When a user changes a password (or resets password), inform user that token_auth will change #9833
Piwik stopped archiving a few days ago and I didn't know why until i found this thread:
Advanced users may know that a new password also causes a new token. But people new to piwik should be told about it. For example via password changing e-mail or after the password changing dialogue.
Very good point. We definitely need to mention this as it is not "normal" that token changes when you change password. It will break all kinda API access and will cause other apps and integrations etc to fail.
Also related to this is : #6559 which we will hopefully tackle in Piwik 3. It's very much needed.