Topic
sre
Reliability work: upgrade procedures for clustered systems, monitoring changes and the checks that keep a change reversible.
2 engineering notes.
- Prometheus 3 changes queries, not just the binaryThe 3.0 migration guide is a list of silent behaviour changes: regex newlines, left-open ranges, normalized le labels and strict scrape content types.
- PostgreSQL 19 is a release candidate: what a Patroni upgrade should checkPostgreSQL 19 RC1 is out, RC2 lands 12 November and general availability is planned for 19 November 2026. A planning checklist for a Patroni-managed cluster.
Related service: Reliability Engineering →
