------------------- * Blacken code and get rid of future_annotations dependency;
0.4.18
------------------- * Allow `--apply-offset-seconds` when only subtitles specified; * Make golden section search over scale factors option (`--gss`) available from help; * Use -inf as objective for invalid offsets;
0.4.17
------------------- * Don't remove log file if --log-dir-path explicitly requested; * Add --suppress-output-if-offset-less-than arg to suppress output for small syncs;
0.4.16
------------------- * Fix a couple of validation bugs that prevented certain uncommon command line options from use;
0.4.15
------------------- * Make typing_extensions a requirement
0.4.14
------------------- * Hotfix for pysubs2 on Python 3.6;