diff --git a/dist/engine.bundle.js b/dist/engine.bundle.js
index d6cb67557..82e4ecfd4 100644
--- a/dist/engine.bundle.js
+++ b/dist/engine.bundle.js
@@ -31192,7 +31192,22 @@ function NetscriptFunctions(workerScript) {
                 throw Object(_NetscriptEvaluator_js__WEBPACK_IMPORTED_MODULE_25__["makeRuntimeRejectMsg"])(workerScript, "Invalid scriptname or numThreads argument passed to spawn()");
             }
             setTimeout(()=>{
-                NetscriptFunctions(workerScript).run.apply(this, arguments);
+                if (scriptname === undefined) {
+                    throw Object(_NetscriptEvaluator_js__WEBPACK_IMPORTED_MODULE_25__["makeRuntimeRejectMsg"])(workerScript, "spawn() call has incorrect number of arguments. Usage: spawn(scriptname, numThreads, [arg1], [arg2]...)");
+                }
+                if (isNaN(threads) || threads < 1) {
+                    throw Object(_NetscriptEvaluator_js__WEBPACK_IMPORTED_MODULE_25__["makeRuntimeRejectMsg"])(workerScript, "Invalid argument for thread count passed into run(). Must be numeric and greater than 0");
+                }
+                var argsForNewScript = [];
+                for (var i = 2; i < arguments.length; ++i) {
+                    argsForNewScript.push(arguments[i]);
+                }
+                var scriptServer = Object(_Server_js__WEBPACK_IMPORTED_MODULE_18__["getServer"])(workerScript.serverIp);
+                if (scriptServer == null) {
+                    throw Object(_NetscriptEvaluator_js__WEBPACK_IMPORTED_MODULE_25__["makeRuntimeRejectMsg"])(workerScript, "Could not find server. This is a bug in the game. Report to game dev");
+                }
+
+                return Object(_NetscriptEvaluator_js__WEBPACK_IMPORTED_MODULE_25__["runScriptFromScript"])(scriptServer, scriptname, argsForNewScript, workerScript, threads);
             }, 20000);
             if (workerScript.disableLogs.ALL == null && workerScript.disableLogs.spawn == null) {
                 workerScript.scriptRef.log("spawn() will execute " + scriptname + " in 20 seconds");
@@ -31257,10 +31272,7 @@ function NetscriptFunctions(workerScript) {
             return scriptsRunning;
         },
         exit : function() {
-            if (workerScript.checkingRam) {
-                return updateStaticRam("exit", _Constants_js__WEBPACK_IMPORTED_MODULE_6__["CONSTANTS"].ScriptKillRamCost);
-            }
-            updateDynamicRam("exit", _Constants_js__WEBPACK_IMPORTED_MODULE_6__["CONSTANTS"].ScriptKillRamCost);
+            if (workerScript.checkingRam) {return 0;}
             var server = Object(_Server_js__WEBPACK_IMPORTED_MODULE_18__["getServer"])(workerScript.serverIp);
             if (server == null) {
                 throw Object(_NetscriptEvaluator_js__WEBPACK_IMPORTED_MODULE_25__["makeRuntimeRejectMsg"])(workerScript, "Error getting Server for this script in exit(). This is a bug please contact game dev");
diff --git a/doc/source/changelog.rst b/doc/source/changelog.rst
index 44e406d3e..54ae22a3f 100644
--- a/doc/source/changelog.rst
+++ b/doc/source/changelog.rst
@@ -3,6 +3,21 @@
 Changelog
 =========
 
+v0.38.1 - 6/15/2018
+-------------------
+* Bug Fix: Using 'Object.prototype' functions like toLocaleString() or toString() should no longer cause errors in NetscriptJS
+* Implemented by Github user hydroflame:
+    * Accessing the 'window' and 'document' objects in Netscript JS now requires a large amount of RAM (100 GB)
+    * Added game option to suppress travel confirmation
+    * Text on buttons can no longer be highlighted
+    * Bug Fix: Fixed an issue that caused NaN values when exporting Real Estate in Corporations
+    * Bug Fix: Competition and Demand displays in Corporation are now correct (were reversed before)
+    * Added ps() Netscript function
+    * Bug Fix: grow() should no longer return/log a negative value when it runs on a server that's already at max money
+    * Bug Fix: serverExists() Netscript function should now properly return false for non-existent hostname/ips
+    * Bug Fix: Sever's security level should now properly increase when its money is grown to max value
+
+
 v0.38.0 - 6/12/2018
 -------------------
 * New BitNode: BN-12 The Recursion - Implemented by Github user hydroflame
diff --git a/src/NetscriptFunctions.js b/src/NetscriptFunctions.js
index 3f0ab4243..4bb78213c 100644
--- a/src/NetscriptFunctions.js
+++ b/src/NetscriptFunctions.js
@@ -646,7 +646,22 @@ function NetscriptFunctions(workerScript) {
                 throw makeRuntimeRejectMsg(workerScript, "Invalid scriptname or numThreads argument passed to spawn()");
             }
             setTimeout(()=>{
-                NetscriptFunctions(workerScript).run.apply(this, arguments);
+                if (scriptname === undefined) {
+                    throw makeRuntimeRejectMsg(workerScript, "spawn() call has incorrect number of arguments. Usage: spawn(scriptname, numThreads, [arg1], [arg2]...)");
+                }
+                if (isNaN(threads) || threads < 1) {
+                    throw makeRuntimeRejectMsg(workerScript, "Invalid argument for thread count passed into run(). Must be numeric and greater than 0");
+                }
+                var argsForNewScript = [];
+                for (var i = 2; i < arguments.length; ++i) {
+                    argsForNewScript.push(arguments[i]);
+                }
+                var scriptServer = getServer(workerScript.serverIp);
+                if (scriptServer == null) {
+                    throw makeRuntimeRejectMsg(workerScript, "Could not find server. This is a bug in the game. Report to game dev");
+                }
+
+                return runScriptFromScript(scriptServer, scriptname, argsForNewScript, workerScript, threads);
             }, 20000);
             if (workerScript.disableLogs.ALL == null && workerScript.disableLogs.spawn == null) {
                 workerScript.scriptRef.log("spawn() will execute " + scriptname + " in 20 seconds");
@@ -711,10 +726,7 @@ function NetscriptFunctions(workerScript) {
             return scriptsRunning;
         },
         exit : function() {
-            if (workerScript.checkingRam) {
-                return updateStaticRam("exit", CONSTANTS.ScriptKillRamCost);
-            }
-            updateDynamicRam("exit", CONSTANTS.ScriptKillRamCost);
+            if (workerScript.checkingRam) {return 0;}
             var server = getServer(workerScript.serverIp);
             if (server == null) {
                 throw makeRuntimeRejectMsg(workerScript, "Error getting Server for this script in exit(). This is a bug please contact game dev");