The Prime Minister's official spokesman said there had been a "long-standing intention" to publish a dossier detailing progress of pledges made by the coalition Government, which will acknowledge that some targets have been missed.
He told reporters at a daily briefing that it has been necessary to ensure it was fully accurate before releasing it.
I don't think it's news that the Government considers presentational aspects of its announcements.
One of the very important ones, of course, being that when we publish things they are absolutely right.
It had now been "copper bottomed" with all Whitehall departments concerned, he said, and would be published later today.
Touted as a 'full, frank and unvarnished' assessment of the Coalition's progress, today's mid-term review has been dismissed by Labour.
The Coalition has published a 119-page report showing the progress made on the 399 pledges taken together in 2010. Not an easy read.