diff --git a/LINUX.es.md b/LINUX.es.md
index faa3fa3..633cfb2 100644
--- a/LINUX.es.md
+++ b/LINUX.es.md
@@ -490,7 +490,7 @@ python3-dev
 Instala la [última versión estable de Python](https://www.python.org/doc/versions/) que sea aceptada en el currículum de Le Wagon:
 
 ```bash
-pyenv install 3.10.6
+pyenv install 3.12.9
 ```
 
 Este comando puede tomar un tiempo en ejecutarse. Esto es completamente normal. ¡No dudes en ayudar a los estudiantes que estén sentados cerca de ti!
@@ -498,11 +498,11 @@ Este comando puede tomar un tiempo en ejecutarse. Esto es completamente normal.
 OK. Cuando este comando termine de ejecutarse, le diremos al sistema que use esta versión de Python **por defecto**. Esto se hace con:
 
 ```bash
-pyenv global 3.10.6
+pyenv global 3.12.9
 exec zsh
 ```
 
-Para verificar que esto haya funcionado, ejecuta `python --version`. Si ves `3.10.6`, ¡todo está bien! Si no, pídele ayuda a un TA para resolver el problema por medio de `versiones de pyenv` y `type -a python` (`python` debería estar usando la versión `.pyenv/shims` de primero).
+Para verificar que esto haya funcionado, ejecuta `python --version`. Si ves `3.12.9`, ¡todo está bien! Si no, pídele ayuda a un TA para resolver el problema por medio de `versiones de pyenv` y `type -a python` (`python` debería estar usando la versión `.pyenv/shims` de primero).
 
 
 ## Entorno Virtual de Python
@@ -519,7 +519,7 @@ exec zsh
 Crea el entorno virtual que usaremos durante todo el bootcamp:
 
 ```bash
-pyenv virtualenv 3.10.6 lewagon
+pyenv virtualenv 3.12.9 lewagon
 ```
 
 Define el entorno virtual con lo siguiente:
@@ -629,7 +629,7 @@ Puedes cerrar tu navegador web y luego cerrar el servidor jupyter con `CTRL` + `
 
 Verifica tu versión de Python con los siguientes comandos:
 ```bash
-zsh -c "$(curl -fsSL https://raw.githubusercontent.com/lewagon/data-setup/master/checks/python_checker.sh)" 3.10.6
+zsh -c "$(curl -fsSL https://raw.githubusercontent.com/lewagon/data-setup/master/checks/python_checker.sh)" 3.12.9
 ```
 
 Ejecuta el comando siguiente para verificar que hayas instalado los paquetes requeridos correctamente:
diff --git a/LINUX.md b/LINUX.md
index 6f18aeb..c529e8d 100644
--- a/LINUX.md
+++ b/LINUX.md
@@ -511,7 +511,7 @@ python3-dev
 Let's install the [latest stable version of Python](https://www.python.org/doc/versions/) supported by Le Wagon's curriculum:
 
 ```bash
-pyenv install 3.10.6
+pyenv install 3.12.9
 ```
 
 This command might take a while, this is perfectly normal. Don't hesitate to help other students seated next to you!
@@ -528,7 +528,7 @@ source ~/.zprofile
 Then try to install Python again:
 
 ```bash
-pyenv install 3.10.6
+pyenv install 3.12.9
 ```
 
 If `pyenv` is still not found, contact a teacher.
@@ -540,11 +540,11 @@ If `pyenv` is still not found, contact a teacher.
 OK once this command is complete, we are going to tell the system to use this version of Python **by default**. This is done with:
 
 ```bash
-pyenv global 3.10.6
+pyenv global 3.12.9
 exec zsh
 ```
 
-To check if this worked, run `python --version`. If you see `3.10.6`, perfect! If not, ask a TA that will help you debug the problem thanks to `pyenv versions` and `type -a python` (`python` should be using the `.pyenv/shims` version first).
+To check if this worked, run `python --version`. If you see `3.12.9`, perfect! If not, ask a TA that will help you debug the problem thanks to `pyenv versions` and `type -a python` (`python` should be using the `.pyenv/shims` version first).
 
