diff --git a/PluginsAndFeatures/azure-toolkit-for-intellij/gradle.properties b/PluginsAndFeatures/azure-toolkit-for-intellij/gradle.properties
index af28241883..17b74563f0 100644
--- a/PluginsAndFeatures/azure-toolkit-for-intellij/gradle.properties
+++ b/PluginsAndFeatures/azure-toolkit-for-intellij/gradle.properties
@@ -5,7 +5,7 @@ org.gradle.jvmargs='-Duser.language=en'
 sources=false
 
 intellij_version=IC-232.6095-EAP-CANDIDATE-SNAPSHOT
-rider_version=RD-2023.2-EAP2-SNAPSHOT
+rider_version=RD-2023.2-EAP5-SNAPSHOT
 #rider_version=RD-2023.1
 build_common_code_with=rider
 intellij_plugin_name=azure-toolkit-for-intellij
diff --git a/PluginsAndFeatures/azure-toolkit-for-intellij/resources/META-INF/platformPlugin.xml b/PluginsAndFeatures/azure-toolkit-for-intellij/resources/META-INF/platformPlugin.xml
index ebf136fd79..b0e2fdf1ba 100644
--- a/PluginsAndFeatures/azure-toolkit-for-intellij/resources/META-INF/platformPlugin.xml
+++ b/PluginsAndFeatures/azure-toolkit-for-intellij/resources/META-INF/platformPlugin.xml
@@ -7,6 +7,7 @@
         <h4>Added:</h4>
         <ul>
           <li>Compatibility with Rider 2023.2</li>
+          <li>Azure Functions: Support debugging .NET 4.8 isolated worker projects (<a href="https://github.com/JetBrains/azure-tools-for-intellij/issues/691">#691</a>)</li>
         </ul>
     </html>
     ]]>
diff --git a/PluginsAndFeatures/azure-toolkit-for-intellij/rider/resources/META-INF/plugin.xml b/PluginsAndFeatures/azure-toolkit-for-intellij/rider/resources/META-INF/plugin.xml
index 21d85b6e1b..b701a66663 100644
--- a/PluginsAndFeatures/azure-toolkit-for-intellij/rider/resources/META-INF/plugin.xml
+++ b/PluginsAndFeatures/azure-toolkit-for-intellij/rider/resources/META-INF/plugin.xml
@@ -26,6 +26,7 @@
         <p>[3.50.0-2023.2]</p>
         <ul>
           <li>Compatibility with Rider 2023.2</li>
+          <li>Azure Functions: Support debugging .NET 4.8 isolated worker projects (<a href="https://github.com/JetBrains/azure-tools-for-intellij/issues/691">#691</a>)</li>
         </ul>
         <p>[3.50.0-2023.1]</p>
         <ul>
diff --git a/PluginsAndFeatures/azure-toolkit-for-intellij/rider/src/org/jetbrains/plugins/azure/functions/run/AzureFunctionsDotNetCoreRuntime.kt b/PluginsAndFeatures/azure-toolkit-for-intellij/rider/src/org/jetbrains/plugins/azure/functions/run/AzureFunctionsDotNetCoreRuntime.kt
index 1757357d62..3084814556 100644
--- a/PluginsAndFeatures/azure-toolkit-for-intellij/rider/src/org/jetbrains/plugins/azure/functions/run/AzureFunctionsDotNetCoreRuntime.kt
+++ b/PluginsAndFeatures/azure-toolkit-for-intellij/rider/src/org/jetbrains/plugins/azure/functions/run/AzureFunctionsDotNetCoreRuntime.kt
@@ -46,7 +46,7 @@ class AzureFunctionsDotNetCoreRuntime(val coreToolsInfo: FunctionsCoreToolsInfo,
     override fun createDebugState(dotNetExecutable: DotNetExecutable, executionEnvironment: ExecutionEnvironment) : IDotNetDebugProfileState {
         return when (workerRuntime) {
             FunctionsWorkerRuntime.DotNetDefault -> DotNetCoreDebugProfile(DotNetCoreRuntime(coreToolsInfo.coreToolsExecutable), dotNetExecutable, executionEnvironment, coreToolsInfo.coreToolsExecutable)
-            FunctionsWorkerRuntime.DotNetIsolated -> AzureFunctionsDotNetCoreIsolatedDebugProfile(dotNetExecutable, this, executionEnvironment)
+            FunctionsWorkerRuntime.DotNetIsolated -> AzureFunctionsIsolatedDebugProfile(dotNetExecutable, this, executionEnvironment)
         }
     }
 
