Netty Version 4 Supported for PSI Agent

From  8.1.9 and 8.2.0, Netty version 4 is supported for the PSI Agent, and from 8.1.9 and 8.2.1 Netty version 4 is also supported for the Websocket Agents.  will be completely upgraded to Netty version 4 shortly, starting with the PSI Agent in  8.1.9 and 8.2.0.

Select Netty version in the Connection tab of the PSI Agent Configuration. For more information, refer to /wiki/spaces/MD82/pages/3775119 and /wiki/spaces/MD82/pages/3777748.