Overview Dashboard

Alertmanager Open Issues — Analysis Report

• Repository: prometheus/alertmanager
• Generated: 2026-07-24 10:32 UTC
• Open issues analysed (PRs excluded): 324

Executive Summary

• 102 feature/enhancement requests dominate the backlog, vs 8 confirmed bugs.
• 27 issues (8%) have had no activity for over a year; the median issue is 1273 days old.
• 15 issues are blocked waiting on the reporter for more information.
• The single largest driver is notification delivery: component/notify is the most-applied component label.

Overview by Category

Category	Count	%
Bug	8	2%
Documentation	11	3%
Cleanup / Tech-debt	2	1%
Feature / Enhancement	102	31%
Question	9	3%
Support	24	7%
Change / Proposal	1	0%
Friction	1	0%
Release / Packaging	1	0%
Uncategorized	165	51%
Total	324	100%

Overview by Component

Component	Count
component/notify	67
component/ui	30
component/config	18
component/silences	17
component/api	14
component/templating	13
component/high availability	12
component/inhibition	4
component/cli	3
component/storage	3
component/dispatch	2
component/nflog	2

Most Up-voted Issues (by reactions)

Issue	Reactions	Comments	Category
#2217 Support Block Kit with Slack notifications	192	24	Feature / Enhancement
#226 Send resolved notification for silenced alerts	106	71	Feature / Enhancement
#3221 Send subsequent notifications to a slack thread instead of channel	50	14	Feature / Enhancement
#1860 Feature request: provide a way to acknowledge a firing alert	45	27	Feature / Enhancement
#730 Silence notifications	45	14	Feature / Enhancement
#2940 Add google chat receiver	42	17	Feature / Enhancement
#2556 Darkmode	35	2	Uncategorized
#3503 [Feature] Support adaptive cards for MSTeams	34	12	Feature / Enhancement
#2165 Feature request: Slack alert threading	30	6	Uncategorized
#2120 Feature suggestion: Add Gotify as receiver	29	16	Uncategorized
#1188 Add basic arithmetic functions to templating funcmap	27	19	Feature / Enhancement
#3729 Feature suggestion: Add Apprise library to support more notification services	25	5	Feature / Enhancement
#1196 Feature request: restrict the identity of silence creator to one passed by some HTTP header	24	27	Feature / Enhancement
#3919 Feature Request: Matrix Receiver	21	3	Uncategorized
#3726 Add extensive templating helpers based on Masterminds/sprig	21	13	Feature / Enhancement

Triage Findings

The duplicate-cluster and triage-heuristic sections require manual/LLM analysis and are maintained separately; this automated run only refreshes the deterministic sections below.

Blocked: Waiting for Reporter (15)

Tagged kind/more-info-needed / waiting-for-user-input:

• #5087 Alertmanager stops responding to HTTP requests under load
• #4110 [JIRA_CONFIG] Template fields alert manager --> jira integration does not work
• #3729 Feature suggestion: Add Apprise library to support more notification services
• #3677 When the alarm is restored, the unrecovered alarms will be issued together
• #3527 --web.page-title flag as Prometheus "Core", it's possibile?
• #3384 Alerts are not closed at Opsgenie receiver
• #3339 [feature-request] Use time_intervals in Silences function module
• #3165 Missing CORS headers for DELETE in API v2
• #2852 Prometheus link in Alertmanager notification loads latest data
• #2440 Alertmanager pod msg="dropping messages because too many are queued"
• #2404 AlertManager not sending all alerts to Webhook endpoint.
• #2334 group_by: [alertname, alertstate] doesn't work as it should
• #2164 Expired silences are not garbage collected after --data.retention has passed
• #2151 one alert firing,but over two resloved message received
• #1271 hostname not supported in --cluster.advertise-address

Stale: No Activity > 1 Year (27)

Sorted by staleness (most stale first):

