Bottles 66.0, a Wine prefix management application, was released today, August 12, 2026. This update introduces several new features including UMU, ProtoSoda, and Adaptive Launch, alongside an experimental official cpak package for simplified distribution. A key fix in this release involves the synchronization of libvkd3d-utils for Proton 11. Developer alairon noted this fix "sync[s] libvkd3d-utils for Proton 11," which is crucial for maintaining compatibility with Proton's Direct3D 12 translation layer. The update also addresses vkd3d dependency synchronization and expands cabinet source wildcards, aiming to enhance game compatibility and streamline application management within Bottles environments.