Annotate with Git Blame: Commit

Look at the commit a change was part of from Annotate with Git Blame

To see when a line of code was changed, right-click the gutter and select Annotate with Git Blame. Click the gutter to see the commit this change was a part of in the Log tab of the Git tool window ⌘9 (macOS) / Alt+9 (Windows/Linux) and check the commit message and other changes in this commit.

Related Resources

Magic Wand
Use the Magic Wand to Resolve Simple Conflicts
VCS Popup
Open VCS actions using the keyboard
Interactive rebase
Using interactive rebase in IntelliJ IDEA