# Ably 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: [Ably](https://rewindex.com/company/ably.md) ## Changes by kind | Kind | Changes | Notable | Latest (UTC) | | --- | --- | --- | --- | | Major incident | 13 | 13 | 2026-10-01 15:36 UTC | ## Timeline | When (UTC) | Kind | Change | Label | Summary | | --- | --- | --- | --- | --- | | 2026-10-01 15:36 UTC | Major incident | [Major incident: Elevated API Errors](https://rewindex.com/change/ib78eaacf25bae6.md) | security | Ably reported a major DDoS incident causing token-request errors across all Ably Realtime regions (503 responses) and intermittent ably.com unavailability. Recorded start: 2026-10-01 15:36 UTC; duration: 26 min, with token errors lasting approximately six minutes. Ably restored token-request service by increasing capacity and added targeted traffic-blocking and rate-limiting rules. | | 2026-09-07 11:25 UTC | Major incident | [Major incident: Ably documentation pages - ably.com/docs](https://rewindex.com/change/i9711157a4c6882.md) | outage | Ably reported a major outage affecting access to documentation at ably.com/docs from 2026-09-07 11:25 UTC to 2026-09-07 11:32 UTC, lasting 7 min. Realtime services were unaffected; a fix was implemented at 11:28 UTC, and the incident was resolved. | | 2026-08-20 19:07 UTC | Major incident | [Major incident: Elevated Error Rate in ap-southeast-1](https://rewindex.com/change/i9f47ba8d583e4c.md) | outage | Ably reported a major incident with elevated errors in ap-southeast-1, affecting Ably Pub/Sub - Asia-Pacific (Singapore) and Asia-Pacific (Singapore). It started at 2026-08-20 19:07 UTC and was resolved at 2026-08-20 19:10 UTC; the computed duration was 2 min. No cause or fix was stated. | | 2026-02-14 05:57 UTC | Major incident | [Major incident: Elevated Attach Error Rate in eu-west-1](https://rewindex.com/change/i3e66dbf947e231.md) | outage | Ably reported a major incident involving elevated attachment errors in eu-west-1, affecting Ably Pub/Sub - Europe (Ireland) and Europe (Ireland). It started at 2026-02-14 05:57 UTC and lasted 8 min, resolving at 2026-02-14 06:05 UTC; Ably implemented a fix but did not state a cause. | | 2025-12-05 08:59 UTC | Major incident | [Critical incident: Ably website, customer dashboard & Control API issues](https://rewindex.com/change/ifa1536f2b4f42a.md) | outage | Ably reported a critical incident affecting connectivity to ably.com, customer dashboards, the Control API (control.ably.net), the Ably blog and CMS; realtime services were unaffected. It started at 2025-12-05 08:59 UTC and was resolved at 2025-12-05 09:18 UTC, lasting 19 min. | | 2025-10-29 08:57 UTC | Major incident | [Major incident: Webhook delivery failures](https://rewindex.com/change/i64e58a0045c801.md) | outage | Ably reported major Reactor Webhook delivery errors from 2025-10-29 08:57 UTC to 2025-10-29 09:42 UTC (computed duration: 44 min), resolved after a fix. The postmortem attributed the incident to a deployment and reported broader impact from 1134 on 28 October to 0936 on 29 October 2025 UTC. | | 2025-10-09 14:10 UTC | Major incident | [Major incident: Ably website, customer dashboard & Control API issues](https://rewindex.com/change/i54e1b8172576e9.md) | outage | Ably reported a major incident affecting connectivity to ably.com, customer dashboards, the Control API (control.ably.net), the Ably blog and documentation; realtime services were unaffected. It started and was marked resolved at 2025-10-09 14:10 UTC, with a computed duration of 0 min; no cause or fix was stated. | | 2025-08-13 12:47 UTC | Major incident | [Major incident: Elevated Realtime errors in EU regions](https://rewindex.com/change/id026f35819ea9c.md) | outage | Ably reported a major incident with elevated Realtime errors affecting Pub/Sub Channels in Europe (Frankfurt) and Europe (Ireland), plus Push Notifications in Europe (Ireland). It started at 2025-08-13 12:47 UTC and was resolved at 2025-08-13 13:25 UTC; the computed duration was 37 min. No cause or specific fix was stated. | | 2024-08-09 13:40 UTC | Major incident | [Major incident: Issue with Ably Queues in eu-west-1](https://rewindex.com/change/i314e1cc5d02ce7.md) | outage | Ably reported a major outage affecting Ably Queues and Ably Reactor Queues in Europe (Ireland), eu-west-1, starting 2024-08-09 13:40 UTC and resolved at 2024-08-09 13:44 UTC (4 min). An unresponsive coordinator node made https://eu-west-1-a-queue.ably.io:15671 unresponsive; Ably said it rectified the issue. | | 2024-07-09 10:23 UTC | Major incident | [Major incident: Planned maintenance for ably.com and control.ably.net](https://rewindex.com/change/i45c50858df47f7.md) | maintenance | Ably reported major-impact planned maintenance that made ably.com and control.ably.net unavailable; the realtime system was unaffected. The recorded start is 2024-07-09 10:23 UTC, but resolution is dated 2024-03-19 08:00 UTC; computed duration is unknown, while Ably’s update states maintenance lasted 30 minutes. | | 2023-10-06 15:31 UTC | Major incident | [Major incident: ably.com website, blog and control API down](https://rewindex.com/change/i2563fce23a9ce1.md) | outage | Ably reported a major outage of ably.com, its blog and control API, with the website returning 500 errors. The incident started and was marked resolved at 2023-10-06 15:31 UTC (recorded duration: 0 min), although updates describe deploying a change at 03:34 PM UTC and services returning at 03:36 PM UTC. | | 2023-09-27 18:09 UTC | Major incident | [Major incident: ably.com and support.ably.com down](https://rewindex.com/change/i998cbb5690894c.md) | outage | Ably reported a major outage affecting ably.com, support.ably.com, customer dashboards, blog and CMS, citing Heroku issues; realtime services were unaffected. The incident started and was marked resolved at 2023-09-27 18:09 UTC, with a recorded duration of 0 min, although the update still described website issues. | | 2023-09-01 15:18 UTC | Major incident | [Major incident: Timeouts and High Latencies Across All Regions](https://rewindex.com/change/iaec8b065109c9f.md) | degradation | Ably reported major timeouts and high latencies across all regions starting 2023-09-01 15:18 UTC. Computed duration was 0 min, although updates report disruption until 15:31 UTC. Initial reporting cited transient load causing resource starvation; the postmortem attributed the incident to a DDoS affecting a significant fraction of connections to primary and fallback endpoints. | --- Canonical: https://rewindex.com/company/ably/changes · Markdown: https://rewindex.com/company/ably/changes.md · JSON: https://rewindex.com/api/v1/companies/ably/changes · Generated 2026-10-18T02:24:36.412Z