This update for opera fixes the following issues:
Update to version 73.0.3856.284
The update to chromium 87.0.4280.88 fixes following issues:
CVE-2020-16037, CVE-2020-16038, CVE-2020-16039, CVE-2020-16040,
CVE-2020-16041, CVE-2020-16042
Update to version 73.0.3856.257
Complete Opera 73.0 changelog at: https://blogs.opera.com/desktop/changelog-for-73/