- Introduce once-per-minute query statistics collection
- Enabled for PostgreSQL 9.4+
- This replaces the old logic for query stats without text (statement_text_frequency),
and is always active - Statistics data gets sent with every full snapshot
- Backend counts: Support retrieving stats for Postgres 9.5 and older
- Log Insights: Add support for detecting aggressive vacuums (Postgres 11+)
- Parse serialization failure log events (U138 and U139)
- Have systemd restart the collector after crashes Dom Hutton #23