The new version of Modeller, 9.11, is now available for download! Please see the download page at http://salilab.org/modeller/ for more information.

If you have a license key for Modeller 8 or 9, there is no need to reregister for Modeller 9.11 - the same license key will work. (It won't do any harm to reregister if you want to, though!)

9.11 is primarily a bugfix release relative to the last public release (9.10). Major user-visible changes include:

# Alpha (Tru64), Itanium (ia64) and Sun Solaris binaries are no longer provided. If you wish to use Modeller on one of these machines, please use the older 9.10 version.

# sequence_db objects now only store part of the sequence database in memory when using a binary (HDF5) file (databases in PIR or FASTA format still must be read in in their entirety). Functions that use sequence databases now take a window_size argument, that controls how much of the database is read into memory at one time. This results in much lower memory usage when using large databases such as UniProt.

# SSBOND and CONECT records are now written to PDB files when models containing disulfides are saved.

# The default behavior of automatically converting common modified residues (MSE, MEX, ABU) to their standard equivalents can now be disabled by setting env.io.convert_modres=False.

See the Modeller manual for a full change log: http://salilab.org/modeller/9.11/manual/node39.html

If you encounter bugs in Modeller 9.11, please see http://salilab.org/modeller/9.11/manual/node10.html for information on how to report them.

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Ben Webb, Modeller Caretaker