H4 validity dates not mentioned in Approval notice.

[JSu]

My wife and I got our H1/H4 visas extended recently, while staying in US. We've both got our approvals, but the H4 extension approval notice doesn't mention the validity dates on the notice.

It used to be shown in all our previous extension approvals. Is this is a new change ? I couldn't find any official confirmation online suggesting such a change.

I looked up the website where we retrieve I94s, but even there it shows the old I94 expiry date before extension.

Please advise, if this is okay, or if I need to get this 'corrected'.  We're planning a trip to India in Feb 2014 and would like to avoid trouble while going for stamping.

[JSu]

I don't see any reply in a week... Can someone who got H4 approval recently check if they have validity dates mentioned ?