IQ-TREE version 1.5.6

Dec 4, 2017

This version improves software stability and contains bugfixes:

• Improved numerical stability when some state is absent from the alignment, especially with codon or morphological data.
• Allow reading morphological and codon model from file in PAML format.
• -mset option works with binary and morphological models.

Bugfixes:

• Bug for multifurcating tree with multithreading (reported by Filipe Romero).
• Crash when number of partitions > 2^15 (reported by Adela RoaVaron).
• In Windows: Exit gracefully instead of abort when input file does not exist.
• Exit gracefully instead of segfault when log file cannot be written.
• Crash when constraint tree contains identical sequence which was removed (reported by Russell Minton).
• Exit gracefully instead of abort about too many threads for too short alignment.
• Exit gracefully instead of abort when outgroup taxon (-o option) does not appear in alignment.

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