Recently Microsoft has released Configuration Manager update 1910 and It should take few weeks of time to reflect in the console. Until then we can either wait for the update to be globally available or we run the EnableEarlyUpdateRing 1910 script to enable fast ring for 1910 update package available in ConfigMgr Current Branch.
EnableEarlyUpdateRing 1910 script
Download the Powershell script from Technet . This script will allow us to enable fast Update-ring in ConfigMgr Current Branch.
On your SCCM server, run the PowerShell as administrator and run the script. Enter the site server name and script gets the update 1910 in console for you.
Before running the Script ,
After executing the Script , Configuration Manager update 1910 available to download in Console.