Sorry I missed all this

I hope it should update itself without issues but nothing in life is guaranteed !
Note the contrib remains with the same name... it just handles creating configs.
It should remove the letsencrypt.sh rpm and install the dehydrated rpm.
There may be residual dirs left e.g. /etc/letsencrpt.sh
If you have any issues you can always revert to the self signed certs by removing the modSSL keys and starting again. I think I mention this on the wiki page.
Please let me know if there are any issues. I can't guantee instant response but will get to it when I can.
B. Rgds
John