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

v0.1.26 Latest

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What's Changed

This release introduces significant enhancements to SSH compatibility, security, and connectivity, including long-awaited support for UDP port forwarding, security keys, and external password manager integration.

🚀 New Features

• UDP Port Forwarding: Expanded connectivity options by adding support for UDP port forwarding alongside standard TCP.
• Reconnect Mode: Support for reconnect mode in the foreground (#216), improving session resilience during network instability.
• External Password Manager Integration: Support for {Key}Command directives (e.g., PasswordCommand, PassphraseCommand). You can now retrieve secrets directly from tools like 1Password, Bitwarden, or macOS Keychain (#227).
• Security Key Support: Full support for hardware security keys (e.g., YubiKey) using sk-* key types.

⚙️ SSH Compatibility & Configuration

• Enhanced Match Support:
  • Support for OpenSSH Match directives via ssh -G integration (#209).
  • Upgraded ssh_config parser to better handle complex Match blocks and configurations.
• Hostname Canonicalization: Added support for SSH hostname canonicalization (#220), allowing for more flexible host resolution.
• OpenSSH Parity:
  • IdentitiesOnly: Aligned public key selection with OpenSSH IdentitiesOnly semantics (#224, #225).
  • SendEnv: Support for SendEnv with - negation (e.g., SendEnv -LANG) to match OpenSSH behavior.
  • Algorithm Preference: Updated default signature preference to favor rsa-sha2-512 over rsa-sha2-256 (#208).
• Unix Socket Control: Honor StreamLocalBindUnlink and StreamLocalBindMask for LocalForward to Unix sockets, ensuring better cleanup and permission management (#229).

🔧 Improvements & Bug Fixes

• Custom MTU: Users can now configure a custom Maximum Transmission Unit (MTU) for optimized network performance.
• Terminal & UI:
  • Windows Fix: Resolved terminal state corruption issues on Windows (#231).
  • Password Input: Added paste support for password prompts in the terminal tools.
  • Exit Feedback: Added detailed warning messages on session exit errors (#218) to help diagnose connection drops.
• Dependency Upgrades: Upgraded core components including bubbletea to v2 and golang.org/x/crypto.

New Contributors

• @Angelbear made their first contribution in #209
• @KimYannn made their first contribution in #227
• @ernie made their first contribution in #229

Full Changelog: v0.1.24...v0.1.25

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tssh v0.1.24 is the client for tsshd v0.1.6. For full details on UDP features, see: https://github.com/trzsz/tsshd/releases/tag/v0.1.6

Special thanks to @Drag0nFly for extensive testing and feedback (#167).

tssh Highlights

• SSH escape sequences support
• Subsystem support (scp and sftp)
• Wayland (waypipe) support
• Keep-alive behavior optimized
• Improved debugging experience
• improvements for smoother shutdown
• Enhanced tmux integration

v0.1.24

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What's Changed

• feat: support connection migration for UDP mode
• feat: first hop of ProxyJump supports UDP mode
• feat: support cert auth for opkssh
• feat: port forwarding support unix socket
• feat: support token %k for UserKnownHostsFile
• feat: support $XDG_CONFIG_HOME for tssh
• feat: support IdentitiesOnly option
• feat: support ConnectTimeout option
• feat: support GSSAPIAuthentication
• feat: support '\t' for ExpectSendText
• feat: support DNS SRV #159
• feat: support --dns argument by @fa1seut0pia in #154
• fix: ServerAliveInterval and ServerAliveCountMax option

New Contributors

• @fa1seut0pia made their first contribution in #154

Full Changelog: v0.1.22...v0.1.23

v0.1.23

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