v2.4.0

• Fix the build error on illumos and Solaris (#43)
• Bump MSRV to 1.47 (#40)
• Optimize Poller internal representation (#40)

v2.3.0

• Implement AsRawFd for Poller on most Unix systems (#39)
• Implement AsRawHandle for Poller on Windows (#39)
• Implement I/O safety traits on Rust 1.63+ (#39)