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No, the last major change was a while back when the freebie 6 MB Y! email accounts went to 250 MB & paid accounts jumped to (I think) 2 GB.
Later, others such as hotmail and iwon and myway semi-sorta followed suit, with the former jumping to 250 MB and the others to 125 MB.
All changes seemed designed to blunt any reason to rush out in search of a 1 GB Gmail invite.