The challenge
A CiviCRM membership site that had to move to Joomla 6
WARMTH – the World Association of Radiopharmaceutical and Molecular Therapy – is a non-profit, founded in 2009, that promotes radionuclide therapy and theragnostics worldwide and organises the ICRT conference. Its Joomla site uses CiviCRM for membership applications, donations and the ICRT mailing list.
WARMTH was upgraded in the same project as NorCal CarciNET Community. CiviCRM’s Joomla package targets Joomla 5, so the site needed the same safe route to Joomla 6.
Goal: move to Joomla 6 without breaking CiviCRM, and without core changes that the next CiviCRM update would undo.
Our approach
Reuse the proven fix, then test every CiviCRM page
- Same CiviCRM Joomla 6 compatibility workExtensions and hooks built in this project – no CiviCRM core file modifications.
- Upgrade the site to Joomla 6Existing template kept, extensions updated and tested.
- Check membership & paymentsThe online membership application and the donation page are CiviCRM contribution pages, so both were tested after the upgrade.
- Check the mailing listThe CiviCRM subscription page for ICRT news keeps working.
- Test the CiviCRM update cycleCiviCRM updates were tested to make sure the compatibility changes persist.
Screenshots
CiviCRM pages on the new site
Membership
Membership types and online application.
Donations
CiviCRM contribution page.
ICRT mailing list
Subscription with email confirmation.
Home page
Existing template, now on Joomla 6.
Timeline
Key dates
Nov 2025InquiryTwo CiviCRM sites need Joomla 6.
Dec 2025Quote & kick-offScope agreed: CiviCRM on Joomla 6, then both sites upgraded.
Tech stack
What we worked with
Joomla 6
CiviCRM
DPCalendar
JCE Editor
Akeeba Backup
Phoca Download
