diff --git a/src/d_iwad.cpp b/src/d_iwad.cpp
index e53a1d3629..6b430fa038 100644
--- a/src/d_iwad.cpp
+++ b/src/d_iwad.cpp
@@ -367,7 +367,7 @@ int FIWadManager::CheckIWAD (const char *doomwaddir, WadStuff *wads)
 // Under UNIX OSes, the search path is:
 //	  1. Current directory
 //	  2. $DOOMWADDIR
-//	  3. $HOME/.zdoom
+//	  3. $HOME/.config/zdoom
 //	  4. The share directory defined at compile time (/usr/local/share/zdoom)
 //
 // The search path can be altered by editing the IWADSearch.Directories
@@ -516,9 +516,19 @@ int FIWadManager::IdentifyVersion (TArray<FString> &wadfiles, const char *iwad,
 		I_FatalError ("Cannot find a game IWAD (doom.wad, doom2.wad, heretic.wad, etc.).\n"
 					  "Did you install ZDoom properly? You can do either of the following:\n"
 					  "\n"
+#if defined(_WIN32)
 					  "1. Place one or more of these wads in the same directory as ZDoom.\n"
 					  "2. Edit your zdoom-username.ini and add the directories of your iwads\n"
 					  "to the list beneath [IWADSearch.Directories]");
+#elif defined(__APPLE__)
+					  "1. Place one or more of these wads in ~/Library/Application Support/zdoom/\n"
+					  "2. Edit your ~/Library/Preferences/zdoom.ini and add the directories\n"
+					  "of your iwads to the list beneath [IWADSearch.Directories]");
+#else
+					  "1. Place one or more of these wads in ~/.config/zdoom/.\n"
+					  "2. Edit your ~/.config/zdoom/zdoom.ini and add the directories of your\n"
+					  "iwads to the list beneath [IWADSearch.Directories]");
+#endif
 	}
 
 	pickwad = 0;
diff --git a/src/d_netinfo.cpp b/src/d_netinfo.cpp
index 92c8abc3ee..6832a047e1 100644
--- a/src/d_netinfo.cpp
+++ b/src/d_netinfo.cpp
@@ -1048,3 +1048,14 @@ CCMD (playerinfo)
 		}
 	}
 }
+
+userinfo_t::~userinfo_t()
+{
+	TMapIterator<FName, FBaseCVar *> it(*this);
+	TMap<FName, FBaseCVar *>::Pair *pair;
+
+	while (it.NextPair(pair))
+	{
+		delete pair->Value;
+	}
+}
diff --git a/src/d_player.h b/src/d_player.h
index 6169dcebfd..fcc5415516 100644
--- a/src/d_player.h
+++ b/src/d_player.h
@@ -260,6 +260,8 @@ enum
 
 struct userinfo_t : TMap<FName,FBaseCVar *>
 {
+	~userinfo_t();
+
 	int GetAimDist() const
 	{
 		if (dmflags2 & DF2_NOAUTOAIM)
diff --git a/src/menu/loadsavemenu.cpp b/src/menu/loadsavemenu.cpp
index 99ac599380..20779a221b 100644
--- a/src/menu/loadsavemenu.cpp
+++ b/src/menu/loadsavemenu.cpp
@@ -898,7 +898,7 @@ IMPLEMENT_CLASS(DSaveMenu)
 DSaveMenu::DSaveMenu(DMenu *parent, FListMenuDescriptor *desc)
 : DLoadSaveMenu(parent, desc)
 {
-	strcpy (NewSaveNode.Title, "<New Save Game>");
+	strcpy (NewSaveNode.Title, GStrings["NEWSAVE"]);
 	NewSaveNode.bNoDelete = true;
 	SaveGames.Insert(0, &NewSaveNode);
 	TopItem = 0;
diff --git a/src/p_saveg.cpp b/src/p_saveg.cpp
index a045c50989..d33f21f6f2 100644
--- a/src/p_saveg.cpp
+++ b/src/p_saveg.cpp
@@ -256,11 +256,20 @@ static void CopyPlayer (player_t *dst, player_t *src, const char *name)
 {
 	// The userinfo needs to be saved for real players, but it
 	// needs to come from the save for bots.
-	userinfo_t uibackup = dst->userinfo;
+	userinfo_t uibackup;
+	userinfo_t uibackup2;
+
+	uibackup.TransferFrom(dst->userinfo);
+	uibackup2.TransferFrom(src->userinfo);
+
 	int chasecam = dst->cheats & CF_CHASECAM;	// Remember the chasecam setting
 	bool attackdown = dst->attackdown;
 	bool usedown = dst->usedown;
-	*dst = *src;
+
+	
+	dst->~player_t();	// ensure that the userinfo in dst does not contain anything before copying everything over.
+	*dst = *src;		// To avoid memory leaks at this point the userinfo in src must be empty which is taken care of by the TransferFrom call above.
+
 	dst->cheats |= chasecam;
 
