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2026-09-28feat: support multiple prefix keys (#4653)JJ Liebig
* feat: support multiple prefix keys keys.prefix accepts an array in addition to a single string so one config can define several prefix keys. Every configured prefix enters the same prefix mode, and the help panel lists them all. Published keybinding profiles keep the primary prefix as a scalar and carry the rest in an optional extra_prefixes field so older clients keep working with the primary prefix. * fix: reject an empty prefix list on reload An explicitly empty keys.prefix array now stays empty through config parsing so validation rejects it and a reload keeps the current keybindings instead of silently falling back to ctrl+b.
2026-09-24feat!: replace the custom graphics api with optimized native kitty rendering ↵Can Celik
(#4561) * feat!: replace the custom graphics api with optimized native kitty rendering * fix: enable safe kitty optimizations automatically --------- Co-authored-by: JJ Liebig <jonathan.liebig@gmail.com>
2026-09-22fix: stagger restored agent startups (#4487)JJ Liebig
* fix: stagger restored agent startups refs #4102 * fix: report startup delay changes requiring restart refs #4102
2026-09-19feat: add configurable pane screen and scrollback clearing (#4383)Can Celik
2026-09-17fix(windows): prefer pwsh for the default pane shell (#4297)JJ Liebig
* fix(windows): prefer pwsh for the default pane shell Windows panes launched Windows PowerShell 5.1 (powershell.exe) whenever [terminal] default_shell was unset, ignoring PowerShell 7 even when pwsh.exe resolved on PATH. Resolve the unset default against PATH and prefer pwsh.exe, falling back to the inbox powershell.exe. An explicit default_shell still wins. * fix(windows): validate pwsh before using it as the default shell portable-pty resolves the configured shell with Path::exists and passes that path to CreateProcessW, which does not fall through to later PATH entries. Selecting an invalid pwsh.exe would therefore break new panes instead of falling back. Only prefer a pwsh.exe that starts with the PE MZ magic, and return its path so the validated binary is the one launched. * fix(windows): validate the full PE header before preferring pwsh Checking only the DOS MZ signature still accepted truncated images, DLLs, and foreign-architecture binaries. Because portable-pty passes the resolved path straight to CreateProcessW without trying later PATH entries, validate the PE signature, the COFF header (machine, executable-image bit, not a DLL, section count), and the optional header before preferring pwsh.exe. * fix(windows): accept native ARM64 pwsh and validate the section table Herdr ships an x64 Windows build that also runs on Windows ARM64 under x64 emulation, so cfg!(target_arch) cannot tell whether a native ARM64 pwsh.exe is launchable. Accept every executable machine type Windows supports instead of rejecting ARM64 on the x86_64 build. Also bound-check the section table (40 bytes per declared section) after the optional header so a truncated table falls back instead of being selected. * fix(windows): detect the native host machine for pwsh compatibility Machine compatibility was derived from cfg!(target_arch), which reports the emulated x64 process on Windows ARM64, and then briefly accepted ARM64 on every host. Read the native machine with IsWow64Process2 in the platform layer instead: ARM64 Windows accepts ARM64/x64/x86 images, x64 accepts x64/x86, and x86 accepts only x86.
2026-09-13feat: add Letta Code detection and restore (#3107)Can Celik
refs #3106 Co-authored-by: Cameron <cameron@pfiffer.org>
2026-09-07docs: prepare 0.9.0 release documentationOgulcan Celik
2026-09-07feat: make ui.pane_borders a three-state auto/always/off mode (#3234)Rudolf S.
