Remote PyCharm ide outputs Using new app-level config directories and interpreter cache is not preserved anymore

Hello,

I'm running a remote PyCharm IDE in a container and I was setting up mounts and symlinks to persist most of the needed cache between different containers (interpreter indexing, etc), see relevant previous discussion here.

When I installed the new Pycharm2024.1 version, my cache is not persisted anymore, it seems like the directories changed, and I get the following output when I run the ./remote-dev-server.sh.

Using new app-level config directories
Enable JDK auto-detection and project SDK setup by default. Set REMOTE_DEV_JDK_DETECTION=false to disable.
Is running inside Docker container: 1

And the ./remote-dev-server.sh --help gives a new option

  REMOTE_DEV_LEGACY_PER_PROJECT_CONFIGS      set to '1' to keep the per-project config/system directories as in 2023.2 and earlier

I didn't find any documentation about this change of directories. Can you point me to anything? 

Also how long will the REMOTE_DEV_LEGACY_PER_PROJECT_CONFIGS option be supported?

Thanks!