v1.7.2

1. Improve some codes
2. Fix bug for IPv6

v1.7.1

update vendor
update README.md
update options

v1.6.1

1. update TLS1.3 as default
2. remove some check in startup

v1.6.0

Support domain file auto update

v1.5.1

Fix issue

v1.5.0

Fix some issue

v1.4.1

update cache for auto mode