diff --git a/changelog b/changelog
index b0127c4..99a6072 100644
--- a/changelog
+++ b/changelog
@@ -133,4 +133,10 @@ Update: 10 July 2017
 - nicer intro readme ;p
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+Update: 16 July 2017
+
+-The BIOS patch works!
+For now it only supports Arduino boards (ATmega chips).
+Also, the Arduino must either be powered on first or have no bootloader present (flashed using SPI) since I expect a signal ~1 second after power on.
+8Mhz boards are also supported.