Upgrade to 26.7 not offered, errormessage

[SchengFui]

Hi there,

coming from 26.1.11_10, the upgrade to 26.7 is not offered. Check for Updates results in following output:

***GOT REQUEST TO CHECK FOR UPDATES***
Currently running OPNsense 26.1.11_10 (amd64) at Tue Aug  4 09:00:43 CEST 2026
Fetching changelog information, please wait... /usr/local/opnsense/scripts/firmware/changelog.sh: tar: not found
Updating OPNsense repository catalogue...
Fetching meta.conf: . done
Fetching data.pkg: ......... done
Processing entries: .......... done
OPNsense repository update completed. 933 packages processed.
All repositories are up to date.
Checking for upgrades (0 candidates): . done
Processing candidates (0 candidates): . done
Checking integrity... done (0 conflicting)
Your packages are up to date.
***DONE***

i think the highlighted line points to the problem, but i dont know how to fix it.

system -updates - changelog gives no version-history, only: Check for updates to view changelog history.

please help me to fix this.

thank you