Tuesday January 26, 2021

Issue summary:
Starting on January 21, 2021 around 11:19 a.m PST, we began rolling out a configuration change for the Events API.

On January 26, 2021 around 6:02 p.m. PST, we completed the rollout. We then learned a small number of customers stopped receiving `user_change` events.

We rolled back the change around 9:52 p.m. PST, which allowed affected customers to receive new 'user_change' events.

1:28 PM PST

We've rolled out a fix and customers should no longer be noticing issues with Slack.

Thank you for your patience while we sorted this out. We'll be following up with an issue summary within the next 24 hours.

11:14 PM PST

Some customers may be experiencing silent failures for 'user_change' events. We're very sorry for the trouble. We are investigating the issue, and we'll be back with an update as soon as we have more information.

9:49 PM PST

Issue summary:
On January 26, 2021 from 9:32 A.M. to 10:34 A.M. PST, some users were unable to use search within Slack, particularly the 'in:#channel' search modifier. This was due to a code change made earlier in the day.

We reverted this change, restoring normal search functionality to all users.

5:29 PM PST

Issue summary:
On January 26, 2021 from around 8:29 a.m. to 9:38 a.m. PST, some users encountered trouble in Slack, such as seeing a banner prompt to "Load new messages" in order to receive new messages.

We carried out an investigation and confirmed Slack was operating as expected. The problem seemed to be isolated to an internet service issue that affected users on the East Coast, so we moved to monitoring the situation.

12:48 PM PST

We believe the internet service trouble is resolved, so affected users should be able to use Slack once again. If you continue to encounter any trouble, please let us know at feedback@slack.com.

11:21 AM PST

We're aware of and monitoring an internet service issue that could impact East Coast users' internet connection and ability to use Slack. This trouble seems to be isolated to the East Coast of the United States.

10:33 AM PST