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WebAssembly
proposals
Python2018–2025
WebAssembly / proposals

proposals

Tracking WebAssembly proposals

39Distinct people
49Mentions
0Explicit recommenders
1.1KGitHub stars
REPOSITORY AT A GLANCE

What to know before exploring

What it is

Tracking WebAssembly proposals

GitHub

Where it is used

No documented product use was verified in the last source check.

What people are saying

No recommendation phrase was found in the indexed comments.

No classified warning is attached to this page. Read the discussions before treating silence as approval.

Also in these discussions

Mentioned in the same Hacker News threads. That is not proof they are substitutes.

This week on Hacker News

Nov 8–Nov 15 UTC · Direct repository links and separately labeled related project stories. Indexed through 11/15/2026, 12:03:30 PM UTC.

No direct repository links were found in the indexed HN discussions over the past seven days. Older discussions are available below.

Mentions over time

HN mentions by year49 dated mentions

Observed mentions: 2018-10-22 17:05:09 UTC to 2025-05-10 00:07:26 UTC.

0369122018-01-01 00:00:00 UTC to 2019-01-01 00:00:00 UTC (exclusive): 4 mentions; 1 submissions, 3 comments20182019-01-01 00:00:00 UTC to 2020-01-01 00:00:00 UTC (exclusive): 5 mentions; 0 submissions, 5 comments2020-01-01 00:00:00 UTC to 2021-01-01 00:00:00 UTC (exclusive): 8 mentions; 0 submissions, 8 comments2021-01-01 00:00:00 UTC to 2022-01-01 00:00:00 UTC (exclusive): 6 mentions; 0 submissions, 6 comments20212022-01-01 00:00:00 UTC to 2023-01-01 00:00:00 UTC (exclusive): 9 mentions; 0 submissions, 9 comments2023-01-01 00:00:00 UTC to 2024-01-01 00:00:00 UTC (exclusive): 11 mentions; 1 submissions, 10 comments2024-01-01 00:00:00 UTC to 2025-01-01 00:00:00 UTC (exclusive): 4 mentions; 0 submissions, 4 comments2025-01-01 00:00:00 UTC to 2026-01-01 00:00:00 UTC (exclusive): 2 mentions; 0 submissions, 2 comments2025

Counts come from the repository’s dated source evidence. Index cutoff: 2026-11-02 08:16:59 UTC.

View mention counts and date ranges
UTC ranges include their start and exclude their end. Select a period to filter the source evidence.
PeriodStart (UTC)End (exclusive, UTC)MentionsSubmissionsComments
20182018-01-01 00:00:00 UTC2019-01-01 00:00:00 UTC413
20192019-01-01 00:00:00 UTC2020-01-01 00:00:00 UTC505
20202020-01-01 00:00:00 UTC2021-01-01 00:00:00 UTC808
20212021-01-01 00:00:00 UTC2022-01-01 00:00:00 UTC606
20222022-01-01 00:00:00 UTC2023-01-01 00:00:00 UTC909
20232023-01-01 00:00:00 UTC2024-01-01 00:00:00 UTC11110
20242024-01-01 00:00:00 UTC2025-01-01 00:00:00 UTC404
20252025-01-01 00:00:00 UTC2026-01-01 00:00:00 UTC202

From the project README

An excerpt from the repository, fetched Nov 13, 2026.

