Lataa worktrunk v0.40.0

Release Notes
Improved
- Aliases route --KEY=VALUE to template variables and forward everything else as {{ args }}: --KEY=VALUE (or --KEY VALUE) binds KEY whenever the template references {{ KEY }} — wt deploy --env=staging sets {{ env }} to staging. Everything else joins {{ args }}, a space-joined, shell-escaped sequence ready to splice into a command. With s = "wt switch {{ args }}", wt s some-branch expands to wt switch some-branch. Index with {{ args[0] }}, loop with {% for a in args %}…, count with {{ args | length }}; each element is escaped individually, so wt run 'a b' 'c;d' renders as 'a b' 'c;d' — no shell injection. Tokens after -- forward unconditionally, bypassing any binding. Hyphens in keys become underscores: --my-var=x binds {{ my_var }}. Built-in vars can be overridden inside the template — --branch=foo sets {{ branch }} for the invocation, but the worktree's actual branch doesn't move. (Breaking: --var KEY=VALUE and --var=KEY=VALUE removed; wt <alias> no longer errors on unrecognized flags — they forward to {{ args }}.) (#2280, #2287, #2304)
- -y, --yes is a top-level global flag: Lives once on Cli instead of being duplicated across switch, remove, merge, commit, squash, prune, the ten hook subcommands, shell install/uninstall, plugin install/uninstall, and config update. wt -y <anything>, wt <anything> --yes, and wt --yes <anything> all skip approval and confirmation prompts for that invocation. (Breaking: post-alias --yes removed — use the global form wt -y <alias>.) (#2279, #2290)
- wt config alias show and wt config alias dry-run: show prints the configured template tagged by source (user/project). dry-run previews what an invocation would run without executing — wt config alias dry-run s -- target-branch renders exactly what wt s target-branch would produce. Output annotates routing with # bound: and # args: comments so you can see how each token was interpreted. Both warn when the alias name shadows a top-level built-in (e.g. list, switch); the alias is only reachable via wt step <name>. wt <alias> --help / -h prints a hint pointing at these subcommands rather than silently forwarding the flag into {{ args }}; use wt <alias> -- --help to forward. (Breaking: wt <alias> --dry-run and wt step <alias> --dry-run retired — use the new subcommand.) (#2291, #2304)
- wt config approvals replaces wt hook approvals: Approvals cover both project hooks and project aliases, so the old namespace under hook mis-scoped the command. add now walks both hook and alias commands — a project that only declares aliases can bulk-pre-approve in one shot. wt hook approvals remains as a hidden alias that emits a deprecation warning and forwards. (#2282)
- Scope-aware template variable validation: A new ValidationScope (Hook(HookType), SwitchExecute, Alias) drives validation across every template surface. {{ args }} only validates inside aliases; {{ target }} only in switch/start/merge contexts; {{ pr_number }} only in PR-aware switch hooks. A typo like {{ target }} in a pre-start hook is caught at validation time instead of failing at runtime with an undefined-var error after the worktree was created. (#2288)
- pr_number and pr_url template variables for PR/MR worktree hooks: Available in pre-switch, post-switch, pre-start, and post-start when the worktree was created via wt switch pr:N / mr:N. One canonical pair for both GitHub and GitLab — no separate mr_* aliases. Previously the runtime injected these in pre-start only and the validator rejected them, so the feature was unreachable. (#2300)
- target template variable injected symmetrically on switch/create/start: pre-switch already injected target (and conditionally target_worktree_path); post-switch, pre-start, and post-start now do too. A user writing {{ target }} in post-start no longer hits an undefined-var error at runtime. (#2295)
- Single announce line for combined background hooks: When user and project hooks both fire on post-merge, post-commit, post-start/post-switch, or post-remove, output collapses into one ◎ Running <hook>: user:…, project:… @ <path> line instead of one per source. Extracted a shared spawn_background_hooks so every site uses the same path. (#2294, #2298)
