diff --git a/doc/index.rst b/doc/index.rst
index 57140d66..9480ff69 100644
--- a/doc/index.rst
+++ b/doc/index.rst
@@ -175,8 +175,9 @@ The library is highly portable and relies only on a small set of C++11 features:
 * decltype
 * trailing return types
 * deleted functions
+* alias templates
 
-These are available since GCC 4.4, Clang 2.9 and MSVC 18.0 (2013). For older
+These are available since GCC 4.8, Clang 3.0 and MSVC 19.0 (2015). For older
 compilers use fmt `version 4.x
 <https://github.com/fmtlib/fmt/releases/tag/4.1.0>`_ which continues to be
 maintained and only requires C++98.
diff --git a/include/fmt/core.h b/include/fmt/core.h
index 9e06a2d9..8df1f8aa 100644
--- a/include/fmt/core.h
+++ b/include/fmt/core.h
@@ -1306,16 +1306,9 @@ struct wformat_args : basic_format_args<wformat_context> {
       : basic_format_args<wformat_context>(std::forward<Args>(arg)...) {}
 };
 
-#ifndef FMT_USE_ALIAS_TEMPLATES
-#  define FMT_USE_ALIAS_TEMPLATES FMT_HAS_FEATURE(cxx_alias_templates)
-#endif
-#if FMT_USE_ALIAS_TEMPLATES
 /** String's character type. */
 template <typename S> using char_t = typename internal::char_t<S>::type;
-#  define FMT_CHAR(S) fmt::char_t<S>
-#else
-#  define FMT_CHAR(S) typename internal::char_t<S>::type
-#endif
+#define FMT_CHAR(S) fmt::char_t<S>
 
 namespace internal {
 template <typename Context>
diff --git a/support/appveyor.yml b/support/appveyor.yml
index af298cf7..525cbe0e 100644
--- a/support/appveyor.yml
+++ b/support/appveyor.yml
@@ -9,7 +9,6 @@ platform:
   - x64
 
 image:
-  - Visual Studio 2013
   - Visual Studio 2015
   - Visual Studio 2017