pg_exporter v1.4.1

Subscription count and label validation fixes; RPM rename

By Ruohang Feng | July 29, 2026

v1.4.1 is a maintenance release focused on metric accuracy and RPM upgrade compatibility.

Highlights

Fix pg_subrel_count overcounting when parallel logical replication apply workers are active: deduplicate pg_stat_subscription by subscription ID and name before aggregating subscription relation states
If a query result omits a configured LABEL column, that collector’s scrape now fails atomically instead of emitting an empty label or retaining stale results; other non-fatal collectors continue normally
Rename the official RPM package and artifact prefix from pg_exporter to pg-exporter; the new package provides and obsoletes the legacy name, allowing direct upgrades
Refresh version and standalone package metadata, add missing-label regression coverage, and validate RPM configuration, artifact names, and compatibility metadata in CI

Custom collector SQL must return every LABEL column; the result schema must remain complete even when the query returns zero rows
If automation matches GitHub RPM file names directly, update pg_exporter-*.rpm to pg-exporter-*.rpm