In addition to OpenGL 4.5 & OpenGL ES.
The Khronos Group have confirmed that Nintendo’s upcoming Switch system will officially support their next generation Vulkan API, in addition to OpenGL 4.5 and OpenGL ES; the updates come to us via their official website, where the Switch is now listed as an official ‘conformant product’ for all three APIs (via WCCFTech).
Vulkan API support in particular should come in handy for developers- Switch will apparently see a major hit to its GPU clock speeds when it is undocked, which means developers will need access to all the power and juice that they can get. A low level, highly efficient API like Vulkan might just be what the doctor ordered in that case.
The Nintendo Switch is currently due to release worldwide in March 2017; exact details about the system, including specifications, a lineup of games for the launch and beyond, price, release date, and more, are currently unknown, but should be revealed come January 12, when Nintendo will be hosting an event to officially take the wraps off of Switch.