9.21.0

Release Notes

Library - Chore

• PR #1036: simplify framework dependencies. Thanks to @childish-sambino!
• PR #1032: update GitHub branch references to use HEAD. Thanks to @thinkingserious!

Library - Feature

• PR #789: Add dockerized email inbound webhook consumer example. Thanks to @KoditkarVedant!

Library - Docs

• PR #757: Run *.md documents through Grammer.ly. Thanks to @danimart1991!