v0.1.26

Release v0.1.26

This release brings major new capabilities to SSH multiplexing and UDP session management, alongside extensive compatibility improvements, new configuration options, and a wide array of bug fixes.

🎉 Major Features

• Multiplexing & ControlMaster Support:
  • Added -M flag to enable multiplexing master mode.
  • Added -O <ctl_cmd> flag to control the multiplexing master process (#260).
  • Added -S (ControlPath) support, enabling tssh to be used as the underlying SSH client for tools like Mosh.
  • Migrated to native ssh.NewControlClientConn from upstream golang.org/x/crypto for safer, native OpenSSH ControlMaster proxying.
• UDP Session Attach & Detach: Support for detaching from active UDP sessions and attaching to existing UDP sessions across different devices.
• Host Key Verification & Management:
  • Added support for VerifyHostKeyDNS for SSHFP-based host key verification (#261).
  • Added --remove-host-key option to easily clean up stale entries in known_hosts (#267).
  • Added support for the HashKnownHosts SSH configuration.
• Host Canonicalization: Implemented support for canonical host lookups, CanonicalizeHostname, and corrected CanonicalizeMaxDots behavior (#248, #251).
• Protocol Overrides: Added --tcp and --quic options to easily override UdpMode (#263).

✨ Enhancements

• Connection & Stability:
  • Updated tsshd dependency with significant reconnect and diagnostics improvements.
  • Added configurable UdpReconnectExitKey (e.g., Ctrl+D) to manually exit during UDP connection loss (#244).
  • Increased default UdpAliveTimeout to 10 days and improved time formatting.
  • Optimized UDP preview fetching, rendering, and terminal redraws.
  • Enhanced forwarding shutdown and attach error handling.
• Configuration & DNS:
  • Added CustomDnsServer configuration in tssh.conf (can be overridden by --dns).
  • Support loading both XDG and legacy SSH config files.
  • Added fuzzy host selection configuration and cancel exit code (#269).
• UI & UX:
  • Displays connection RTT directly in the terminal title.
  • Hides the host in the "tiny" theme when empty or when it equals the alias (#252).
  • Added -n (NoStdin) flag support.
• Compatibility:
  • Support for KexAlgorithms and unified SSH algorithm handling (#240).
  • Support for ProxyCommand in UDP mode (automatically implies TCP proxy mode) (#262).
  • Added support for more remote OS and architecture variants (#242, #243).
  • Aligned agent key matching and proxy config closer to OpenSSH specs (#247).

🐛 Bug Fixes

• Network: honored AddressFamily settings for ambiguous connections (#256).
• File Paths: Resolved issues parsing the home directory (~/) for identity files (#259).
• Terminal Issues:
  • Skipped Windows virtual terminal setup when stdout is piped (#264).
  • Ignored cursor position reports during ESC[6n filtering.
• Routing & State:
  • Fixed exit notification when a non-UDP target is behind a UDP jump host.
  • Ensured the client exits properly when the remote shell ends.
  • Discarded server output during connection loss to prevent terminal artifacts.
  • Synced args.Destination with the resolved host so config processing correctly applies Host/Match stanzas (#251).
• General Fixes:
  • Ensured atomic binary installation via temporary files to prevent corruption (#245).
  • Prevented duplicate host aliases from being incorrectly parsed (#249).
  • Fixed macOS default ssh-sk-helper path resolution (#241).
  • Replaced strings.ToLower comparisons with strings.EqualFold for safer case-insensitivity.

🔨 Under the Hood (Build & Docs)

• Added automatic pre-release deployment via CI.
• Refined README formatting, table layouts, website URLs, and installation guides.
• Moved the Debian package section from utils to net.
• Updated package metadata and bumped dependencies.

New Contributors

• @p3ddd made their first contribution in #241
• @shoaly made their first contribution in #244
• @mvanhorn made their first contribution in #260

Full Changelog: v0.1.25...v0.1.26