fix(typescript-estree): mark TS 3.8 and 3.9 as "supported" (typescript-eslint#2057)

bradzacher · web-flow · commit 5eedbff01178 · 2020-05-21T15:21:46.000-07:00
3.8 isn't truly supported yet (typescript-eslint#1436), but it will work fine - just can't lint private fields. We _want_ people to upgrade as 3.9 is much better and faster! So this increases the version range so 3.8 and 3.9 will stop logging the unsupported warning. typescript-eslint#1436 is pinned in our issues, so that's about as good as we can do.
diff --git a/packages/typescript-estree/src/parser.ts b/packages/typescript-estree/src/parser.ts
@@ -20,7 +20,7 @@ const log = debug('typescript-eslint:typescript-estree:parser');
  * This needs to be kept in sync with the top-level README.md in the
  * typescript-eslint monorepo
  */
-const SUPPORTED_TYPESCRIPT_VERSIONS = '>=3.3.1 <3.8.0';
+const SUPPORTED_TYPESCRIPT_VERSIONS = '>=3.3.1 <3.10.0';
 /*
  * The semver package will ignore prerelease ranges, and we don't want to explicitly document every one
  * List them all separately here, so we can automatically create the full string
