v4.2.0

Released: 2020-06-02

What's Changed

• Fix outer_html notation by @julianrubisch in #45
• after-outer-html emitted from new element by @leastbad in #46
• Print out the selector for easier debugging perform errors by @excid3 in #36
• add set_property method to library by @leastbad in #34

Full Changelog: v4.1.2...v4.2.0