Lombok works in IDEA CE 2018.1 actually, just tried.
Although, you might want to update or remove-then-reinstall that Lombok plugin after upgrading IDEA
IntelliJ Lombok plugin 0.15.17.2
IntelliJ IDEA 2018.1 (Community Edition)
Build #IC-181.4203.550, built on March 27, 2018
macOS 10.13.3
Adding on to the above answers, because I cannot comment. It is unnecessary to remove Lombok. I didn't see update option at first in plugins list (even after reloading the list), but when you enter 'browse repositories' and search for Lombok there, you should be seeing an update option, as I did.
Don't forget to re-enable annotation processing, which in my case was disabled after the update.
The following is a solution works for me:
Have a look at link for more information.
Lombok works in IDEA CE 2018.1 actually, just tried.
Although, you might want to update or remove-then-reinstall that Lombok plugin after upgrading IDEA
Screenshots: IDEA 2018.1 & Lombok plugin in use
Adding on to the above answers, because I cannot comment. It is unnecessary to remove Lombok. I didn't see update option at first in plugins list (even after reloading the list), but when you enter 'browse repositories' and search for Lombok there, you should be seeing an update option, as I did.
Don't forget to re-enable annotation processing, which in my case was disabled after the update.
Just uninstall Lombok Plugin and install it again.