If the used repository has logging enabled, Cervisia can present you a history of certain events like checkouts, commits, rtags, updates and releases. Choose History from the View menu, and Cervisia will issue the command cvs history -e -a. Note that this fetches the complete logging file from the server, i.e. a list of the events for all users and all modules. This can be a huge amount of data!
Now you can see the list of events, sorted by date. In the second column, the type of the event shown:
Checkout - The user who is displayed in the 'Author' column has checked out a module
Tag - A user has used the command 'cvs rtag'. Note that the usage of 'cvs tag' (as done by Cervisia's Tag command) is not recorded in the history database. This has historical reasons (see the CVS FAQ).
Release - A user has released a module. Actually, this command is rarely used and not of much value.
Update, Deleted - A user has made an update on a file which was deleted in the repository. As a consequence, the file was deleted in his working copy.
Update, Copied - A user has made an update on a file. A new version was copied into working directory
Update, Merged - A user has made an update on a file. The modifications in the repository version on the file were merged into his working copy.
Update, Conflict - A user has made an update on a file, and a conflict with his own modifications was detected.
Commit, Modified - A user commited a modified file.
Commit, Added - A user added a file and commited it.
Commit, Removed - A user removed a file and commited it.