- wt config state get shows trash and git commands cache: Two categories that wt config state clear sweeps (.git/wt/trash/ staged worktree directories and .git/wt/cache/ SHA-keyed caches) were missing from state get, so users could clear state without ever knowing those entries existed. (#2292)
Fixed
- Reject underscore in vars keys with a clear error: wt config state vars set db_suffix=foo previously passed validation and then failed with a cryptic error: invalid key: worktrunk.state.main.vars.db_suffix from git (git config variable names must match [a-zA-Z][a-zA-Z0-9-]*). Now rejected at validate_vars_key with a message pointing users to use hyphens instead. (#2285, thanks @Mziserman)
- Surface the full anyhow error chain in spawn and ref-update messages: Failed to spawn pipeline: Failed to spawn detached process previously dropped the underlying io::Error (errno + OS description). Three sites switched from {err} to {err:#} so the full source chain renders — affects pipeline spawn warnings, wt switch LLM-summary preview errors, and git push failure messages. (#2251)
- Template parse errors in aliases now surface before flag routing: A syntax error in any alias step previously caused that step to silently contribute no names to the referenced-var set, which could change how --KEY=VALUE tokens bound vs. forwarded as positionals; the syntax error only surfaced later at expansion time. Now errors propagate up front so flag routing isn't determined by malformed templates. (#2299)
Documentation
- Hook template variables grouped by kind: Variables in help text and docs now follow a consistent ordering (worktree, base, target, PR/MR, hook infrastructure) instead of mixed kinds. (#2303)
- Aliases section rewrite: Replaced the "How arguments are routed" table with a concrete fly deploy example, restored the up rebase-every-worktree recipe, added a since-main example, and reorganized so the simpler "Passing values" section comes before the routing mechanism. (#2304)
- Trim filler in prose and help text: Removed redundant qualifiers and parenthetical hedges across extending.md, faq.md, tips-patterns.md, and the list / step help text. (#2277, #2289)
- Drop stale [experimental] from aliases docstring (#2283) and expand the worktrunk skill description with lexical triggers so Claude finds it more reliably (#2301).
Internal
- Move approval handlers to config module: Reflects the new wt config approvals home. (#2286)
- Nix flake reads Rust channel from rust-toolchain.toml: Single source of truth instead of duplicating the toolchain version. (#2188)
Install worktrunk 0.40.0
Install prebuilt binaries via shell script
curl --proto '=https' --tlsv1.2 -LsSf https://github.com/max-sixty/worktrunk/releases/download/v0.40.0/worktrunk-installer.sh | sh && wt config shell install
Install prebuilt binaries via powershell script
powershell -ExecutionPolicy Bypass -c "irm https://github.com/max-sixty/worktrunk/releases/download/v0.40.0/worktrunk-installer.ps1 | iex"; git-wt config shell install
Install prebuilt binaries via Homebrew
brew install worktrunk && wt config shell install
Download worktrunk 0.40.0
────────────────────────────────────────────────┬───────────────────┬─────────────
File │Platform │Checksum
────────────────────────────────────────────────┼───────────────────┼─────────────
worktrunk-aarch64-apple-darwin.tar.xz │Apple Silicon macOS│checksum
────────────────────────────────────────────────┼───────────────────┼─────────────
worktrunk-x86_64-apple-darwin.tar.xz │Intel macOS │checksum
────────────────────────────────────────────────┼───────────────────┼─────────────
worktrunk-x86_64-pc-windows-msvc.zip │x64 Windows │checksum
────────────────────────────────────────────────┼───────────────────┼─────────────
worktrunk-aarch64-unknown-linux-musl.tar.xz │ARM64 MUSL Linux │checksum
────────────────────────────────────────────────┼───────────────────┼─────────────
worktrunk-x86_64-unknown-linux-musl.tar.xz │x64 MUSL Linux │checksum
────────────────────────────────────────────────┴───────────────────┴─────────────
Install via Cargo
cargo install worktrunk && wt config shell install
Install via Winget (Windows)
winget install max-sixty.worktrunk && git-wt config shell install
Install via AUR (Arch Linux)
paru worktrunk-bin && wt config shell install