diff --git a/specification/sources/chapters/appendix.adoc b/specification/sources/chapters/appendix.adoc
index 80254dce..c6276800 100644
--- a/specification/sources/chapters/appendix.adoc
+++ b/specification/sources/chapters/appendix.adoc
@@ -677,7 +677,6 @@ the time of their most recent contribution, are listed below.
 * Matt Wash, Arm (version 1.0)
 * Mattias Brand, Tobii (version 1.0)
 * Mattias O. Karlsson, Tobii (version 1.0)
-* Matthieu Bucchianeri, Microsoft (version 1.1)
 * Michael Gatson, Dell (version 1.0)
 * Minmin Gong, Microsoft (version 1.0)
 * Mitch Singer, AMD (version 1.0)
diff --git a/specification/sources/chapters/extensions/khr/khr_d3d11_enable.adoc b/specification/sources/chapters/extensions/khr/khr_d3d11_enable.adoc
index 1a7eb122..9f900036 100644
--- a/specification/sources/chapters/extensions/khr/khr_d3d11_enable.adoc
+++ b/specification/sources/chapters/extensions/khr/khr_d3d11_enable.adoc
@@ -12,8 +12,7 @@ include::{generated}/meta/XR_KHR_D3D11_enable.adoc[]
     Bryce Hutchings, Microsoft +
     Paul Pedriana, Oculus +
     Mark Young, LunarG +
-    Minmin Gong, Microsoft +
-    Matthieu Bucchianeri, Microsoft
+    Minmin Gong, Microsoft
 
 *Overview*
 
@@ -242,5 +241,5 @@ include::{generated}/validity/protos/xrGetD3D11GraphicsRequirementsKHR.adoc[]
 ** Added new `XR_ERROR_GRAPHICS_REQUIREMENTS_CALL_MISSING` error code
 * Revision 8, 2021-09-09 (Bryce Hutchings)
 ** Document mapping for `XrSwapchainUsageFlags`
-* Revision 9, 2021-12-28 (Matthieu Bucchianeri)
+* Revision 9, 2021-12-28 (Microsoft)
 ** Added missing `XR_ERROR_GRAPHICS_DEVICE_INVALID` error condition
diff --git a/specification/sources/chapters/extensions/khr/khr_d3d12_enable.adoc b/specification/sources/chapters/extensions/khr/khr_d3d12_enable.adoc
index a22a8c4c..1fd647a1 100644
--- a/specification/sources/chapters/extensions/khr/khr_d3d12_enable.adoc
+++ b/specification/sources/chapters/extensions/khr/khr_d3d12_enable.adoc
@@ -13,8 +13,7 @@ include::{generated}/meta/XR_KHR_D3D12_enable.adoc[]
     Paul Pedriana, Oculus +
     Mark Young, LunarG +
     Minmin Gong, Microsoft +
-    Dan Ginsburg, Valve +
-    Matthieu Bucchianeri, Microsoft
+    Dan Ginsburg, Valve
 
 *Overview*
 
@@ -280,5 +279,5 @@ include::{generated}/validity/protos/xrGetD3D12GraphicsRequirementsKHR.adoc[]
 ** Added new `XR_ERROR_GRAPHICS_REQUIREMENTS_CALL_MISSING` error code
 * Revision 8, 2021-09-09 (Bryce Hutchings)
 ** Document mapping for `XrSwapchainUsageFlags`
-* Revision 9, 2021-12-28 (Matthieu Bucchianeri)
+* Revision 9, 2021-12-28 (Microsoft)
 ** Added missing `XR_ERROR_GRAPHICS_DEVICE_INVALID` error condition