Daniel Foré has announced the release of elementary OS 0.3.1, an updated build of the project's Ubuntu-based distribution featuring a custom desktop environment called "Pantheon": "After just a few months, we're excited to announce a major upgrade for elementary OS Freya. This new version 0.3.1 closes about 200 reports and brings new features, tons of fixes, better hardware support, visual polish, and enhanced translations. At the heart of this upgrade is the latest hardware enablement stack from Ubuntu 14.04.3. It includes version 3.19 of the Linux kernel and an updated Mesa that fixes the dreaded 'double cursor' glitch. Workspaces in the multitasking view also now work properly on NVIDIA Optimus. The new hardware stack also brings better support for backlights and touchpads on certain laptops, a host of performance and power-related improvements, and support for 5th generation Intel processors. This release should also improve support for (U)EFI systems, especially when installing without an Internet connection."