• #1881 Source links do not work when on same domain as Alertmanager — 1794d idle
• #3211 Clarify lack of route time interval inheritance in docs — 1029d idle
• #3341 Alertmanager sending "empty" endsAt to webhook when alert is not resolved. — 1003d idle
• #2151 one alert firing,but over two resloved message received — 759d idle
• #3393 Remove function in KV is hard to use from templates — 700d idle
• #4151 Feature Request: Support for Dynamic Merging or Patching of Routing Tree Subtrees — 501d idle
• #4138 Add pagination for silences list — 501d idle
• #4120 [FEATURE REQUEST] Alertmanager receiver for Suppressed Alerts — 501d idle
• #4064 Alerts that should be inhibited fire on Alertmanager reload/restart — 501d idle
• #4004 Add docker tags for major/minor/patch versions — 501d idle
• #3902 AlertManager doesn't send some of alerts to Pagerduty — 501d idle
• #3861 [UI] Feature: Localtime / Timezone option — 501d idle
• #3808 Different aggregation groups can share the same nflog — 501d idle
• #3766 Guidance on pagination token — 501d idle
• #3762 Pass Go's time function into the alertmanager templates to be able to do time calculations — 501d idle
• #3667 Discord integration: no possibility to configure the webhook content object — 501d idle
• #3639 OpsGenie cross-team deduplication - alias prefix — 501d idle
• #3551 HA Alertmanager can send conflicting notifications in certain cases — 501d idle
• #3496 When there is a problem with one of the mailboxes, just skip it — 501d idle
• #3492 [Feature] Additional validation to prevent extremely broad silences — 501d idle
• #3490 Notifications are not resilient to bad templates — 501d idle
• #2320 Repeated notifications sooner than repeat_interval — 498d idle
• #3326 Receiving alert more often then repeat interval — 475d idle
• #2254 Inhibit Rules should be able to consider different labels in their equal statement — 458d idle
• #4361 Allow mutating alerts on pipeline stages — 453d idle
• #4358 Silence count metric collection — 453d idle
• #3108 Proposal: allow alert manager to read from secret resources — 395d idle

Full Issue Listing by Category

Bug (8)

• #1005 duplicate repeated notifications — component/high availability, component/notify
• #2340 Alertmanager UI is not opening using IPV6 literal — component/ui
• #2783 "target-only" inhibition rules only work if there're other alerts firing — —
• #3384 Alerts are not closed at Opsgenie receiver — —
• #3641 Requests to the Pushover API will fail if the the contents of the user key file or token file end with a newline character — —
• #3808 Different aggregation groups can share the same nflog — —
• #3817 How to fix non unique GroupKeys? — —
• #3849 amtool ZSH completion is broken — —

Documentation (11)

• #1602 No documentation on how to setup a custom email template — —
• #1740 Alertmanager cannot access its own data with latest Docker image — —
• #1855 Documentation for docker usage — —
• #2228 Incomplete AlertManager API Documentation — —
• #2424 Add description for Architecture diagram in README — —
• #3211 Clarify lack of route time interval inheritance in docs — —
• #3213 Document first day of week for time intervals — —
• #3393 Remove function in KV is hard to use from templates — —
• #3401 Documentation does not cover flags — —
• #4737 Draft Proposal: Write down specifications which will be used for acceptance tests — —
• #5111 clustering: --cluster.advertise-address implicitly expects an IP address and does not let one use a hostname — component/high availability

Cleanup / Tech-debt (2)

• #2906 Improve actor lifecycle / shutdown management in main.go — —
• #3778 Move pkg/labels into matcher package — —

Feature / Enhancement (102)

