Good news on the update front. Brent and I (Tom) have finally gotten close to releasing an alpha verstion of Proclaim. It'll be version 10 and will work with Joomla 4 and 5. You'll be able to update your Joomla 3.x site to Joomla 4 or 5 then install the new Proclaim right over the top.
We apologize for how long this has taken. Joomla made so many changes to their code that we literally had to re-code nearly every line of this very complex component.
The wait will be worth it. We are introducing a new Simple Mode which we think will revolutionize the use of Proclaim - and make it more visual.
Please be patient with us as we work out some final bugs. We will release the alpha version for you to try and provide feedback.