-single best orf now selected by default. If more than the single best orf is wanted, use the --all_good_orfs parameter. -start codon refinement is now done by default. To turn it off and get the original behavior of extending to the longest orf position, use parameter: --no_refine_starts -cdhit has been removed and replaced by our own fast method for removing redundancies. -selection of coding regions is strictly governed by Markov-based likelihood scores across reading frames. No auto-retention of long orfs by default, but can be activated by parameter: --retain_long_orfs_length -rigorously tested and benchmarked for prediction accuracy