# Mattermost change history Filter: kind=all. Query: `?kind=notable|all|pages|pricing|trust|legal|incident|incident_edit|incident_deleted|incident_update&history=&page=N`. Company profile: [Mattermost](https://rewindex.com/company/mattermost.md) ## Changes by kind | Kind | Changes | Notable | Latest (UTC) | | --- | --- | --- | --- | | Major incident | 18 | 18 | 2023-09-05 04:12 UTC | ## Timeline | When (UTC) | Kind | Change | Label | Summary | | --- | --- | --- | --- | --- | | 2023-09-05 04:12 UTC | Major incident | [Major incident: Incident with Community](https://rewindex.com/change/if29817f0690e79.md) | outage | Mattermost Community experienced degraded availability in a major incident starting 2023-09-05 04:12 UTC and lasting 3 h 33 min, until resolution at 2023-09-05 07:45 UTC. Mattermost applied a mitigation at 09-05 07:29 UTC; no specific cause was stated. | | 2023-08-21 06:07 UTC | Major incident | [Major incident: Incident with workspace logins](https://rewindex.com/change/i0ef238020ec9f4.md) | outage | Mattermost reported a major incident affecting logins to Cloud Workspaces and Workspaces, starting at 2023-08-21 06:07 UTC and resolved at 2023-08-21 07:27 UTC after 1 h 20 min. A mitigation was applied at 06:54 UTC; no specific cause was stated. | | 2023-07-25 10:37 UTC | Major incident | [Major incident: Incident with Community](https://rewindex.com/change/id48cecf04a6e88.md) | degradation | Mattermost reported degraded availability for Community with major impact, starting at 2023-07-25 10:37 UTC and resolved at 2023-07-25 11:15 UTC; the computed duration was 37 min. A mitigation was applied at 11:10 UTC, but no specific cause was stated. | | 2023-02-01 02:45 UTC | Major incident | [Major incident: Cloudflare API issues are causing Cloud Sign-Ups to fail.](https://rewindex.com/change/ibd538174832f48.md) | outage | Mattermost reported a major outage causing cloud workspace sign-ups to fail due to Cloudflare API issues. It started at 2023-02-01 02:45 UTC and resolved at 2023-02-01 04:46 UTC, lasting 2 h 0 min. Mattermost reported that Cloudflare had implemented a fix and monitored the results before resolution. | | 2022-12-22 15:13 UTC | Major incident | [Major incident: Incident with Mattermost Boards](https://rewindex.com/change/if505539bcf3ca0.md) | outage | Mattermost Boards experienced performance and availability issues affecting Cloud Workspaces and Workspaces, rated major, from 2022-12-22 15:13 UTC to 2022-12-22 17:57 UTC (2 h 44 min). Mattermost applied a mitigation and confirmed resolution; all other services were reported working as expected. | | 2022-12-09 07:53 UTC | Major incident | [Major incident: Incident with Community](https://rewindex.com/change/ibf8272576b8c1d.md) | degradation | Mattermost Community experienced degraded availability with major impact from 2022-12-09 07:53 UTC to 2022-12-09 14:03 UTC, lasting 6 h 9 min. Mattermost applied a mitigation at 12-09 08:15 UTC and later confirmed resolution; no cause was stated. | | 2022-12-08 14:10 UTC | Major incident | [Major incident: Incident with Community](https://rewindex.com/change/i0207b3e3ed511a.md) | degradation | Mattermost reported major degraded performance for Community from 2022-12-08 14:10 UTC to 2022-12-08 15:13 UTC, lasting 1 h 3 min. A mitigation was applied at 14:24 UTC, and the incident was subsequently confirmed resolved; no specific cause was stated. | | 2022-12-07 12:40 UTC | Major incident | [Critical incident: Incident with Community](https://rewindex.com/change/i48154d5f8524d2.md) | degradation | Mattermost reported a critical incident affecting Community availability from 2022-12-07 12:40 UTC to 2022-12-07 13:54 UTC, lasting 1 h 14 min. The vendor applied mitigations and confirmed resolution; no specific cause was stated. | | 2022-12-06 16:00 UTC | Major incident | [Major incident: Community Outage](https://rewindex.com/change/ibbff32a906edd9.md) | outage | Mattermost’s Community component experienced a major outage starting at 2022-12-06 16:00 UTC, lasting 25 min until resolution at 2022-12-06 16:25 UTC. A fix was implemented at 2022-12-06 16:16 UTC; no cause was stated. | | 2022-12-02 20:13 UTC | Major incident | [Major incident: Community Outage](https://rewindex.com/change/ib0332624176488.md) | outage | Mattermost reported a major Community outage starting 2022-12-02 20:13 UTC, affecting some users’ ability to load or send messages. It lasted 1 h 40 min and was resolved at 2022-12-02 21:53 UTC after a fix was implemented; Boards remained disabled for the weekend pending reassessment the following week. | | 2022-10-14 14:17 UTC | Major incident | [Major incident: Partial outage affecting a small number of workspaces](https://rewindex.com/change/iead8fd9d7b976e.md) | outage | Mattermost reported a major partial outage causing degraded availability for a small number of workspaces, with Cloud Sign-Up, Cloud Workspaces and Sign-Up listed as affected components. It ran from 2022-10-14 14:17 UTC to 2022-10-14 16:03 UTC, lasting 1 h 46 min; a fix was implemented at 10-14 15:46 UTC. | | 2022-09-21 15:08 UTC | Major incident | [Major incident: Partial outage affecting a small number of workspaces](https://rewindex.com/change/i8db5771e83309e.md) | outage | Mattermost reported a major partial outage affecting a small number of Cloud Workspaces, starting at 2022-09-21 15:08 UTC and resolved at 2022-09-21 16:38 UTC, lasting 1 h 29 min. Mattermost said it identified the root cause and mitigated the issue, but did not specify the cause or fix. | | 2022-08-31 13:41 UTC | Major incident | [Major incident: Partial outage affecting a small number of workspaces](https://rewindex.com/change/i45827a31f5193d.md) | outage | Mattermost reported a major partial outage affecting a small number of Cloud Workspaces, starting at 2022-08-31 13:41 UTC and resolved at 2022-08-31 18:53 UTC, with a reported duration of 5 h 11 min. The vendor identified the root cause without detailing it and reported full mitigation before resolution. | | 2022-06-24 06:52 UTC | Major incident | [Major incident: Partial outage affecting a small number of workspaces](https://rewindex.com/change/i995f1c291b8e7d.md) | outage | Mattermost reported a major partial outage affecting a small number of Cloud Workspaces from 2022-06-24 06:52 UTC to 2022-06-24 07:52 UTC, lasting 1 h 0 min. A cluster upgrade operation degraded database connectivity; Mattermost confirmed resolution and all workspaces returning to normal. | | 2022-06-22 04:29 UTC | Major incident | [Major incident: New workspaces delay creation](https://rewindex.com/change/i029715b2f2f61b.md) | degradation | Mattermost reported major delays creating new workspaces affecting Cloud Sign-Up and Sign-Up, starting 2022-06-22 04:29 UTC and resolved at 2022-06-22 05:48 UTC (1 h 18 min). The vendor identified a communication issue with its DNS provider and implemented a fix. | | 2022-01-26 09:05 UTC | Major incident | [Major incident: Collapse threads are not functional in part of Cloud workspaces](https://rewindex.com/change/i918262cf54efbc.md) | outage | Collapsed threads were not functional in some Mattermost Cloud Workspaces during a major-impact incident that started at 2022-01-26 09:05 UTC and was resolved at 2022-01-26 16:04 UTC, lasting 6 h 59 min. Mattermost reported identifying the root cause and working to mitigate affected workspaces, but did not specify the cause or fix. | | 2021-12-07 16:37 UTC | Major incident | [Major incident: Unable to create new workspaces](https://rewindex.com/change/ib98f1d15d9f1e9.md) | outage | Mattermost reported a major outage preventing new workspace creation, affecting Cloud Sign-Up, Cloud Workspaces and Sign-Up, citing a cloud-provider outage in us-east-1. It started at 2021-12-07 16:37 UTC and was resolved at 2021-12-07 22:45 UTC, lasting 6 h 7 min; all systems were reported operational. | | 2021-03-26 09:43 UTC | Major incident | [Major incident: Delay on new cloud workspace signups](https://rewindex.com/change/i19e79978555ef8.md) | degradation | Mattermost reported a major delay in new Cloud workspace sign-ups affecting Cloud Sign-Up and Sign-Up from 2021-03-26 09:43 UTC to 2021-03-26 11:32 UTC, lasting 1 h 49 min. The vendor reported identifying and fixing the issue at 03-26 10:39 UTC, then monitoring before resolution; no cause was stated. | --- Canonical: https://rewindex.com/company/mattermost/changes · Markdown: https://rewindex.com/company/mattermost/changes.md · JSON: https://rewindex.com/api/v1/companies/mattermost/changes · Generated 2026-10-18T02:31:23.489Z