Kontakt 6 was the first version to introduce VST3 support officially, and updates like 6.7.1 refined this.
Kontakt 6.7.1 is optimized to run the Play Series libraries (like "Analog Dreams," "Ethereal Earth," etc.). These are stripped-back, easy-to-use libraries designed specifically for quick sound design, unlike the massive orchestral libraries that require the full Kontakt engine.
Kontakt is a powerful software sampler that enables musicians, producers, and sound designers to create and play virtual instruments. It's widely used in music production, post-production, and live performance.
While I provide an overview of Kontakt 6, keep in mind that the exact features might slightly vary based on the version and any additional libraries or expansions that come with it.