v1.0 (Original engine) v1.1 Multiple optimisations added v1.3 Quaternions added, along with matrix maths v1.3.5 Broken lines v1.4 Fixed lines v1.4.5 Switched to a QuickSort v1.5 Cleaned up v1.5.5 Fixed even more bugs, optimised even more v1.6.5 Added a proper skybox v1.7.5 Added pre-calculated directional lighting v1.8.5 Added object mesh transformation