The latest Updates for your particular site/s server or databases can be found here. Any current issues which are affecting all servers or databases will be noted below. Any current issues which are affecting a particular server or database will be noted here as well as it's own section.
Some servers may have unresolved issues, to find whether any are applying to your site/s server please use the site's search function, and use the keyword "unresolved".
There are some definitive configuration differences between some servers eg: words being filtered on 1 server aren't filtered on another... things like these I will report as unresolved.