Vulkan 1.4.337 was released today, December 19, 2025. This update introduces two new extensions to the API specification. Developers can now utilize VK_EXT_texture_compression_astc_3d, which provides support for 3D Adaptive Scalable Texture Compression (ASTC), enhancing texture capabilities. Additionally, the VK_EXT_shader_long_vector extension is included, offering new functionality for shader development. Phoronix reported that this release "could be the last Vulkan API spec update of 2025." This update provides new tools for graphics developers using the Vulkan API.