• #172 Show dispatched notifications in web UI — component/storage, component/ui
• #180 Inhibits should be per-route rather than global — component/config, component/notify
• #225 Consider relaxed retrying for resolved notifications — —
• #226 Send resolved notification for silenced alerts — component/notify
• #344 Be able to silence based on generatorURL — component/silences
• #461 Ensure same timestamp context for all evaluations — component/notify
• #462 Allow comment log per silence — component/silences, component/storage, component/ui
• #524 Alert page should automatically refresh — component/ui
• #584 Preview of alert utilizing templating and so on — component/notify, component/templating
• #634 feature request: cancel pushover notifications when the alert resolves itself — component/notify
• #654 Feature request: Support Slack Attachments in alert templates — component/config, component/notify, component/templating
• #730 Silence notifications — component/notify, component/silences
• #810 Display relative times in the UI — component/ui
• #813 Add routing tree back to the UI — component/ui
• #868 Display "natural" grouping (and make groups linkable) — component/ui
• #933 Receiver filter matching incorrectly — component/ui
• #956 Change color of buttons — component/ui
• #1178 allow user to request consistent ordering / sorting of grouped alerts — component/templating
• #1188 Add basic arithmetic functions to templating funcmap — component/templating
• #1196 Feature request: restrict the identity of silence creator to one passed by some HTTP header — component/silences
• #1304 Eventstream endpoint — —
• #1305 Show alert notification information — component/ui
• #1466 Make alertmanager config on status page readable — component/ui
• #1497 Show Related Expired Silences on Alerts page — component/silences, component/ui
• #1722 Old peer is not forgotten properly — component/high availability
• #1803 Alert housekeeping and Pagerduty — component/notify
• #1826 Links in annotations - support relative URLs — component/ui
• #1849 Support building alert filters before evaluating them — component/ui
• #1860 Feature request: provide a way to acknowledge a firing alert — —
• #1983 No way to consume the API v2 client code separately from the main module — component/api
• #1997 Feature Suggestion - Webhook integration should indicate timeout — component/notify
• #2064 Cannot discover web.external_url value from API — component/api, component/ui
• #2201 Feature Request: add an optional not_equal field to inhibit_rules — component/config
• #2205 Implement proper retries for integrations — component/notify
• #2217 Support Block Kit with Slack notifications — component/notify
• #2254 Inhibit Rules should be able to consider different labels in their equal statement — component/silences
• #2304 [feature request] Log each successfully sent notification with metadata — component/notify
• #2326 Show similar existing silences when creating a new silence — component/ui
• #2334 group_by: [alertname, alertstate] doesn't work as it should — component/notify
• #2845 Offer solution to test receivers — component/notify
• #2887 AlertManager/Opsgenie - I can't template only by the responder type field — component/notify
• #2940 Add google chat receiver — component/notify
• #3127 [feature-request] Generate JSON and base64 encode to generate silence payload for Karma — —
• #3165 Missing CORS headers for DELETE in API v2 — —
• #3221 Send subsequent notifications to a slack thread instead of channel — component/notify
• #3231 Include status code label to the numTotalFailedNotifications for all notifiers — component/notify
• #3258 Send image via Telegram notification — component/notify
• #3351 Webhooks for firing alerts contain zeroed EndsAt — component/notify
• #3367 need option to fire all currently firing alerts after mute time interval is over. — —
• #3379 Proposal: improve silence API — component/api, component/silences
• #3382 Expired silences are not garbage collected after -data.retention has been changed from 2400h to 169h. — component/nflog, component/silences
• #3395 Port number template functions from prometheus to alertmanager — component/templating
• #3446 Re-add group key to alert groups endpoint — component/api
• #3456 Add Date Time Picker to the Routing Tree Editor — component/ui
• #3490 Notifications are not resilient to bad templates — —
• #3492 [Feature] Additional validation to prevent extremely broad silences — —
• #3496 When there is a problem with one of the mailboxes, just skip it — —
• #3503 [Feature] Support adaptive cards for MSTeams — —
• #3508 Add support for Huawei WeLink — —
• #3539 Rename VictorOps to Splunk OnCall — —
• #3614 [Feature Request] Provide capability for DELETE /silences/<id> to really delete silence — —
• #3639 OpsGenie cross-team deduplication - alias prefix — —
• #3642 MSTeams integration message cards actions not supported — component/notify
• #3664 PagerDuty alerts are stuck if I mute the alert after it's firing but before it's resolved — —
• #3667 Discord integration: no possibility to configure the webhook content object — —
• #3726 Add extensive templating helpers based on Masterminds/sprig — —
• #3729 Feature suggestion: Add Apprise library to support more notification services — —
• #3741 JSON output flag not implemented for amtool config routes test — component/config
• #3762 Pass Go's time function into the alertmanager templates to be able to do time calculations — —
• #3813 Feature request: Please sign your releases — —
• #3825 Have a way to mute alert until it's resolved to receive a resolved notification once it's fixed — —
• #3834 FR: sort matchers on silences page — component/ui
• #3861 [UI] Feature: Localtime / Timezone option — component/ui
• #3889 amtool does not have a way to specify a time to test with. — component/config
• #3925 Feature Request: Enable Sending AdaptiveCards to Webex for Enhanced Alert Notifications — —
• #3932 Inhibition rules evaluation performance on many target alerts — —
• #3953 [Feature Request] Add visibleTo field to OpsGenie integration — component/notify
• #3957 [feature request] matchers to work with annotations — —
• #3959 Feature request: Add group creation time to group_by hash — —
• #4004 Add docker tags for major/minor/patch versions — —
• #4032 feature request - templated route matcher expressions — —
• #4033 Feature request: slack_configs.send_resolved a templatable field — —
• #4034 Feature Request: Convert the room_id string in the webex_config to a secret value. — —
• #4064 Alerts that should be inhibited fire on Alertmanager reload/restart — —
• #4065 Make start of week configurable via configuration file/command line — —
• #4110 [JIRA_CONFIG] Template fields alert manager --> jira integration does not work — —
• #4120 [FEATURE REQUEST] Alertmanager receiver for Suppressed Alerts — component/silences
• #4121 [FEATURE REQUEST] Alertmanager metrics for silenced alerts — component/silences
• #4138 Add pagination for silences list — component/silences
• #4151 Feature Request: Support for Dynamic Merging or Patching of Routing Tree Subtrees — —
• #4265 Feature Request - Support Grafana's log format — —
• #4287 Feature Request - An extra button in the Alert.ele that directs to the https:///alerts?search=<ALERT_NAME> — component/ui
• #4303 [UI]: Show creator and comment for silencer in the Silences list view for better context — component/ui
• #4342 Email receiver OAuth support — component/notify
• #4358 Silence count metric collection — —
• #4361 Allow mutating alerts on pipeline stages — —
• #4395 Load smtp_auth_username from file — component/notify
• #4435 Variable Substitution in configuration — —
• #4441 Feature Request: Opsgenie/JSM Response logging — —
• #4442 Feature request: Extend "new silence" form to pass creator as GET parameter — —
• #4873 Disable authentication for Management API — component/api
• #4912 Add Alertmanager to the OSS-Fuzz project — —

