Steam Sale Dates Revealed

The Steamworks Documentation Website confirms the dates of the upcoming Halloween, Autumn, and Winter Sales on Steam (thanks VG247). These sale dates frequently leak in advance, but this is the first time we recall them coming from an official source. Here's the schedule:
Steam Halloween Sale | Oct 28 - Nov 1, 2021
Join the Halloween Sale, with a special focus on content updates and in-game events in celebration of the theme. Resources for more information regarding the Halloween discount event and related promotional opportunities are now available. No registration required!

Steam Autumn Sale | Nov 24 - 30, 2021
Resources for more information regarding this Autumn discount event and Steam Awards nominations are coming soon. No registration required!

Steam Winter Sale | Dec 22, 2021 - Jan 5, 2022
Resources for more information regarding this Winter discount event and Steam Awards voting are coming soon. No registration required!