v0.1.6

This is a milestone release for tsshd.
It marks the transition from a basic, experimental implementation to a production-ready engineering version that works reliably across most environments.

Special thanks to @Drag0nFly for extensive testing and feedback (trzsz/trzsz-ssh#167).

Highlights

• Fully supports ProxyJump (major refactor and performance improvements)
• UDP-over-TCP support ( for TCP-only networks where UDP is blocked )
• Significantly improved user experience on connection loss and recovery
• Broad networking improvements with solid IPv4 / IPv6 support
• QUIC and KCP stability improvements, including rekey support
• Improved keep-alive logic and reduced unnecessary UDP traffic
• Better terminal compatibility (screen / tmux fixes, escape sequence filtering)

Networking & Forwarding

• Listen on appropriate IPv4 / IPv6 addresses
• Support multiple and discrete port ranges
• Subsystem support and forwarding access control
• X11 forwarding enhancements (X11UseLocalhost, XAuthLocation)
• Optimized ProxyJump forwarding throughput
• Improved QUIC compatibility and packet scheduling

Stability & UX

• Block I/O while disconnected
• Discard pending input/output during client disconnection
• Improved exit handling and debugging
• Fixed screen redraw issues and minor terminal glitches