It was only reported that this update improves system stability and fixes an issue with charging the DualSense controller through the front ports while the console is in sleep mode.
A new PS5 system update has been released (20.02-2.26) and according to early reports.. it improves stability— Nibel (@Nibellion) November 25, 2020
(One discovered fix: apparently DualSense can be charged through the front USB now which didn't work for some people)https://t.co/PZlbWv1coH pic.twitter.com/2XOppqLgIY
The problem with the "Download Queue" was also solved. Previously, players were unable to download games because the screen only displayed the "Queued download" or "View details" option.
This is the second update since the release of the PlayStation 5. The first one came out not so long ago. By the way, it is not yet clear whether the console received the promised variable screen frequency or not.