Limit on Wiki Post size

I'm trying to add the 6.1 release notes to the software change log and getting an error that I've exceeded 50000 characters. Is this a hard limit or can it be increased? If not, we'll have to break up the software change log into separate posts.

Any mods out there able to help? If the limit can't be increased, can three Wiki posts be created for every major version (1.x-4.x, 5.x, and 6.x) and then we can break up the change log into three?

Thanks Doug!