Release v0.28.0

[SuperQ]

• [CHANGE] Templating errors in the SNS integration now return an error. Return error when TmplText errors in sns notifier #3531 Return error when TmplText errors in sns notifier #3879
• [CHANGE] Adopt log/slog, drop go-kit/log chore!: adopt log/slog, drop go-kit/log #4089
• [FEATURE] Add a new Microsoft Teams integration based on Flows feat(3920): add msteamsv2 receiver #4024
• [FEATURE] Add a new Rocket.Chat integration feat: add rocketchat notifier #3600
• [FEATURE] Add a new Jira integration jira integration #3590 chore: refactor the JIRA notifier #3931
• [FEATURE] Add support for GOMEMLIMIT, enable it via the feature flag --enable-feature=auto-gomemlimit. feat(env): Add automatic memory limit handling #3895
• [FEATURE] Add support for GOMAXPROCS, enable it via the feature flag --enable-feature=auto-gomaxprocs. feat(env): add auto go maxprocs #3837
• [FEATURE] Add support for limits of silences including the maximum number of active and pending silences, and the maximum size per silence (in bytes). You can use the flags --silences.max-silences and --silences.max-silence-size-bytes to set them accordingly Add limits for silences #3852 Limits should include expired silences #3862 Fix TestSilenceLimits tests #3866 Silence limits as functions #3885 Rename silence limit to max-silence-size-bytes #3886 Fix MaxSilences limit causes incomplete updates of existing silences #3877
• [FEATURE] Muted alerts now show whether they are suppressed or not in both the /api/v2/alerts endpoint and the Alertmanager UI. #3513: Mark muted alerts #3793 #3513: Show muted alerts in the Alert Groups API #3797 #3513: Add GroupMarker interface #3792
• [ENHANCEMENT] Add support for content, username and avatar_url in the Discord integration. content and username also support templating. Extend discord messages with content #4007
• [ENHANCEMENT] Only invalidate the silences cache if a new silence is created or an existing silence replaced - should improve latency on both GET api/v2/alerts and POST api/v2/alerts API endpoint. bugfix: only increment Silences version if a silence is added #3961
• [ENHANCEMENT] Add image source label to Dockerfile. To get changelogs shown when using Renovate Add image source label to dockerfiles #4062
• [ENHANCEMENT] Build using go 1.23 Update Go to 1.23 #4071
• [ENHANCEMENT] Support setting a global SMTP TLS configuration. Support default SMTP TLS config #3732
• [ENHANCEMENT] The setting room_id in the WebEx integration can now be templated to allow for dynamic room IDs. Allow webex roomID from template #3801
• [ENHANCEMENT] Enable setting message_thread_id for the Telegram integration. Enable setting ThreadId for Telegram notifications #3638
• [ENHANCEMENT] Support the since and humanizeDuration functions to templates. This means users can now format time to more human-readable text. feat: add time helpers #3863
• [ENHANCEMENT] Support the date and tz functions to templates. This means users can now format time in a specified format and also change the timezone to their specific locale. Add date and tz functions to templates #3812
• [ENHANCEMENT] Latency metrics now support native histograms. feat: add optional native histogram support to latency metrics #3737
• [ENHANCEMENT] Add timeout option for webhook notifier. Add timeout option for webhook notifier. #4137
• [BUGFIX] Fix the SMTP integration not correctly closing an SMTP submission, which may lead to unsuccessful dispatches being marked as successful. fix: close SMTP submission correctly to handle errors #4006
• [BUGFIX] The ParseMode option is now set explicitly in the Telegram integration. If we don't HTML tags had not been parsed by default. fix(telegram): passing ParseMode when sending message #4027
• [BUGFIX] Fix a memory leak that was caused by updates silences continuously. bugfix: fix leaking of Silences matcherCache entries #3930
• [BUGFIX] Fix hiding secret URLs when the URL is incorrect. Fix: Hide config.SecretURL when the URL is incorrect. #3887
• [BUGFIX] Fix a race condition in the alerts - it was more of a hypothetical race condition that could have occurred in the alert reception pipeline. Fix race conditions in the memory alerts store #3648
• [BUGFIX] Fix a race condition in the alert delivery pipeline that would cause a firing alert that was delivered earlier to be deleted from the aggregation group when instead it should have been delivered again. Fix race condition in dispatch.go #3826
• [BUGFIX] Fix version in APIv1 deprecation notice. Fix version in APIv1 deprecation notice #3815
• [BUGFIX] Fix crash errors when using url_file in the Webhook integration. notify/webhook: Fix crash on errors when url_file is used (#3798) #3800
• [BUGFIX] fix Route.ID() returns conflicting IDs. Fix Route.ID() returns conflicting IDs #3803
• [BUGFIX] Fix deadlock on the alerts memory store. Fix for deadlock issue #3682 #3715
• [BUGFIX] Fix amtool template render when using the default values. amtool template render improve default data #3725
• [BUGFIX] Fix webhook_url_file for both the Discord and Microsoft Teams integrations. fix: discord & msteams webhook_url_file configuration #3728 Send a slice of values to callback function instead of references #3745
• [BUGFIX] Fix wechat api link Updated wechat api link #4084
• [BUGFIX] Fix build info metric Fix build info metric #4166