Last night I had a hell of a time getting home from 23rd Street at 9PM because there was a police investigation at Jay Street/Metro Tech (the new name of Jay Street/Borough Hall).
The F-train I was on turned into an A, which then skipped Jay Street for Hoyt-Schermerhorn. I ended up taking the G train to Seventh Avenue. The entire trip took more than an hour.
You can also go to the MTA website for their list of service advisories.
Those aren’t the full list of service changes and you missed a colon in the URL.