Bump version to 8.9.4

Bump version to 8.9.1

Bump version to 8.9.0

Sync: automatically update whitelist/blacklist after first full sync …

…and prevent users from performing full sync too often (close #1727)

Improve workflow

Bump version to 8.8.7

Bump version to 8.8.6

Bump version to 8.8.5

Bump version to 8.8.4

Bump version to 8.8.3