MySQL 8.0.2 More Flexible Undo Tablespace Management
In MySQL 8.0.2 DMR we will introduce features which make managing undo tablespaces easier in InnoDB.
The main improvement is that you can now create and drop undo tablespaces at any time. You can change the config file setting before any startup, whether recovery is needed or not. …
Source: MySQL 8.0.2 More Flexible Undo Tablespace Management