The latest client patch notes can be found here.
Visit our Bug Report forum for a list of known issues.
Hotfixes made in addition to changes in patch 1.0.2b can be found here.
If you are experiencing technical issues with the patching process, connecting to Battle.net after installing the patch, or errors while playing a newly-patched game, please visit our support site or Technical Support forum for assistance.
Update 10:50 a.m. PDT: We are extending maintenance by approximately 1 hour. We currently anticipate that all Diablo III game servers and services will available by 12:00 p.m. PDT.
We will be performing scheduled maintenance on Diablo III starting tomorrow (6/6) at 5:00 a.m. PDT in order to deploy patch 1.0.2b. We anticipate that maintenance will conclude and that all services will be available at approximately 11:00 a.m. PDT. Patch notes are available below.
Important: Please note that you will not be prompted to download patch 1.0.2b until the patch is live in your home region. If you are logging in from a European or Asian client, you will need to wait for this patch to release in that region before it can be installed. Additionally, if your home region is the Americas, you will be unable to log into Europe or Asia using Global Play after patch 1.0.2b is live until those regions have also patched.
For reference, here are the scheduled maintenance times for each region:
The Americas: 5:00 a.m. PDT to 11:00 a.m. PDT
Asia: 8:00 p.m. PDT to 2:00 a.m. PDT
Europe: 1:00 p.m. PDT to 7:00 p.m. PDT
Please note that these times are subject to change. For time zone assistance, please visit: http://everytimezone.com