 
 ## Python Virtual Environment
@@ -561,7 +561,7 @@ exec zsh
 Let's create the virtual environment we are going to use during the whole bootcamp:
 
 ```bash
-pyenv virtualenv 3.10.6 lewagon
+pyenv virtualenv 3.12.9 lewagon
 ```
 
 Let's now set the virtual environment with:
@@ -590,18 +590,7 @@ pip install -r https://raw.githubusercontent.com/lewagon/data-setup/master/specs
 ```
 
 
-## `jupyter` notebook extensions
-
-Pimp your `jupyter` notebooks with awesome extensions:
-
-```bash
-# install nbextensions
-jupyter contrib nbextension install --user
-jupyter nbextension enable toc2/main
-jupyter nbextension enable collapsible_headings/main
-jupyter nbextension enable spellchecker/main
-jupyter nbextension enable code_prettify/code_prettify
-```
+## `jupyter` notebook tweaking and check up
 
 ### Custom CSS
 
@@ -654,16 +643,6 @@ A tab should open on a new notebook:
 
 ![jupyter_notebook.png](images/jupyter_notebook.png)
 
-### `nbextensions` check up
-
-Perform a sanity check for `jupyter notebooks nbextensions`. Click on `Nbextensions`:
-
-![jupyter_nbextensions.png](images/jupyter_nbextensions.png)
-
-Untick _"disable configuration for nbextensions without explicit compatibility"_ then check that _at least_ all `nbextensions` circled in red are enabled:
-
-![nbextensions.png](images/nbextensions.png)
-
 You can close your web browser then terminate the jupyter server with `CTRL` + `C`.
 
 
@@ -671,7 +650,7 @@ You can close your web browser then terminate the jupyter server with `CTRL` + `
 
 Check your Python version with the following commands:
 ```bash
-zsh -c "$(curl -fsSL https://raw.githubusercontent.com/lewagon/data-setup/master/checks/python_checker.sh)" 3.10.6
+zsh -c "$(curl -fsSL https://raw.githubusercontent.com/lewagon/data-setup/master/checks/python_checker.sh)" 3.12.9
 ```
 
 Run the following command to check if you successfully installed the required packages:
diff --git a/LINUX_keep_current.es.md b/LINUX_keep_current.es.md
index 1ccb8f2..a4a878a 100644
--- a/LINUX_keep_current.es.md
+++ b/LINUX_keep_current.es.md
@@ -93,7 +93,7 @@ cd $(pyenv root) && git pull
 Instala la versión actual de python:
 
 ```bash
-pyenv install 3.10.6
+pyenv install 3.12.9
 ```
 
 👉 Asegúrate de que el comando se ejecute completamente y luego **reinicia tu terminal**.
@@ -107,7 +107,7 @@ pyenv virtualenv-delete lewagon_current
 Crea un nuevo ambiente virtual:
 
 ```bash
-pyenv virtualenv 3.10.6 lewagon_current
+pyenv virtualenv 3.12.9 lewagon_current
 ```
 
 Define el nuevo ambiente virtual como predeterminado:
@@ -126,8 +126,8 @@ pyenv versions
 
 ``` bash
   system
-  3.10.6
-  3.10.6/envs/lewagon_current
+  3.12.9
+  3.12.9/envs/lewagon_current
   3.7.6
   3.7.6/envs/lewagon
 * lewagon_current
@@ -277,7 +277,7 @@ sudo service docker stop
 
 Verifica tu versión de Python con los siguientes comandos:
 ```bash
-zsh -c "$(curl -fsSL https://raw.githubusercontent.com/lewagon/data-setup/master/checks/python_checker.sh)" 3.10.6
+zsh -c "$(curl -fsSL https://raw.githubusercontent.com/lewagon/data-setup/master/checks/python_checker.sh)" 3.12.9
 ```
 
 Ejecuta el comando siguiente para verificar que hayas instalado los paquetes requeridos correctamente:
diff --git a/LINUX_keep_current.md b/LINUX_keep_current.md
index 7ac8ec2..4dec62d 100644
--- a/LINUX_keep_current.md
+++ b/LINUX_keep_current.md
@@ -93,7 +93,7 @@ cd $(pyenv root) && git pull
 Install the current python version :
 
 ```bash
-pyenv install 3.10.6
+pyenv install 3.12.9
 ```
 
