The form-feed character '\f' is no longer valid white space.

releasenotes.md

@@ -20,6 +20,7 @@
 - Make `$echo` and `@sprintf` correctly stringify compile time initializers and slices.
 - Add `--sources` build option to add additional files to compile. #2097
 - Support untyped second argument for operator overloading.
+- The form-feed character '\f' is no longer valid white space.
 
 ### Fixes
 - `-2147483648`, MIN literals work correctly.

src/compiler/lexer.c

@@ -273,7 +273,6 @@ static void skip_whitespace(Lexer *lexer)
 				FALLTHROUGH;
 			case ' ':
 			case '\t':
-			case '\f':
 				next(lexer);
 				break;
 			case '\r':