Now Stable

"New on the Web": For a given set of browsers, what APIs became stable and when, ordered reverse chronologically.

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Browsers
Features

Stable APIs

Below is a list of features that are in Chrome, Firefox, Safari, Edge, Chrome Android, and Safari on iOS, ordered reverse chronologically by when they became stable (i.e, available in the last browser).

2024/12

API First Browser Date Last Browser Date Days Notes
webassembly.garbage-collection 📋Chrome10/31/2023 Safari on iOS12/11/2024407
webassembly.tail-calls 📋Chrome4/4/2023 Safari on iOS12/11/2024617

2024/9

API First Browser Date Last Browser Date Days Notes
webassembly.typedFunctionReferences 📋Chrome10/31/2023 Safari on iOS9/16/2024321

2024/3

API First Browser Date Last Browser Date Days Notes
webassembly.extended-constant-expressions 📋Firefox4/11/2023 Safari on iOS3/5/2024329

2023/3

API First Browser Date Last Browser Date Days Notes
webassembly.fixed-width-SIMD 📋Chrome5/25/2021 Safari on iOS3/27/2023671

2022/5

API First Browser Date Last Browser Date Days Notes
webassembly.api.Exception 📋Chrome10/19/2021 Firefox5/3/2022196
webassembly.api.Exception.Exception 📋Chrome10/19/2021 Firefox5/3/2022196
webassembly.api.Exception.Exception.options_parameter_traceStack Chrome10/19/2021 Firefox5/3/2022196
webassembly.api.Exception.getArg 📋Chrome10/19/2021 Firefox5/3/2022196
webassembly.api.Exception.is 📋Chrome10/19/2021 Firefox5/3/2022196
webassembly.api.Tag 📋Chrome10/19/2021 Firefox5/3/2022196
webassembly.api.Tag.Tag 📋Chrome10/19/2021 Firefox5/3/2022196
webassembly.exception-handling 📋Chrome10/19/2021 Firefox5/3/2022196

2021/12

API First Browser Date Last Browser Date Days Notes
webassembly.api.Memory.Memory.shared 📋Chrome4/23/2019 Safari on iOS12/13/2021965
Safari: Shared WebAssembly.Memory is gated behind COOP/COEP. For more detail, read Making your website "cross-origin isolated" using COOP and COEP.Safari on iOS: Shared WebAssembly.Memory is gated behind COOP/COEP. For more detail, read Making your website "cross-origin isolated" using COOP and COEP.WebView on iOS: Shared WebAssembly.Memory is gated behind COOP/COEP. For more detail, read Making your website "cross-origin isolated" using COOP and COEP.
webassembly.threads-and-atomics 📋Chrome4/23/2019 Safari on iOS12/13/2021965

2021/11

API First Browser Date Last Browser Date Days Notes
webassembly.reference-types 📋Firefox7/28/2020 Edge11/19/2021479

2021/10

API First Browser Date Last Browser Date Days Notes
webassembly.bulk-memory-operations 📋Chrome6/4/2019 Safari on iOS10/25/2021874
webassembly.non-trapping-float-to-int-conversions 📋Edge10/2/2018 Safari on iOS10/25/20211119

2021/9

API First Browser Date Last Browser Date Days Notes
webassembly.api.compileStreaming_static 📋Chrome9/5/2017 Safari on iOS9/20/20211476
webassembly.api.instantiateStreaming_static 📋Chrome9/5/2017 Safari on iOS9/20/20211476

2021/4

API First Browser Date Last Browser Date Days Notes
webassembly.BigInt-to-i64-integration 📋Firefox6/30/2020 Safari on iOS4/26/2021300
webassembly.sign-extension-operations 📋Chrome9/4/2018 Safari on iOS4/26/2021965

2020/10

API First Browser Date Last Browser Date Days Notes
webassembly.multi-value 📋Safari3/24/2020 Chrome Android10/20/2020210

