No server log put out or anything.

This always happens, you change stuff and never inform about it.

What's up with this running competition, i did one and nothing appeared in my quest log.

Also looking for an official announcement, noticed some map changes too

Good that you guys bring this up. I think staff should focus on information and answer people, thats key to sucess on Games to hear player voices. I know it holiday times but if a change are made people should get the information. Also you guys have change many item stats, that should really be asked what players think, maybe use the poll system? Because people spending alot of cash to buy it and then next day it can be useless.

What items did they change?

Hope they just forgot to publish the update logs :)

as for now, I'm not aware of any stats changes, just map changes and a new running contest.

nvm. it's out there now!
Server Save changelog