diff --git a/01_elements/00_content.ipynb b/01_elements/00_content.ipynb
index 4d6c792..3335486 100644
--- a/01_elements/00_content.ipynb
+++ b/01_elements/00_content.ipynb
@@ -1654,10 +1654,10 @@
    "outputs": [
     {
      "ename": "SyntaxError",
-     "evalue": "invalid syntax (<ipython-input-47-cafa82e54b9c>, line 1)",
+     "evalue": "invalid syntax (73631267.py, line 1)",
      "output_type": "error",
      "traceback": [
-      "\u001b[0;36m  File \u001b[0;32m\"<ipython-input-47-cafa82e54b9c>\"\u001b[0;36m, line \u001b[0;32m1\u001b[0m\n\u001b[0;31m    3.99 $ + 10.40 $\u001b[0m\n\u001b[0m         ^\u001b[0m\n\u001b[0;31mSyntaxError\u001b[0m\u001b[0;31m:\u001b[0m invalid syntax\n"
+      "\u001b[0;36m  Cell \u001b[0;32mIn[47], line 1\u001b[0;36m\u001b[0m\n\u001b[0;31m    3.99 $ + 10.40 $\u001b[0m\n\u001b[0m         ^\u001b[0m\n\u001b[0;31mSyntaxError\u001b[0m\u001b[0;31m:\u001b[0m invalid syntax\n"
      ]
     }
    ],
@@ -1687,10 +1687,10 @@
    "outputs": [
     {
      "ename": "SyntaxError",
-     "evalue": "invalid syntax (<ipython-input-48-499e4d0d0cbb>, line 1)",
+     "evalue": "expected ':' (2545637715.py, line 1)",
      "output_type": "error",
      "traceback": [
-      "\u001b[0;36m  File \u001b[0;32m\"<ipython-input-48-499e4d0d0cbb>\"\u001b[0;36m, line \u001b[0;32m1\u001b[0m\n\u001b[0;31m    for number in numbers\u001b[0m\n\u001b[0m                         ^\u001b[0m\n\u001b[0;31mSyntaxError\u001b[0m\u001b[0;31m:\u001b[0m invalid syntax\n"
+      "\u001b[0;36m  Cell \u001b[0;32mIn[48], line 1\u001b[0;36m\u001b[0m\n\u001b[0;31m    for number in numbers\u001b[0m\n\u001b[0m                         ^\u001b[0m\n\u001b[0;31mSyntaxError\u001b[0m\u001b[0;31m:\u001b[0m expected ':'\n"
      ]
     }
    ],
@@ -1721,10 +1721,10 @@
    "outputs": [
     {
      "ename": "IndentationError",
-     "evalue": "expected an indented block (<ipython-input-49-19398c5f89de>, line 2)",
+     "evalue": "expected an indented block after 'for' statement on line 1 (1544118965.py, line 2)",
      "output_type": "error",
      "traceback": [
-      "\u001b[0;36m  File \u001b[0;32m\"<ipython-input-49-19398c5f89de>\"\u001b[0;36m, line \u001b[0;32m2\u001b[0m\n\u001b[0;31m    print(number)\u001b[0m\n\u001b[0m    ^\u001b[0m\n\u001b[0;31mIndentationError\u001b[0m\u001b[0;31m:\u001b[0m expected an indented block\n"
+      "\u001b[0;36m  Cell \u001b[0;32mIn[49], line 2\u001b[0;36m\u001b[0m\n\u001b[0;31m    print(number)\u001b[0m\n\u001b[0m    ^\u001b[0m\n\u001b[0;31mIndentationError\u001b[0m\u001b[0;31m:\u001b[0m expected an indented block after 'for' statement on line 1\n"
      ]
     }
    ],
@@ -1775,7 +1775,7 @@
      "traceback": [
       "\u001b[0;31m---------------------------------------------------------------------------\u001b[0m",
       "\u001b[0;31mZeroDivisionError\u001b[0m                         Traceback (most recent call last)",