* feat: make ui.pane_borders a three-state auto/always/off mode Legacy booleans keep parsing (true = auto, false = off); "always" frames a lone pane while pane_outer_borders is enabled. * fix: align pane border reload test and documentation --------- Co-authored-by: Rudolf Schmidt <me@rudionrails.com> Co-authored-by: Jonathan Liebig <jonathan.liebig@gmail.com>
2026-09-06feat: add conditional styles for sidebar tokens (#3693)Can Celik
2026-09-04feat: enable kitty graphics by defaultOgulcan Celik
2026-09-01refactor: render the shell in the client (#3487)Can Celik
* feat: add opt-in client-rendered shell * feat: add client-owned shell mouse controls * feat: complete client-owned shell chrome * feat: add client-owned shell settings and notifications * feat: run client shell custom commands * feat: render popup terminals in client shell * feat: add client-owned scrollback and copy mode * fix: preserve client worktree trust defaults * feat: render startup diagnostics in client shell * feat: render onboarding in client shell * feat: render product announcements in client shell * feat: render release notes in client shell * feat: render mobile switcher in client shell * feat: render kitty graphics in client shell * fix: preserve client shell lifecycle coherence * refactor: route client shell commands through endpoint connections * refactor: make the client-rendered shell the default * refactor: remove monolithic launch mode * refactor: complete client-rendered shell cutover * perf: retain client pane surface updates * perf: scale retained pane surface updates * perf: remove remote pane input latency * test: make client shell checks platform-independent * fix: prevent client timer starvation * test: fix client shell platform gates * test: accept retained surfaces in cross-area checks * test: make client mode assertions platform-neutral * fix: badge only outdated integrations
2026-08-27feat(detect): add muse agent with generic Pick blocked detection (#2489)Ömer Hamid Kamışlı
* feat(detect): add muse agent with generic Pick blocked detection Add Muse agent manifests and runtime detection for idle/working/blocked states. Blocked Pick is generic on footer 'Enter to select' so any question title/message triggers, fixing missed waiting answer where previous AND-gated rule required specific hint combos. Cover process names muse, muse-bin, muse-code variants and YOLO footer. refs #herdr * fix(detect): tighten muse manifest and agent lookup - manifests: change working_esc_interrupt and blocked_approval from whole_recent to bottom_non_empty_lines(8) to use captured bottom-buffer controls instead of incidental whole-pane text - manifests: anchor idle_prompt line_regex to ^\s*⟩\s*$ so working chrome "⟩ ..." does not match idle - runtime: restrict muse lookup to explicit aliases (muse|muse-bin|muse-code|muse-cli), remove starts_with("muse") fallback that misclassified museum/muse-helper/muser; add positive/negative identification tests - keep website mirror identical; verified with agent_detection manifest check --require-website refs #2489 refs #2456 * fix(detect): address mjdouglas vendor findings for muse - manifests: widen pick_request_blocked to bottom_non_empty_lines(8) and add Enter to toggle for multi-select; add menu_request_blocked for user-opened pickers (enter confirm/esc go back/esc close/space toggle); add workspace_trust_blocked for Do you trust dialog; tighten blocked_approval to footer chrome Allow once/Always allow/Yes proceed; split idle_prompt into any gate for empty and typed draft and not-gate pick/menu anchors; change idle_status_fallback from YOLO to model \u00b7 effort \u00b7 cwd shape - runtime: replace bare muse-bin alias with muse-bin-<version> digit check to match versioned launcher binary and avoid museum/muse-binary false positives - cross-checked with vendor-side captures reported on PR #2489 against strings in shipped muse-bin binary refs #2489 * fix(detect): handle path-qualified muse-bin versioned binary lookup_agent now uses path_basename before matching so a launcher exec with absolute argv0 like /usr/local/lib/muse/muse-bin-0.1.0-R708.1 is correctly identified. is_muse_versioned_binary also checks basename so direct path-qualified names succeed without relying on the argv0_argv fallback path. Prevents missed Muse detection when screen state and sound overrides are not applied. refs #2489 * fix(detect): add enter save to muse menu detection Evidence documents /theme with enter save footer which was not matched. Add enter save to menu_request_blocked any list and to idle_prompt not-gate (highlighted row ⟩ <choice> shares glyph) and keep website mirror in sync. Update evidence comment counts from four to five. refs #2489 * docs: add Muse to supported agents table Muse detection (manifest, process identification, sound) was added earlier but docs/next agents table omitted the row. Add Muse as screen manifest / none (no integration hook, consistent with Amp/Kiro/Maki) to en/ja/zh-cn translations. * fix(detect): resize agent arrays for new upstream variant Agent::ALL and SCREEN_MANIFEST_AGENTS gained an entry from master but kept stale size annotations, breaking compilation after rebase. refs #2489 * docs: add muse detection entry to next changelog refs #2489 * docs: add muse sound override to config reference refs #2489 * fix(detect): prevent false muse blocked states refs #2489 --------- Co-authored-by: Omer Hamid Kamisli <ohkamisli@poikus.com> Co-authored-by: Ogulcan Celik <ogulcancelik@gmail.com>
