diff --git a/Misc/05-RNN.ipynb b/Misc/05-RNN.ipynb
new file mode 100644
index 0000000000000000000000000000000000000000..1c61ec98129c3d090985eb1e84a9d906f6bdba36
--- /dev/null
+++ b/Misc/05-RNN.ipynb
@@ -0,0 +1,79 @@
+{
+ "cells": [
+  {
+   "cell_type": "code",
+   "execution_count": null,
+   "metadata": {},
+   "outputs": [],
+   "source": [
+    "import os\n",
+    "os.environ['KERAS_BACKEND'] = 'torch'\n",
+    "\n",
+    "import keras\n",
+    "\n",
+    "import numpy as np"
+   ]
+  },
+  {
+   "cell_type": "code",
+   "execution_count": null,
+   "metadata": {},
+   "outputs": [],
+   "source": [
+    "input = keras.random.normal( [32, 20, 8] )\n",
+    "\n",
+    "lstm    = keras.layers.LSTM(16)\n",
+    "output  = lstm(input)\n",
+    "\n",
+    "print('input shape is  : ',input.shape)\n",
+    "print('output shape is : ',output.shape)"
+   ]
+  },
+  {
+   "cell_type": "code",
+   "execution_count": null,
+   "metadata": {},
+   "outputs": [],
+   "source": [
+    "input = keras.random.normal( [32, 20, 8] )\n",
+    "\n",
+    "lstm = keras.layers.LSTM(18, return_sequences=True, return_state=True)\n",
+    "output, memory_state, carry_state = lstm(input)\n",
+    "\n",
+    "print('input shape  : ',input.shape)\n",
+    "print('output shape : ',output.shape)\n",
+    "print('memory_state : ', memory_state.shape)\n",
+    "print('carry_state  : ', memory_state.shape)\n",
+    "\n"
+   ]
+  },
+  {
+   "cell_type": "code",
+   "execution_count": null,
+   "metadata": {},
+   "outputs": [],
+   "source": []
+  }
+ ],
+ "metadata": {
+  "kernelspec": {
+   "display_name": "fidle-env",
+   "language": "python",
+   "name": "python3"
+  },
+  "language_info": {
+   "codemirror_mode": {
+    "name": "ipython",
+    "version": 3
+   },
+   "file_extension": ".py",
+   "mimetype": "text/x-python",
+   "name": "python",
+   "nbconvert_exporter": "python",
+   "pygments_lexer": "ipython3",
+   "version": "3.9.2"
+  }
+ },
+ "nbformat": 4,
+ "nbformat_minor": 2
+}
diff --git a/fidle/about.yml b/fidle/about.yml
index 136af1c0fe34a5fefd62900a2419d1298049b4bd..1cbeb0009cc1b40c7c2053638b5c103d3512821f 100644
--- a/fidle/about.yml
+++ b/fidle/about.yml
@@ -13,7 +13,7 @@
 #
 # This file describes the notebooks used by the Fidle training.
 
-version:                  3.0.5
+version:                  3.0.6
 content:                  notebooks
 name:                     Notebooks Fidle
 description:              All notebooks used by the Fidle training
diff --git a/fidle/ci/gpu-scale1.yml b/fidle/ci/gpu-scale1.yml
index 0e65fa4026cefd5b46235231cf78b90c2c2eb936..57e6c5c682383b2bed4cef1f83f5685e64cba571 100644
--- a/fidle/ci/gpu-scale1.yml
+++ b/fidle/ci/gpu-scale1.yml
@@ -1,10 +1,10 @@
 campain:
   version:            '1.0'
-  description:         Notebook test on GPU with scale=1.
-  directory:          ./campains/gpu-scale1
-  existing_notebook:  'remove'         # remove|skip
-  report_template:    'fidle'          # fidle|default
-  timeout:            6000
+  description:         Notebook test on CPU, default settings.
+  directory:          ./campains/cpu-foobar
+  existing_notebook:  'remove'    # remove|skip
+  report_template:    'fidle'     # fidle|default
+  timeout: 6000
 
   environment_vars:
     FIDLE_SAVE_FIGS:         true
@@ -100,14 +100,14 @@ K3GTSRB1:
   notebook: GTSRB.Keras3/01-Preparation-of-data.ipynb
   overrides:
     scale: 1
-    output_dir: {datasets_dir}/GTSRB/enhanced
+    output_dir: "{datasets_dir}/GTSRB/enhanced"
     progress_verbosity: default
 
 K3GTSRB2:
   notebook: GTSRB.Keras3/02-First-convolutions.ipynb
-  after:    K3GTSRB1
+  after: K3GTSRB1
   overrides:
-    enhanced_dir: {datasets_dir}/GTSRB/enhanced
+    enhanced_dir: "{datasets_dir}/GTSRB/enhanced"
     dataset_name: set-24x24-L
     batch_size: 64
     epochs: 5
@@ -118,7 +118,7 @@ K3GTSRB3_1:
   notebook: GTSRB.Keras3/03-Better-convolutions.ipynb
   after:    K3GTSRB1
   overrides:
-    enhanced_dir: {datasets_dir}/GTSRB/enhanced
+    enhanced_dir: "{datasets_dir}/GTSRB/enhanced"
     model_name: model-01
     dataset_name: set-48x48-RGB
     batch_size: 64
@@ -130,7 +130,7 @@ K3GTSRB3_2:
   notebook: GTSRB.Keras3/03-Better-convolutions.ipynb
   after:    K3GTSRB1
   overrides:
-    enhanced_dir: {datasets_dir}/GTSRB/enhanced
+    enhanced_dir: "{datasets_dir}/GTSRB/enhanced"
     model_name: model-02
     dataset_name: set-48x48-RGB
     batch_size: 64