Question (9)

• #603 Accessing current date / other functions in the Alertmanager Go templates — component/notify, component/templating
• #924 Alert limitation discussion: Maximum number of alerts to display in UI — component/ui
• #1042 Log sent alerts from alert manager to file — component/notify
• #3551 HA Alertmanager can send conflicting notifications in certain cases — —
• #3743 Why is it not supported to continue to search for a matching receiver and continue sending after the previous receiver fails? — component/notify
• #3766 Guidance on pagination token — —
• #3774 Confusing comments in silence.go — component/silences
• #4293 Alertmanager native integration jira problem — component/notify
• #4319 msteamsv2 Receiver does not support Summary field — —

Support (24)

• #1271 hostname not supported in --cluster.advertise-address — component/high availability
• #2222 Alertmanager cluster send duplicate notification — —
• #2384 Alertmanagers in HA mode goes sometimes out of sync — component/high availability
• #2440 Alertmanager pod msg="dropping messages because too many are queued" — component/high availability
• #2492 emails are resent on config reload if group contents has changed — —
• #2553 Prometheus Alert manager to send the scraping to Moogsoft — —
• #2734 multiple resolved alerts — —
• #2739 linebreaks in label values are not propperly displayed in emails — component/templating
• #2852 Prometheus link in Alertmanager notification loads latest data — —
• #3326 Receiving alert more often then repeat interval — —
• #3331 amtool: /etc/amtool.yml or $home/.config/amtool/ on windows server — —
• #3457 Ghost Silence: Some silences have been manually expired, but they will be recreated strangely — component/silences
• #3515 Whether Alertmanager supports receiving different alerts per their labels — —
• #3519 Alert Rules Labels do not appear in Notification Email when being used in annotations/description prometheus field — —
• #3617 non business hours alert resolved status not acknowledged by alertmanager and not sent to configured receiver — —
• #3669 Heartbeat (Webhook) stuck after opsgenie connection issue — —
• #3677 When the alarm is restored, the unrecovered alarms will be issued together — —
• #3902 AlertManager doesn't send some of alerts to Pagerduty — —
• #4008 Alertmanager sending duplicate notifications after 'resolved' notification when running with multiple replicas — —
• #4152 Alerts duplication in HA mode — —
• #4179 alertmanager messages lost due to high availability mode — component/notify
• #4405 Alertmanager HA cluster rollout leads to huge number of refiring alerts — —
• #4499 an issue with the web page display of alertmanager(0.28.1) in the IPv6 scenario — component/ui
• #4507 Document that smtp_smarthost does not support port 465 — —

Change / Proposal (1)

