IQ-TREE version 1.6.6

Jul 1, 2018

This version contains a number of bugfixes and is highly recommended for all users.

Bugfixes:

Issue with internal tree node names changed from slash to underscore (reported by JP Flandrois).
Wrong FREQ_UNKNOWN assertion with protein mixture models, e.g. LG4X (reported by Giddy Landan).
Disallow specifying both --runs with -lmap option (reported by Giap Nguyen).
Reading nexus polymorphic characters for non-DNA data (reported by a web user).
Amino-acid O (22nd amino-acid) is accepted as missing data (reported by Cuong Dang).
Negative initial free-rates in rare cases (reported by Paul Frandsen).
Memory leak in reading NEXUS alignment.
Crash with resampling strategy (-bsam) for standard bootstrap (-b) and jackknife (-j option).
Crash with standard bootstrap and partition merging (-m ...MERGE) (reported by Guoqing Li).
Wrong error with codon models and -t RANDOM (reported by Karen Meusemann).
Parsing error with blank chars in partition file (reported by David Maddison).
Freezing caused by old Intel OpenMP library (reported by David Maddison).
Too strict assertion about one applied NNI (reported by Karen Meusemann).
Error message when specifying mixture with GHOST model (reported by Anja Spang).