5.16.6 fix minor bugs #14127

5.16.5 update version.

5.10.7 release

release 5.9.10

+ update blacklist.
+ add direct mode
+ query DNS from local first for unknown domain.

release 5.9.9 fix bug running in windows introduced from 5.9.7.

5.9.0 upgrade gae server to python3 env.

5.8.6 fix seley ip_manager bug.

5.8.5 add debug log.

5.8.4 fix 5.8.3 bug.

5.8.3 fix http1 bug.