-      "\u001b[0;32m<ipython-input-50-bc757c3fda29>\u001b[0m in \u001b[0;36m<module>\u001b[0;34m\u001b[0m\n\u001b[0;32m----> 1\u001b[0;31m \u001b[0;36m1\u001b[0m \u001b[0;34m/\u001b[0m \u001b[0;36m0\u001b[0m\u001b[0;34m\u001b[0m\u001b[0;34m\u001b[0m\u001b[0m\n\u001b[0m",
+      "Cell \u001b[0;32mIn[50], line 1\u001b[0m\n\u001b[0;32m----> 1\u001b[0m \u001b[38;5;241;43m1\u001b[39;49m\u001b[43m \u001b[49m\u001b[38;5;241;43m/\u001b[39;49m\u001b[43m \u001b[49m\u001b[38;5;241;43m0\u001b[39;49m\n",
       "\u001b[0;31mZeroDivisionError\u001b[0m: division by zero"
      ]
     }
@@ -2156,7 +2156,7 @@
    "name": "python",
    "nbconvert_exporter": "python",
    "pygments_lexer": "ipython3",
-   "version": "3.8.6"
+   "version": "3.12.2"
   },
   "livereveal": {
    "auto_select": "code",
diff --git a/01_elements/01_exercises.ipynb b/01_elements/01_exercises.ipynb
index d073a26..592d48a 100644
--- a/01_elements/01_exercises.ipynb
+++ b/01_elements/01_exercises.ipynb
@@ -151,7 +151,7 @@
    "name": "python",
    "nbconvert_exporter": "python",
    "pygments_lexer": "ipython3",
-   "version": "3.8.6"
+   "version": "3.12.2"
   },
   "toc": {
    "base_numbering": 1,
diff --git a/01_elements/02_exercises.ipynb b/01_elements/02_exercises.ipynb
index 5ae269c..2ff9c45 100644
--- a/01_elements/02_exercises.ipynb
+++ b/01_elements/02_exercises.ipynb
@@ -197,7 +197,7 @@
    "name": "python",
    "nbconvert_exporter": "python",
    "pygments_lexer": "ipython3",
-   "version": "3.8.6"
+   "version": "3.12.2"
   },
   "toc": {
    "base_numbering": 1,
diff --git a/01_elements/03_content.ipynb b/01_elements/03_content.ipynb
index 74c3477..e7886f8 100644
--- a/01_elements/03_content.ipynb
+++ b/01_elements/03_content.ipynb
@@ -350,7 +350,7 @@
      "traceback": [
       "\u001b[0;31m---------------------------------------------------------------------------\u001b[0m",
       "\u001b[0;31mNameError\u001b[0m                                 Traceback (most recent call last)",
-      "\u001b[0;32m<ipython-input-13-1748287bc46a>\u001b[0m in \u001b[0;36m<module>\u001b[0;34m\u001b[0m\n\u001b[0;32m----> 1\u001b[0;31m \u001b[0mvariable\u001b[0m\u001b[0;34m\u001b[0m\u001b[0;34m\u001b[0m\u001b[0m\n\u001b[0m",
+      "Cell \u001b[0;32mIn[13], line 1\u001b[0m\n\u001b[0;32m----> 1\u001b[0m \u001b[43mvariable\u001b[49m\n",
       "\u001b[0;31mNameError\u001b[0m: name 'variable' is not defined"
      ]
     }
@@ -419,6 +419,7 @@
       "text/plain": [
        "['In',\n",
        " 'Out',\n",
+       " 'Path',\n",
        " '_',\n",
        " '_10',\n",
        " '_11',\n",
@@ -435,6 +436,7 @@
        " '__loader__',\n",
        " '__name__',\n",
        " '__package__',\n",
+       " '__session__',\n",
        " '__spec__',\n",
        " '_dh',\n",
        " '_i',\n",
@@ -457,11 +459,17 @@
        " '_ii',\n",
        " '_iii',\n",
        " '_oh',\n",
+       " 'atexit',\n",
        " 'exit',\n",
        " 'get_ipython',\n",
+       " 'history',\n",
+       " 'history_path',\n",
