Yes. Opening Hours PRO ships as a single download that runs on Joomla 4, Joomla 5 and Joomla 6. The module follows Joomla's namespacing and service provider patterns, so an update to the next major Joomla version is just a regular extension update for you.

Older versions for Joomla 3 are still available in the customer area for legacy sites, but they no longer receive feature updates.

Yes, that is the entire point. One PRO license covers unlimited installations. Build for ten clients, install on ten sites, get updates on all of them. There is no domain registration, no machine ID check and no email when you migrate a site to a new server.

This is why agencies and freelancers tend to skip the single PRO and go straight for the Bundle: the same logic applies to every other extension in it.

No. When you add an exception (Christmas Day, King's Day, New Year), you can tick the Recurring option. From then on the module applies the exception every year on the same date, automatically, until you remove it.

For non-recurring closures (a one-off company outing, a renovation week) you leave the option off and the exception expires after that day.

Check if you find an answer in the documentation first or send me a question

The module keeps working. Forever. PRO is not a SaaS, there is no kill switch. After 12 months you simply stop receiving new versions and email support unless you renew.

Renewals are 75% of the original price as a thank-you for sticking around.