A brief history of scroll snapping specification and releases by various browsers.
As of August 2018: Edge (IE) and Firefox ship the old deprecated spec, Safari and Chrome (starting from v69) ship the current CR spec.
|Oct 2013 - Nov 2015||WD||css-snappoints||Point based||IE10+11, Edge, Firefox OS (unprefixed)||
||IE blog post, Mozilla intent||20150326|
|Nov 2015 - Mar 2016||WD||css-snappoints||Point based||IE10+11, Edge, Firefox, Safari iOS 10.3 (prefixed)||
||WG was planning major changes to spec. WebKit blog post, MDN||20150326|
|Mar 2016 - Dec 2016||WD->CR||css-scrollsnap||Element based||Safari 11+||
||Safari removed the old prefixed API||20160329, 20170824|
|Dec 2017 - current||CR||css-scrollsnap||Element based||Chrome 69+||
||Chrome blog post||scroll-snap-1|
scroll-snap-stop is specifed but not yet implemented by any browser. It is considered at-risk.