• #2496 Muting interacts with group_interval in unexpected (?) fashion — component/notify, component/silences

Friction (1)

• #2370 Alertmanager loses in-memory alerts when it restarts — —

Release / Packaging (1)

• #2941 How about getting alertmanager that can run on an ARM8 processor? — —

Uncategorized (165)

• #211 Direct link to alert — —
• #538 pushover should have a global token — component/notify
• #917 Minimum value for repeat_interval — —
• #1202 Improve alert indexing and search — —
• #1307 Regression: Resolving unqualified DNS names fails — component/high availability
• #1513 Link to Routing tree editor from Alertmanager directly — component/ui
• #1517 Create tests to prevent regressions in notifier requests — component/notify
• #1561 Tests don't pass on Windows — —
• #1564 [HA] Show more info about the cluster status in the UI if it is failing — component/high availability
• #1587 Alert grouping in PagerDuty is not very useful — component/notify
• #1755 Receiver called with already notified resolved alerts — —
• #1832 Add internal alert ingest queue — component/storage
• #1881 Source links do not work when on same domain as Alertmanager — component/ui
• #1933 Inconsistent look and feel between prometheus and alertmanager web consoles — component/ui
• #1996 Support for sending notification to kafka — component/notify
• #2048 Alert not send — component/notify
• #2120 Feature suggestion: Add Gotify as receiver — component/notify
• #2142 I can get the attribute 'updateAt from Alartmanager API api/v2/alerts but no this from webhook — —
• #2146 Feature request: graceful configuration reload — component/high availability, component/notify
• #2151 one alert firing,but over two resloved message received — component/high availability, component/notify
• #2158 Silenced alert becomes active after cluster restart with silence still active — component/silences
• #2164 Expired silences are not garbage collected after --data.retention has passed — component/silences
• #2165 Feature request: Slack alert threading — component/notify
• #2221 Actives Alerts | repeat_interval | no subject on email — —
• #2272 V2 API swagger file issue re: Matchers — —
• #2302 [Proposal] Change Config Format — component/config
• #2320 Repeated notifications sooner than repeat_interval — —
• #2337 VictorOps Alerts Incorrectly Merged — —
• #2382 Feature Request: Slack send_resolved with jump to resolved link — component/notify
• #2385 Implement Base64 Decoding in Alert Description Templates — component/templating
• #2395 [feature request] allow matched values from source_match_re in target_match — component/inhibition
• #2404 AlertManager not sending all alerts to Webhook endpoint. — component/notify
• #2474 Repeated resolved alerts after 'repeat_interval' — —
• #2485 Long-term silence is ignored in some rare and unknown circumstances — —
• #2506 No alerts going out when started to use 3 alertmanager — —
• #2510 Resolved notification sent with send_resolved set to false — —
• #2525 Requesting native AWS SNS support — —
• #2526 template.Data does not export GroupKey — component/templating
• #2527 Expose which webhook endpoint is failing in AlertmanagerClusterFailedToSendAlerts — —
• #2532 Alertmanager not logging bad request error when posting to v2 api — —
• #2550 intermittent bogus resolved notifications — —
• #2556 Darkmode — component/ui
• #2565 Feature Request: Sort Alerts based on startsAt time or arbitrary paramater — component/templating
• #2570 Resolved alert not being send if the resolved alert is the first alert received after restart in docker swarm environment — —
• #2589 Update value of alert resolved. — —
• #2601 The alert sending interval is inconsistent with the document description — —
• #2611 Feature request: Adding metadata to incomming alerts — —
• #2625 Struct tags are not longer supporting multiple space separated keys — component/api
• #2629 Feature Req: Trigger alert if any of the match_re(or match) matches. — —
• #2644 Send resolved notification only when all alerts are solved — —
• #2649 dropping messages because too many are queued — —
• #2651 Looking to assign unique ID/key for each alert — —
• #2659 Memory leak when repeating silences — —
• #2675 Alertmanager does not send resolve for a few cases randomly — —
• #2678 Alert manager SNS receiver have option to publish message with json format — component/notify
• #2682 Feature request: ZenDesk support — component/notify
• #2686 Feature: Exclude existing alerts in group notification — —
• #2690 Send "New Silence" notification (trigger or list of fingerprints) — component/notify
• #2704 amtool support multiple alertmanagers — component/cli