 👉 Make sure that the command completes correctly and **restart your terminal**
@@ -107,7 +107,7 @@ pyenv virtualenv-delete lewagon_current
 Create a new virtual environment :
 
 ```bash
-pyenv virtualenv 3.10.6 lewagon_current
+pyenv virtualenv 3.12.9 lewagon_current
 ```
 
 Set the new virtual environment as default :
@@ -126,10 +126,10 @@ pyenv versions
 
 ``` bash
   system
+  3.12.9
+  3.12.9/envs/lewagon_current
   3.10.6
-  3.10.6/envs/lewagon_current
-  3.7.6
-  3.7.6/envs/lewagon
+  3.10.6/envs/lewagon
 * lewagon_current
   lewagon
 ```
@@ -277,7 +277,7 @@ sudo service docker stop
 
 Check your Python version with the following commands:
 ```bash
-zsh -c "$(curl -fsSL https://raw.githubusercontent.com/lewagon/data-setup/master/checks/python_checker.sh)" 3.10.6
+zsh -c "$(curl -fsSL https://raw.githubusercontent.com/lewagon/data-setup/master/checks/python_checker.sh)" 3.12.9
 ```
 
 Run the following command to check if you successfully installed the required packages:
diff --git a/VM.es.md b/VM.es.md
index 4c851c2..23034fc 100644
--- a/VM.es.md
+++ b/VM.es.md
@@ -634,7 +634,7 @@ python3-dev
 Instala la [última versión estable de Python](https://www.python.org/doc/versions/) que sea aceptada en el currículum de Le Wagon:
 
 ```bash
-pyenv install 3.10.6
+pyenv install 3.12.9
 ```
 
 Este comando puede tomar un tiempo en ejecutarse. Esto es completamente normal. ¡No dudes en ayudar a los estudiantes que estén sentados cerca de ti!
@@ -642,11 +642,11 @@ Este comando puede tomar un tiempo en ejecutarse. Esto es completamente normal.
 OK. Cuando este comando termine de ejecutarse, le diremos al sistema que use esta versión de Python **por defecto**. Esto se hace con:
 
 ```bash
-pyenv global 3.10.6
+pyenv global 3.12.9
 exec zsh
 ```
 
-Para verificar que esto haya funcionado, ejecuta `python --version`. Si ves `3.10.6`, ¡todo está bien! Si no, pídele ayuda a un TA para resolver el problema por medio de `versiones de pyenv` y `type -a python` (`python` debería estar usando la versión `.pyenv/shims` de primero).
+Para verificar que esto haya funcionado, ejecuta `python --version`. Si ves `3.12.9`, ¡todo está bien! Si no, pídele ayuda a un TA para resolver el problema por medio de `versiones de pyenv` y `type -a python` (`python` debería estar usando la versión `.pyenv/shims` de primero).
 
 
 ## Entorno Virtual de Python
@@ -663,7 +663,7 @@ exec zsh
 Crea el entorno virtual que usaremos durante todo el bootcamp:
 
 ```bash
-pyenv virtualenv 3.10.6 lewagon
+pyenv virtualenv 3.12.9 lewagon
 ```
 
 Define el entorno virtual con lo siguiente:
@@ -773,7 +773,7 @@ Puedes cerrar tu navegador web y luego cerrar el servidor jupyter con `CTRL` + `
 
 Verifica tu versión de Python con los siguientes comandos:
 ```bash
-zsh -c "$(curl -fsSL https://raw.githubusercontent.com/lewagon/data-setup/master/checks/python_checker.sh)" 3.10.6
+zsh -c "$(curl -fsSL https://raw.githubusercontent.com/lewagon/data-setup/master/checks/python_checker.sh)" 3.12.9
 ```
 
 Ejecuta el comando siguiente para verificar que hayas instalado los paquetes requeridos correctamente:
diff --git a/VM.md b/VM.md
index 771d7fd..bf721f3 100644
--- a/VM.md
+++ b/VM.md
@@ -909,7 +909,7 @@ python3-dev
 Let's install the [latest stable version of Python](https://www.python.org/doc/versions/) supported by Le Wagon's curriculum:
 
 ```bash
-pyenv install 3.10.6
+pyenv install 3.12.9
 ```
 