2026-08-23feat: add per-mode theme overrides (#2324)Alex
* feat: add per-mode theme overrides allow [theme.custom.light] and [theme.custom.dark] blocks so custom overrides can differ per resolved appearance when auto_switch flips. precedence: theme defaults, then [theme.custom], then the block for the active mode. configs without the new blocks resolve unchanged. refs #837 * docs: complete per-mode theme documentation --------- Co-authored-by: Ogulcan Celik <ogulcancelik@gmail.com>
2026-08-18feat: make Windows generally availableOgulcan Celik
2026-08-15fix(theme): keep default active rows subtle and add navigate cursor color ↵Can Celik
(#2838) refs #2792
2026-08-15feat: make headless terminal size configurable (#2829)Can Celik
refs #2828
2026-08-14fix: keep active sidebar rows visible (#2794)Can Celik
refs #2792
2026-08-13feat: add qwen code detection and restore (#2743)Can Celik
refs #2730
2026-08-11feat: keep the outer terminal window title in sync with the session (#2627)David Heinemeier Hansson
* feat: keep the outer terminal window title in sync with the session Herdr emulates the terminals in its panes, so an OSC 0/OSC 2 title written inside a pane stops at Herdr and never reaches the terminal Herdr itself runs in. That outer title is what window managers read for title bars, tab bars, and group bars, so it kept showing whatever the shell or ssh happened to leave behind. Add `ui.window_title`, rendered from {hostname}, {workspace}, {tab}, {pane}, and {terminal_title}, and push it to the foreground client whenever it changes. It renders on the server, so {hostname} names the machine the panes actually run on rather than the machine a thin remote client runs on, and it is gated on a pending render so an idle loop never pays for it. A title is only remembered as delivered once a foreground client takes it, so the first client to attach is written to rather than skipped. `client.window_title.set` still wins over the configured title, and clearing it now hands the title back to `ui.window_title` instead of only "herdr". * fix: deliver the outer window title to a newly attached client ClientConnected assigns the foreground client directly rather than going through promote_client_to_foreground, so clearing the sent-title cache there missed the case that matters most: attaching a second terminal to a running session. The title was usually unchanged, so the sync returned early and the new terminal kept whatever its shell or ssh had left. Key the cache on the client that received the title instead of relying on every foreground assignment to invalidate it. * perf: keep hidden pane output off the window title path Output from a hidden or background pane sets needs_render without setting needs_full_render, and the retained render plan then skips presentation for it entirely. Syncing the title on needs_render meant every coalesced hidden-output tick still formatted, sanitized, and allocated a title that could not have changed, against the hidden-source early exit AGENTS.md requires. Every input to the title is app state, which always requests a full render, so gate on that instead. The one exception is the focused pane's own terminal title, which arrives through PTY parsing, so ask for a full render when that changes and the configured title uses it. * fix: only cache a window title a client writer received * fix: carry an api set window title across a live handoff * fix: make outer window title updates event-driven --------- Co-authored-by: Ogulcan Celik <ogulcancelik@gmail.com>
2026-08-10feat: add move tab keybind actions (#2561)David Heinemeier Hansson
* feat: add move tab keybind actions Add optional keys.move_tab_previous/move_tab_next actions that reorder the active tab one position, wrapping at either end. Reuses the existing tab.move runtime path that mouse drag reordering already drives. * fix: exit navigate mode on single-tab move attempts
2026-08-10feat: add configurable tab bar status (#2586)Can Celik