• #2717 [feature request] Include silence alarm link in the default email templates — —
• #2735 oauth2 multiple auth requests — —
• #2736 Improvement amtool alert grouping — component/cli
• #2750 Whether alibaba's Dingding notification can be built in, Dingding is more popular in Chinese office apps than wechat — component/notify
• #2754 Toggle ability to - send resolved notifications for inhibited alerts — component/notify
• #2756 Feature Request: Allow CRUD operations via API on AlertManager — component/api, component/config
• #2766 V2 Matchers don't have ability to match — —
• #2775 Clustering: remove failed peers that are not in the configuration — component/high availability
• #2776 amtool: add support for stdin to config routes test — —
• #2781 Prometheus SNS receiver validation — component/notify
• #2832 Update alerts api to display that notifications are muted for certain receivers. — component/api
• #2833 mute_time_intervals should be inherited to sub routes — component/config, component/dispatch
• #2874 Pagerduty Integration (events API V2): Updates same alert instead of creating new one — —
• #2911 Expose Alert data structure in alert fields — —
• #2913 Add a metric with alertmanager_notifications_success_total — —
• #2916 Filter alerts based on query result labels — —
• #2920 Feature Request: Add in functions to convert variable types in templates — component/templating
• #2921 Identify if an firing alert is repeated — —
• #2924 Issue on Alerting WebHook since 0.24.0 alertmanager version — —
• #2957 Feature request - Matcher continue on receiver failure — component/notify
• #2961 Split retention in 2 parts or multiple nflogs — component/nflog
• #2984 Inhibit alerts by groupname matcher — component/inhibition
• #2998 Silence creator and comment is required in the UI but not in the API — component/api
• #3003 Alert grouping test with amtool — —
• #3026 /-/ready reports ready before cluster gossip has settled — component/high availability
• #3048 Feature Request - Temporary Suspension of Alert Resolution for noisy and flapping alert — —
• #3108 Proposal: allow alert manager to read from secret resources — —
• #3185 GCS file as a configuration source — component/config
• #3186 Add dynamic duration variable for the repeat_interval — component/config
• #3212 Rename weekdays to days_of_week in time interval definition — component/config
• #3229 Proposal: support idempotency token for create silence api — component/api
• #3246 Silences post returns a status code of 200 on create or update — component/api
• #3248 Using repetitive blocks for slack_config in alertmanager config file — component/config
• #3267 time_intervals configuration differences in /status — —
• #3274 How about change the route.routes.receiver to list? — —
• #3294 Group Timings Visibility — —
• #3297 Proposal: Paginate through listAlertGroups API — component/api
• #3325 Add Pushsafer Notification Service — component/notify
• #3328 Alert reach Opsgenie with different deduplicating aliases even in the presence of group_by labels — —
• #3329 Feature request: Expiry for resolved alerts in long-running groups — component/notify
• #3339 [feature-request] Use time_intervals in Silences function module — —
• #3341 Alertmanager sending "empty" endsAt to webhook when alert is not resolved. — —
• #3361 Proposal: API spec for paginated version of getAlertGroups and getAlerts — —
• #3385 amtool silence add shows unexpected behaviour interpreting matchers — component/cli
• #3396 Add num firing and resolved alerts to webhook payload — component/notify
• #3407 Reloading the config leads to incorrect notifications being sent due to a race condition — component/notify
• #3410 Alertmanager resends the notifications after reloading the configuration — component/notify
• #3527 --web.page-title flag as Prometheus "Core", it's possibile? — —
• #3598 Validation of successful alert delivery to Opsgenie — component/notify
• #3649 > The alert list looks like a staircase because it is dependent on the name of the receiver — component/ui
• #3699 Sending over-simple DeduplicationId to FIFO type AWS SNS dropped "resolved" message — —
• #3810 docker image does not recognise timezone appropriately — —
• #3919 Feature Request: Matrix Receiver — component/notify
• #3946 Decode plus sign ('+') as a space (' ' or '%20') when decoding silence filters — component/templating
• #4407 Alertmanger change assignee in Jira — component/notify
• #4479 Alertmanager does not read telegram token file until there is an alert to send. — —
• #4503 Aggregation Groups result in too many go routines — —
• #4504 Feature Request: Multiple Source Alerts For Inhibition Rules — component/inhibition
