diff --git a/.github/workflows/main.yml b/.github/workflows/main.yml
index 857907b35e..bd52b3cc51 100644
--- a/.github/workflows/main.yml
+++ b/.github/workflows/main.yml
@@ -135,10 +135,6 @@ jobs:
           haxelib install hxp --quiet
           haxelib install utest --quiet
 
-      - name: Enable HXCPP compile cache
-        run: |
-          echo "HXCPP_COMPILE_CACHE=~/.hxcpp" >> $GITHUB_ENV
-
       - name: Rebuild Lime tools
         run: |
           haxelib dev lime ${{ github.workspace }}
@@ -728,7 +724,7 @@ jobs:
     runs-on: windows-latest
     strategy:
       matrix:
-        haxe-version: [4.0.5, 4.1.5, 4.2.5, 4.3.6]
+        haxe-version: [4.0.5, 4.1.5, 4.2.5, 4.3.7]
     steps:
 
       - uses: actions/checkout@v6
@@ -882,7 +878,7 @@ jobs:
     runs-on: ubuntu-22.04
     strategy:
       matrix:
-        haxe-version: [3.4.7, 4.0.5, 4.1.5, 4.2.5, 4.3.6]
+        haxe-version: [3.4.7, 4.0.5, 4.1.5, 4.2.5, 4.3.7]
     steps:
 
       - uses: actions/checkout@v6
diff --git a/src/lime/_internal/backend/native/NativeApplication.hx b/src/lime/_internal/backend/native/NativeApplication.hx
index 1be8e8df77..e8bcd64538 100644
--- a/src/lime/_internal/backend/native/NativeApplication.hx
+++ b/src/lime/_internal/backend/native/NativeApplication.hx
@@ -689,7 +689,15 @@ class NativeApplication
 				});
 			}
 		}
-		#if (haxe_ver >= 4.2)
+		#if haxe5
+		#if target.threaded
+		sys.thread.Thread.current().events.loopOnce();
+		#else
+		// Duplicate code required because Haxe 3 can't handle
+		// #if (haxe_ver >= 4.2 && target.threaded)
+		@:privateAccess haxe.EntryPoint.processEvents();
+		#end
+		#elseif (haxe_ver >= 4.2)
 		#if target.threaded
 		sys.thread.Thread.current().events.progress();
 		#else
diff --git a/src/lime/_internal/utils/MainLoop.hx b/src/lime/_internal/utils/MainLoop.hx
new file mode 100644
index 0000000000..b00b1a32cd
--- /dev/null
+++ b/src/lime/_internal/utils/MainLoop.hx
@@ -0,0 +1,24 @@
+package lime._internal.utils;
+
+#if haxe5
+import haxe.EventLoop;
+
+/**
+ * Wrapper for compatibility with Haxe 5.
+ */
+@:forwardStatics
+abstract MainLoop(haxe.MainLoop)
+{
+	public static inline function runInMainThread(f:Void->Void)
+	{
+		EventLoop.main.run(f);
+	}
+
+	public static inline function addThread(f:Void->Void)
+	{
+		EventLoop.addTask(f);
+	}
+}
+#else
+typedef MainLoop = haxe.MainLoop;
+#end
diff --git a/src/lime/app/Promise.hx b/src/lime/app/Promise.hx
index 96b59fdc7e..91462c00d8 100644
--- a/src/lime/app/Promise.hx
+++ b/src/lime/app/Promise.hx
@@ -1,5 +1,6 @@
 package lime.app;
 
+import lime._internal.utils.MainLoop;
 import lime.app.Future;
 import lime.system.ThreadPool;
 import lime.system.WorkOutput;
@@ -105,7 +106,7 @@ class Promise<T>
 	{
 		if (!ThreadPool.isMainThread())
 		{
-			haxe.MainLoop.runInMainThread(complete.bind(data));
+			MainLoop.runInMainThread(complete.bind(data));
 			return this;
 		}
 
@@ -197,7 +198,7 @@ class Promise<T>
 	{
 		if (!ThreadPool.isMainThread())
 		{
-			haxe.MainLoop.runInMainThread(error.bind(msg));
+			MainLoop.runInMainThread(error.bind(msg));
 			return this;
 		}
 
@@ -236,7 +237,7 @@ class Promise<T>
 	{
 		if (!ThreadPool.isMainThread())
 		{
-			haxe.MainLoop.runInMainThread(this.progress.bind(progress, total));
+			MainLoop.runInMainThread(this.progress.bind(progress, total));
 			return this;
 		}