Below is my news post from Hive: http://www.hiveworkshop.com/threads/8mb ... 7b.290447/
MAJOR UPDATE
Despite Blizzard's patch notes not mentioning it, we have unexpected confirmation that the 8mb multiplayer limit for maps has been removed on Battle.net! Various Hive Workshop users have tested out maps over 8mb, including a specialized version Gaias Retalliation ORPG which is around 50mb. Map maker Zwiebelchen succeeded to host and play that map online in Battle.net. Other map makers and testers reported the same.
What does this mean? This means one of the biggest limits of WC3 modding has been taken off. There is so much more map makers and other types of modders can do now! This makes room for more creativity and higher quality content, along with more things to experience and improve in custom games online.
There are also some World Editor changes reported by some users, and you can discuss some of the specifics in this thread or throughout the forum.
UPDATE1: 131 MB seems to be the new limit!
The older, announcement news for this patch is below.
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https://us.battle.net/forums/en/bnet/topic/20752496109
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Battle.net players could be experiencing some downtime today.
[USER=1]@Ralle[/USER] and I are betting it's just a compatibility patch that continues off of 1.27a. This should not be the 'big patch' we are expecting with our talks with Blizzard. However, with any patch, we'll keep everyone updated with details on this thread if anything notable happens!
UPDATE1: Patch notes. So far, unspecified bug fixes and maintenance.
https://us.battle.net/forums/en/bnet/topic/20752625996
UPDATE2: There are reports that the Northrend (Europe) realm is down or bugged at the moment. Azeroth (US East) seems to work, though.
https://us.battle.net/forums/en/bnet/topic/20752465862?page=1
UPDATE3: The Battle.net realms appear to be working now. Reported quick fix: Patch on a different server than Northrend, then Northrend should be able to work.
UPDATE4: Northrend is undergoing official maintenance / downtime.
UPDATE5: Maintenance appears to be over.