The Mesa 17.1.0 3D Graphics Library was officially released last week with OpenGL 4.2 support for Intel Ivy Bridge GPUs, bringing the Intel i965 OpenGL driver on par with its Android, macOS, and Windows counterparts, as well as shader on-disk cache, and Khronos Vulkan CTS compliance for the Radeon RADV Vulkan driver. It usually takes a while until it lands in the stable software repositories of a supported Ubuntu release, as it is usually only implemented in the current development version, Ubuntu 17.10 (Artful Aardvark) in this case, but Canonical readied the Mesa 17.1.0 packages in their X-Updates PPA for Ubuntu 17.04 and 16.04 LTS users.