I updated my VSCode and upon restart it showed me what looks to be a what's new page. I skimmed and then closed it. After a bit I realized that I wanted to reread something there again. I tried to use Alt-Left to go back, but that window isn't in the go back/forth entries. I've tried to look to find any command that would redisplay it again, to no avail.
How do I bring back that tab of information?
You can open them from the main menu under Help -> Release Notes or by running the Code: Show Release Notes command.