On 22.12 there was an important security update patching vulnerabilities. For this reason we cannot roll back the update. Unfortunately, a bug was discovered in the new version that causes unstable operation of one of the server services, resulting in temporary and random unavailability. The problem is global, affecting major parts of the internet.
This is directly related to your websites, there may be some short term unavailability outages.
We have implemented a temporary workaround that will minimize the problem.
Developers and software providers are working on the fix. An update should be available within the next few days. Until then, you may see some brief interruptions in page availability.
More about the bug: https://bz.apache.org/bugzilla/show_bug.cgi?id=65769
W on 31.12.2021, the appropriate updates have been uploaded and the problem no longer exists.
Wednesday, December 29, 2021