diff --git a/.github/CHANGELOG.md b/.github/CHANGELOG.md
index e77f1843389..d9b47fcaa3c 100644
--- a/.github/CHANGELOG.md
+++ b/.github/CHANGELOG.md
@@ -14,6 +14,7 @@
 1. [HYD] Trimmable physical assemblies - @Crocket63 (crocket)
 1. [HYD] Simulation of the rudder mechanical assembly and yaw dampers - @Crocket63 (crocket)
 1. [FLIGHTMODEL] Reduced flap induced drag - @donstim (donbikes#4084)
+1. [ADIRU/ND/PFD] Initial support for polar navigation - @tracernz (Mike)
 
 ## 0.9.0
 
diff --git a/docs/a320-simvars.md b/docs/a320-simvars.md
index 00044bb5282..0f577bfdd88 100644
--- a/docs/a320-simvars.md
+++ b/docs/a320-simvars.md
@@ -1594,9 +1594,14 @@ In the variables below, {number} should be replaced with one item in the set: {
     - TODO flag table
 
 - A32NX_ADIRS_USES_GPS_AS_PRIMARY
+    - TODO delete (this is an FM function, not ADIRU)
     - Bool
     - Whether or not the GPS is used as the primary means of navigation/position determination.
 
+- A32NX_PUSH_TRUE_REF
+    - Bool
+    - True reference pushbutton status
+
 ## Radio Receivers
 
 - A32NX_RADIO_RECEIVER_USAGE_ENABLED