Redmine 4.2.0 and 4.2.1 allow existing user sessions to continue upon enabling two-factor authentication for the user's account, but the intended behavior is for those sessions to be terminated.
| Software | From | Fixed in |
|---|---|---|
| redmine / redmine | 4.2.0 | 4.2.0.x |
| redmine / redmine | 4.2.1 | 4.2.1.x |