ecmaVersion >= 2015

[mdjermanovic]

ref: eslint/eslint#15185 (comment)

eslint-scope expects 3, 5, 6, 7, ... 13 as ecmaVersion. Those are the values eslint-scope is currently getting from ESLint, and all eslint-scope tests are based on those values.

After we merge and release eslint/eslint#15185, ESLint will be passing 3, 5, 2015, 2016, ... 2022 as ecmaVersion to eslint-scope, regardless of the mode (eslintrc or flat config).

This should work the same as it was working before, because eslint-scope uses ecmaVersion only to check if it is >= 5, and >= 6:

eslint-scope/lib/scope-manager.js

Lines 80 to 82 in e57ffb0

	isStrictModeSupported() {
	return this.__options.ecmaVersion >= 5;
	}

eslint-scope/lib/scope-manager.js

Lines 248 to 250 in e57ffb0

	__isES6() {
	return this.__options.ecmaVersion >= 6;
	}

So, any of 6, 7, 8, 9, 10, 11, 12, 13, 2015, 2016, 2017, 2018, 2019, 2020, 2021, and 2022 will work the same, as they're all >= 5 and >= 6.

However, it would be good to add some tests with the new values, to confirm this behavior and make sure that it won't break after future changes to eslint-scope.