--- a/Parser.st	Wed Aug 24 17:33:22 2016 +0200
+++ b/Parser.st	Thu Aug 25 17:41:15 2016 +0200
@@ -8561,6 +8561,8 @@
 typedArray:typeSymbol
     "parse a typed array's elements.
      This is an ST/X extension, which is not supported by other Smalltalk implementations.
+     For now, the support is disabled; enable with:
+        ParserFlags allowSTXExtendedArrayLiterals:true
      Typed literal arrays are written in scheme-style as:
         #u8( element... )   - unsigned 8-bit bytes (i.e. a regular ByteArray)
         #u16( element... )  - unsigned 16-bit shorts (i.e. a WordArray)