KNIME Update sites for 5.4 Changed?

. Our users, support team and I are getting notices that our update sites are not correct.

No repository found at

https://update.knime.com/analytics-platform/5.4.

https://update.knime.com/partner/5.4

update.knime.com/community-contributions/trusted/5.4

https://update.knime.com/community-contributions/trusted/5.4

It seems as if the URLS have changed - would anyone know what they have changed to?