In case you missed it in the last release, Release Updates offers a more detailed view of information previously found in Critical Updates and Security Alerts. Find all of your updates and alerts in an improved format. No more clicking through several locations to review important update information for your Salesforce org.
Where: This change applies to Lightning Experience and Salesforce Classic in all editions, except Database.com.
How: From Setup, in the Quick Find box, enter Release Updates.
https://help.salesforce.com/s/articleView?id=release-notes.rn_ru_ga.htm&release=228&type=5