<li>Added <code>glfwSetWindowFocusCallback</code> function and <code>GLFWwindowfocusfun</code> type for receiving window focus events</li>
<li>Added <code>glfwSetWindowIconifyCallback</code> function and <code>GLFWwindowiconifyfun</code> type for receiving window iconification events</li>
<li>Added <code>glfwGetCurrentContext</code> function for retrieving the window whose OpenGL context is current</li>
<li>Added <code>GLFWallocator</code> type and <code>glfwInit</code> parameter for pluggable memory allocator</li>
<li>Added <code>glfwCopyContext</code> function for copying OpenGL state categories between contexts</li>
<li>Added <code>GLFW_OPENGL_ES2_PROFILE</code> profile for creating OpenGL ES 2.0 contexts using the <code>GLX_EXT_create_context_es2_profile</code> and <code>WGL_EXT_create_context_es2_profile</code> extensions</li>
<li>Added <code>GLFW_OPENGL_ROBUSTNESS</code> window hint and associated strategy tokens for <code>GL_ARB_robustness</code> support</li>