ML Metadata v0.27.0

Release 0.27.0

Major Features and Improvements

• Introduce google.protobuf.Struct as an additional Value type for storing
  complex, JSON-objects in MLMD.

Bug Fixes and Other Changes

• MLMD wheel for MacOS is now built with minimum OS version 10.9. This will
  improve compatibility for the older MacOS versions.

Breaking changes

• N/A

Deprecations

• N/A