Introduction to the New Features of Redis5.0 Version

The Redis 5.0 version is a major release that introduces the new data structure called Stream, which functions as a powerful multicast-enabled persistent message queue. This new feature offers a versatile option for message queuing, catering to a wide range of application scenarios and use cases.

Specific new features of Redis5.0 include:

1. New Stream data type

2. RDB adds LFU and LRU information storage

3. New sorted set commands: ZPOPMIN/MAX and blocking variants

4. Upgrade Active defragmentation to v2

5. Enhanced implementation of HyperLogLog

6. Better memory statistics reporting

7. Many commands that contain subcommands now have a HELP subcommand

8. Better performance when the client frequently connects and disconnects

9. Some bug fixes and improvements in other aspects

10. Upgraded Jemalloc to version 5.1

11. Added CLIENT UNBLOCK and CLIENT ID

12. Added LOLWUT command

13. No longer use the term “slave” where there is no need to maintain backward compatibility

14. Optimized the differences in the network layer

15. Lua improvements

16. Added Dynamic HZ to balance idle CPU usage and responsiveness

17. The Redis core code has been refactored and optimized in many aspects.