Is an upgrade available from CCleaner Professional to CCleaner Professional Plus?

[copycath]

Hi everyone

My apologies if this question has been asked before, couldn't find it. I have a license for CCleaner Professional (over a year old so updates no longer working)

and would like to change to CCleaner Professional Plus. Is there an upgrade available or do I need to purchase the full-priced license for the larger bundle?

Perhaps it makes sense to purchase the full-priced bundle anyway so that upgrades and support become available again? I have not migrated CCleaner to

my new computer yet so I am asking this before I re-download anything.

Thank you

Catherine