UK GDP numbers are released in theory a total of three times for a given quarter. For Q4 we have
23/01/2009: Advance
25/02/3009: Preliminary
27/03/2009: Final
Q3 final number (23/12/2008) was -0.6% (revised down from -0.5% (P)), and has subsequently been revised down to -0.7%
http://www.forbes.com/feeds/afx/2009/02/25/afx6092695.html
Today's Q4 preliminary number was unchanged at -1.5%

Looking at the bigger picture, things aren't quite as bad as the 90s recession. Yet.