Just got the e-mail and download link for Maintenance users. The e-mail listed these new features.

Here is a shortlist of some of the important new features included in Vue 2014:

• World Point Position (or XYZ) Pass: Vue 2014 adds a WPP pass to the extensive list of channels that Vue can generate for added compositing flexibility.
• Physically Accurate Sunlight Model and Photometric Lights: The new scientifically accurate photometric sunlight model uses a real-world, physical simulation of sun and atmospheric lighting intensities. You can now assign physically accurate values to all light properties, such as color temperature, light intensity (Lumens or Candelas) and IES Profiles.
• Tone Mapping: Vue 2014 lets you select different tone mapping filters to specify how raw HDR colors are transformed into the final picture. These filters typically simulate the response of the human eye or chemical photographic film.
• Natural Grain: This new mode produces natural color variations particularly well suited for terrains, ground, or any natural elements. Ideal for quick results, the Natural Grain option provides high level access to settings such as contrast, balance and roughness, directly from the Material Editor.
• EcoSystem improvements: EcoSystem Clumping replicates the natural phenomenon where plants grow close together rather than evenly distributed. Vue 2014 features highly optimized algorithms to accelerate the rendering of EcoSystems containing many small items, such as gravel or grass blades.
• Improved Plant Factory compatibility: Health, Seasonality or any other published plant parameters can be animated directly inside the Vue timeline. When using Plant Factory plants in EcoSystems, a new Quality setting is available in the Population list to define the amount of detail of the plant instances, thus saving memory and reducing render times.
• Interface improvements: The Vue 2014 Function Editor was redesigned for improved performance on modern computer displays. A new option is available that protects the render camera from any unwanted modifications and automatically switches to perspective view whenever the viewport is modified. Vue 2014 can position the sun exactly as it would be in real-life, based on time of day, date and location on Earth.
• Many other improvements such as Foldable EcoPainter, highly optimized flat Area Lights, names in Render Stack, improved material manipulation, and more...