I have accidentally upgraded to cornerstone 3.4.6, which is the current version. I am using X version 6.4.6. I can see on the notes from the changelog that the current cornerstone version supported on X is 3.4.5.
Our site is extremely slow using 3.4.6, it took 2 minutes to save a 600 word blog post. Is there any way I can downgrade cornerstone (to 3.4.5)? It only looks like I can delete and then download the current version. Please let me know.