Since Elm compiles to JavaScript, all the new development features from JavaScript, HTML, and CSS are also instantly available in Elm. I.e. it's not necessary to change Elm all the time to keep it up to date with the web platform. For non-stop Elm content check out all the communities at https://elm-lang.org/community
It may not be dead, but it does seem a bit stagnant. Based on Google Trends at least (https://trends.google.com/trends/explore?date=today%205-y&ge...), Elm has the same general interest level as it did five years ago (despite going up a bit in-between).
Since Elm compiles to JavaScript, all the new development features from JavaScript, HTML, and CSS are also instantly available in Elm. I.e. it's not necessary to change Elm all the time to keep it up to date with the web platform. For non-stop Elm content check out all the communities at https://elm-lang.org/community