Firstly, thank you for the advance notice, makes a welcome change to logging in and finding an unannounced maint is just about to start.
What "issues" are being addressed?
I'd really like to see the end of the bug that keeps closing tickets before support even read them, it's been nearly 6 years now!
Utter farce getting a response to an already closed ticket, and means you keep having to start a new one to answer/provide more information quoting the original ticket number, then of course that ticket auto-closes too, so your next one now refers to the previous 2 ticket numbers, and so ad infinitum until either it's resolved, or everybody loses track of the original query amidst the mass of prior ticket numbers.