D..5 March, 2007 (AE Version 3.128)

• A new experimental tool for constructing background spectra for crowded sources has been briefly described in §7.14. As of April 2007 development of this tool is on-going. Revisions are not announced or routinely released.

• Additional discussion of AE's source significance statistics has been added to §5.10.3; some misinformation previously stated there has been removed. The calculation of the PROB_NO_SOURCE statistic has been revised to follow Weisskopf et al. (6, &)167;A2#.

• AE now requires the AstroLib version dated 12 February, 2007 or later in order to get the correct version of forprint.pro. You should remove the forprint.pro file previously distributed with AE.