diff --git a/README.md b/README.md
index 4c18984..fa04579 100644
--- a/README.md
+++ b/README.md
@@ -92,7 +92,7 @@ release notes
 
 * added experimental support for **leds on your usb keyboard** — led updates are not yet reliable, and currently has bugs that can cause usb devices to stop responding
 
-### pcb rev B0 (????-??-??)
+### pcb rev B0 (2024-05-25)
 
 * this board **requires firmware 2.0** or newer
 * [#2](https://github.com/delan/usb3sun/issues/2) — fixed a limitation where the workstation **drops you into an ok prompt** when resetting the adapter