• #4509 Support for CSP hardening mechanisms (e.g., nonce/hash templates, report-only CSP, or optional flag to enable safe CSP by default) — component/ui
• #4567 Deduplication failes for groups with different values for non-grouped labels — —
• #4587 msg="dropping messages because too many are queued" component=cluster current=4105 limit=4096 — —
• #4605 Alertmanager cluster peers have spiky routines — —
• #4624 Custom JQL for Jira tickets — component/notify
• #4726 Review integrations code for consistency — component/notify
• #4727 George's knowledge share for Alertmanager maintainers — component/api, component/config, component/dispatch
• #4759 Support for providing token_url as a file in http_config.oauth2 — component/notify
• #4804 Backslash in label value is not properly url-decoded — component/ui
• #4918 Jira Integration reaching Rate Limits of Atlassian Cloud — —
• #4944 Roadmap for v1.0 — —
• #4947 API v3 Design — —
• #4949 Notification Batching — —
• #4951 Eliminate the Global Marker — —
• #4954 Alert Associations — —
• #4956 Dispatcher transition improvements — —
• #4959 Add authorization subsystem for Alertmanager — component/api
• #4961 Support "go tool" for golanci-lint — —
• #4962 Support receiver targeted silences — component/silences
• #4969 Support rootly for notification — component/notify
• #4987 Show how many alerts a silence has suppressed over time — —
• #4988 Feature request: Add native Rootly notification integration — component/notify
• #4989 Alertmanager exposes errors one by one — —
• #4990 Notifiers only return a single error rather than all error. — —
• #4991 Multiple receivers hide other errors in configuration — —
• #4992 Split validation logic into a separate function for each notifier — component/config
• #4993 Create dedicated types for properties of configuration that have been checked — component/config
• #4994 Alertmanager does not load everything needed for notifiers on startup — component/config
• #5002 Add Global Receiver template support? — —
• #5003 Add SIGNL4 Receiver for mobile alerting — component/notify
• #5012 notify.DeepCopyWithTemplate edge cases — —
• #5087 Alertmanager stops responding to HTTP requests under load — —
• #5103 weboperations: make /-/reload handler cancellation-safe — —
• #5112 clustering: peer TLS certificates are validated against their IP address instead of their hostname — —
• #5134 Optional abandon of long-undelivered notifications to protect receivers after outages — component/notify
• #5151 [Feat/bug] TLS config, allow to define x509.VerifyOptions.KeyUsages — —
• #5162 inhibitions unable to handle regex — component/config, component/inhibition
• #5164 Panic error on config parsing when update_message: true in slack_configs — —
• #5167 Add batch routing test file support with inhibition assertions to amtool config routes test — —
• #5197 Feature request: native config auto-reload support, similar to Prometheus auto-reload-config — component/config
• #5198 Feature Request: Preserve EndsAt timestamp in Webhook payloads instead of resetting to zero value — —
• #5230 Jira Integration should not require Labels to be submitted — component/notify
• #5247 Improve Alertmanager Semantics for Partially Muted Alert Groups — component/notify
• #5261 Overview Dashboard — —
• #5322 Rendering notification templates should not silently swallow errors — component/notify, component/templating
• #5396 Add receiver/integration (and where available, channel) as structured log fields on notification failures — —
• #5403 Alertmanager config improvements for multitenancy and testability/mantainability — —
• #5404 Api silences add parameter like alerts — —

Appendix: Label Distribution

Label	Count
stale	113
kind/enhancement	102
component/notify	67
help wanted	35
component/ui	30
kind/support	25
component/config	18
component/silences	17
component/api	14
component/templating	13
kind/more-info-needed	13
component/high availability	12
kind/documentation	11
keepalive	10
kind/question	9
kind/bug	8
component/inhibition	4
component/cli	3
component/storage	3
discuss-in-meeting	3
component/dispatch	2
component/nflog	2
kind/cleanup	2
kind/friction	2
waiting-for-user-input	2
hacktoberfest	1
kind/change	1
kind/release	1

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Methodology & Caveats

• Data pulled live from the GitHub REST API (state=open); pull requests are excluded.
• Categories are assigned from kind/* labels; issues with no kind/* label are counted as Uncategorized.
• Stale = no update in >365 days.
• Blocked = tagged kind/more-info-needed or waiting-for-user-input.
• Duplicate clusters and the Likely Fixed / Potentially Invalid triage findings are produced by manual/LLM review and are not regenerated by this automated job.