 	if (dst->isbot)
@@ -276,10 +285,11 @@ static void CopyPlayer (player_t *dst, player_t *src, const char *name)
 		}
 		bglobal.botnum++;
 		bglobal.botingame[dst - players] = true;
+		dst->userinfo.TransferFrom(uibackup2);
 	}
 	else
 	{
-		dst->userinfo = uibackup;
+		dst->userinfo.TransferFrom(uibackup);
 	}
 	// Validate the skin
 	dst->userinfo.SkinNumChanged(R_FindSkin(skins[dst->userinfo.GetSkin()].name, dst->CurrentPlayerClass));
diff --git a/src/p_spec.cpp b/src/p_spec.cpp
index 3a63577484..63f7c1c89e 100644
--- a/src/p_spec.cpp
+++ b/src/p_spec.cpp
@@ -639,12 +639,21 @@ void P_SectorDamage(int tag, int amount, FName type, const PClass *protectClass,
 			{
 				next = actor->snext;
 				// Only affect actors touching the 3D floor
-				if (actor->z + actor->height > sec->floorplane.ZatPoint(actor->x, actor->y))
+				fixed_t z1 = sec->floorplane.ZatPoint(actor->x, actor->y);
+				fixed_t z2 = sec->ceilingplane.ZatPoint(actor->x, actor->y);
+				if (z2 < z1)
+				{
+					// Account for Vavoom-style 3D floors
+					fixed_t zz = z1;
+					z1 = z2;
+					z2 = zz;
+				}
+				if (actor->z + actor->height > z1)
 				{
 					// If DAMAGE_IN_AIR is used, anything not beneath the 3D floor will be
 					// damaged (so, anything touching it or above it). Other 3D floors between
 					// the actor and this one will not stop this effect.
-					if ((flags & DAMAGE_IN_AIR) || actor->z <= sec->ceilingplane.ZatPoint(actor->x, actor->y))
+					if ((flags & DAMAGE_IN_AIR) || actor->z <= z2)
 					{
 						// Here we pass the DAMAGE_IN_AIR flag to disable the floor check, since it
 						// only works with the real sector's floor. We did the appropriate height checks
diff --git a/src/p_user.cpp b/src/p_user.cpp
index 5ac8a1a885..35ab99036b 100644
--- a/src/p_user.cpp
+++ b/src/p_user.cpp
@@ -309,7 +309,6 @@ player_t::player_t()
   ConversationFaceTalker(0)
 {
 	memset (&cmd, 0, sizeof(cmd));
-	memset (&userinfo, 0, sizeof(userinfo));
 	memset (frags, 0, sizeof(frags));
 	memset (psprites, 0, sizeof(psprites));
 	memset (&skill, 0, sizeof(skill));
diff --git a/src/r_plane.cpp b/src/r_plane.cpp
index 8bf5444552..986d992033 100644
--- a/src/r_plane.cpp
+++ b/src/r_plane.cpp
@@ -174,7 +174,15 @@ void R_InitPlanes ()
 void R_DeinitPlanes ()
 {
 	fakeActive = 0;
-	R_ClearPlanes(false);
+
+	// do not use R_ClearPlanes because at this point the screen pointer is no longer valid.
+	for (int i = 0; i <= MAXVISPLANES; i++)	// new code -- killough
+	{
+		for (*freehead = visplanes[i], visplanes[i] = NULL; *freehead; )
+		{
+			freehead = &(*freehead)->next;
+		}
+	}
 	for (visplane_t *pl = freetail; pl != NULL; )
 	{
 		visplane_t *next = pl->next;
@@ -490,7 +498,7 @@ void R_MapColoredPlane (int y, int x1)
 
 void R_ClearPlanes (bool fullclear)
 {
-	int i, max;
+	int i;
 
