v0.1.2

Breaking

• BREAKING constructors apply fully — under-application is an immediate arity error (#621)
• BREAKING List.maximum returns Option instead of erroring on empty lists (#596)

Features

• peek the extrapolation on a paused edit (#638)
• module entry roles over the device push protocol (#630)
• branded comparison — 90deg == 90deg, and engine values refuse == at check time (#633)
• unit operators — 90deg + 45deg, resolved by ad-hoc overloading (#628)
• module entry roles on the embedded producer (#623)
• fade the extrapolation preview in and out (#632)
• aspect-true panes — 16:9 cards, edge-attached wires, the seat moves last (#626)
• flash the viewport and glow the marker when a reload lands (#631)
• orbs speaks the real transport (#622)
• guide the paused hero — notice, pulse, reset, and camera grouping (#620)
• add opt-in Vim keybindings (#589)
• unit-suffix literals — 90deg, 0.5s, and user-declared units (#617)
• stage a one-click platformer hero (#587)
• network view — the server hub with live packet flow (#615)
• entries resolve roles from inline modules (#601)
• categorize the API reference (#609)
• grid layout — client cells over a server strip (#611)
• a server pane in the sandbox — run examples/mp end-to-end (#604)
• generate the standard library API reference (#606)
• backward trail — the recorded past beside the predicted future (#608)
• inline-module aware completion, hover, and folding (#595)
• add Math.lerp, Math.smoothstep, and List.minimum (#598)
• inline module declarations (#590)
• host net coordinator — perfect links between panes (#593)
• oriented arrow marks in extrapolation trails (#599)
• net egress/ingress on the embedder seam (#591)
• same-file entries — roles resolve prefixed bindings, native + wasm (#554)
• add model-space look-at IK (#586)
• add screen-to-world picking rays (#584)
• refine debug camera diagnostics (#583)
• add breakout game (#582)
• promote roguelike game (#576)
• add compact unsafe code results (#574)
• add body rotation builders (#575)
• generate typed joint constants (#572)
• add debug camera diagnostic tools (#571)
• run SDK code in an unsafe Node child (#570)
• add universal debug cameras (#569)
• make pointer-led Sprite games resize-correct (#553)
• add opt-in game-owned camera controls (#568)
• add per-entry game jam fix rounds (#567)
• add deterministic snapshot edge sets (#551)
• orbs — the minimal multiplayer sample (#549)
• add deterministic immutable maps (#550)
• develop serves the debug runtime on a default localhost port (#548)
• bake a macro occlusion map for the far field (#546)
• add a deterministic Tetris sample (#540)
• dock the in-frame scrubber at the top (#538)
• language_guide MCP tool over the functor-lang skill (#537)
• one scrubber at every client count — the chrono bar unification (#534)
• author a game entirely over MCP (#536)
• api_reference MCP tool over the embedded prelude docs (#531)
• functor mcp — an MCP server over the debug runtime (#529)
• the model in GET /state is structured JSON (protocol v4) (#528)
• filled circle, polygon, and line sprites (#530)
• multiplayer pane grid — N client panes behind a chrono bar (#526)
• mountScrubber({ hidden }) — the seam without the chrome (#524)
• Sprite.text with an embedded default font (#527)
• synthwave chrome polish for the editor surfaces (#523)
• scrubber rail ticks, full-height markers, and depth polish (#522)
• add terrain to the sandbox as a perf stress test (#521)
• per-axis velocity commands (#514)
• enable fixed foveated rendering, and run at 80 Hz (#520)
• script mouse buttons in --input-script (#518)
• request a display refresh rate, and report what we get (#515)
• walk the terrain, and launch spheres that roll down it (#511)
• Vec3 accessors and arithmetic (#512)
• functor boot loader on the editor surfaces (#510)
• shooting-range — a first-person range with click-to-fire (#507)
• fill the verified stdlib gaps (List/Math/Text) (#506)
• add >=, <=, and != comparison operators (#504)
• a character controller on the physics hook, and Physics.upright (#503)
• add a mouseButton hook and held mouse-button state (#501)
• synchronous world queries — linearVelocity, cast, castExcluding (#492)
• functor test runs a project's expect tests under the engine prelude (#488)
• inject XR poses over the debug protocol (#486)
• generate the sample heightmap with fBm and erosion (#481)
• dress the layered bands with CC0 detail maps (#480)
• mipmap and anisotropically filter loaded textures (#477)
• add 4 km showcase (#471)
• add shared heightfield physics (#470)
• add stereo-stable quadtree rendering (#469)
• run the multiplayer sim in the browser (#474)
• link browser editors to external runtimes (#473)
• add heightmap descriptors and decoding (#468)
• whole-environment time travel — seek the sim, not one client (#472)
• add XR controller interaction (#467)
• emulate XR controllers on desktop (#466)
• expose sampled input snapshots (#465)
• expose sampled Quest controller input (#463)
• add sprite atlas regions and sampling (#464)
• add string interpolation (#461)
• extrapolate 2D sprite trajectories (#462)
• bundle Animator with engine hosts (#459)
• synchronize project assets to Quest (#460)
• add plain-data 2D sprite rendering (#457)
• generate API reference from the prelude (#454)
• add Option and Result stdlib modules (#456)
• compose tracking onto authored cameras (#453)
• add bundled stdlib module substrate (#452)
• alternating gif↔text feature rows with scroll-into-focus reveal (#450)
• llm-native demo GIF generator (#449)
• batteries-included demo GIF + CDN animation example (#448)
• reproducible introspective demo GIF generator (#447)
• reproducible instant-feedback demo GIF generator (#446)
• reproducible time-travel demo GIF generator (#443)
• standalone full-featured demo editor (#445)
• homepage refresh — grounded copy, aurora backdrop, platforms, spacing system (#442)
• add isomorphic debug capture (#438)

