X3D version 4.0 was approved by Web3D Consortium and ISO in 2023.[/X3D, diagnostic] X3D version 4.0 offers many new features including interoperability with HTML5, glTF 2.0 Physically Based Rendering (PBR), and Web Audio API.[/X3D, diagnostic] <meta name='TODO' content='multiliingual translation parameter'/> [/X3D/head/meta[19], diagnostic] <meta name='warning' content='under development, scene Sound/AudioClip triggering (or retrieved file format) not working'/> [/X3D/head/meta[22], diagnostic] <meta name='warning' content='TODO resolve potential error in Script node TextScript: parse problem line 15 " var strategy = [];'/> [/X3D/head/meta[23], diagnostic]