diff --git a/README.md b/README.md
index 4f754de..3842c6c 100755
--- a/README.md
+++ b/README.md
@@ -26,6 +26,7 @@ Configure Options not in game menu:
 
 # Features
 
+- Swarming - Units will smoothly slide by one another allowing for streamlined attacking  
 - Difficulty Scaling - A mod option to control how quickly the ai can perform actions like making attack waves.  
 - Nocturnal Mode - A mod option to force biters to only attack at night. Does not yet affect vanilla attacks. Best use with daynight extender mod  
 - Recycling Biters - When large groups of biters form on the game map and aren't assigned to a unit group or near a base will be periodically removed and refunded to the ai causing attack waves proportional to the number of units removed.  
@@ -56,6 +57,10 @@ Configure Options not in game menu:
 
 # Version History
 
+0.15.24 -  
+- Feature: Swarming - by reducing the unit collision_mask to 40% of its original size the units no longer have the pathing issues that plagued large groups attacking  
+- Optimization: further reduced memory footprint for faster saving and loading  
+
 0.15.23 -  
 - Fixed: Retreat radius being centered on chunk corner instead of on the unit dying  
 - Fixed: Spitter flamethrower sound fx  
diff --git a/Upgrade.lua b/Upgrade.lua
index 50e4070..e301520 100755
--- a/Upgrade.lua
+++ b/Upgrade.lua
@@ -163,6 +163,11 @@ function upgrade.attempt(natives)
 	game.surfaces[1].print("Rampant - Version 0.15.23")
 	global.version = constants.VERSION_33
     end
+    if (global.version < constants.VERSION_34) then
+
+	game.surfaces[1].print("Rampant - Version 0.15.24")
+	global.version = constants.VERSION_34
+    end
     return starting ~= global.version, natives
 end
 
diff --git a/libs/Constants.lua b/libs/Constants.lua
index 8de85f0..0248536 100755
--- a/libs/Constants.lua
+++ b/libs/Constants.lua
@@ -16,6 +16,8 @@ constants.VERSION_26 = 26
 constants.VERSION_27 = 27
 constants.VERSION_28 = 28
 constants.VERSION_33 = 33
+constants.VERSION_34 = 34
+
 
 -- misc
 
diff --git a/make.rkt b/make.rkt
index 3c6a266..eaf64e5 100755
--- a/make.rkt
+++ b/make.rkt
@@ -78,8 +78,8 @@
       (copyDirectory "prototypes" modFolder)))
   
   (define (run)
-    (copyFiles modFolder)
+    ;;(copyFiles modFolder)
     ;;(copyFiles zipModFolder)
-    ;;(makeZip modFolder)
+    (makeZip modFolder)
     )
   )