Changelog for http2-client-grpc

Unreleased changes

0.6.0.0

Update to http2-client-0.9.0.0

0.5.0.4

Use proto-lens-0.4.0.0, this change is package-list incompatible but requires no code change.

0.5.0.3

Add helpers for new bidirectional and general streams.

0.5.0.2

Add bidirectional and general streams.