The 2009 Edition of Pub 559, which advises Personal Representatives and Executors how to prepare the income tax returns of decedents whose estate they are administering, has been published by the IRS. It is to be used for the 2008 year.
The full PDF of the publication can be downloaded from the IRS’s Website here.
Edit — March 24, 2010. The above link now links to the 2010 Edition to be used for the 2009 year. See here for more details.