Changed default of GLFW_REFRESH_RATE.

Fixes #354.

README.md

@@ -70,6 +70,8 @@ GLFW bundles a number of dependencies in the `deps/` directory.
  - Added `GLFW_FLOATING` for creating always-on-top windowed mode windows
  - Added `GLFW_FOCUSED` window hint for controlling initial input focus
  - Added *partial and experimental* support for Wayland
+ - Changed the default of `GLFW_REFRESH_RATE` to `GLFW_DONT_CARE` to maintain
+   the default behavior
  - Bugfix: The debug context attribute was set from `GL_ARB_debug_output` even
            when a debug context had not been requested
  - Bugfix: The particles example was not linked against the threading library

docs/window.dox

@@ -304,7 +304,7 @@ Window hint                     | Default value               | Supported values
 `GLFW_ACCUM_ALPHA_BITS`         | 0                           | 0 to `INT_MAX` or `GLFW_DONT_CARE`
 `GLFW_AUX_BUFFERS`              | 0                           | 0 to `INT_MAX` or `GLFW_DONT_CARE`
 `GLFW_SAMPLES`                  | 0                           | 0 to `INT_MAX` or `GLFW_DONT_CARE`
-`GLFW_REFRESH_RATE`             | 0                           | 0 to `INT_MAX` or `GLFW_DONT_CARE`
+`GLFW_REFRESH_RATE`             | `GLFW_DONT_CARE`            | 0 to `INT_MAX` or `GLFW_DONT_CARE`
 `GLFW_STEREO`                   | `GL_FALSE`                  | `GL_TRUE` or `GL_FALSE`
 `GLFW_SRGB_CAPABLE`             | `GL_FALSE`                  | `GL_TRUE` or `GL_FALSE`
 `GLFW_DOUBLEBUFFER`             | `GL_TRUE`                   | `GL_TRUE` or `GL_FALSE`

src/window.c

@@ -290,6 +290,9 @@ void glfwDefaultWindowHints(void)
     _glfw.hints.focused     = GL_TRUE;
     _glfw.hints.autoIconify = GL_TRUE;
 
+    // The default is to select the highest available refresh rate
+    _glfw.hints.refreshRate = GLFW_DONT_CARE;
+
     // The default is 24 bits of color, 24 bits of depth and 8 bits of stencil,
     // double buffered
     _glfw.hints.redBits      = 8;