* feat: show a zoom indicator in the desktop tab bar Reserve the right edge of the tab row for a ZOOM pill while the focused pane is zoomed, matching the accent style of the mode bars. The per-tab Z suffix stays; the pill makes the zoomed state visible at a glance like tmux's status-right flag. * feat: optionally show the hostname in the desktop tab bar Add ui.tab_bar_hostname to display the machine's hostname at the right edge of the tab row, like tmux's #h in status-right. The value resolves where the server renders, so remote sessions show the remote host. Off by default. * fix: strip control characters from the tab bar hostname * fix: hide the hostname when it would squeeze out the tab strip * feat: add configurable tab bar status * fix: harden tab bar status updates * fix: terminate tab bar status process trees * fix: disable status commands on unsupported platforms * fix: skip unchanged status command renders * fix: keep tab bar status opt-in by default --------- Co-authored-by: David Heinemeier Hansson <david@hey.com>
2026-08-09feat: add direct pane resize keybindings (#2558)David Heinemeier Hansson
2026-08-09feat: make outer pane borders configurable (#2535)David Heinemeier Hansson
2026-08-05feat(theme): add optional sidebar backgroundOgulcan Celik
2026-08-04feat(ui): add distinct status indicators (#2282)Can Celik
refs #2260
2026-08-01feat(ui): make pane scrollbars optional (#2166)Can Celik
refs #2167
2026-07-31feat: support bottom tab bar placement (#2118)Can Celik
* feat: support bottom tab bar placement * fix: preserve mouse cleanup under bottom mode bar refs #2117
2026-07-31fix(sidebar): keep worktree groups packedOgulcan Celik
2026-07-25feat: switch IME to ASCII in prefix mode on Windows (Korean IME) (#1823)joonhwan
* feat: switch IME to ASCII in prefix mode on Windows Extend switch_ascii_input_source_in_prefix to Windows: detect IME state via WM_IME_CONTROL and toggle to ASCII with SendInput for the Korean IME. Other IME languages are detected and left unchanged. refs #1802 * docs: clarify Windows (Korean IME) support for prefix ASCII switching Follow-up to the Windows prefix ASCII switch, which extended switch_ascii_input_source_in_prefix to Windows but left the surrounding text describing macOS only. - Settings row label: "(macOS)" -> "(macOS/Windows)", plus its test. - Generalize the Windows behavior wording to "switches the IME to English (ASCII) input" in the config-reference.json entry and the model.rs doc comment, and state that Windows support is currently limited to the Korean IME. - Add a :::caution aside noting the Korean-IME-only limitation to the en/ja/zh preview docs, keeping the three translations in sync. refs #1802 * fix: warn when prefix IME toggle injection is incomplete SendInput can queue fewer events than requested (for example when blocked by UIPI), which would otherwise leave the IME silently stuck in ASCII or native mode. Log a warning with the sent and expected counts so the failure is diagnosable. refs #1802 * fix: guard prefix IME restore and correct open-status naming Address maintainer review on the Windows prefix ASCII switch: - Restore only when safe: store the foreground window at switch time and, before toggling back, require that the same window is still focused and the IME is still in English. This stops restore from toggling another application or overriding a manual return to Hangul during prefix mode. - Report injection success from send_vk_tap and only arm restoration when the initial toggle landed; on a partial injection retry the dropped key-up so a key is not left logically held down. The injection policy is split into send_vk_tap_with(inject) so the success, partial, and failure branches are unit-tested without the real SendInput. - Correct the WM_IME_CONTROL sub-command naming: 0x0005 is IMC_GETOPENSTATUS (IME open state), not IMC_GETCONVERSIONMODE. Behavior is unchanged; the constant, comments, and tests now describe the open-status read. refs #1802 * fix: bound IME open-status read with a timeout The prefix IME switch reads IMC_GETOPENSTATUS via WM_IME_CONTROL, which crosses into the terminal-emulator process. A plain SendMessageW would block herdr's client thread until that process responds, indefinitely if it hangs. Read through SendMessageTimeoutW with SMTO_ABORTIFHUNG and a short timeout instead; on timeout the switch is skipped and restore does nothing, so a hung host process can no longer freeze prefix-mode entry or exit. refs #1802 * fix: preserve windows ime restoration after partial injection refs #1802 --------- Co-authored-by: Ogulcan Celik <ogulcancelik@gmail.com>
2026-07-25fix: copy retained mouse selections with keyboard shortcutsOgulcan Celik
refs #1782
2026-07-18feat: add optional workspace name promptOgulcan Celik
2026-07-16feat: configure collapsed sidebar startup stateOgulcan Celik
refs #1463
2026-07-16feat: add configurable sidebar token stylesOgulcan Celik
2026-07-15docs: finalize next release documentationOgulcan Celik
2026-07-14feat: configure sidebar entry gapsOgulcan Celik
2026-07-13feat: add configurable sidebar metadata tokensOgulcan Celik
2026-07-13docs: add versioned config referenceOgulcan Celik