It's always been there.
(You can only view the last 50 messages, though.)
It's also a pleasure to see copies of messages sent before 23/11 that I thought had been lost!
Does messaging system fail when the receiver has 50 messages in their inbox?
The older ones just disappear.
I was trying to work out why my attempts to reply to you and then send you a direct message all failed last night. This has happened to me before but I've not heard anyone else mention it.
It would be nice to be able to attach files or JS to our personal message systems here ^_^ Not needed but it would be convenient!