How to manage multiple versions of short video scripts?

After multiple revisions of a short video script, the most common chaos is shooting with an old draft while editing with a new one. I use a naming convention of date plus version number, such as 0606_v3_approved, and avoid names like "Final Version 2." Every time a change is made, I keep a revision history in the same document, highlighting changes to the hook, voiceover, shots, and subtitles…