If an H-1B, H-2A, or H-2B petitioner submits evidence establishing that the primary reason for failing to timely file an extension of stay or change of status request was due to the government shutdown, USCIS will consider the government shutdown as an extraordinary circumstance and excuse the late filing, if the petitioner meets all other applicable requirements.
My status: on H1, visa expiring in September 2007. Rajiv's team applied for my H1 extension and I had I797 approvals till 2010. I had an H4 extension approval done for my wife as well. There is no employer change from first 3 years on H1 to second approval.