Enhanced domains now work with sandboxes, offer redirects, and lend more secure login options. You can now log in with your Microsoft credentials, access and maintain consumer keys and consumer secrets more securely, and streamline your transition to using multi-factor authentication. Gather preference information consistently with reusable templates in Privacy Center. Salesforce Shield offers encryption and event tracking for more data and control over Transaction Security metering behavior. Use Security Center to create security-centric reports, and define security policies for all connected tenants (generally available). Private Connect support for AWS integrations is available in the EMEA and APAC regions. And remember to prepare inbound and outbound connections for the Private Connect network upgrade.
https://help.salesforce.com/s/articleView?id=release-notes.rn_security.htm&release=238&type=5