Update compilation-related parts of README

README.md

@@ -47,18 +47,19 @@ features or fixing bugs.
 
 ## Compiling GLFW
 
-GLFW itself requires only the headers and libraries for your OS and window
-system.  It does not need the headers for any context creation API (WGL, GLX,
-EGL, NSGL, OSMesa) or rendering API (OpenGL, OpenGL ES, Vulkan) to enable
-support for them.
+GLFW is written primarily in C99, with parts of macOS support being written in
+Objective-C.  GLFW itself requires only the headers and libraries for your OS
+and window system.  It does not need any additional headers for context creation
+APIs (WGL, GLX, EGL, NSGL, OSMesa) or rendering APIs (OpenGL, OpenGL ES, Vulkan)
+to enable support for them.
 
-GLFW supports compilation on Windows with Visual C++ 2010 and later, MinGW and
+GLFW supports compilation on Windows with Visual C++ 2013 and later, MinGW and
 MinGW-w64, on macOS with Clang and on Linux and other Unix-like systems with GCC
 and Clang.  It will likely compile in other environments as well, but this is
 not regularly tested.
 
-There are [pre-compiled Windows binaries](https://www.glfw.org/download.html)
-available for all supported compilers.
+There are [pre-compiled binaries](https://www.glfw.org/download.html) available
+for all supported compilers on Windows and macOS.
 
 See the [compilation guide](https://www.glfw.org/docs/latest/compile.html) for
 more information about how to compile GLFW yourself.
@@ -79,8 +80,6 @@ more information.
 
 ## System requirements
 
-GLFW is written in C99 and does not support Visual Studio 2012 or earlier.
-
 GLFW supports Windows XP and later and macOS 10.8 and later.  Linux and other
 Unix-like systems running the X Window System are supported even without
 a desktop environment or modern extensions, although some features require