Read the project’s introduction
WebAssembly proposals Finished Proposals Inactive Proposals Active proposals Proposals follow this process document. Phase 5 - The Feature is Standardized (WG) These proposals have not yet been merged to the spec. Merged proposals are listed in Finished Proposals. Proposal Champion JS Promise Integration Francis McCabe Web Content Security Policy Francis McCabe Phase 4 - Standardize the Feature (WG) Proposal Champion Threads Conrad Watt Compact Import Section Ryan Hunt Wide Arithmetic Alex Crichton and Jamey Sharp Phase 3 - Implementation Phase (CG + WG) Proposal Champion ESM Integration Asumu Takikawa, Ms2ger, and Guy Bedford Stack Switching Francis McCabe and Sam Lindley Custom Page Sizes Nick Fitzgerald Custom Descriptors and JS Interop Thomas Lively Phase 2 - Proposed Spec Text Available (CG + WG) Proposal Champion Relaxed dead code validation Conrad Watt and Ross Tate Numeric Values in WAT Data Segments Ezzat Chamudi Extended Name Section Ben Visness Rounding Variants Kloud Koder Compilation Hints Emanuel Ziegler JS Primitive Builtins Sébastien Doeraene Acquire-Release Atomics Conrad Watt and Rezvan Mahdavi Hezaveh Multibyte Array Access Brendan Dahl FP16 Brendan Dahl Phase 1 - Feature Proposal (CG) Proposal Champion Type Imports Andreas Rossberg Component Model Luke Wagner WebAssembly C and C++ API Andreas Rossberg Flexible Vectors Petr Penzin and Tal Garfinkel Memory control Deepti Gandluri and Ben Visness Reference-Typed Strings Andy Wingo Profiles Andreas Rossberg Shared-Everything Threads Andrew Brown, Conrad Watt, and Thomas Lively Frozen Values Léo Andrès and Pierre Chambart More Array Constructors Nick Fitzgerald JIT Interface Ben Titzer Type Reflection for WebAssembly JavaScript API Ilya Rezvov JS Text Encoding Builtins Daxpedda Phase 0 - Pre-Proposal (CG) Phase 0 proposals are tracked in the design repository issue tracker. Implementation status Implementation status of most proposals in various wasm engines is available on https://webassembly.org/features/ Contributing new proposals Please see Contributing to WebAssembly for the most up-to-date information on contributing proposals to standard.
Read the full README on GitHub

What Hacker News says

8 sources
It does feel like WebAssembly development has stalled after the initial release. There are proposals for reference types, garbage collection, and host bindings that would greatly expand a WebAssembly binary's capabilities, but they haven't been implemented in any browser, much less standardized yet. WebAssembly proposals tracker: https://github.com/WebAssembly/proposals WebAssembly reference types (https://github.com/WebAssembly/reference-types/blob/master/p...) looks like the blocker for a lot of things, and it's in the final spec phase at least. In Chrome, it's behind a flag since 78, which went stable in Oct 22 2019: https://chromestatus.com/features/5166497248837632 But also under active development? https://bugs.chromium.org/p/v8/issues/detail?id=7581 Supposedly implemented in Firefox two years ago: https://bugzilla.mozilla.org/sho
Read the rest
w_bug.cgi?id=1444925 Nothing in Safari, of course. Where is it now though?
In How WebAssembly Changes Software Distribution
V8, JVM, CLR and others are well proven runtimes providing a well functioning sandbox, but of course we test a lot. I am sure you know what the risks are with native code - you're a native code proponent after all; any code running in a medium and bigger company that could misplace money is a huge liability. I don't know what magic you're talking about - we're simply waiting for WASM to standardize GC, SIMD, tail calls etc, you can read more here[0]; and to get the execution optimized like V8 did over the past 10 years[1] (WASM on V8 gets most of these gains by default as a bonus). I already said why I want WASM: because it provides a good sandbox and opens most ecosystems through safe and typed interop. I don't care about ES modules in particular - I care about ES modules, Ruby modules, Python modules, Prolog modules, Fortran modules, C
Read the rest
modules, Rust modules, AssemblyScript modules, COBOL modules, Erlang modules, F# modules, Java modules, and so on - at once. Finally a future where I can use and trust any library and not get limited to the language I use (if I don't want to spend most of my time fighting and securing C ABI interop, if at all humanly possible) is there. [0] https://github.com/WebAssembly/proposals [1] https://v8.dev/blog/10-years#performance-ups-and-downs
In Rust for JavaScript Developers – Pattern Matching and Enums
I think the future is still hazy for managed languages, the GC side of Wasm is still in the design phase and it's not clear how widely it will be implemented. And it's been quiet for a long time, is the effor even alive? (https://github.com/WebAssembly/proposals/issues/16) If it's going to encompass the possibility to hook into the JS side GC engine, this might not be implemented at all in headless Wasm applications, and so you wouldn't be able to use the GC'd languages on those platforms, just C(++)/Rust. Which is not very attractive compared to the easier / safer high level languages most programmers are used to.
In WebAssembly brings extensibility to network proxies

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