@David, after upgrading from 7.7.0 to 8.0.0.dev0, sentry health api &#x2F;_health&#x2F;?full=1 reports
{&quot;healthy&quot;:{&quot;CeleryAppVersionCheck&quot;:false,&quot;CeleryAliveCheck&quot;:false},&quot;problems&quot;:[&quot;Background workers haven&#x27;t checked in recently. This can mean an issue with your configuration or a serious backlog in tasks.&quot;,&quot;Celery workers are referencing a different version of Sentry (8.0.0.dev0 vs 7.7.0)&quot;]}<p>and the website has two red bars for these warning, but the reporting mechanism seems work well, and there are no warning&#x2F;error records in logs.<p>Do these warnings have serious problem? how can I fix these warnings? (I&#x27;ve totally removed old sentry files in &#x2F;usr&#x2F;local&#x2F;lib&#x2F;python2.7&#x2F;site-packages&#x2F;sentry* and made a fresh installation)<p>Thanks!