That's good to know. It's always good to keep current on the latest software version.
While the spam was coming hot and heavy, I researched the topic a bit. Older versions of phpbb were more vulnerable to the spambots so the new version should help. I read some postings on the phpbb forum which indicated that recaptcha has been conquered by one of the big spambot programs (Xrumer) and it is an inconvenience but does not stop them. I hope that the use of recaptcha stops the spambots but only time will tell. I just removed one spam message a few minutes ago, but that was probably posted by a human.
"Never give a flute player a screwdriver."