2020/3

API First Browser Date Last Browser Date Days Notes
webassembly.api.Global 📋Chrome9/4/2018 Safari on iOS3/24/2020567
webassembly.api.Global.Global 📋Chrome9/4/2018 Safari on iOS3/24/2020567
Chrome: Constructing a Global with a value of v128 produces a TypeError.Chrome Android: Constructing a Global with a value of v128 produces a TypeError.Deno: Constructing a Global with a value of v128 produces a TypeError.Edge: Constructing a Global with a value of v128 produces a TypeError.Node.js: Constructing a Global with a value of v128 produces a TypeError.Quest Browser: Constructing a Global with a value of v128 produces a TypeError.Opera: Constructing a Global with a value of v128 produces a TypeError.Opera Android: Constructing a Global with a value of v128 produces a TypeError.Samsung Internet: Constructing a Global with a value of v128 produces a TypeError.WebView Android: Constructing a Global with a value of v128 produces a TypeError.
webassembly.api.Global.value 📋Chrome9/4/2018 Safari on iOS3/24/2020567
webassembly.api.Global.valueOf 📋Chrome9/4/2018 Safari on iOS3/24/2020567
webassembly.mutable-globals 📋Chrome9/4/2018 Safari on iOS3/24/2020567

2017/10

API First Browser Date Last Browser Date Days Notes
webassembly.api 📋Firefox3/7/2017 Edge10/17/2017224
webassembly.api.CompileError 📋Firefox3/7/2017 Edge10/17/2017224
webassembly.api.CompileError.CompileError 📋Firefox3/7/2017 Edge10/17/2017224
webassembly.api.Instance 📋Firefox3/7/2017 Edge10/17/2017224
webassembly.api.Instance.Instance 📋Firefox3/7/2017 Edge10/17/2017224
webassembly.api.Instance.exports 📋Firefox3/7/2017 Edge10/17/2017224
webassembly.api.LinkError 📋Firefox3/7/2017 Edge10/17/2017224
webassembly.api.LinkError.LinkError 📋Firefox3/7/2017 Edge10/17/2017224
webassembly.api.Memory 📋Firefox3/7/2017 Edge10/17/2017224
webassembly.api.Memory.Memory 📋Firefox3/7/2017 Edge10/17/2017224
webassembly.api.Memory.buffer 📋Firefox3/7/2017 Edge10/17/2017224
webassembly.api.Memory.grow 📋Firefox3/7/2017 Edge10/17/2017224
webassembly.api.Module 📋Firefox3/7/2017 Edge10/17/2017224
webassembly.api.Module.Module 📋Firefox3/7/2017 Edge10/17/2017224
webassembly.api.Module.customSections_static 📋Firefox3/7/2017 Edge10/17/2017224
webassembly.api.Module.exports_static 📋Firefox3/7/2017 Edge10/17/2017224
webassembly.api.Module.imports_static 📋Firefox3/7/2017 Edge10/17/2017224
webassembly.api.RuntimeError 📋Firefox3/7/2017 Edge10/17/2017224
webassembly.api.RuntimeError.RuntimeError 📋Firefox3/7/2017 Edge10/17/2017224
webassembly.api.Table 📋Firefox3/7/2017 Edge10/17/2017224
webassembly.api.Table.Table 📋Firefox3/7/2017 Edge10/17/2017224
webassembly.api.Table.get 📋Firefox3/7/2017 Edge10/17/2017224
webassembly.api.Table.grow 📋Firefox3/7/2017 Edge10/17/2017224
webassembly.api.Table.length 📋Firefox3/7/2017 Edge10/17/2017224
webassembly.api.Table.set 📋Firefox3/7/2017 Edge10/17/2017224
webassembly.api.compile_static 📋Firefox3/7/2017 Edge10/17/2017224
webassembly.api.instantiate_static 📋Firefox3/7/2017 Edge10/17/2017224
webassembly.api.validate_static 📋Firefox3/7/2017 Edge10/17/2017224