@grpc/grpc-js Beta 0.4.2

• Fix a bug that was generating MaxListenersExceededWarning when making many calls (#887)
• Fix a bug that was throwing errors when making multiple requests using the same custom Metadata instance (#900)
• Fix a bug that could discard some incoming messages in a stream (#901)

Node gRPC v1.21.0

• Remove unused ChannelCredential type definitions (#854 contributed by @eoogbe)

C core release notes

@grpc/proto-loader 0.5.1

• Accept arrays of filenames in load and loadSync (#806 contributed by @jroper)

@grpc/grpc-js Beta 0.4.0

• Restrict compatible node versions to ^8.13 || >=10.10 (#843 contributed by @cjihrig)
• Export some previously missing types (#850 and #853 contributed by @alexander-fenster, #787)
• Add some implementation code for upcoming Server feature (#809 and #817 contributed by @cjihrig)

Node gRPC v1.20.3

• Add support for Electron 5 (#848)
• Improve error output in some cases when failing to load the native addon (#849)

Node gRPC v1.20.2

• Add support for Node 12

C core changes:

• Fix possible blue screen on Windows when using "localhost" target addresses (grpc/grpc#18834).

Node gRPC v1.20.0

• Fix spurious error thrown in generic Client constructor (#799).
• Add support for Electron 3.1 and 4.1, remove broken support for Electron 4.0 (#781)

C core changes:

• Fix race condition in HTTP/2 code (grpc/grpc#18481)
• Fix memory bloat in HTTP/2 code (grpc/grpc#18163)
• Transition channel into state CONNECTING when we start name resolution (grpc/grpc#18141)

@grpc/proto-loader 0.5.0

• Use Array.isArray instead of instanceof for consistent checking (#795 contributed by @raunaqrox)
• Provide well-known google/protobuf proto files not provided by Protobuf.js (#811 contributed by @cjihrig)

grpc-tools 1.7.2

• Fix install script (#747 contributed by @sangaman)
• Fix node-pre-gyp dependency (#774 contributed by @ilari-makimattila)

@grpc/grpc-js Beta 0.3.6

• Use getRequestHeaders if available when handling credentials objects for compatibility with newer versions of google-auth-library (#723)
• Fix internal ordering error that could occasionally cause unexpected errors when cancelling streams with incoming messages (#766)
• Fix a warning that could be omitted when making many requests on a single client that never establishes a connection (#768)