diff --git a/OpenSim/Region/CoreModules/World/Land/LandManagementModule.cs b/OpenSim/Region/CoreModules/World/Land/LandManagementModule.cs
index fae4f90b12..9905a53370 100644
--- a/OpenSim/Region/CoreModules/World/Land/LandManagementModule.cs
+++ b/OpenSim/Region/CoreModules/World/Land/LandManagementModule.cs
@@ -1264,7 +1264,6 @@ namespace OpenSim.Region.CoreModules.World.Land
             {
                 land.DeedToGroup(groupID);
             }
-            EventManagerOnParcelPrimCountTainted();
         }
 
         #region Land Object From Storage Functions
diff --git a/OpenSim/Region/Framework/Scenes/Scene.cs b/OpenSim/Region/Framework/Scenes/Scene.cs
index 2e82e1f37f..0e3cffb039 100644
--- a/OpenSim/Region/Framework/Scenes/Scene.cs
+++ b/OpenSim/Region/Framework/Scenes/Scene.cs
@@ -1337,12 +1337,12 @@ namespace OpenSim.Region.Framework.Scenes
                         terrainMS = Util.EnvironmentTickCountSubtract(terMS);
                     }
 
-                    if (Frame % m_update_land == 0)
-                    {
-                        int ldMS = Util.EnvironmentTickCount();
-                        UpdateLand();
-                        landMS = Util.EnvironmentTickCountSubtract(ldMS);
-                    }
+                   // if (Frame % m_update_land == 0)
+                   // {
+                   //     int ldMS = Util.EnvironmentTickCount();
+                   //     UpdateLand();
+                   //     landMS = Util.EnvironmentTickCountSubtract(ldMS);
+                   // }
 
                     frameMS = Util.EnvironmentTickCountSubtract(tmpFrameMS);
                     otherMS = tempOnRezMS + eventMS + backupMS + terrainMS + landMS;
diff --git a/OpenSim/Region/ScriptEngine/Shared/Api/Implementation/LSL_Api.cs b/OpenSim/Region/ScriptEngine/Shared/Api/Implementation/LSL_Api.cs
index c0b490af49..8ceb814ff0 100644
--- a/OpenSim/Region/ScriptEngine/Shared/Api/Implementation/LSL_Api.cs
+++ b/OpenSim/Region/ScriptEngine/Shared/Api/Implementation/LSL_Api.cs
@@ -10909,6 +10909,55 @@ namespace OpenSim.Region.ScriptEngine.Shared.Api
 
             return GetNumberOfSides(parts[0]);
         }
+
+        private string Name2Username(string name)
+        {
+            string[] parts = name.Split(new char[] {' '});
+            if (parts.Length < 2)
+                return name.ToLower();
+            if (parts[1] == "Resident")
+                return parts[0].ToLower();
+
+            return name.Replace(" ", ".").ToLower();
+        }
+
+        public LSL_String llGetUsername(string id)
+        {
+            return Name2Username(llKey2Name(id));
+        }
+
+        public LSL_String llRequestUsername(string id)
+        {
+            UUID rq = UUID.Random();
+
+            UUID tid = AsyncCommands.
+                DataserverPlugin.RegisterRequest(m_localID,
+                                             m_itemID, rq.ToString());
+
+            AsyncCommands.
+                DataserverPlugin.DataserverReply(rq.ToString(), Name2Username(llKey2Name(id)));
+
+            return rq.ToString();
+        }
+
+        public LSL_String llGetDisplayName(string id)
+        {
+            return llKey2Name(id);
+        }
+
+        public LSL_String llRequestDisplayName(string id)
+        {
+            UUID rq = UUID.Random();
+
+            UUID tid = AsyncCommands.
+                DataserverPlugin.RegisterRequest(m_localID,
+                                             m_itemID, rq.ToString());
+
+            AsyncCommands.
+                DataserverPlugin.DataserverReply(rq.ToString(), llKey2Name(id));
+
+            return rq.ToString();
+        }
     }
 
     public class NotecardCache
diff --git a/OpenSim/Region/ScriptEngine/Shared/Api/Implementation/Plugins/SensorRepeat.cs b/OpenSim/Region/ScriptEngine/Shared/Api/Implementation/Plugins/SensorRepeat.cs
index c4f90d21c7..3afedc72f9 100644
--- a/OpenSim/Region/ScriptEngine/Shared/Api/Implementation/Plugins/SensorRepeat.cs
+++ b/OpenSim/Region/ScriptEngine/Shared/Api/Implementation/Plugins/SensorRepeat.cs
@@ -50,6 +50,7 @@ namespace OpenSim.Region.ScriptEngine.Shared.Api.Plugins
         private Object SenseLock = new Object();
 
         private const int AGENT = 1;
+        private const int AGENT_BY_USERNAME = 0x10;
         private const int ACTIVE = 2;
         private const int PASSIVE = 4;
         private const int SCRIPTED = 8;
@@ -202,7 +203,7 @@ namespace OpenSim.Region.ScriptEngine.Shared.Api.Plugins
             List<SensedEntity> sensedEntities = new List<SensedEntity>();
 
