May 2021 web platform update

Now available in Chrome
Limited availability

@counter-style: The @counter-style CSS at-rule defines custom counter styles for list items. For example, you can use a sequence of specific symbols instead of numbers for an ordered list. Learn more.
JavaScript modules in service workers: The navigator.serviceWorker.register() method accepts { type: "module" } to load scripts that use import and export. Also known as ECMAScript modules or ESM in service workers. Learn more.
WebAssembly SIMD: The 128-bit SIMD (Single Instruction Multiple Data) extension to WebAssembly performs one instruction on multiple units of data, when running on hardware that supports such instructions. Also known as vector instructions. Learn more.

@counter-style: The @counter-style CSS at-rule defines custom counter styles for list items. For example, you can use a sequence of specific symbols instead of numbers for an ordered list. Learn more.
JavaScript modules in service workers: The navigator.serviceWorker.register() method accepts { type: "module" } to load scripts that use import and export. Also known as ECMAScript modules or ESM in service workers. Learn more.
WebAssembly SIMD: The 128-bit SIMD (Single Instruction Multiple Data) extension to WebAssembly performs one instruction on multiple units of data, when running on hardware that supports such instructions. Also known as vector instructions. Learn more.

@counter-style: The @counter-style CSS at-rule defines custom counter styles for list items. For example, you can use a sequence of specific symbols instead of numbers for an ordered list. Learn more.
JavaScript modules in service workers: The navigator.serviceWorker.register() method accepts { type: "module" } to load scripts that use import and export. Also known as ECMAScript modules or ESM in service workers. Learn more.
WebAssembly SIMD: The 128-bit SIMD (Single Instruction Multiple Data) extension to WebAssembly performs one instruction on multiple units of data, when running on hardware that supports such instructions. Also known as vector instructions. Learn more.