+       " 'open',\n",
+       " 'os',\n",
        " 'quit',\n",
-       " 'register_readline_completion',\n",
-       " 'sys']"
+       " 'readline',\n",
+       " 'state_home',\n",
+       " 'write_history']"
       ]
      },
      "execution_count": 15,
@@ -636,10 +644,10 @@
    "outputs": [
     {
      "ename": "SyntaxError",
-     "evalue": "cannot assign to operator (<ipython-input-23-ec51dae29567>, line 1)",
+     "evalue": "cannot assign to expression here. Maybe you meant '==' instead of '='? (202417111.py, line 1)",
      "output_type": "error",
      "traceback": [
-      "\u001b[0;36m  File \u001b[0;32m\"<ipython-input-23-ec51dae29567>\"\u001b[0;36m, line \u001b[0;32m1\u001b[0m\n\u001b[0;31m    address@work = \"WHU, Burgplatz 2, Vallendar\"\u001b[0m\n\u001b[0m    ^\u001b[0m\n\u001b[0;31mSyntaxError\u001b[0m\u001b[0;31m:\u001b[0m cannot assign to operator\n"
+      "\u001b[0;36m  Cell \u001b[0;32mIn[23], line 1\u001b[0;36m\u001b[0m\n\u001b[0;31m    address@work = \"WHU, Burgplatz 2, Vallendar\"\u001b[0m\n\u001b[0m    ^\u001b[0m\n\u001b[0;31mSyntaxError\u001b[0m\u001b[0;31m:\u001b[0m cannot assign to expression here. Maybe you meant '==' instead of '='?\n"
      ]
     }
    ],
@@ -1685,7 +1693,7 @@
    "name": "python",
    "nbconvert_exporter": "python",
    "pygments_lexer": "ipython3",
-   "version": "3.8.6"
+   "version": "3.12.2"
   },
   "livereveal": {
    "auto_select": "code",
diff --git a/01_elements/04_exercises.ipynb b/01_elements/04_exercises.ipynb
index f1cca6d..3fa9301 100644
--- a/01_elements/04_exercises.ipynb
+++ b/01_elements/04_exercises.ipynb
@@ -191,7 +191,7 @@
    "name": "python",
    "nbconvert_exporter": "python",
    "pygments_lexer": "ipython3",
-   "version": "3.8.6"
+   "version": "3.12.2"
   },
   "toc": {
    "base_numbering": 1,
diff --git a/01_elements/05_summary.ipynb b/01_elements/05_summary.ipynb
index c3b6339..f57bb09 100644
--- a/01_elements/05_summary.ipynb
+++ b/01_elements/05_summary.ipynb
@@ -110,7 +110,7 @@
    "name": "python",
    "nbconvert_exporter": "python",
    "pygments_lexer": "ipython3",
-   "version": "3.8.6"
+   "version": "3.12.2"
   },
   "livereveal": {
    "auto_select": "code",
diff --git a/01_elements/06_review.ipynb b/01_elements/06_review.ipynb
index d975603..33ff535 100644
--- a/01_elements/06_review.ipynb
+++ b/01_elements/06_review.ipynb
@@ -194,7 +194,7 @@
    "name": "python",
    "nbconvert_exporter": "python",
    "pygments_lexer": "ipython3",
-   "version": "3.8.6"
+   "version": "3.12.2"
   },
   "toc": {
    "base_numbering": 1,
diff --git a/01_elements/07_resources.ipynb b/01_elements/07_resources.ipynb
index 9d46189..0ac2b87 100644
--- a/01_elements/07_resources.ipynb
+++ b/01_elements/07_resources.ipynb
@@ -83,7 +83,7 @@
    "name": "python",
    "nbconvert_exporter": "python",
    "pygments_lexer": "ipython3",
-   "version": "3.8.6"
+   "version": "3.12.2"
   },
   "livereveal": {
    "auto_select": "code",