Fixes

• lambda-param hover types; keep codelenses through transient parse errors (#641)
• give the gh hover tooltip the pointer hover's chrome (#624)
• resilient hook — degrade on error, uniform read timing, primed cold start (#618)
• selecting a pane hands it the real keyboard (#612)
• teaching errors for <- assignment, qualified constructors, and nested match (#597)
• steer only the horizontal axis, so the walker stops floating (#535)
• unknown type annotations are diagnosed instead of silently disabling checks (#519)
• mario hot-reload test tracks the current jump constant (#517)
• /time advances accumulate, batch, and refuse a fixed-time pin (#495)
• serve the API reference statically so no-JS agents can read it (#489)
• unknown builtin-module members are check-time errors (#485)
• a branch rewinds the subscription-timer window too (#482)
• a refused WebSocket no longer traps the runtime (#475)
• version badge shows the real release on deploy, dev locally (#444)
• use exact per-eye projections (#437)

Performance

• hold 72 Hz on Quest with detail maps enabled (#494)

Docs

• trim sharp edges to the real ones (#616)
• the manual points at the generated API reference (#614)
• group the manual nav (#610)
• the functor-lang skill defers surfaces to the generated reference (#613)
• graduated quick-start tutorial (#605)
• restructure the manual's Get started (#603)
• teach unsafe MCP automation in the hosted manual (#573)
• reproducible MCP demo capture for the AI-native story (#547)
• surface the MCP server in the AI-native story (#539)
• game-jam — CI-matrix, wasm-bundle, and watcher lessons (#532)
• add oculus-profiling for GPU counter analysis (#499)
• game-jam — sweep fixer build caches between heavy agents (#498)
• game-jam — playable gallery tool for judging (#493)
• audit functor-lang skill claims against executed behavior (#490)
• game-jam operational lessons from the first run (#491)
• bring the manual's stdlib, input, UI, and physics coverage back in line with the engine (#484)
• add game-jam skill for multi-agent sample jams (#479)
• split the manual and API reference (#458)
• document the engine prelude (#455)
• show the feature demos as GIFs; add batteries + AI-native (#451)
• readme tweaks (#436)

Refactoring

• orbs adopts module Client/Server over the real transport (#639)
• remove the ghost preview mode and the extrapolation settings popover (#602)
• rename the Camera prelude module to Camera3D (#592)
• load the hero editor as a lazy island behind the boot loader (#516)
• render the IDE chrome with React islands (#513)
• render the sandbox chrome with React islands (#508)
• migrate the entry files to TypeScript (#502)
• migrate lang-intel to TypeScript (#500)
• migrate runtime-target to TypeScript (#497)
• migrate the leaf modules to TypeScript (#496)
• typecheck the editor↔player protocol (#483)
• share one build-time header across pages (#476)
• web reuses the embedded producer (delete FunctorLangWebGame) (#441)
• unify the producer reload clock behind now_ms() (#439)

v0.1.1

Breaking

• BREAKING the asset flag day — bare-string coercion into consumers is retired (B.6) (#419)

