We will be performing maintenance on webhooks infrastructure for 1.5 hours. During this maintenance window, webhooks will be in read-only mode. We will continue sending existing webhooks, however, updates or new webhooks configuration will be disabled. This also affects new connect add-on installations, which will not have webhooks installed, and newly configured pipelines, which will not automatically trigger using webhooks. As a workaround, pipelines may be triggered manually by following instructions at
https://confluence.atlassian.com/bitbucket/run-pipelines-manually-861242583.html.