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This post demonstrates how to apply the latest CU( Cumulative Update ) on SQL server 2019.

1)Download the latest CU4( KB4548597 ) for SQL Server 2019 for Windows here.

2) Record the current SQL 2019 version.

3) Run “SQLServer2019-KB4548597-x64” as Administrator.

a) On “license Terms” page, choose “I accept the license terms and Privacy Statement”.

b) On “select features” page, select all the SQL server 2019 instances, shared features and all installed components.

c) On “Consent to install Microsoft R Open” page, click “Accept”.

d) On “Consent to install Python” page, click “Accept”.

e) On “Check Files in Use” page, stop all the services on the list, and click “refresh check” until no more processes listed.

f) On “Ready to update page” page, review the features list. click “Update” if everything is satisfied.

g) On “Update Process” page, monitor the patching process until it is complete.

Reboot the Windows Server if requested.

4) Verify the upgraded SQL 2019 version.