Some conflicts were found in the installation area: jbr/bin/java is modified

update with the tool https://www.jetbrains.com/toolbox-app/ worked for me

As @paul-praet commented, the following seems to work:

1. close IDE and terminate all java/gradle processes
2. delete or move the jbr sub-directory from the idea-IU-*** directory
3. start the IDE
4. perform the update using "Check for Updates" menu entry

I fought with this for a while. There's a long thread here that suggested several things, none of which worked for me. In summary:

• launching IDEA from a symlinked directory caused this for some people
• some people were able to close all existing projects and apply the update from the welcome screen (it's available from a Configure | Check for Updates menu item on the bottom of the welcome screen).

None of that worked for me, so I eventually just downloaded a fresh full install instead of the patch :|