Roadmap

This roadmap outlines the current state and future plans for the A2UI project. The project is under active development, and priorities may shift based on community feedback and emerging use cases.

Current Status

Protocol

Version	Status	Notes
v0.8	✅ Stable	Initial public release
v0.9	🚧 In Progress	Draft specification improvements

Key features:

✅ Streaming JSONL message format
✅ Four core message types (surfaceUpdate, dataModelUpdate, beginRendering, deleteSurface)
✅ Adjacency list component model
✅ JSON Pointer-based data binding
✅ Separation of structure and state

Renderers

Client libraries	Status	Platform	Notes
Web Components (Lit)	✅ Stable	Web	Framework-agnostic, works anywhere
Angular	✅ Stable	Web	Full Angular integration
Flutter (GenUI SDK)	✅ Stable	Multi-platform	Works on mobile, web, desktop
React	🚧 In Progress	Web	Coming Q1 2026
SwiftUI	📋 Planned	iOS/macOS	Planned for Q2 2026
Jetpack Compose	📋 Planned	Android	Planned for Q2 2026
Vue	💡 Proposed	Web	Community interest
Svelte/Kit	💡 Proposed	Web	Community interest
ShadCN (React)	💡 Proposed	Web	Community interest

Transports

Transport	Status	Notes
A2A Protocol	✅ Complete	Native A2A transport
AG UI	✅ Complete	Day-zero compatibility
REST API	📋 Planned	Bidirectional communication
WebSockets	💡 Proposed	Bidirectional communication
SSE (Server-Sent Events)	💡 Proposed	Web streaming
MCP (Model Context Protocol)	💡 Proposed	Community interest

Agent UI toolkits

Agent UI toolkit	Status	Notes
CopilotKit	✅ Complete	Day-zero compatibility thanks to AG UI
Open AI ChatKit	💡 Proposed	Community interest
Vecel AI SDK UI	💡 Proposed	Community interest

Agent frameworks

Integration	Status	Notes
Any agent with A2A support	✅ Complete	Day-zero compatibility thanks to A2A protocol
ADK	📋 Planned	Still designing developer ergonomics, see samples
Genkit	💡 Proposed	Community interest
LangGraph	💡 Proposed	Community interest
CrewAI	💡 Proposed	Community interest
AG2	💡 Proposed	Community interest
Claude Agent SDK	💡 Proposed	Community interest
OpenAI Agent SDK	💡 Proposed	Community interest
Microsoft Agent Framework	💡 Proposed	Community interest
AWS Strands Agent SDK	💡 Proposed	Community interest

Recent Milestones

Q2 2025

Many research projects across multiple Google teams, including integration into internal products and agents.

Q4 2025

v0.8.0 spec released
A2A extension (thanks Google A2A team! teased at a2asummit.ai)
Flutter renderer (thanks Flutter team!)
Angular renderer (thanks Angular team!)
Web components (Lit) renderer (thanks Opal team & friends!)
AG UI / CopilotKit integration (thanks CopilotKit team!)
Github public release (Apache 2.0)

Upcoming Milestones

Q1 2026

A2UI v0.9

Release candidate for spec 0.9
Improve theming support for renderers (complete)
Improve server side theming support for agents (minimal)
Improve developer ergonomics

React Renderer

A native React renderer with hooks-based API and full TypeScript support.

React support for common widgets
React support for custom components
useA2UI hook for message handling
React support for theming

Q2 2026

Native Mobile Renderers

Native renderers for iOS and Android platforms.

SwiftUI Renderer (iOS/macOS):

Native SwiftUI components
iOS design language support
macOS compatibility

Jetpack Compose Renderer (Android):

Native Compose UI components
Material Design 3 support
Android platform integration

Performance Optimizations

Renderer performance benchmarks
Lazy loading for large component trees
Virtual scrolling for lists
Component memoization strategies

Q4 2026

Protocol v1.0

Finalize v1.0 of the protocol with:

Stability guarantees
Migration path from v0.9
Comprehensive test suite
Certification program for renderers

Long-Term Vision

Multi-Agent Coordination

Enhanced support for multiple agents contributing to the same UI:

Recommended agent composition patterns
Conflict resolution strategies
Shared surface management

Accessibility Features

First-class accessibility support:

ARIA attribute generation
Screen reader optimization
Keyboard navigation standards
Contrast and color guidance

Advanced UI Patterns

Support for more complex UI interactions:

Drag and drop
Gestures and animations
3D rendering
AR/VR interfaces (exploratory)

Ecosystem Growth

More framework integrations
Third-party component libraries
Agent marketplace integration
Enterprise features and support

Community Requests

Features requested by the community (in no particular order):

More renderer integrations: Map from your client library to A2UI
More agent frameworks: Map from your agent framework to A2UI
More transports: Map from your transport to A2UI
Community component library: Share custom components with the community
Community samples: Share custom samples with the community
Community evaluations: Generative UI evaluation scenarios and labeled datasets
Developer Ergonomics: If you can build a better A2UI experience, share it with the community

How to Influence the Roadmap

We welcome community input on priorities:

Vote on Issues: Give 👍 to GitHub issues you care about
Propose Features: Open a discussion on GitHub (search for existing discussions first)
Submit PRs: Build the features you need (search for existing PRs first)
Join Discussions: Share your use cases and requirements (search for existing discussions first)

Release Cycle

Major versions (1.0, 2.0): Annual or when significant breaking changes are needed
Minor versions (1.1, 1.2): Quarterly with new features
Patch versions (1.1.1, 1.1.2): As needed for bug fixes

Versioning Policy

A2UI follows Semantic Versioning:

MAJOR: Incompatible protocol changes
MINOR: Backward-compatible functionality additions
PATCH: Backward-compatible bug fixes

Get Involved

Want to contribute to the roadmap?

Propose features in GitHub Discussions
Build prototypes and share them with the community
Join the conversation on GitHub Issues

Stay Updated

Watch the GitHub repository for updates
Star the repo to show your support
Follow releases to get notified of new versions

Last Updated: December 2025

Have questions about the roadmap? Start a discussion on GitHub.