diff --git a/OpenSim/Region/Physics/BulletSPlugin/BSApiTemplate.cs b/OpenSim/Region/Physics/BulletSPlugin/BSApiTemplate.cs
index be6f1528d0..0458cd9552 100644
--- a/OpenSim/Region/Physics/BulletSPlugin/BSApiTemplate.cs
+++ b/OpenSim/Region/Physics/BulletSPlugin/BSApiTemplate.cs
@@ -43,9 +43,11 @@ public enum ConstraintType : int
 	SLIDER_CONSTRAINT_TYPE,
 	CONTACT_CONSTRAINT_TYPE,
 	D6_SPRING_CONSTRAINT_TYPE,
+	GEAR_CONSTRAINT_TYPE,           // added in Bullet 2.82
+	FIXED_CONSTRAINT_TYPE,          // added in Bullet 2.82
 	MAX_CONSTRAINT_TYPE,            // last type defined by Bullet
     //
-    FIXED_CONSTRAINT_TYPE = 1234    // BulletSim constraint that is fixed and unmoving
+    BS_FIXED_CONSTRAINT_TYPE = 1234    // BulletSim constraint that is fixed and unmoving
 }
 
 // ===============================================================================
diff --git a/OpenSim/Region/Physics/BulletSPlugin/BSLinksetConstraints.cs b/OpenSim/Region/Physics/BulletSPlugin/BSLinksetConstraints.cs
index aaf92c80d2..b0a5ef181a 100755
--- a/OpenSim/Region/Physics/BulletSPlugin/BSLinksetConstraints.cs
+++ b/OpenSim/Region/Physics/BulletSPlugin/BSLinksetConstraints.cs
@@ -78,7 +78,7 @@ public sealed class BSLinksetConstraints : BSLinkset
         public override void ResetLink()
         {
             // constraintType = ConstraintType.D6_CONSTRAINT_TYPE;
-            constraintType = ConstraintType.FIXED_CONSTRAINT_TYPE;
+            constraintType = ConstraintType.BS_FIXED_CONSTRAINT_TYPE;
             linearLimitLow = OMV.Vector3.Zero;
             linearLimitHigh = OMV.Vector3.Zero;
             angularLimitLow = OMV.Vector3.Zero;
@@ -115,7 +115,7 @@ public sealed class BSLinksetConstraints : BSLinkset
             member.PhysScene.DetailLog("{0},BSLinkInfoConstraint.SetLinkParameters,type={1}", member.LocalID, constraintType);
             switch (constraintType)
             {
-                case ConstraintType.FIXED_CONSTRAINT_TYPE:
+                case ConstraintType.BS_FIXED_CONSTRAINT_TYPE:
                 case ConstraintType.D6_CONSTRAINT_TYPE:
                     BSConstraint6Dof constrain6dof = constrain as BSConstraint6Dof;
                     if (constrain6dof != null)
@@ -179,7 +179,7 @@ public sealed class BSLinksetConstraints : BSLinkset
         public override bool ShouldUpdateChildProperties()
         {
             bool ret = true;
-            if (constraintType == ConstraintType.FIXED_CONSTRAINT_TYPE)
+            if (constraintType == ConstraintType.BS_FIXED_CONSTRAINT_TYPE)
                 ret = false;
 
             return ret;
@@ -363,7 +363,7 @@ public sealed class BSLinksetConstraints : BSLinkset
 
         switch (linkInfo.constraintType)
         {
-            case ConstraintType.FIXED_CONSTRAINT_TYPE:
+            case ConstraintType.BS_FIXED_CONSTRAINT_TYPE:
             case ConstraintType.D6_CONSTRAINT_TYPE:
                 // Relative position normalized to the root prim
                 // Essentually a vector pointing from center of rootPrim to center of li.member
@@ -536,7 +536,7 @@ public sealed class BSLinksetConstraints : BSLinkset
                 {
                     int requestedType = (int)pParams[2];
                     DetailLog("{0},BSLinksetConstraint.ChangeLinkType,requestedType={1}", LinksetRoot.LocalID, requestedType);
-                    if (requestedType == (int)ConstraintType.FIXED_CONSTRAINT_TYPE
+                    if (requestedType == (int)ConstraintType.BS_FIXED_CONSTRAINT_TYPE
                         || requestedType == (int)ConstraintType.D6_CONSTRAINT_TYPE
                         || requestedType == (int)ConstraintType.D6_SPRING_CONSTRAINT_TYPE
                         || requestedType == (int)ConstraintType.HINGE_CONSTRAINT_TYPE
@@ -646,7 +646,7 @@ public sealed class BSLinksetConstraints : BSLinkset
                                         case ExtendedPhysics.PHYS_PARAM_LINK_TYPE:
                                             valueInt = (int)pParams[opIndex + 1];
                                             ConstraintType valueType = (ConstraintType)valueInt;
-                                            if (valueType == ConstraintType.FIXED_CONSTRAINT_TYPE
+                                            if (valueType == ConstraintType.BS_FIXED_CONSTRAINT_TYPE
                                                 || valueType == ConstraintType.D6_CONSTRAINT_TYPE
                                                 || valueType == ConstraintType.D6_SPRING_CONSTRAINT_TYPE
                                                 || valueType == ConstraintType.HINGE_CONSTRAINT_TYPE
diff --git a/bin/OpenSimDefaults.ini b/bin/OpenSimDefaults.ini
index dce01ebce9..5361e8d100 100644
--- a/bin/OpenSimDefaults.ini
+++ b/bin/OpenSimDefaults.ini
@@ -1024,7 +1024,7 @@
     ; BulletEngine = "bulletxna"
 
     ; BulletSim can run on its own thread independent of the simulator's heartbeat
-    ;   thread. Enabling this will nto let the physics engine slow down avatar movement, etc.
+    ;   thread. Enabling this will not let the physics engine slow down avatar movement, etc.
     UseSeparatePhysicsThread = false
 
     ; Terrain implementation can use either Bullet's heightField or BulletSim can build
diff --git a/bin/lib32/BulletSim.dll b/bin/lib32/BulletSim.dll
index ee7cce739c..e1bffebff4 100755
Binary files a/bin/lib32/BulletSim.dll and b/bin/lib32/BulletSim.dll differ
diff --git a/bin/lib32/libBulletSim.so b/bin/lib32/libBulletSim.so
index ee2bd806f1..f409363390 100755
Binary files a/bin/lib32/libBulletSim.so and b/bin/lib32/libBulletSim.so differ
diff --git a/bin/lib64/BulletSim.dll b/bin/lib64/BulletSim.dll
index b4c4becfbe..7b76d1d46e 100755
Binary files a/bin/lib64/BulletSim.dll and b/bin/lib64/BulletSim.dll differ
diff --git a/bin/lib64/libBulletSim.so b/bin/lib64/libBulletSim.so
index 9c4033b3ed..827571fd9a 100755
Binary files a/bin/lib64/libBulletSim.so and b/bin/lib64/libBulletSim.so differ