Hmm… I’m not sure why you’re seeing that. Can you open the rails console and get the output of DiscourseUpdates.check_version.as_json for me?
root@dfp-neil:~$ cd /var/discourse/
root@dfp-neil:/var/discourse$ ./launcher enter app
root@dfp-neil-app:/$ rails c
[1] pry(main)> DiscourseUpdates.check_version.as_json
=> {"latest_version"=>"1.5.0.beta1", "critical_updates"=>false, "installed_version"=>"1.5.0.beta1", "installed_sha"=>"ecd93f7efb98c41e79077d025c2215c98f1c912d", "installed_describe"=>"v1.5.0.beta1 +121\n", "missing_versions_count"=>0, "updated_at"=>"2015-09-29T15:40:47.449Z"}
[2] pry(main)>
That command will show the result of the last check for updates.