Release Release v2.56.0-pre1 · grpc/grpc-dotnet

What's Changed

Update 2.55 branch to 2.55-pre1 by @apolcyn in #2174
Revert "update 2.55 branch to 2.55-pre1" by @apolcyn in #2175
Update version to 2.55.0-dev (on master branch) by @jtattermusch in #2177
update readme by @Varorbc in #2183
Start 2.56.x development cycle (on master branch) by @jtattermusch in #2185
Improve grpc-dotnet debugging by @JamesNK in #2192
Even better gRPC debugging by @JamesNK in #2193
Bump word-wrap from 1.2.3 to 1.2.4 in /testassets/InteropTestsGrpcWebWebsite/Tests by @dependabot in #2199
Bump word-wrap from 1.2.3 to 1.2.4 in /examples/Spar/Server/ClientApp by @dependabot in #2198
Bump tough-cookie from 4.0.0 to 4.1.3 in /testassets/InteropTestsGrpcWebWebsite/Tests by @dependabot in #2187
Bump semver from 6.3.0 to 6.3.1 in /testassets/InteropTestsGrpcWebWebsite/Tests by @dependabot in #2189
Remove System.Memory dependency on .NET Standard 2.1 in Grpc.Core.Api. by @teo-tsirpanis in #2186
Socket transport: Don't close socket on available data by @JamesNK in #2179
Update SocketConnectivitySubchannelTransport.cs by @JamesNK in #2202
Improve gRPC channel and client debugging by @JamesNK in #2196
Fix gRPC client retry deadlock by @JamesNK in #2209
Support idle connection timeout with pending sockets by @JamesNK in #2213
Correctly check socket on stream creation by @JamesNK in #2215
Add net462 build to Grpc.Net.Client with WinHttpHandler default by @stephentoub in #2220
Update version to v2.56.0-pre1 (on v2.56.x branch) by @jtattermusch in #2224

Full Changelog: v2.55.0...v2.56.0-pre1