v2.1.0

• feat: async response
• feat: async subscribe
• feat: support co_await for c++20 coroutine
• feat: update cpp version to c++14
• feat: support varint for msg len
• perf: remove virtual interface
• refactor: refine code

v2.0.3

• serialize support nlohmann-json
• support custom serialize
• support msvc compiler
• refine c++ and rust code
• ci for windows and macos

v2.0.2

• support rust
• refine code

v2.0.1

• fix request lifecycle
• cleanup warning
• add no_such_cmd response
• refine code avoid memory copy
• refine serialize code and support binary wrap

v2.0.0

1. new serialization
2. refine some api
3. add stream_connection
4. format code

v1.0.3

1. add future api

2. refine code