• Add Kafka protocol

• Optimize Dns Cache's searching speed and memory size

• Optimize route manager and dns resolver

• Increase server task's performance by reducing some atomic operations

• Increase global performance by removing some singletons

• Always use dns resolver as name service policy when redirecting

• Add WFServer::get_listen_addr() for server started on a random port

• Add server task's push() interface

• Optimize poller speed and memory occupying

• Optimize URI parser, more than 50% faster

• Optimize http implementation

• Refactor encode stream. This will improve the performance of Redis and Kafka clients

• Optimize SSL write. Improve the performance of HTTPS client and server a lot

• Optimize weighted-random upstream policy to solve some recovering problem

• Update Cmake files to support more platforms. Build both static and dynamic libs

• Optimize upstream with consistent hash. Allow adding server with weight

• Improve http protocol compatibility of http client task

• Improve bazel building

• Fix service governance's ref count bug

• Fix mysql sequence id bug when retrying big request

• Fix VNSWRR upstream bug

• Fix dns client bug when host name has trailing dot

• Fix URL parser fatal bug

• Fix crash when resolv.conf is empty

• Fix MySQL transaction checking

• Fix MySQL client crash on incomplete result sets

• Fix SSL wrapper problem on TLS 1.3 handshaking

• Make UpstreamManager::upstream_delete() safe when the upstream is still in use

• Fix the SSL delaying problem on Nagle's algorithm

• Fix bug that cannot use the port in URL when using upstream

Windows branch recent update:

1. Add ref for EndpointAddress and add nvswrr upstream policy;
2. Optimize URIParser;
3. Update http_parser;
4. Add WFResourcePool;
5. Revert last modification about "bytes_transferred == 0";
6. Add WFServerBase::get_listen_addr;
7. Migrate asynchronous DNS resolving;
8. Fix sevice gorvernance;

Windows branch recent update:

1. add WFMailboxTask and WFConditional;
2. fix SSLWrapper feedback;update ServiceSSLWrapper;
3. fix crash on Windows branch for use session after deleted;
4. fix Redis double SELECTs problem;
5. skip query check when parsing URI;
6. optimize CommSchedGroup target selection;
7. add a new timer factory function to support long timer;
8. update cmake build directory;