Title seems to be self explanatory, I can see ES5 there, but there are no versions above that one.
1 Answers
When searching for EcmaScript 8 or 7, you don't get any results because they simply had not added ES7 and ES8 in the database.
With a quick search in the issues we find that there are a couple of proposals, but so far they are not accepted.
According to this discussion we can understand they want to focus on specific features (e.g. async/await) rather than on versions.
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