diff --git a/README.md b/README.md
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+++ b/README.md
@@ -6,6 +6,10 @@ This repository contains all of the design and production files necessary to mak
 
 What are you waiting for? Your new life awaits.
 
+## QMK?!
+
+As of November 13th, 2020, kits bought from the [Ploopy store](https://www.ploopy.co/shop/trackball/2) come with QMK preloaded. Check out the Wiki for instructions on how to load new firmware onto your device. (It's super easy!)
+
 ## Under what license is this released?
 
 The firmware is released under GPLv3. The hardware is released under OHL CERN v1.2. Check the respective directories for full license text.
diff --git a/firmware/README.md b/firmware/README.md
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+# Deprecation Notice
+
+As of November 13th, 2020, this firmware is considered DEPRECATED and should no longer be used.
+
+If you purchased an official Ploopy Kit and received a notice of shipment prior to November 13th, your kit includes this firmware. If your kit shipped after this date, it comes with [QMK](https://github.com/qmk/qmk_firmware).
+
+This firmware will still work with PCBs of version R1.005, and the firmware in [R1.004 branch](https://github.com/ploopyco/trackball/tree/r1.004) will still work with PCBs of version R1.004 and previous. But you really ought to switch to QMK. It's the shit.
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