Heya,
Today we made a very small change to the logging format of the Nginx servers. We replaced the string "FAKE_CACHE_STATUS" with a dash (-). The reason is to save diskspace and reduce network traffic.
If you analyze Nginx server logs and you use a regular expression that matches FAKE_CACHE_STATUS then you will need to update your regular expression. But I don't expect anybody to be affected by this.
Best,
Diederik