@Tim_St Welcome to the forum!
I moved your comment into its own topic, because it was not related to the thread in which you commented.
Bitwarden does have a password history for each vault item, which stores up to 5 previously saved passwords. All you have to do is to open the login item for viewing (not editing) and scroll to the bottom, where you will see:
Password history: 5
(the number indicates how many entries are currently stored in the history). Click on the number (e.g., on the 5 in the above example), and it will display the previous passwords for that vault item (with timestamps).
There is also a global password history for the password generator. Click on the “Generator” 
icon at the bottom of the browser extension window, then scroll down and click on Password history. This shows past password generated using this browser extension, with timestamps; I’m not sure what the size limit is for this global histroy (mine currently has over 50 entries, going back more than 4 months).