This is a list of changes to hdecay.f since April 1997: March 10 2001: - Typos corrected in lines 1363-1364,1375-1377,1387-1389, 2268-2270,2280-2282,2292-2294. The typos affect the branching ratios for h,H -> gg in the MSSM, but are numerically small for conventional MSSM scenarios (thanks to Tao Han). December 12 2000: - Typos corrected in lines 1345,1509,2248 and 2468. The numerical effect is small (thanks to S. Heinemeyer). August 23 2000: - Typos corrected in lines 536 and 1284, which do not cause any changes of the numerical results (thanks to F. von der Pahlen and G. Polesello) - If cases added to subroutine SFERMION, which do not cause any changes of the numerical results. June 22 2000: - Addition of lines 2254-2258, the omission of which caused problems for HIGGS=2 and OFF-SUSY=1 (thanks to A. Freitas) December 20 1999 : - Typos corrected in first generation squark-loops of h,H -> gg, gamma gamma (thanks to M. Muehlleitner) - Typos corrected in pseudoscalar Higgs decays into squarks (thanks to J.-B. de Vivie) December 1 1998 : - Typos corrected in off-shell decays H+ -> W*h, W*A in lines 2000,2001,2010,2018,2020,2051 (thanks to Abdeslam Arhrib). - Evaluation of top quark decay width (GAMT1) shifted into subroutine HDEC. October 30 1998 : - Typos corrected in QCD corrections to charged Higgs decays into quarks in lines 882,883,886,887 (thanks to Hong-Jian He) August 20 1998 : - Typo corrected in WRITE statement in line 418 June 18 1998 : - Modifications in subroutine HDEC for the SUSY decays in order to allow for loops switching on and off the SUSY decays (thanks to E. Richter-Was) May 16 1998 : - Bug in paper of Carena et al. fixed. Subroutine SUSYCP corrected for Higgs pole masses (bottom quark loops for large tan(beta)). April 22 1998 : - Removing an instability in H -> Z*A for large tan(beta) at large Higgs masses M_H (thanks to W. Kilian). April 15 1998 : - Change of variable names in line 634: BHQSLQDL,BHQSLQDR -> BHLSQDL,BHLSQDR (Sorry!) January 13 1998 : - Change of variable names in line 634: BHQSLDL,BHQSLDR -> BHQSLQDL,BHQSLQDR August 29 1997 : - Interchange of Fortran lines in subroutines HDECAY and RUNM (thanks to T. Schoerner) July 21 1997 : - Interpolation in H -> hh, AA modified in subroutine HDEC (thanks to T. Schoerner) - Sfermion mixing angles modified in subroutines SFERMION and SUSYCP (thanks to F. Borzumati)