The IB has made significant revisions to the Theory of Knowledge curriculum. It has published a document titled “Theory of Knowledge Transition support document” that highlights the key changes in the new curriculum.
As TOK is currently transitioning between the older curriculum and the new curriculum (first assessment 2022) there are resources on this website for the both. When the November 2021 TOK cohort is done (the last group using the older curriculum) all of the resources on this website will be geared towards the new course.