Happy April 2nd! Here's what the updates were:
Self-Defense (Mystery Update A)
By popular request, you can now use weapons against Render! There is a preference to toggle this on or off.
Tag Mode (Mystery Update B)
This is a new mode that can be enabled under the preferences menu. In tag mode, it is safe to look at Render at any time. Don't let him catch you, though...
The preferences will update soon to show the proper names of these features.