• [FEATURE] Add stat_progress_vacuum collector by @ianbibby in #1141
• [FEATURE] Add buffercache_summary collector by @sfc-gh-pnuttall in #1165
• [FEATURE] stat_statements: export query itself together with queryId by @Delorien84 in #940
• [ENHANCEMENT] Improve error handling for Server.Scrape by @BoweFlex in #1158
• [ENHANCEMENT] stat_user_tables: record table-only size bytes in addition to the total size bytes by @Sticksman Sticksman in #1149
• [ENHANCEMENT] (chore) Fix a typo and use slices.Contains by @cristiangreco in #1176
• [ENHANCEMENT] Update mixin to latest changes from grafana/postgres_exporter by @cristiangreco, @gaantunes, @v-zhuravlev and @mshahzeb in #1179
• [ENHANCEMENT] Exclude the metrics fetching session's data from pg_stat_activity by @kmoppel in #1185
• [BUGFIX] Ensure database connections are always closed by @cristiangreco and @dehaansa in #1177
• [BUGFIX] Fix superfluous semicolon breaking query in process_idle by @sysadmind in #1197