixes ### Bug Fixes
* Mitigate the regression bug of deadlock condition during recovery when options.max_successive_merges hits. * Mitigate the regression bug of deadlock condition during recovery when options.max_successive_merges hits.
* Fix data race condition related to hash index in block based table when putting indexes in the block cache. * Fix data race condition related to hash index in block based table when putting indexes in the block cache.
## 4.11.0 (8/1/2016) ## 4.11.0 (8/1/2016)
### Public API Change ### Public API Change
* options.memtable_prefix_bloom_huge_page_tlb_size => memtable_huge_page_size. When it is set, RocksDB will try to allocate memory from huge page for memtable too, rather than just memtable bloom filter.
* options.memtable_prefix_bloom_huge_page_tlb_size => memtable_huge_page_size. When it is set, RocksDB will try to allocate memory from huge page for memtable too, rather than just memtable bloom filter.
### New Features ### New Features
* A tool to migrate DB after options change. See include/rocksdb/utilities/option_change_migration.h.
* Add ReadOptions.background_purge_on_iterator_cleanup. If true, we avoid file deletion when destorying iterators. * A tool to migrate DB after options change. See include/rocksdb/utilities/option_change_migration.h.
* Add ReadOptions.background_purge_on_iterator_cleanup. If true, we avoid file deletion when destorying iterators.
## 4.10.0 (7/5/2016) ## 4.10.0 (7/5/2016)
### Public API Change ### Public API Change
* options.memtable_prefix_bloom_bits changes to options.memtable_prefix_bloom_bits_ratio and deprecate options.memtable_prefix_bloom_probes
* enum type CompressionType and PerfLevel changes from char to unsigned char. Value of all PerfLevel shift by one. * options.memtable_prefix_bloom_bits changes to options.memtable_prefix_bloom_bits_ratio and deprecate options.memtable_prefix_bloom_probes
* Deprecate options.filter_deletes. * enum type CompressionType and PerfLevel changes from char to unsigned char. Value of all PerfLevel shift by one.
* Deprecate options.filter_deletes.
### New Features ### New Features
* Add avoid_flush_during_recovery option.
* Add a read option background_purge_on_iterator_cleanup to avoid deleting files in foreground when destroying iterators. Instead, a job is scheduled in high priority queue and would be executed in a separate background thread. * Add avoid_flush_during_recovery option.
* RepairDB support for column families. RepairDB now associates data with non-default column families using information embedded in the SST/WAL files (4.7 or later). For data written by 4.6 or earlier, RepairDB associates it with the default column family. * Add a read option background_purge_on_iterator_cleanup to avoid deleting files in foreground when destroying iterators. Instead, a job is scheduled in high priority queue and would be executed in a separate background thread.
* Add options.write_buffer_manager which allows users to control total memtable sizes across multiple DB instances. * RepairDB support for column families. RepairDB now associates data with non-default column families using information embedded in the SST/WAL files (4.7 or later). For data written by 4.6 or earlier, RepairDB associates it with the default column family.
* Add options.write_buffer_manager which allows users to control total memtable sizes across multiple DB instances.

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