Additional comments and refinements

week5/day4.ipynb

@@ -294,7 +294,31 @@
    "id": "9468860b-86a2-41df-af01-b2400cc985be",
    "metadata": {},
    "source": [
-    "## Time to use LangChain to bring it all together"
+    "# Time to use LangChain to bring it all together"
+   ]
+  },
+  {
+   "cell_type": "markdown",
+   "id": "8ba8a5e7-965d-4770-a12d-532aff50c4b5",
+   "metadata": {},
+   "source": [
+    "<table style=\"margin: 0; text-align: left;\">\n",
+    "    <tr>\n",
+    "        <td style=\"width: 150px; height: 150px; vertical-align: middle;\">\n",
+    "            <img src=\"../important.jpg\" width=\"150\" height=\"150\" style=\"display: block;\" />\n",
+    "        </td>\n",
+    "        <td>\n",
+    "            <h2 style=\"color:#900;\">PLEASE READ ME! Ignoring the Deprecation Warning</h2>\n",
+    "            <span style=\"color:#900;\">When you run the next cell, you will get a LangChainDeprecationWarning \n",
+    "            about the simple way we use LangChain memory. They ask us to migrate to their new approach for memory. \n",
+    "            I feel quite conflicted about this. The new approach involves moving to LangGraph and getting deep into their ecosystem.\n",
+    "            There's a fair amount of learning and coding in LangGraph, frankly without much benefit in our case.<br/><br/>\n",
+    "            I'm going to think about whether/how to incorporate it in the course, but for now please ignore the Depreciation Warning and\n",
+    "            use the code as is; LangChain are not expected to remove ConversationBufferMemory any time soon.\n",
+    "            </span>\n",
+    "        </td>\n",
+    "    </tr>\n",
+    "</table>"
    ]
   },
   {