Un-announced maintenance

[exilum]

When I try to login to S1 this morning, I am getting:
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Our server is currently undergoing maintenance. While waiting for our servers to come back online, please look around R2Game's community, or read up on our current promotions and activities! We appreciate your patience and understanding. Thank you.
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I did not see any announcements. Is this real maintenance? Feature or bug fixes? How long will it last?

[exilum]

MX completed later that day. It was for fixing issues, not content.

[MemoryLane]

My apologies, for some reason I thought this thread was for a different game. I had removed my post after another mod pointed it out to me.