* 1.9.2
	* New features:
		- Binlog capacity can be set in config file(2016-01-14)
		- Provide zfix command to repair broken zset(2015-12-02)
		- Supports specifying slaveof.host in ssdb.conf(2015-11-23)
		- Do not allow flushdb when replication is in use(2015-11-16)
		- Provide server side flushdb(2015-09-17)
		- The slave will flush db when receive copy_begin(2015-07-28)
	* Incompatible changes:
		- Will not support db size for redis clients(2015-08-07)
	* Bug fixes:
		- Fix Logger bug on multi-threads(2016-01-25)
		- Fix bug when ssdb-cli is soft linked(2016-01-25)
		- Fix zclear infinite loop when data is broken(2015-12-02)
		- Fix setbit crash on very big offset(2015-11-17)
		- Fix Jedis zadd() score in scientific notation(2015-10-22)
* 1.9.1
	* Incompatible changes:
		- zrank/zrrank return not_found(prev is error) if member not exists(2015-07-16)
		- PHP API zrank/zrrank return null(prev is false) if member not exists(2015-07-16)
* 1.9.0
	* New features:
		- Update MAX_PACKET_SIZE to 128MB(2015-04-28)
		- Process most read commands in reader threads, not main thread(2015-04-28)
		- Add bitcount command, which is similar to Redis's bitcount(2015-04-15)
		- Add zpop_front, zpop_back command(2015-04-01)
		- Support static library build for iOS(2015-03-26)
		- Update options.max_open_files default value to 500(2015-03-15)
		- Add version command(2015-03-10)
		- Add rkeys command(2015-02-15)
	* Bug fixes:
		- Fix replication status display error(2015-04-09)
* 1.8.1
	* Bug fixes:
		- Fix ttl bug(https://github.com/ideawu/ssdb/issues/628)(2015-03-14)
* 1.8.0
	* New features:
		- Support SSDB style keys command through redis-cli(2014-12-08)
		- Replication supports AUTH(2014-12-01)
		- Sync qset operations(2014-11-05)
		- Add dbsize command(2014-11-02)
		- Include sync clients' stats in info(2014-11-02)
		- Refactor codes, separate into: libutil, libnet, libssdb(2014-11-02)
	* Bug fixes:
		- Fix bug when process dump and sync140 command with redis-cli(2015-01-27)
* 1.7.0.1
	* New features:
		- Sync qset operations(2014-11-05)
		- *incr commands return error if value cannot be converted to integer(2014-10-24)
		- Include replication/sync stats in info(2014-10-23)
		- Add set_key_range, get_key_range(for KV) command(2014-10-22)
		- Add qset/lset command(sync won't work), rewrite Response(2014-10-19)
* 1.7.0.0
	* New features:
		- export(ssdb-cli) command supports -i(interactive) option(2014-10-16)
		- ssdb-cli performance improved(2014-10-11)
		- Add export, import commands in ssdb-cli(2014-10-11)
		- Add qtrim_front, qtrim_back commands(2014-10-11)
		- ssdb-dump support auth(2014-10-10)
		- Add max_open_files config, default is 100(2014-10-08)
		- Add auth command(2014-09-20)
		- Enable qpop multi elements at a time(2014-09-16)
	* Incompatible changes:
		- Rewrite hexmem, this affects log messages(2014-10-10)
* 1.6.8.8
	* New features:
		- Add hrlist, zrlist, qrlist commands(2014-07-27)
		- Add string/bit operations: getbit, setbit, bitcount, strlen, substr(getrange)(2014-06-07)
		- Put multi_*get commands to execute in worker thread(2014-06-17)
	* Incompatible changes:
		- Delete expireation info when deleting key(2014-06-28)
		- Inlucde links, total_calls in info cmd's reply(2014-06-17)
		- Rename redis_getrange command to getrange(2014-07-27)
	* Bug fixes:
		- Fix ssdb-bench bug on del bench(2014-08-21)
		- Return entrire string when substr's params are ommitted(2014-07-27)
		- Fix key expiration/ttl bug(2014-07-02)
		- Fix zRangeByScore(redis) bug(2014-06-28)

* 1.6.8.7
	* New features:
		- Add string/bit operations: getbit, setbit, bitcount, strlen, substr(getrange)(2014-06-07)
		- Add expire command(2014-05-28)
		- Add ttl command(2014-05-26)
		- Add `flushdb list`(2014-05-22)
		- Support Android build
		- Add sync speed limit

* 1.6.8.6 (2014-03-29)
	* New features:
		- Reduce round trip time for single request(2014-04-04)
		- Add zcount, zsum, zavg, zRemRangeByScore, zRemRangeByRank commands(2014-04-06)
		- Update redis-import.php to use Redis SCAN command if available(2014-04-07)
		- qpush/qpush_* accept multiple values(2014-04-13)
		- Don't push all expiration keys in memory, use less memory(2014-05-03)
		- Provide an option to disable binlog(2014-05-03)
		- Add hgetall command(2014-05-03)
		- Fix memory issue on cache_size larger than 2048(2014-05-12);
	* Incompatible changes:
		- qpush returns the length of the queue/list after the push operations(2014-04-10)
		- zrscan returns keys with score equal to score_start if key_start is ommit, previously it only returns keys with scores less than score_start(2014-04-23)
	* Bug fixes:
		- Redesign network flow, support very large batch commands
		- Fix bug on ssdb-dump that lose data, print out error message(2014-04-05)

* 1.6.8.5 (2014-03-05)
	* New features:
		- Add qslice(lrange), qget(lindex, lget) commands.
		- Add getset, setnx commands.
	* Incompatible changes:
		- Queue/List data will be replicated(sync) to slaves.
	* Bug fixes:
		- Fix ssdb::Client::connect() possible memory leak
		- Fix ttl overflow bug
		- Fix nodejs api bug on binary data(2014-03-27)