diff --git a/gradle.properties b/gradle.properties
index 751aaa3676..b0c334c3b3 100644
--- a/gradle.properties
+++ b/gradle.properties
@@ -1,7 +1,7 @@
 # Copied from kotlinc
 org.gradle.jvmargs=-Duser.country=US -Dkotlin.daemon.jvm.options=-Xmx2200m -Dfile.encoding=UTF-8
 
-kotlinBaseVersion=1.9.20-dev-6963
+kotlinBaseVersion=1.9.20-dev-9102
 agpBaseVersion=7.0.0
 intellijVersion=213.7172.25
 junitVersion=4.13.1
@@ -9,7 +9,7 @@ junit5Version=5.8.2
 junitPlatformVersion=1.8.2
 googleTruthVersion=1.1
 
-aaKotlinBaseVersion=1.9.20-dev-6963
+aaKotlinBaseVersion=1.9.20-dev-9102
 aaIntellijVersion=213.7172.25
 aaGuavaVersion=29.0-jre
 aaAsmVersion=9.0
diff --git a/kotlin-analysis-api/src/main/kotlin/com/google/devtools/ksp/impl/KotlinSymbolProcessing.kt b/kotlin-analysis-api/src/main/kotlin/com/google/devtools/ksp/impl/KotlinSymbolProcessing.kt
index 2f583cf5db..94e81975de 100644
--- a/kotlin-analysis-api/src/main/kotlin/com/google/devtools/ksp/impl/KotlinSymbolProcessing.kt
+++ b/kotlin-analysis-api/src/main/kotlin/com/google/devtools/ksp/impl/KotlinSymbolProcessing.kt
@@ -78,19 +78,8 @@ import org.jetbrains.kotlin.analysis.project.structure.builder.buildKtSdkModule
 import org.jetbrains.kotlin.analysis.project.structure.builder.buildKtSourceModule
 import org.jetbrains.kotlin.analysis.project.structure.impl.KtModuleProviderImpl
 import org.jetbrains.kotlin.analysis.project.structure.impl.getSourceFilePaths
-import org.jetbrains.kotlin.analysis.providers.KotlinAnnotationsResolverFactory
-import org.jetbrains.kotlin.analysis.providers.KotlinDeclarationProviderFactory
-import org.jetbrains.kotlin.analysis.providers.KotlinDeclarationProviderMerger
-import org.jetbrains.kotlin.analysis.providers.KotlinModificationTrackerFactory
-import org.jetbrains.kotlin.analysis.providers.KotlinPackageProviderFactory
-import org.jetbrains.kotlin.analysis.providers.KotlinPsiDeclarationProviderFactory
-import org.jetbrains.kotlin.analysis.providers.KotlinResolutionScopeProvider
-import org.jetbrains.kotlin.analysis.providers.PackagePartProviderFactory
-import org.jetbrains.kotlin.analysis.providers.impl.KotlinByModulesResolutionScopeProvider
-import org.jetbrains.kotlin.analysis.providers.impl.KotlinStaticAnnotationsResolverFactory
-import org.jetbrains.kotlin.analysis.providers.impl.KotlinStaticDeclarationProviderMerger
-import org.jetbrains.kotlin.analysis.providers.impl.KotlinStaticModificationTrackerFactory
-import org.jetbrains.kotlin.analysis.providers.impl.KotlinStaticPsiDeclarationProviderFactory
+import org.jetbrains.kotlin.analysis.providers.*
+import org.jetbrains.kotlin.analysis.providers.impl.*
 import org.jetbrains.kotlin.cli.common.config.addKotlinSourceRoot
 import org.jetbrains.kotlin.cli.common.config.addKotlinSourceRoots
 import org.jetbrains.kotlin.cli.common.config.kotlinSourceRoots
@@ -225,13 +214,11 @@ class KotlinSymbolProcessing(
 
         // register services and build session
         val ktModuleProviderImpl = projectStructureProvider as KtModuleProviderImpl
-        val modules = ktModuleProviderImpl.mainModules
-        val allSourceFiles = ktModuleProviderImpl.allSourceFiles()
+        val modules = ktModuleProviderImpl.allKtModules
+        val allSourceFiles = ktModuleProviderImpl.allSourceFiles
         StandaloneProjectFactory.registerServicesForProjectEnvironment(
             kotlinCoreProjectEnvironment,
             projectStructureProvider,
-            modules,
-            allSourceFiles,
         )
         val ktFiles = allSourceFiles.filterIsInstance<KtFile>()
         val libraryRoots = StandaloneProjectFactory.getAllBinaryRoots(modules, kotlinCoreProjectEnvironment)
@@ -280,6 +267,10 @@ class KotlinSymbolProcessing(
     ) {
         val project = kotlinCoreProjectEnvironment.project
         project.apply {
+            registerService(
+                KotlinMessageBusProvider::class.java,
+                KotlinProjectMessageBusProvider::class.java
+            )
             FirStandaloneServiceRegistrar.registerProjectServices(project)
             FirStandaloneServiceRegistrar.registerProjectExtensionPoints(project)
             FirStandaloneServiceRegistrar.registerProjectModelServices(
@@ -291,6 +282,10 @@ class KotlinSymbolProcessing(
                 KotlinModificationTrackerFactory::class.java,
                 KotlinStaticModificationTrackerFactory::class.java
             )
+            registerService(
+                KotlinGlobalModificationService::class.java,
+                KotlinStaticGlobalModificationService::class.java
+            )
             registerService(
                 KtLifetimeTokenProvider::class.java,
                 KtReadActionConfinementLifetimeTokenProvider::class.java
@@ -471,8 +466,7 @@ class KotlinSymbolProcessing(
                 processors.forEach { it.finish() }
             } else {
                 // Drop caches
-                KotlinModificationTrackerFactory.getService(project)
-                    .incrementModificationsCount(includeBinaryTrackers = false)
+                KotlinGlobalModificationService.getInstance(project).publishGlobalModuleStateModification()
                 KtAnalysisSessionProvider.getInstance(project).clearCaches()
                 psiManager.dropResolveCaches()
                 psiManager.dropPsiCaches()