P

Prometheus Alertmanager

P
Prometheus Alertmanager Observability v0.33.1

0.33.1 / 2026-07-04

[BUGFIX] doc: fix missing notification_reason field in webhook documentation (#5329) [BUGFIX] silences: fix silences snapshot missing legacy matchers field. This caused a bug that prevented older alertmanager versions from reading newer snapshots unnecessarily. (#5330) [BUGFIX] silence with no matchers should populate an empty array in API response (#5331)

P
Prometheus Alertmanager Observability v0.33.0

0.33.0 / 2026-06-12

[CHANGE] The '--enable-feature=auto-gomaxprocs' option has been removed. This flag had no effect since v0.29 and was deprecated in v0.32. It can be safely removed from any startup scripts. #5090, #5251 [CHANGE] Add group-key-in-metrics feature flag. #5047 [CHANGE] Move AlertMarker, GroupMarker to marker package. #5047 [CHANGE] Remove alertmanager_marked_alerts. #5047 [CHANGE] Remove the following…

P
Prometheus Alertmanager Observability v0.32.1

0.32.1 / 2026-04-29

[BUGFIX] dispatcher: Fix issue with dispatching to a contended route. #5179 [BUGFIX] ui: Provide prebuilt ui assets in release. #5191 [ENHANCEMENT] ui: Support building artifacts in containers with Docker or Podman. #5102

P
Prometheus Alertmanager Observability v0.32.1-rc

0.32.1-rc.0 / 2026-04-27

[BUGFIX] dispatcher: Fix issue with dispatching to a contended route. #5179 [BUGFIX] ui: Provide prebuilt ui assets in release. #5191 [ENHANCEMENT] ui: Support building artifacts in containers with Docker or Podman. #5102

P
Prometheus Alertmanager Observability v0.32.0

0.32.0 / 2026-04-08

[CHANGE] go get github.com/prometheus/alertmanager/ui will now fail as compiled UI assets are no longer checked into the repository. Downstream builds that rely on these assets being present in the source tree must now build the UI from source. #5113 [CHANGE] The '--enable-feature=auto-gomaxprocs' option is deprecated and will be removed in v0.33. This flag currently has no effect and can be safel…

P
Prometheus Alertmanager Observability v0.31.1

0.31.1 / 2026-02-11

[BUGFIX] docs: Fix email TLS configuration example. #4976 [BUGFIX] docs: Add telegram bot token options to global config docs. #4999

P
Prometheus Alertmanager Observability v0.31.0

0.31.0 / 2026-02-02

[ENHANCEMENT] docs(opsgenie): Fix description of api_url field. #4908 [ENHANCEMENT] docs(slack): Document missing app configs. #4871 [ENHANCEMENT] docs: Fix max-silence-size-bytes. #4805 [ENHANCEMENT] docs: Update expr for AlertmanagerClusterFailedToSendAlerts to exclude value 0. #4872 [ENHANCEMENT] docs: Use matchers for inhibit rules examples. #4131 [ENHANCEMENT] docs: add notification integrati…

P
Prometheus Alertmanager Observability v0.30.0

0.30.0 / 2025-12-15

[CHANGE] Don't allow calling qids with an empty ids list. #4707 [FEATURE] Add mattermost integration. #4090 [FEATURE] Add saturday to the first day of the week options. #4473 [FEATURE] Add templating functions for working with urls. #4625 [FEATURE] cluster: Allow persistent peer names. #4636 [FEATURE] dispatch: Add start delay. #4704 [FEATURE] provider: Add subscriber channel metrics. #4630 [FEATU…

P
Prometheus Alertmanager Observability v0.30.0-rc

0.30.0-rc.0 / 2025-12-10

[CHANGE] Don't allow calling qids with an empty ids list. #4707 [FEATURE] Add mattermost integration. #4090 [FEATURE] Add saturday to the first day of the week options. #4473 [FEATURE] Add templating functions for working with urls. #4625 [FEATURE] cluster: Allow persistent peer names. #4636 [FEATURE] dispatch: Add start delay. #4704 [FEATURE] provider: Add subscriber channel metrics. #4630 [FEATU…