overloading of dot and parenthesis operators should now be done in .experimental

compiler/semstmts.nim

@@ -1252,6 +1252,9 @@ proc semProcAux(c: PContext, n: PNode, kind: TSymKind,
     pushOwner(s)
   s.options = gOptions
   if sfOverriden in s.flags or s.name.s[0] == '=': semOverride(c, s, n)
+  if s.name.s[0] in {'.', '('}:
+    if s.name.s in [".", ".()", ".=", "()"] and not experimentalMode(c):
+      message(n.info, warnDeprecated, "overloaded '.' and '()' operators are now .experimental; " & s.name.s)
   if n.sons[bodyPos].kind != nkEmpty:
     # for DLL generation it is annoying to check for sfImportc!
     if sfBorrow in s.flags:

doc/manual/special_ops.txt

@@ -4,6 +4,9 @@ Special Operators
 dot operators
 -------------
 
+**Note**: Dot operators are still experimental and so need to be enabled
+via ``{.experimental.}``.
+
 Nim offers a special family of dot operators that can be used to
 intercept and rewrite proc call and field access attempts, referring
 to previously undeclared symbol names. They can be used to provide a

todo.txt

@@ -1,8 +1,6 @@
 version 1.0 battle plan
 =======================
 
-- overloading of `()` and ``.`` needs to be in .experimental
-- implement ``.delegate`` for .experimental
 - Deprecate ``immediate`` for templates and macros
 - fix generic multi-methods
 - fix "high priority" bugs
@@ -15,6 +13,7 @@ Not critical for 1.0
 - get GC:v2 stable: nim c --gc:v2 -r -d:useSysAssert -d:useGcAssert -d:smokeCycles -d:useRealtimeGc tests/gc/gctest
 
 - find a solution for the  x.f[T](y)  gotcha
+- implement ``.delegate`` for .experimental
 
 - Destructors need to be refined.
 - annotation support for getType()

web/news/version_0_15_released.rst

@@ -28,6 +28,8 @@ Changes affecting backwards compatibility
 
   See `https://github.com/nim-lang/Nim/issues/3898`_ for the relevant
   discussion.
+- Overloading the special operators ``.``, ``.()``, ``.=``, ``()`` now
+  should be enabled via ``{.experimental.}``.
 
 
 Library Additions