diff --git a/notes.md b/notes.md
index e2921e4..4f073ad 100644
--- a/notes.md
+++ b/notes.md
@@ -51,3 +51,4 @@
 2015-08-23T00:41:00 - Refactor for clarity, might break a few tests though (stable-baselines3)
 2015-08-23T07:03:00 - Minor doc updates: linking to article on quantization (stable-baselines3)
 2015-08-23T05:06:00 - Trying out boneh-franklin approach for IBE (ref. 2003 paper) (stable-baselines3)
+2015-12-17T19:23:00 - Experimenting with FPGA constraints (source: Trimberger 'Three Ages of FPGAs') (stable-baselines3)