Release v0.31.0

[SoloJacobs]

Authors please free to review 🌞

• [ENHANCEMENT] fix(provider): reduce lock contention #4809, siavashs, 2025-12-18
• [ENHANCEMENT] fix: max-silence-size-bytesin doc #4805, heliapb, 2025-12-31
• [FEATURE] Support templating in webhook url fields #4798, waltherlee, 2026-01-05
• [ENHANCEMENT] docs: update description of filter query params in openapi doc #4810, waltherlee, 2026-01-05
• [ENHANCEMENT] docs: Update slack_config attachments documentation links #4802, waltherlee, 2026-01-05
• [FEATURE] feat: add config directive to pass wechat api secret via file #4734, TheMeier, 2026-01-05
• [ENHANCEMENT] Use matchers for inhibit rules examples #4131, l-c-t, 2026-01-05
• [FEATURE] Add support for AuthSecret from file #3087, Git-Jiro, 2026-01-08
• [ENHANCEMENT] docs: add notification integrations #4901, siavashs, 2026-01-19
• [ENHANCEMENT] update expr for AlertmanagerClusterFailedToSendAlerts to exclude value 0 #4872, juzhao, 2026-01-26
• [FEATURE] Add chat_id_file configuration parameter for Telegram #4909, gulshank0, 2026-01-28
• [BUGFIX] fix(jira): prevent hostname corruption in Cloud API URL replacement #4892, alex-deploys, 2026-01-28

These are the PRs I did not deem user facing:

• Set testdata / example CA expiry to 20 years from issue date #4112, dswarbrick, 2025-12-21
• mantine-ui: Add API client to manage data fetching and caching #4829, sysadmind, 2025-12-28
• fix(bug): memory leak in tracing client #4828, cxdy, 2026-01-09
• use promauto to register silence state metrics #4865, SungJin1212, 2026-01-09
• Group otel dependencies #4876, SuperQ, 2026-01-12
• chore(notify.go): Clean up duplicate code in RetryStage.exec #4893, rudo-thomas, 2026-01-28
• chore: update bootstrap css #4910, TheMeier, 2026-01-28
• Add arbitrary key/value data store to the nflog #4899, Spaceman1701, 2026-01-28

❗ Edit with new entries:

• [BUGFIX] Set spellcheck=false attribute on silence filter <input> #4811, SoloJacobs, 2026-01-30
• [FEATURE] smtp: Customize the SSL/TLS port support (#4757) #4818, Gintoms, 2026-01-30
• [FEATURE] feat(slack): add support for top-level text field in Slack notificati… #4867, mihir-dixit2k27, 2026-01-30
• [BUGFIX] Fix: Allow empty group_by to override parent route #4825, ADITYATIWARI342005, 2026-01-30
• [FEATURE] feat(config): enhance email notifier configuration validation #4826, TheMeier, 2026-01-30
• [ENHANCEMENT] chore: document slack app configs #4871, heliapb, 2026-01-30
• [ENHANCEMENT] docs(opsgenie): fix description of api_url field #4908, TheMeier, 2026-01-30
• [FEATURE] Support global Telegram bot token #4823, guoard, 2026-01-30
• [BUGFIX] Jira Integration: fix for handling jira api v3 with ADF #4756, holger-waschke, 2026-01-30

and not user-facing

• refactor(config): use cmp.Or to merge global config defaults #4812, TheMeier, 2026-01-30
• chore(api): replcae deprecated otel.WithRouteTag #4897, TheMeier, 2026-01-30