Features

• live expect-test gutters — red/green/re-running in VSCode and the web IDE (#435)
• lobby — a pure-.fun master server (register/discover/join, all typed) (#427)
• examples/mp speaks the typed wire — Protocol.Wire replaces the string codec (#426)
• run vr — one-command remote develop on an adb-attached headset (#431)
• POST /reload-source on device — the remote-develop push loop (M1b) (#430)
• typed messages — Effect.sendMsg delivered as Net.Data (#424)
• the embedded Functor Lang producer — real interpreted games on the Quest (M1a) (#428)
• interpreter step budget — bounded expect evaluation for live tooling (#429)
• multi-entry projects — named entries in functor.json + --entry (#423)
• inline expect tests + functor-lang test verb (#422)
• bundle the functor CLI in platform VSIXes — all-in-one install (#416)
• functor.* prefix + a functor status bar item with version tooltip (#410)
• native text input — keyboard routing, focus survival across re-renders (#418)
• download the functor CLI on demand for the live preview (#409)
• webview-animated — CSS @Keyframes + :hover transitions in the webview (#415)
• platform VSIXes with the bundled language server, published on release (#407)
• Effect.preload / preloadThen — warm the asset cache ahead of draw (B.5) (#413)
• Style.* — typed inline styles for the webview (the elm-css split) (#412)
• record webview events for deterministic replay (#411)
• webview — HTML/CSS game UI via blitz (native) + a DOM overlay (wasm) (#404)
• Asset.whilePending — placeholder assets while the real one streams in (B.4) (#406)
• go-to-definition into the .funi prelude, doc comments in hover (#405)
• complete the registry migration; retire the legacy match (#399)
• build verifies asset locators + deprecates bare-string asset args (B.3) (#397)

Fixes

• deep values can't crash in-process tooling — iterative walks + an enforced depth≤budget contract (#432)
• Quest device bring-up — activity context, ANR input drain, Horizon manifest (#425)
• recompute extrapolated history after hot reload (#420)
• sync player.html input bridges with the runtime host page (#403)

Performance

• move blitz parse/resolve/paint to a worker thread (#414)

Docs

• split README into README + DEVELOPMENT; recommend prebuilt binaries (#421)
• open PRs as drafts until verification and media have landed (#408)
• release version badge at the top of the README (#401)

Refactoring

• asteroids adopts List/Math/boolean builtins + clear color (#434)

