Veeva CRM Sandboxes are being upgraded to the 19R3 Sandbox release on Friday, December 6. Systems are available during this time.
Information and release notes regarding this release can be found in the About the 19R3 Release page.
Production orgs are being upgraded to Veeva CRM 19R3 on Friday, January 10.
Note: If your sandbox org is refreshed before the production upgrade, your sandbox org reverts to the Veeva CRM 19R2 release.