diff --git a/PluginsAndFeatures/azure-toolkit-for-intellij/rider/src/org/jetbrains/plugins/azure/functions/run/AzureFunctionsDotNetCoreIsolatedDebugProfile.kt b/PluginsAndFeatures/azure-toolkit-for-intellij/rider/src/org/jetbrains/plugins/azure/functions/run/AzureFunctionsIsolatedDebugProfile.kt
similarity index 86%
rename from PluginsAndFeatures/azure-toolkit-for-intellij/rider/src/org/jetbrains/plugins/azure/functions/run/AzureFunctionsDotNetCoreIsolatedDebugProfile.kt
rename to PluginsAndFeatures/azure-toolkit-for-intellij/rider/src/org/jetbrains/plugins/azure/functions/run/AzureFunctionsIsolatedDebugProfile.kt
index ad983e859a..8ba5229a52 100644
--- a/PluginsAndFeatures/azure-toolkit-for-intellij/rider/src/org/jetbrains/plugins/azure/functions/run/AzureFunctionsDotNetCoreIsolatedDebugProfile.kt
+++ b/PluginsAndFeatures/azure-toolkit-for-intellij/rider/src/org/jetbrains/plugins/azure/functions/run/AzureFunctionsIsolatedDebugProfile.kt
@@ -37,6 +37,7 @@ import com.intellij.openapi.diagnostic.Logger
 import com.intellij.openapi.progress.ProgressIndicator
 import com.intellij.openapi.progress.ProgressManager
 import com.intellij.openapi.progress.Task
+import com.intellij.openapi.rd.util.withBackgroundContext
 import com.intellij.openapi.util.Key
 import com.intellij.openapi.util.io.FileUtil
 import com.intellij.util.execution.ParametersListUtil
@@ -46,10 +47,15 @@ import com.jetbrains.rdclient.util.idea.pumpMessages
 import com.jetbrains.rider.debugger.DebuggerHelperHost
 import com.jetbrains.rider.debugger.DebuggerWorkerPlatform
 import com.jetbrains.rider.debugger.DebuggerWorkerProcessHandler
+import com.jetbrains.rider.debugger.RiderDebuggerBundle
+import com.jetbrains.rider.model.DesktopClrRuntime
 import com.jetbrains.rider.model.debuggerWorker.DebuggerStartInfoBase
+import com.jetbrains.rider.model.debuggerWorker.DotNetClrAttachStartInfo
 import com.jetbrains.rider.model.debuggerWorker.DotNetCoreAttachStartInfo
 import com.jetbrains.rider.run.*
 import com.jetbrains.rider.run.dotNetCore.DotNetCoreAttachProfileState
+import com.jetbrains.rider.run.dotNetCore.getWorkerPlatform
+import com.jetbrains.rider.run.msNet.MsNetAttachProfileState
 import com.jetbrains.rider.runtime.DotNetExecutable
 import com.jetbrains.rider.runtime.DotNetRuntime
 import com.jetbrains.rider.runtime.apply
@@ -59,14 +65,14 @@ import org.jetbrains.plugins.azure.RiderAzureBundle
 import java.io.File
 import java.time.Duration
 
-class AzureFunctionsDotNetCoreIsolatedDebugProfile(
+class AzureFunctionsIsolatedDebugProfile(
         private val dotNetExecutable: DotNetExecutable,
         private val dotNetRuntime: DotNetRuntime,
         executionEnvironment: ExecutionEnvironment)
     : DebugProfileStateBase(executionEnvironment) {
 
     companion object {
-        private val logger = Logger.getInstance(AzureFunctionsDotNetCoreIsolatedDebugProfile::class.java)
+        private val logger = Logger.getInstance(AzureFunctionsIsolatedDebugProfile::class.java)
         private val waitDuration = Duration.ofMinutes(1)
         private const val DOTNET_ISOLATED_DEBUG_ARGUMENT = "--dotnet-isolated-debug"
         private const val DOTNET_ENABLE_JSON_OUTPUT_ARGUMENT = "--enable-json-output"
@@ -75,6 +81,7 @@ class AzureFunctionsDotNetCoreIsolatedDebugProfile(
     }
 
     private var processId = 0
+    private var isNetFrameworkProcess = false
     private lateinit var targetProcessHandler: ProcessHandler
     private lateinit var console: ConsoleView
 
@@ -117,18 +124,37 @@ class AzureFunctionsDotNetCoreIsolatedDebugProfile(
                     RiderAzureBundle.message("run_config.run_function_app.debug.notification.isolated_worker_pid_unspecified"))
         }
 
