- update to 2.3.21 and pigeonhole 0.5.21
Dovecot 2.3.21
* lib-oauth2: Allow JWT tokens to be validated with missing typ field.
The typ field is left out by some key issuers to conserve space,
notably kubernetes. Now missing typ is tolerated, but if present, it
still must be "jwt".
+ auth: Auth passdb and userdb reply can contain "event_=value"
which will be added to login event and mail user event respectively.
+ lib-master: Set process title during various initialization stages to
clearly describe what the process is waiting on.
+ lib-storage: The mail_temp_scan_interval is now fuzzed incrementing it
by 0..30% based on username's hash to reduce the chance of load spikes.
+ lib-storage: The temp file scan has been moved from the open of the
mailbox to the close, to reduce the latency perceived by users.
+ stats: If metric has fields specified, all these fields are
exported as counters to prometheus exposition.
See https://doc.dovecot.org/configuration_manual/stats/openmetrics/.