From d1b1baeae5f66936b87423e52038b16a3babf7a5 Mon Sep 17 00:00:00 2001
From: Don Jayamanne <don.jayamanne@outlook.com>
Date: Sat, 24 May 2025 15:37:22 +1000
Subject: [PATCH 1/2] Some logging

---
 .../execution/cellExecutionMessageHandler.ts  | 19 ++++++++++++++++++-
 src/test/index.node.ts                        |  1 +
 2 files changed, 19 insertions(+), 1 deletion(-)

diff --git a/src/kernels/execution/cellExecutionMessageHandler.ts b/src/kernels/execution/cellExecutionMessageHandler.ts
index 7b136309471..8672ef263c3 100644
--- a/src/kernels/execution/cellExecutionMessageHandler.ts
+++ b/src/kernels/execution/cellExecutionMessageHandler.ts
@@ -496,6 +496,14 @@ export class CellExecutionMessageHandler implements IDisposable {
             this.execution?.start(this.startTime);
             logger.debug(`Kernel acknowledged execution of cell ${this.cell.index} @ ${this.startTime}`);
         }
+        if (!msg.header) {
+            try {
+                // eslint-disable-next-line @typescript-eslint/no-explicit-any
+                logger.warn(`Got a message without a header ${JSON.stringify(msg)}`);
+            } catch {
+                logger.warn(`Got a message without a header, no idea what it is`, msg);
+            }
+        }
 
         // eslint-disable-next-line @typescript-eslint/no-require-imports
         const jupyterLab = require('@jupyterlab/services') as typeof import('@jupyterlab/services');
@@ -527,7 +535,16 @@ export class CellExecutionMessageHandler implements IDisposable {
         } else if (jupyterLab.KernelMessage.isCommCloseMsg(msg)) {
             // Noop.
         } else {
-            logger.warn(`Unknown message ${msg.header.msg_type} : hasData=${'data' in msg.content}`);
+            if (msg.header) {
+                logger.warn(`Unknown message ${msg.header.msg_type} : hasData=${'data' in msg.content}`);
+            } else {
+                try {
+                    // eslint-disable-next-line @typescript-eslint/no-explicit-any
+                    logger.warn(`Unknown message ${JSON.stringify(msg)}`);
+                } catch {
+                    logger.warn(`Unknown message, no idea what it is`, msg);
+                }
+            }
         }
 
         // Set execution count, all messages should have it
diff --git a/src/test/index.node.ts b/src/test/index.node.ts
index 4091cd57e3e..ed79d0d6060 100644
--- a/src/test/index.node.ts
+++ b/src/test/index.node.ts
@@ -65,6 +65,7 @@ process.on('unhandledRejection', (ex: Error, _a) => {
             msg.includes('View Jupyter [log](command:jupyter.viewOutput)')) ||
         msg.includes('Channel has been closed') ||
         msg.includes('Error: custom request failed') ||
+        msg.includes('resources/app/extensions/github-authentication/dist') || // Ignore known external issues, https://github.com/microsoft/vscode/issues/249697
         msg.includes('ms-python.python') || // We don't care about unhanded promise rejections from the Python extension.
         msg.includes('ms-python.isort') || // We don't care about unhanded promise rejections from the Python related extensions.
         msg.includes('extensions/git/dist/main.js') // git extension often throws errors from calling extension APIs after EH has been disconnected

From 66f099a122b56b7b0d7c4a109bc0e6527adf9fc5 Mon Sep 17 00:00:00 2001
From: Don Jayamanne <don.jayamanne@outlook.com>
Date: Fri, 30 May 2025 08:15:43 +1000
Subject: [PATCH 2/2] Updates

---
 package-lock.json | 2 +-
 package.json      | 2 +-
 2 files changed, 2 insertions(+), 2 deletions(-)

diff --git a/package-lock.json b/package-lock.json
index fac8cd2c7ef..b57dee08341 100644
--- a/package-lock.json
+++ b/package-lock.json
@@ -229,7 +229,7 @@
                 "webpack-cli": "^5.1.4"
             },
             "engines": {
-                "vscode": "^1.101.0"
+                "vscode": "^1.100.0"
             },
             "optionalDependencies": {
                 "fsevents": "^2.3.2"
diff --git a/package.json b/package.json
index 75fe7a0eb48..f9e8ae440c2 100644
--- a/package.json
+++ b/package.json
@@ -29,7 +29,7 @@
         "theme": "light"
     },
     "engines": {
-        "vscode": "^1.101.0"
+        "vscode": "^1.100.0"
     },
     "l10n": "./l10n",
     "extensionKind": [