master
5.16.4 improve performance
5.5.13 refactor codes, fix minor bugs, add log collection function for report issues.
4.0.0 upgrade to python3
5.6.0 merge connection send/recv threads into one.
v4.6.0 compactiable with python 2.7.
5.8.7 update openai consuming calculation.
release 5.9.10 + update blacklist. + add direct mode + query DNS from local first for unknown domain.