Hi all, I hope you like the update 😁!
The plugin command changes were made so that existing plugin commands should work how they did before, so you should be able to update without worrying about needing to update any existing plugin commands if it already worked how you wanted it to work.
If you'd like to see the parameter changes, the wiki page has already been updated: https://caspergaming.miraheze.org/wiki/CGMZ_Text_To_Speech