diff --git a/docs/CodingStandards.rst b/docs/CodingStandards.rst
index 529464aa284..a90e94b450c 100644
--- a/docs/CodingStandards.rst
+++ b/docs/CodingStandards.rst
@@ -108,6 +108,7 @@ unlikely to be supported by our host compilers.
 * Lambdas: N2927_
 
   * But *not* ``std::function``, until Clang implements `MSVC-compatible RTTI`_.
+  * And *not* lambdas with default arguments.
 
 * ``decltype``: N2343_
 * Nested closing right angle brackets: N1757_
@@ -116,6 +117,11 @@ unlikely to be supported by our host compilers.
 * Strongly-typed and forward declarable enums: N2347_, N2764_
 * Local and unnamed types as template arguments: N2657_
 * Range-based for-loop: N2930_
+
+  * But ``{}`` are required around inner ``do {} while()`` loops.  As a result,
+    ``{}`` are required around function-like macros inside range-based for
+    loops.
+
 * ``override`` and ``final``: N2928_, N3206_, N3272_
 * Atomic operations and the C++11 memory model: N2429_