Add BetaRowset. Inverted index will be supported along with this new format of rowset. Dictionary compression for string type is also supported.

Add Spark-on-Doris connector. With this feature, user can access Doris' data through Spark.

Separate storage and computation. With this feature, Doris can offload data to remote storage, and only keep data cache in local storage. In this way, user can expand compute resources fast at small cost.

Support plugin framework. Now if someone wants to add some feature, he/she can only do this in Doris code base, which is not friendly to beginners. And it is more likely to introduce new problems. So we want to create a plugin framework. User can add new feature through this mechanism.

Supported SQL will be improved. This will support more SQL syntax.