We've updated all active errata filters for the Windows Hardware Certification Kit (HCK). All active errata that weren't fixed in the test kit are now extended until 12/31/2014. We'll reevaluate all active errata again about 3 months before the new expiration dates. We'll either retire errata or extend the expiration date again, depending on whether fixes are in place for the test issues.
A few errata are set to expire between now and 12/31/2013 by design for delayed enforcement reasons or because fixes were implemented into the next HCK release. Those errata won't be extended again.
You can check the status of all errata any time on the Windows Dev Center hardware dashboard. To narrow down the list, use the filters to view only active, expired, or expiring within 30 days. You can also search by ID and title.