Hi there,
I get "Checksum verification failed" note when I try to update from version 10.3.3 to version 10.3.4.
Install of downloaded ZIP file of 10.3.4 works fine, but not the update procedere...
Best Regards
Gerd
#42992 Checksum verification failed (update from 10.3.3 to 10.3.4)
Posted in ‘Akeeba Backup for Joomla!’
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Environment Information
Joomla! version
6.1.1
PHP version
8.5
Akeeba Backup version
10.3.3
Latest post by nicholas on Monday, 01 June 2026 08:55 CDT
Monday, 01 June 2026 05:39 CDT
gebro
Monday, 01 June 2026 06:12 CDT
nicholas
Akeeba Staff
Manager
I uploaded the ZIP file twice since the first attempt did not build the right ZIP file. Every time I do that, it updates the checksum in the XML update file. It looks like your site picked up the XML update file in the short period of time (about 10 minutes) between the original and the second upload, hence the problem.
Go to System, Update, Extensions and click on Check For Updates. This clears the internal Joomla cache and fetches the update information afresh. Joomla should now see the new update XML file with the correct checksum.
Nicholas K. Dionysopoulos
Lead Developer and Director
🇬🇷Greek: native 🇬🇧English: excellent 🇫🇷French: basic • 🕐 My time zone is Europe / Athens
Please keep in mind my timezone and cultural differences when reading my replies. Thank you!
Monday, 01 June 2026 08:03 CDT
gebro
I tried several times (15:04 h MEZ) , incl. deleting CACHE. But still same problem.
Monday, 01 June 2026 08:08 CDT
nicholas
Akeeba Staff
Manager
Try again now. It looks like the CDN cache was stuck on the older file. I just cleared it and manually confirmed it returns the XML update file with the correct checksum.
Nicholas K. Dionysopoulos
Lead Developer and Director
🇬🇷Greek: native 🇬🇧English: excellent 🇫🇷French: basic • 🕐 My time zone is Europe / Athens
Please keep in mind my timezone and cultural differences when reading my replies. Thank you!
Monday, 01 June 2026 08:34 CDT
gebro
Thank you - not it works fine and I go on with my other websites/projects.
Greetings to sunny Greece :-)
Best Regards, Gerd.
Monday, 01 June 2026 08:55 CDT
nicholas
Akeeba Staff
Manager
You're welcome! Have a fantastic day!
Nicholas K. Dionysopoulos
Lead Developer and Director
🇬🇷Greek: native 🇬🇧English: excellent 🇫🇷French: basic • 🕐 My time zone is Europe / Athens
Please keep in mind my timezone and cultural differences when reading my replies. Thank you!