Thanks Jer,
We took out ArubaCare which is still current - I couldn't see where to register this, there doesn't seem to be a section on the Aruba pages and HPE doesn't recognise the contract number.
Mix of IAP-325 and IAP-205 here. I can see a folder for 6.5.3.11 on Conservative Release without logging in, but only the release notes. I take it being linked to a contract gives the newer versions?