• Emit metrics for unannotated Thrift exceptions (#2469)

• Added support for zstd compression using klauspost (#2448)
• Refactor thrift module compilation to allow extension of module/service generators. (#2473)
• Fix linter to provide a better suggestion when license headers are missing. (#2472)
• add go report card (#2468)

• Replace fmt.Sprintf with string concatenation in toFullMethod (#2445)
• Remove redundant CanonicalizeHeaderKey call from isReserved (#2442)
• Optional logging when inbound encoding handler's ResponseWriter does not implement ApplicationErrorMetaSetter (#2440)

• Optimize header.Get access for happy path access (#2439)

Added support for header mapping (#2432)

• Added crosszone & region support for gRPC (#2435)
• Added NumStreamWorkers option for gRPC (#2434)
• Added ServerHeaderTableSize transport option to allow configuring the HTTP/2 HPACK dynamic table size for gRPC server inbounds.
  (#2433)

• Emiting metrics if duplicate headers (one with 'rpc-header-' prefix and one without) is found over http (#2430)

Replace hardcoded ExpectEncodings check with dynamic codec registry lookup in getProtoRequest. (#2429)

• update originalHeaders API to send items map (lowercase keys) controlled via inbound option for http transport (#2427)

• added handling for crosszone routing header for http
• rewrote test to be more generic (#2413)
• Fix: incorrect object being returned to sync.Pool in gzip decompressor (#2426)