v0.1.0

Features

• version + pre-alpha badge in the site header (#392)
• migrate Physics, Asset, and Anim to the external registry (#393)
• .asset.json sidecars — remote (CDN) assets in the typed manifest (B.2b) (#391)
• add the Functor icon — favicon, VS Code file icon, header mark (#389)
• functor import generates the full typed asset manifest (B.2) (#387)
• migrate the rendering vocabulary to the external registry (#385)
• execution-recency gutter — parity with the web editors (#386)
• numeric loop sites show their min…max range inline (#383)
• Asset.model/texture/sound — branded asset locators (B.1) (#384)
• typed external registry for the Functor <-> Rust bridge (#377)
• brand spatial vectors as an opaque Vec3 value (#372)
• Sub.assets — loading progress as a subscription, with examples/loading (#378)
• journal ring + per-frame execution coverage on the trace (#379)
• live values in the sandbox and web IDE while paused (#375)
• brand colors as an opaque Color value (#369)
• trace v2 — draw pass, previews, and reference sites on the wire (#374)
• value previews, kind, and reference-site recording (#373)
• hot-reload asset files on the desktop runtime (#368)
• type input keys as the built-in Key variant (#366)
• VSCode-style status bar with Problems and Output panels (#363)
• wire project-aware language intel into the IDE editor (#362)
• load assets from URLs natively, with a verified disk cache (#365)
• brand Random seeds as an abstract Random.Seed type (#364)
• project-aware analyze/hover/complete for multi-file editing (#361)
• make the time-travel timeline stable and extensible (#354)
• a browser IDE — multi-file editing, live preview, project download (#349)
• functor_lang_set_project — multi-file hot-swap seam for the web IDE (#348)
• Ui.center() anchor — pin a panel to the screen center (#337)
• wasm emits inspector traces — the VS Code preview auto-connects (#350)
• literals inside tuple/ctor patterns (#334)
• skip non-identifier / dot-prefixed .fun siblings (#333)
• if/else conditional expression (#345)
• inspector attach/detach commands + trace relay (#342)
• live-value inlay hints + execution picker from paused traces (#341)
• replay journal + GET /trace — the paused-scene inspector data path (#340)
• per-call binding-site recorder for the paused inspector (#339)
• pure seeded PRNG — Random.step / Random.range (#328)
• math builtins — sqrt, atan2, abs, floor, mod, min, max, pow, pi (#327)
• per-node translations + bbox in the model report (#335)
• Frame.withClearColor — explicit background clear color (#332)
• short-circuiting boolean operators && / || / not (#330)
• List.length/append/flatten/any/all/reverse/isEmpty + clearer depth-cap error (#326)
• build wasm exports a self-contained static web bundle (dist/web) (#325)
• scrubber redesign — future bar, ⚙ popover, ghost as a mode (#323)
• asteroids — a complete end-to-end game (menu, waves, score, sound) (#324)
• scene-diff preview in the scrubber, both shells (T6) (#321)
• scope-aware completion — locals in scope and typed record fields (#319)
• scene-space strobe — full-intensity future copies (T6) (#318)
• textDocument/completion — dot-completion off the last-good parse (#316)
• lit skinned material — skinned models shade with the frame's lights (#301)
• the ui widget showcase — every interactive widget in one panel (#299)
• Ui.textInput — controlled text editing with the keyboard focus gate (#297)
• extension + .fun file icons, package/install scripts (#296)
• functor import — typed clip constants from a project's glTF models (#295)
• Ui.slider + Ui.row + the remaining anchors (#294)
• Ui.button — the first interactive widget, with examples/counter (#293)
• Animator crossfade module + A/B demo (#292)
• the UI-event seam — slot-addressed widget events fold through update (#291)
• Add/Mask/Rotate/Rest nodes — additive layers, masking, per-joint control (#290)
• declarative animation — Anim.clip / Anim.blend + Scene.animate (#287)
• implement MLE project scaffolding (#282)
• author full host prelude as .mlei + hard-bijection drift test (2e-ii) (#275)
• functor-prelude crate + Scene .mlei + check-time prelude wiring (2e-i) (#274)
• host-agnostic prelude injection hook (load_with_prelude) (#273)
• interface files (.mlei) — bodyless signatures + interface-only modules (#272)
• abstract (opaque) types — type SceneNode (#271)
• let-binding type annotations — let name: Type = value (#270)
• function & tuple type syntax — (A, B) => C, (A, B), grouping (#269)
• inlay hints, signature code lens, and project-aware analysis (#268)
• partial-application-aware diagnostic — recover the forgotten-argument error (#266)
• thread-last piping + subject-last prelude (currying migration step 3) (#265)
• call-site currying + partial application (currying migration step 1/5) (#264)
• interpreter benchmark framework + seed corpus (mle bench) (#263)
• Debug.log — pipe-friendly trace through the region-aware log path (logging PR-4b) (#262)
