Timeline reflects the complete course of the project. It shows comments, attribute changes and @mentions. From the timeline you can go directly to your file and don’t have to browse there. If you set an attribute on a file or folder, this entry will be reflected in the timeline.
The timeline also shows Git commits if your project was created as a Git repository.
When you work in a Git project, each timeline entry is a version in Git (a commit). If you click on it, you can see the files that were present in the Git commit.
You can also quickly browse entries in the Timeline. Click on the search field or press CTRL-F to activate the search in the Timeline.
The Timeline can search for comments, attributes text, members and file names.