 	// Don't clear fake planes if not doing a full clear.
 	if (!fullclear)
@@ -516,7 +524,6 @@ void R_ClearPlanes (bool fullclear)
 	}
 	else
 	{
-		max = fullclear ? MAXVISPLANES : MAXVISPLANES-1;
 		for (i = 0; i <= MAXVISPLANES; i++)	// new code -- killough
 		{
 			for (*freehead = visplanes[i], visplanes[i] = NULL; *freehead; )
@@ -524,10 +531,7 @@ void R_ClearPlanes (bool fullclear)
 				freehead = &(*freehead)->next;
 			}
 		}
-	}
 
-	if (fullclear)
-	{
 		// opening / clipping determination
 		clearbufshort (floorclip, viewwidth, viewheight);
 		// [RH] clip ceiling to console bottom
diff --git a/src/thingdef/thingdef_codeptr.cpp b/src/thingdef/thingdef_codeptr.cpp
index d35572121a..7b571b0c52 100644
--- a/src/thingdef/thingdef_codeptr.cpp
+++ b/src/thingdef/thingdef_codeptr.cpp
@@ -70,6 +70,7 @@
 #include "m_bbox.h"
 #include "r_data/r_translate.h"
 #include "p_trace.h"
+#include "gstrings.h"
 
 
 static FRandom pr_camissile ("CustomActorfire");
@@ -2133,6 +2134,7 @@ DEFINE_ACTION_FUNCTION_PARAMS(AActor, A_Print)
 	ACTION_PARAM_FLOAT(time, 1);
 	ACTION_PARAM_NAME(fontname, 2);
 
+	if (text[0] == '$') text = GStrings(text+1);
 	if (self->CheckLocalView (consoleplayer) ||
 		(self->target!=NULL && self->target->CheckLocalView (consoleplayer)))
 	{
@@ -2171,6 +2173,7 @@ DEFINE_ACTION_FUNCTION_PARAMS(AActor, A_PrintBold)
 	float saved = con_midtime;
 	FFont *font = NULL;
 	
+	if (text[0] == '$') text = GStrings(text+1);
 	if (fontname != NAME_None)
 	{
 		font = V_GetFont(fontname);
@@ -2196,11 +2199,13 @@ DEFINE_ACTION_FUNCTION_PARAMS(AActor, A_Log)
 {
 	ACTION_PARAM_START(1);
 	ACTION_PARAM_STRING(text, 0);
+
+	if (text[0] == '$') text = GStrings(text+1);
 	Printf("%s\n", text);
 	ACTION_SET_RESULT(false);	// Prints should never set the result for inventory state chains!
 }
 
-//===========================================================================
+//=========================================================================
 //
 // A_LogInt
 //
diff --git a/wadsrc/static/compatibility.txt b/wadsrc/static/compatibility.txt
index 795b9348ad..4b75dfaba3 100644
--- a/wadsrc/static/compatibility.txt
+++ b/wadsrc/static/compatibility.txt
@@ -361,3 +361,18 @@ F481922F4881F74760F3C0437FD5EDD0 // map03
 	// still set when returning to the origin map.
 	linkfrozenprops
 }
+
+D62DCA9EC226DE49108D5DD9271F7631 // Cheogsh 2 map04
+{
+	// Stuff in megasphere cage is positioned too low
+	setthingz 1640 528
+	setthingz 1641 528
+	setthingz 1642 528
+	setthingz 1643 528
+	setthingz 1644 528
+	setthingz 1645 528
+	setthingz 1646 528
+	setthingz 1647 528
+	setthingz 1648 528
+	setthingz 1649 528
+}
\ No newline at end of file
diff --git a/wadsrc/static/language.enu b/wadsrc/static/language.enu
index 0c8fff5d3e..4b5225f547 100644
--- a/wadsrc/static/language.enu
+++ b/wadsrc/static/language.enu
@@ -112,6 +112,7 @@ PD_YELLOWCO = "You need a yellow card to activate this object";
 PD_BLUESO = "You need a blue skull to activate this object";
 PD_REDSO = "You need a red skull to activate this object";
 PD_YELLOWSO = "You need a yellow skull to activate this object";
+NEWSAVE = "<New Save Game>";
 GGSAVED = "game saved.";
 HUSTR_MSGU = "[Message unsent]";
 PICKUP_PISTOL_DROPPED = "Picked up a pistol.";