You can sign up on the Panasonic website. It may have been when I registered the product, so it came by email. It's a bit confusing as it's titled, "P2 Asset Support System (PASS)" The email did not include any release notes, but maybe there is something on the site that I missed.
Here's what they sent me:
P2 Asset Support System (PASS) Information, February 1, 2012 / Issue 51
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[Update] AG-AC160 series Version 1.11
Stability of process in HE mode has been improved.
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Download
https://eww.pass.panasonic.co.jp/p2ui/ShowContentsDetail.do?screenId=UI_P2U...
Please visit below if you cannot open the above website:
https://eww.pass.panasonic.co.jp/pro-av/support/cs/csregistp2m/ep2main/soft...
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This is distributed to PASS members.
To be removed from the mailing list, please change the subscription status
in your "Customer profile" at the PASS members site:
Log in:
http://panasonic.biz/sav/pass_e
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