diff --git a/language.version b/language.version
index a8588d2b1..ab3715364 100644
--- a/language.version
+++ b/language.version
@@ -1,3 +1,3 @@
 [default]
-SWWM_MODVER="\cyDEMOLITIONIST \cw1.3pre r255 \cu(Fri  5 Aug 21:25:50 CEST 2022)\c-";
-SWWM_SHORTVER="\cw1.3pre r255 \cu(2022-08-05 21:25:50)\c-";
+SWWM_MODVER="\cyDEMOLITIONIST \cw1.3pre r256 \cu(Fri  5 Aug 21:30:11 CEST 2022)\c-";
+SWWM_SHORTVER="\cw1.3pre r256 \cu(2022-08-05 21:30:11)\c-";
diff --git a/zscript/compat/swwm_compat.zsc b/zscript/compat/swwm_compat.zsc
index 0ca47db7e..b98ea5b9b 100644
--- a/zscript/compat/swwm_compat.zsc
+++ b/zscript/compat/swwm_compat.zsc
@@ -7,7 +7,7 @@ Class SWWMLevelCompatibility : LevelPostProcessor
 	private void EquinoxBossBrainHandle( uint lineno, int sectortag )
 	{
 		// don't spawn boss brains until it's time to crush them
-		for ( int i=0; i<GetThingCount(); i++ )
+		for ( uint i=0; i<GetThingCount(); i++ )
 		{
 			if ( GetThingEdNum(i) != 88 ) continue;
 			SetThingEdNum(i,9001);
@@ -133,7 +133,7 @@ Class SWWMLevelCompatibility : LevelPostProcessor
 		case 'CDF12AAE960E6BD11D98E1F0A1782B7B':
 			// reduce OBSCENELY EXCESSIVE number of cell packs in voodoo doll conveyors (400), which will cause immense lag when replaced with mod ammo
 			// unsurprisingly, this actually makes the map go from completely unplayable to having perfectly smooth performance (gee, I wonder why)
-			for ( int i=0; i<GetThingCount(); i++ )
+			for ( uint i=0; i<GetThingCount(); i++ )
 			{
 				if ( GetThingEdNum(i) != 17 ) continue;
 				Vector3 pos = GetThingPos(i);
@@ -198,7 +198,7 @@ Class SWWMLevelCompatibility : LevelPostProcessor
 		// Doom 2 MAP07
 		case '291F24417FB3DD411339AE82EF9B3597':
 			// remove excess backpacks (there's 10 of them for fuck's sake)
-			for ( int i=0; i<GetThingCount(); i++ )
+			for ( uint i=0; i<GetThingCount(); i++ )
 			{
 				if ( GetThingEdNum(i) != 8 ) continue;
 				if ( nbackpack ) SetThingEdNum(i,0);
@@ -207,7 +207,7 @@ Class SWWMLevelCompatibility : LevelPostProcessor
 			// no cheesing of the exit
 			AddSectorTag(3,669);
 			OffsetSectorPlane(3,0,-72.);
-			for ( int i=149; i<=153; i++ )
+			for ( uint i=149; i<=153; i++ )
 			{
 				SetLineFlags(i,Line.ML_CHECKSWITCHRANGE);
 				SetWallTexture(i,1,2,"BRICK4");
@@ -378,7 +378,7 @@ Class SWWMLevelCompatibility : LevelPostProcessor
 					l.backsector.SeqName = 'PushwallWolf3D';
 			}
 			// enemy replacements
-			for ( int i=0; i<GetThingCount(); i++ )
+			for ( uint i=0; i<GetThingCount(); i++ )
 			{
 				int ednum = GetThingEdNum(i);
 				if ( (ednum == 84) || (ednum == 3004) )
@@ -542,7 +542,7 @@ Class SWWMLevelCompatibility : LevelPostProcessor
 			case '968D97F5952E55DB2464274A8EE5F529':
 			case '5669E396BEDDEA6D90EF5AF5EC892811':
 				// get rid of these dumb skulltag ctf actors
-				for ( int i=0; i<GetThingCount(); i++ )
+				for ( uint i=0; i<GetThingCount(); i++ )
 				{
 					int ednum = GetThingEdNum(i);
 					if ( (ednum == 5130) || (ednum == 5131)
@@ -557,7 +557,7 @@ Class SWWMLevelCompatibility : LevelPostProcessor
 		// [Hexen] force Mystic Ambit Incants to spawn outside coop
 		if ( gameinfo.gametype&GAME_Hexen )
 		{
-			for ( int i=0; i<GetThingCount(); i++ )
+			for ( uint i=0; i<GetThingCount(); i++ )
 			{
 				if ( GetThingEdNum(i) != 10120 ) continue;
 				uint flg = GetThingFlags(i);
diff --git a/zscript/handler/swwm_statichandler_achievements.zsc b/zscript/handler/swwm_statichandler_achievements.zsc
index 606836619..99bf3c2ad 100644
--- a/zscript/handler/swwm_statichandler_achievements.zsc
+++ b/zscript/handler/swwm_statichandler_achievements.zsc
@@ -181,7 +181,7 @@ extend Class SWWMStaticHandler
 		// decode
 		static const int cypher[] = {0xAD,0xEA,0xDB,0xED};
 		String nstr = "";
-		for ( int i=0; i<statestr.length(); i+=2 )
+		for ( uint i=0; i<statestr.length(); i+=2 )
 		{
 			int b, c, a;
 			b = statestr.ByteAt(i);
@@ -191,7 +191,7 @@ extend Class SWWMStaticHandler
 		}
 		statestr = nstr;
 		nstr = "";
-		for ( int i=0; i<progstr.length(); i+=2 )
+		for ( uint i=0; i<progstr.length(); i+=2 )
 		{
 			int b, c, a;
 			b = progstr.ByteAt(i);
@@ -303,7 +303,7 @@ extend Class SWWMStaticHandler
 		// cheap encode
 		static const int cypher[] = {0xAD,0xEA,0xDB,0xED};
 		String nstr = "";
-		for ( int i=0; i<statestr.length(); i++ )
+		for ( uint i=0; i<statestr.length(); i++ )
 		{
 			int a, b, c;
 			a = statestr.ByteAt(i)^cypher[i%4];
@@ -313,7 +313,7 @@ extend Class SWWMStaticHandler
 		}
 		statestr = nstr;
 		nstr = "";
-		for ( int i=0; i<progstr.length(); i++ )
+		for ( uint i=0; i<progstr.length(); i++ )
 		{
 			int a, b, c;
 			a = progstr.ByteAt(i)^cypher[i%4];
diff --git a/zscript/swwm_Polyobjects/PolyobjectMapPostprocessor.zs b/zscript/swwm_Polyobjects/PolyobjectMapPostprocessor.zs
index 13f78632f..564e0ed13 100644
--- a/zscript/swwm_Polyobjects/PolyobjectMapPostprocessor.zs
+++ b/zscript/swwm_Polyobjects/PolyobjectMapPostprocessor.zs
@@ -11,7 +11,7 @@ class swwm_PolyobjectHandlePostProcessor: LevelPostProcessor
       return;
 
     // Look for Polyobject StartSpots and create a handle for each
-    for (int i = 0; i < GetThingCount(); i++)
+    for (uint i = 0; i < GetThingCount(); i++)
     {
       // Ignore every thing that isn't a Polyobject StartSpot
       int ednum = GetThingEdNum(i);