diff --git a/language.version b/language.version
index b0112ae48..d509a0ada 100644
--- a/language.version
+++ b/language.version
@@ -1,3 +1,3 @@
 [default]
-SWWM_MODVER="\chSWWM \czGZ\c- \cw0.9.11b-pre r510 \cu(Wed 26 May 09:33:12 CEST 2021)\c-";
-SWWM_SHORTVER="\cw0.9.11b-pre r510 \cu(2021-05-26 09:33:12)\c-";
+SWWM_MODVER="\chSWWM \czGZ\c- \cw0.9.11b-pre r512 \cu(Wed 26 May 12:49:37 CEST 2021)\c-";
+SWWM_SHORTVER="\cw0.9.11b-pre r512 \cu(2021-05-26 12:49:37)\c-";
diff --git a/zmapinfo.txt b/zmapinfo.txt
index 95d0f024a..518dc52d9 100644
--- a/zmapinfo.txt
+++ b/zmapinfo.txt
@@ -27,7 +27,7 @@ GameInfo
 	MenuFontColor_Highlight = "Sapphire"
 	MenuFontColor_Selection = "Sapphire"
 	MenuSliderColor = "Green"
-	//MenuSliderBackColor = "DarkGray"
+	MenuSliderBackColor = "DarkGray"
 	MenuBackButton = "graphics/swwmback.png"
 	MessageBoxClass = "SWWMMessageBox"
 	PauseSign = "graphics/swwmpause.png"
@@ -144,7 +144,7 @@ Skill lunatic
 	SpawnFilter = nightmare
 	SpawnMulti
 	TotalInfighting
-	//InstantReaction
+	InstantReaction
 	NoPain
 	ACSReturn = 4
 	Name = "$SWWM_SKLUNATIC"
diff --git a/zscript/swwm_common.zsc b/zscript/swwm_common.zsc
index f128d0059..0844aa7a3 100644
--- a/zscript/swwm_common.zsc
+++ b/zscript/swwm_common.zsc
@@ -20,11 +20,6 @@ enum ESWWMGZChannels
 const FallbackTag = "AWESOME IT'S PENIS"; // used on tag processing, please don't mind the actual string used)
 const MaxBouncePerTic = 40;	// maximum simultaneous bounces in one tic for a lightweight actor before we consider it's stuck
 
-// fixup for 4.5 compat, will be removed once a new version lands
-// SKILLP_SpawnMulti is not defined in zscript, so it has to be declared here
-// (somehow this hackaround doesn't break anything in devbuilds)
-const SKILLP_SpawnMulti = SKILLP_PlayerRespawn+1;
-
 // basic "does nothing" actor, used to remove stuff in CheckReplacement
 Class SWWMNothing : Actor
 {