What’s new in NeoStack.

Fab installs of NeoStack now ship as source only — Fab rejects the agent runtime binaries — so the plugin downloads a signed copy once on first use, then chat works as usual. Binary installs that already bundle the runtime are unchanged.

Native chat gets back the status cues that disappeared when the old chat UI retired, plus fixes for stuck prompts, missing history on Unreal Engine 5.5, and scripts that could lock the editor until you restarted.

Two big leaps for in-editor agents: they keep working through an editor crash or restart, and game-testing agents can survey the live world, film a playtest timeline, and drive UMG and Slate UI — not just fire keys and hope.

NeoStack 4.0 rebuilds the in-editor agent as a native Unreal panel — faster, multilingual, and ready for UE 5.8 worldbuilding — instead of an embedded browser page.

Desktop and the Unreal plugin can share the same agent workspace without blocking each other, with cleaner Stop behavior and Claude goal controls to match.

Restores the plugin across Unreal Engine 5.5 through 5.8 — recent agent tooling had leaned on engine APIs that only exist on newer versions, which broke builds and some workflows on older engines.

Remote control from mobile and web is finally trustworthy in the editor — and agents can finish a much wider set of Unreal workflows without silent half-applied edits.

A remote-control reliability release — chats you start or watch from another machine either run, or tell you exactly why they stalled and how to recover. No more silent hangs, empty failure triangles, or rows you cannot unstick.

Source-built Unreal engines need the desktop installer to patch the plugin’s BuildId. That installer is now on the paywall for every signed-in user — not only lifetime plugin owners.

Agents verifying gameplay in Play-in-Editor can now see the composed player view — HUD included — and packaged-build recording is no longer shipped with the plugin.

Playtest now runs inside the Unreal tab — you see and drive the live stream without leaving NeoStack, and a linked editor shows its viewport even when nothing is streaming yet.

Blueprint graphs the agent builds now land readable instead of spaghetti — laid out from the finished wiring, with real node sizes and the nodes you already placed left alone.

Blueprint graphs authored by the agent are no longer a pile of nodes at the origin — new nodes without explicit coordinates are laid out from their wiring when the script finishes.

The in-editor agent now runs on the same shared runtime as NeoStack Desktop — chat resume, per-chat controls, and the agent interaction surfaces you expect on desktop finally land in the Unreal panel.

The status bar now shows where the active chat is working — including when the agent has moved itself into a worktree.

Source control can sign you in from the desktop, so you find out before a push fails, and fix it without opening a terminal.

A reliability release for starting agent chats, NeoStack now owns how agent packages are installed, so a bad cache can no longer leave you unable to talk to your agent.

Source control lands in the desktop app — see your working copy, send work to the team, review pull requests, and browse hosted repositories without leaving the place you chat with agents.

You and your agent share the same browser, watch what it's doing, take the wheel when you need to, and hand control back without fighting over the page.

An in-app Browser you and your agent share, open pages, click around, and let the agent drive the same tabs you see.

A composer-focused release, park drafts, recall past prompts, and queue follow-ups while the agent is still working.

See how much Claude and Codex subscription quota you have left, every window, from one hover in the account menu.

A big polish pass on agent chat, clearer receipts, smoother streaming, and the everyday composer shortcuts you expect when talking to an agent that builds your Unreal project.

Agent settings, model, speed, and approvals, now stick to the chat you set them on. A cluster of bugs that reset Claude chats and swallowed dropdown clicks is gone.

Titles stay put, messages you send mid-turn go through, and background agent work no longer looks like the chat is still answering.

Approvals and agent questions now take the composer's place, one at a time, keyboard-first, so you can keep answering without hunting through the transcript or reaching for the mouse.

Large pastes no longer flood the composer, and long permission prompts keep Allow and Deny on screen where you can reach them.

Scrolling a chat with a trackpad no longer quits the app, a crash that hit every macOS trackpad scroll in 3.1.28 through 3.1.30.

Long chats and live streaming answers scroll smoothly again, the hitching that came and went depending on what was on screen is gone.

Agents can pause mid-turn to ask you a real question and when they spin up helpers or background work, you can see what they’re doing instead of a bare count.

A quieter desktop that stays out of your way when idle, updates announce themselves in the sidebar, and you control whether usage and crash data are shared.

A large polish pass on the everyday loop — hand the agent work and walk away, come back to the same desk, and drive the app from the keyboard instead of hunting for clicks.

Linux builds can open a window again — the app was shipping without a display backend and dying the moment it tried to start.

Opening the app with no agent selected used to land on a dead end — a No agent selected screen and a bottom composer that quietly ignored whatever you typed. That empty pane is now the New Agent draft itself.

A workspace redesign: the right panel is yours to compose, Unreal Preview is play-first, and a status bar keeps connection, builds, and playtests in view.

Remote multiplayer playtests from the NeoStack desktop — each PIE player streams on its own Pixel Streaming feed, so guests join from shareable links instead of crowding one machine.

Agents can now drive the desktop app itself — builds, the Unreal editor, and multiplayer playtests — and hand you a playable guest link per player.

Expands what ships: Unreal Engine 5.5 on Windows, and macOS builds again for UE 5.7 and 5.8.

The editor got better at reading documents and keeping you oriented — Word previews, a markdown/HTML Preview toggle, Find in the current file from anywhere, and the project tree follows the tab you're on.

On Windows and Linux, the title-bar menus are redrawn to match NeoStack itself — quiet pills, the same compact popovers as the rest of the chrome, and a clean column aligned with the sidebar.

Windows and Linux get a title-bar menu that finally looks like NeoStack — quiet chrome that matches the rest of the app, and stays put when you tuck the sidebar away.

Voice dictation

Talk to your agent instead of typing. Dictation streams through NeoStack Cloud on your plan — nothing extra to set up.

Claude Desktop, Claude Code, and Codex reconnect to your editor

NeoStack 3.0 secured the in-editor MCP server behind an auth token — which broke the hand-edited localhost configs external clients used in 2.x. The new NeoStack Bridge restores them properly.

A reliability release for chat on the go — focused on messages surviving bad networks, app switches, and mid-send interruptions.

The first desktop release with published notes — a large quality pass across projects, chats, and project creation.

Brings 3.1.6 to Unreal Engine 5.6 and 5.7 — that release initially shipped for 5.8 only.

Shipped for UE 5.8; 5.6 and 5.7 builds arrive in 3.1.7.

NeoStack 3.0 — a new platform, not a version bump

The new NeoStack is live. NeoStack 3.0 runs on NeoStack Cloud: one account, one backend, and your agent sessions everywhere — starting with the in-editor agent, with the same live session following you to the web dashboard. Desktop and mobile are next.