• region-aware logging — log events + Rust log facade (logging PR-4a) (#261)
• web forward-ghosting + DOM ghost toggle (#258)
• rich MLE diagnostics + error hints + ASCII fallback (UX pass PR-3/3, closes) (#259)
• live-region TUI + sticky telemetry panel (UX pass PR-2b) (#254)
• native egui ghost toggle + divisions/time controls (#257)
• F2 — forward-ghost a scripted jump (tweak-a-constant demo) (#255)
• F1 — sub-stepping in the forward-step (accurate velocity arcs) (#253)
• route in-process runtime output through the event stream (UX pass PR-2a) (#252)
• T6b-3 — scripted-input capture for deterministic headless runs (#251)
• T6b-2 — frame-indexed input log + replay in forward-step (#250)
• output event stream + JSON renderer (UX pass PR-1/3) (#249)
• mario — model-driven platformer with a chasm (time-travel demo vehicle) (#247)
• T6d forward-ghosting — composite N stepped frames (--ghost) (#246)
• deterministic headless forward-step (T6b) (#244)
• tts is a game clock — scrubbing rewinds time-driven visuals (#242)
• T5 screen-space compositor + fork-overlay demo (#236)
• port lighting to MLE — the culminating E2 port (#231)
• T2+T3 — shell-owned egui scrubber overlay (first cut) (#226)
• audio API — one-shots + soundScape (E2) (#230)
• Light.spot + Scene.litNormalMapped prelude surface (E2) (#229)
• List.grid + Scene.scaleXYZ + synthwave port (E2) (#228)
• HTTP effect primitive + netdemo port (E2) (#227)
• POST /rewind — drive the coupled scene rewind live (#225)
• port mpclient to MLE (E2) (#224)
• port mpserver to MLE (E2) (#223)
• T1c — coupled scene rewind (model + physics together) (#222)
• Text.split/join/parseFloat string builtins (E2 groundwork) (#220)
• T1b — record the MVU model each rendered frame (#219)
• T1 — History model snapshot ring + design doc (#218)
• list patterns + cons — [a,b] / [head, ..rest] / [x, ..xs] (#217)
• MLE networking surface — Sub.connect/listen, Effect.send, Net ADT + ws ports (#216)
• Phase 6 — pause/rewind/replay (the culmination) (#215)
• C4b-5 — the skybox surface + the finished mle-atmosphere demo (#208)
• E1 complete — full-frame hello parity (heightmap, textures, HUD) (#214)
• Phase 5 — collision events (Physics.events sub) (#212)
• pixel-type accents + status tooltip seam (#211)
• Phase 4 — Physics.raycast as a deferred tagger effect (#207)
• cubemap skyboxes — a frame-level six-face sky (#204)
• B8 part 1 — multi-file modules: file = module, qualified by default (#210)
• docs section — MLE reference with run-in-sandbox snippets (#203)
• B6.5 — structured effect payloads (EffectValue) (#206)
• E1 — hello's glTF lineup + free-look camera, ported to MLE (#205)
• C4b-4 — the fog surface + examples/mle-atmosphere (#202)
• distance fog — a frame-level Fog value on every forward material (#201)
• generic type declarations — type Box, checker-only (#199)
• functor website + in-browser MLE sandbox (#198)
• D3b — go-to-definition (#196)
• B7 — Hindley–Milner inference with gradual seams (#197)
• Phase 3 — command effects (applyImpulse/applyForce/setVelocity/teleport) (#195)
• C4b-3 — the render-target surface + examples/mle-monitor (#194)
• D4 — live game preview in the editor, model-preserving reload in the browser (#192)
• Quest OpenXR runtime shell — cross-compiles + packages to APK (#189)
• render targets — named offscreen passes sampled as textures (#191)
• B6 — the minimal effect broker: Effect.* with real/fake/replay runners (#190)
• C5 — MLE games on wasm: the interpreter producer in the browser (#188)
• tuples — literals, patterns, destructuring let, product types (#187)
• 2b — collider wireframe overlay (--debug-render physics) (#186)
• network hot-reload for MLE — POST /reload-source + functor push (#183)
• B5 part 2 — stored closures rebind across hot reload (#184)
• launch hidden by default, visible: true escape hatch (#182)
• mle-physics — the reference physics example (Phase 2c) (#181)
• C4b-2 — the MVU pair: update/messages + subscriptions (#179)
• --hidden — capture/debug runs without stealing input (#178)
• Phase 2 — the MLE physics surface (Physics.* prelude + hook) (#176)
• --xreal-tracking — Xreal One 3DoF head tracking (#177)
• --stereo-sbs side-by-side stereo rendering in functor-runner (#175)
• B5 part 1 — variant types (ADTs) + match, through the whole stack (#174)
• branded Angle values — degree/radian confusion is unrepresentable (#173)
• 1b — the Simulatable/Timeline rewind seam (#172)
• C4b-1 — mouse input, the lit prelude, the primitives port (#171)
• 1a — world spine (rapier, declarative scene, reconcile, determinism goldens) (#170)
• C4a — input into the MLE model + functor.json wiring (#168)
• Escape releases the cursor; click recaptures (#169)
• C3 — hot reload with model preservation, e2e-proven (#167)
• C2 — the real MLE producer; delete the spike (#165)
• hover/quick-info + type diagnostics in the editor (D3a) (#164)
• record with updates + local let mut (non-capturable) (#163)
• B4 — gradual annotation-based typechecking, mle check (#161)
  ...