diff --git a/README.md b/README.md
index a910f71e..c1d0154a 100644
--- a/README.md
+++ b/README.md
@@ -63,6 +63,7 @@ All Simulator updates on Open SIMH will be present in this repository, and any c
 - ZAP command can be aborted by a Control-C.
 - Display current NOAUTOSIZE status in SHOW VERSION output.
 - Extend logical name support to include optional unique names for units as well as devices.
+- Add extended register sanity checks including duplicate name detection.  Fixed simulator devices with duplicate register names.
 
 #### Changes to the PDP-11 and VAX simulators
 
@@ -76,7 +77,7 @@ All Simulator updates on Open SIMH will be present in this repository, and any c
 - Full support for using disk containers with metadata between different system and device types where it makes sense.
 - VHD disk formats are available on all disk types (including floppy or DECtape devices).
 - Properly size RY drives which also don't have DEC144
-- Properly name extended units beyond the initial default units.
+- Properly name RQ extended units beyond the initial default units.
 
 ### Updates to the Unibus DUP & Qbus DPV device by Trevor Warwick