-        val targetProcess = ProcessListUtil.getProcessList().firstOrNull { it.pid == processId }
+        // Get process info
+        val targetProcess = withBackgroundContext {
+            ProcessListUtil.getProcessList().firstOrNull { it.pid == processId }
+        }
+
         if (targetProcess == null) {
             logger.warn("Unable to find target process with pid $processId")
             // Create debugger worker info
             return createWorkerRunInfoFor(port, DebuggerWorkerPlatform.AnyCpu)
         }
 
+        // Determine process architecture, and whether it is .NET / .NET Core
+        val processExecutablePath = ParametersListUtil.parse(targetProcess.commandLine).firstOrNull()
         val processArchitecture = DebuggerHelperHost.getInstance(executionEnvironment.project)
                 .getProcessArchitecture(lifetime, processId)
+        val processTargetFramework = processExecutablePath?.let {
+            DebuggerHelperHost.getInstance(executionEnvironment.project)
+                    .getAssemblyTargetFramework(processExecutablePath!!, lifetime)
+        }
 
-        return DotNetCoreAttachProfileState(targetProcess, executionEnvironment, processArchitecture)
-                .createWorkerRunInfo(lifetime, helper, port)
+        isNetFrameworkProcess = processExecutablePath?.endsWith("dotnet.exe") == false && (processTargetFramework?.isNetFramework ?: false)
+        return if (!isNetFrameworkProcess) {
+            // .NET Core
+            DotNetCoreAttachProfileState(targetProcess, executionEnvironment, processArchitecture)
+                    .createWorkerRunInfo(lifetime, helper, port)
+        } else {
+            // .NET Framework
+            val clrRuntime = DesktopClrRuntime("")
+            MsNetAttachProfileState(targetProcess, processArchitecture.getWorkerPlatform(), clrRuntime, executionEnvironment, RiderDebuggerBundle.message("MsNetAttachDebugger.display.name", clrRuntime.version))
+                    .createWorkerRunInfo(lifetime, helper, port)
+        }
     }
 
     private fun launchAzureFunctionsHost() {
@@ -280,5 +306,11 @@ class AzureFunctionsDotNetCoreIsolatedDebugProfile(
     }
 
     override suspend fun createModelStartInfo(lifetime: Lifetime): DebuggerStartInfoBase
-        = DotNetCoreAttachStartInfo(processId)
+        = if (!isNetFrameworkProcess) {
+            // .NET Core
+            DotNetCoreAttachStartInfo(processId)
+        } else {
+            // .NET Framework
+            DotNetClrAttachStartInfo("", processId)
+        }
 }
\ No newline at end of file
diff --git a/PluginsAndFeatures/azure-toolkit-for-intellij/rider/src/org/jetbrains/plugins/azure/storage/azurite/AzuriteBeforeRunTaskProvider.kt b/PluginsAndFeatures/azure-toolkit-for-intellij/rider/src/org/jetbrains/plugins/azure/storage/azurite/AzuriteBeforeRunTaskProvider.kt
index 8c6235420d..407a009159 100644
--- a/PluginsAndFeatures/azure-toolkit-for-intellij/rider/src/org/jetbrains/plugins/azure/storage/azurite/AzuriteBeforeRunTaskProvider.kt
+++ b/PluginsAndFeatures/azure-toolkit-for-intellij/rider/src/org/jetbrains/plugins/azure/storage/azurite/AzuriteBeforeRunTaskProvider.kt
@@ -30,6 +30,7 @@ import com.intellij.openapi.actionSystem.ActionPlaces
 import com.intellij.openapi.actionSystem.DataContext
 import com.intellij.openapi.actionSystem.ex.ActionUtil
 import com.intellij.openapi.actionSystem.impl.SimpleDataContext
+import com.intellij.openapi.application.ApplicationManager
 import com.intellij.openapi.util.Key
 import icons.CommonIcons
 import org.jetbrains.plugins.azure.RiderAzureBundle
@@ -71,12 +72,14 @@ class AzuriteBeforeRunTaskProvider : BeforeRunTaskProvider<AzuriteBeforeRunTask>
 
         val project = configuration.project
 
-        ActionUtil.invokeAction(
-                StartAzuriteAction(),
-                SimpleDataContext.getProjectContext(project),
-                ActionPlaces.INTENTION_MENU,
-                null,
-                null)
+        ApplicationManager.getApplication().invokeLater {
+            ActionUtil.invokeAction(
+                    StartAzuriteAction(),
+                    SimpleDataContext.getProjectContext(project),
+                    ActionPlaces.INTENTION_MENU,
+                    null,
+                    null)
+        }
 
         return true
     }