I'm happy to be able to announce that OpenType 1.9 has been published.
The biggest change is the introduction of a second version of the COLR table. Support is already enabled in Chrome Canary builds, and I've seen some font developers already building fonts using the new capabilities.
Other significant changes include clarification of a number of details. Notable are clarifications for the 'glyf' table and various aspects of the TrueType instruction language. See the change log for other information.
Thanks to many people that contributed to the design for COLR v1 and to the many who reported issues on the spec or provided comments during the beta review.