The announcement confirms the removal of the Buddhist Lent public holiday, having been replaced, beginning in 2007 (B.E. 2550), by the holiday that always occurs a day before, Asarnha Bucha (2006-11-16).
The Royal Ploughing Ceremony public holiday, as usual (2009-04-26), will only be announced a couple of weeks before the actual event.
Links and References
Below are links to the news stories referred to in the above "Thailand 2011 Public Holidays Announced" news story, as well as links to subsequents news stories which refer to the present news story.