WebAssembly proposals

• Finished Proposals
• Inactive Proposals

Active proposals

Proposals follow this process document.

Phase 4 - Standardize the Feature (WG)

Proposal	Champion

Phase 3 - Implementation Phase (CG + WG)

Proposal	Champion
Reference Types	Andreas Rossberg
Tail call	Andreas Rossberg
Bulk memory operations	Ben Smith
JavaScript BigInt to WebAssembly i64 integration	Dan Ehrenberg & Sven Sauleau
Fixed-width SIMD	Deepti Gandluri and Arun Purushan
Multiple memories	Andreas Rossberg
Custom Annotation Syntax in the Text Format	Andreas Rossberg

Phase 2 - Proposed Spec Text Available (CG + WG)

Proposal	Champion
Threads	Ben Smith
ECMAScript module integration	Lin Clark & Daniel Ehrenberg
Exception handling	Heejin Ahn
Type Reflection for WebAssembly JavaScript API	Till Schneidereit

Phase 1 - Feature Proposal (CG)

Proposal	Champion
Type Imports	Andreas Rossberg
Garbage collection	Andreas Rossberg
Interface Types	Luke Wagner and Francis McCabe
WebAssembly C and C++ API	Andreas Rossberg
Typed Function References	Andreas Rossberg
Conditional Sections	Thomas Lively
Extended Name Section	Andrew Scheidecker
Memory64	Ben Smith

Phase 0 - Pre-Proposal (CG)

Proposal	Champion
Web Content Security Policy	Ben Titzer
Funclets: Flexible Intraprocedural Control Flow	Dan Gohman
Module Types	Luke Wagner and Andreas Rossberg
Constant Time	John Renner, Hovav Shacham, Deian Stefan, Conrad Watt

Contributing new proposals

Please see Contributing to WebAssembly for the most up-to-date information on contributing proposals to standard.