             // Is the sensor type is AGENT and not SCRIPTED then include agents
-            if ((ts.type & AGENT) != 0 && (ts.type & SCRIPTED) == 0)
+            if ((ts.type & (AGENT | AGENT_BY_USERNAME)) != 0 && (ts.type & SCRIPTED) == 0)
             {
                 sensedEntities.AddRange(doAgentSensor(ts));
             }
@@ -505,9 +506,26 @@ namespace OpenSim.Region.ScriptEngine.Shared.Api.Plugins
             {
                 ScenePresence sp;
                 // Try lookup by name will return if/when found
-                if (!m_CmdManager.m_ScriptEngine.World.TryGetAvatarByName(ts.name, out sp))
-                    return sensedEntities;
-                senseEntity(sp);
+                if (((ts.type & AGENT) != 0) && m_CmdManager.m_ScriptEngine.World.TryGetAvatarByName(ts.name, out sp))
+                    senseEntity(sp);
+                if ((ts.type & AGENT_BY_USERNAME) != 0)
+                {
+                    m_CmdManager.m_ScriptEngine.World.ForEachScenePresence(
+                        delegate (ScenePresence ssp)
+                        {
+                            if (ssp.Lastname == "Resident")
+                            {
+                                if (ssp.Firstname.ToLower() == ts.name)
+                                    senseEntity(ssp);
+                                return;
+                            }
+                            if (ssp.Name.Replace(" ", ".").ToLower() == ts.name)
+                                senseEntity(ssp);
+                        }
+                    );
+                }
+
+                return sensedEntities;
             }
             else
             {
diff --git a/OpenSim/Region/ScriptEngine/Shared/Api/Interface/ILSL_Api.cs b/OpenSim/Region/ScriptEngine/Shared/Api/Interface/ILSL_Api.cs
index bae7d4b78b..0ae23882ad 100644
--- a/OpenSim/Region/ScriptEngine/Shared/Api/Interface/ILSL_Api.cs
+++ b/OpenSim/Region/ScriptEngine/Shared/Api/Interface/ILSL_Api.cs
@@ -209,6 +209,10 @@ namespace OpenSim.Region.ScriptEngine.Shared.Api.Interfaces
               void llInstantMessage(string user, string message);
         LSL_String llIntegerToBase64(int number);
         LSL_String llKey2Name(string id);
+        LSL_String llGetUsername(string id);
+        LSL_String llRequestUsername(string id);
+        LSL_String llGetDisplayName(string id);
+        LSL_String llRequestDisplayName(string id);
         void llLinkParticleSystem(int linknum, LSL_List rules);
         LSL_String llList2CSV(LSL_List src);
          LSL_Float llList2Float(LSL_List src, int index);
diff --git a/OpenSim/Region/ScriptEngine/Shared/Api/Runtime/LSL_Constants.cs b/OpenSim/Region/ScriptEngine/Shared/Api/Runtime/LSL_Constants.cs
index c31e5d3092..5f94ff5b35 100644
--- a/OpenSim/Region/ScriptEngine/Shared/Api/Runtime/LSL_Constants.cs
+++ b/OpenSim/Region/ScriptEngine/Shared/Api/Runtime/LSL_Constants.cs
@@ -50,6 +50,8 @@ namespace OpenSim.Region.ScriptEngine.Shared.ScriptBase
         public const int STATUS_CAST_SHADOWS = 512;
 
         public const int AGENT = 1;
+        public const int AGENT_BY_LEGACY_NAME = 1;
+        public const int AGENT_BY_USERNAME = 0x10;
         public const int ACTIVE = 2;
         public const int PASSIVE = 4;
         public const int SCRIPTED = 8;
diff --git a/OpenSim/Region/ScriptEngine/Shared/Api/Runtime/LSL_Stub.cs b/OpenSim/Region/ScriptEngine/Shared/Api/Runtime/LSL_Stub.cs
index 7c26824197..63cac9a134 100644
--- a/OpenSim/Region/ScriptEngine/Shared/Api/Runtime/LSL_Stub.cs
+++ b/OpenSim/Region/ScriptEngine/Shared/Api/Runtime/LSL_Stub.cs
@@ -896,6 +896,26 @@ namespace OpenSim.Region.ScriptEngine.Shared.ScriptBase
             return m_LSL_Functions.llKey2Name(id);
         }
 
+        public LSL_String llGetUsername(string id)
+        {
+            return m_LSL_Functions.llGetUsername(id);
+        }
+
+        public LSL_String llRequestUsername(string id)
+        {
+            return m_LSL_Functions.llRequestUsername(id);
+        }
+
+        public LSL_String llGetDisplayName(string id)
+        {
+            return m_LSL_Functions.llGetDisplayName(id);
+        }
+
+        public LSL_String llRequestDisplayName(string id)
+        {
+            return m_LSL_Functions.llRequestDisplayName(id);
+        }
+
         public void llLinkParticleSystem(int linknum, LSL_List rules)
         {
             m_LSL_Functions.llLinkParticleSystem(linknum, rules);