Dell Technical Update Notifications are a great way to get information about releases when they become public.
Subscribe for Email notifications
Finally, the Repository Manager is a tool for updating your Dell Server with Drivers and Firmware.
The tool can poll the Dell Web site for up to the minute updates that have been added to the site.
Repository Manager information is available here: Dell Repository Manager
A lot of information about drivers and firmware is available on the Dell Support Site under the Drivers & Downloads section: https://www.dell.com/support/home?app=drivers
Additional information about the Dell Systems Management tools is available at the following Dell sites:
How to configure iDRAC and System Management Options on PowerEdge Servers
Dell Community Site (Community page in English)
Dell SupportAssist is provided free to help diagnosis issues with your Dell EMC equipment. There are solutions for all ranges for customers from enterprise to the home use. Secure Connect Gateway has been introduced to replace SupportAssist. It allows your Dell products to report their status and possible issues back to Dell, which can trigger Service Requests and actions automatically.