silverstripe-framework/docs/en/changelogs/3.1.5.md

3.1.5

Upgrading

• If running an application in an environment where user security is critical, it may be necessary to assign the config value Security.remember_username to false. This will disable persistence of user login name between sessions, and disable browser auto-completion on the username field. Note that users of certain browsers who have previously autofilled and saved login credentials will need to clear their password autofill history before this setting is properly respected.