Today ‘WAS’ got it’s new update.
Updates:

1. Automatic Version saving.
2. Moving documents in any version just by a single command.
3. Checking if the current document is saved in WAS or not.
4. Added ‘differ’ command to check the difference between document versions.

Upcoming Updates: In the next update I will check for security issues and fix those.
And also decide whether “WAS” will get a GUI or Not.