 This command might take a while, this is perfectly normal. Don't hesitate to help other students seated next to you!
@@ -926,7 +926,7 @@ source ~/.zprofile
 Then try to install Python again:
 
 ```bash
-pyenv install 3.10.6
+pyenv install 3.12.9
 ```
 
 If `pyenv` is still not found, contact a teacher.
@@ -938,11 +938,11 @@ If `pyenv` is still not found, contact a teacher.
 OK once this command is complete, we are going to tell the system to use this version of Python **by default**. This is done with:
 
 ```bash
-pyenv global 3.10.6
+pyenv global 3.12.9
 exec zsh
 ```
 
-To check if this worked, run `python --version`. If you see `3.10.6`, perfect! If not, ask a TA that will help you debug the problem thanks to `pyenv versions` and `type -a python` (`python` should be using the `.pyenv/shims` version first).
+To check if this worked, run `python --version`. If you see `3.12.9`, perfect! If not, ask a TA that will help you debug the problem thanks to `pyenv versions` and `type -a python` (`python` should be using the `.pyenv/shims` version first).
 
 
 ## Python Virtual Environment
@@ -959,7 +959,7 @@ exec zsh
 Let's create the virtual environment we are going to use during the whole bootcamp:
 
 ```bash
-pyenv virtualenv 3.10.6 lewagon
+pyenv virtualenv 3.12.9 lewagon
 ```
 
 Let's now set the virtual environment with:
@@ -988,18 +988,7 @@ pip install -r https://raw.githubusercontent.com/lewagon/data-setup/master/specs
 ```
 
 
-## `jupyter` notebook extensions
-
-Pimp your `jupyter` notebooks with awesome extensions:
-
-```bash
-# install nbextensions
-jupyter contrib nbextension install --user
-jupyter nbextension enable toc2/main
-jupyter nbextension enable collapsible_headings/main
-jupyter nbextension enable spellchecker/main
-jupyter nbextension enable code_prettify/code_prettify
-```
+## `jupyter` notebook tweaking and check up
 
 ### Custom CSS
 
@@ -1052,16 +1041,6 @@ A tab should open on a new notebook:
 
 ![jupyter_notebook.png](images/jupyter_notebook.png)
 
-### `nbextensions` check up
-
-Perform a sanity check for `jupyter notebooks nbextensions`. Click on `Nbextensions`:
-
-![jupyter_nbextensions.png](images/jupyter_nbextensions.png)
-
-Untick _"disable configuration for nbextensions without explicit compatibility"_ then check that _at least_ all `nbextensions` circled in red are enabled:
-
-![nbextensions.png](images/nbextensions.png)
-
 You can close your web browser then terminate the jupyter server with `CTRL` + `C`.
 
 
@@ -1069,7 +1048,7 @@ You can close your web browser then terminate the jupyter server with `CTRL` + `
 
 Check your Python version with the following commands:
 ```bash
-zsh -c "$(curl -fsSL https://raw.githubusercontent.com/lewagon/data-setup/master/checks/python_checker.sh)" 3.10.6
+zsh -c "$(curl -fsSL https://raw.githubusercontent.com/lewagon/data-setup/master/checks/python_checker.sh)" 3.12.9
 ```
 
 Run the following command to check if you successfully installed the required packages:
diff --git a/WINDOWS.es.md b/WINDOWS.es.md
index d3b8a0a..0e7d5c8 100644
--- a/WINDOWS.es.md
+++ b/WINDOWS.es.md
@@ -1022,7 +1022,7 @@ python3-dev
 Instala la [última versión estable de Python](https://www.python.org/doc/versions/) que sea aceptada en el currículum de Le Wagon:
 
 ```bash
-pyenv install 3.10.6
+pyenv install 3.12.9
 ```
 
 Este comando puede tomar un tiempo en ejecutarse. Esto es completamente normal. ¡No dudes en ayudar a los estudiantes que estén sentados cerca de ti!
@@ -1030,11 +1030,11 @@ Este comando puede tomar un tiempo en ejecutarse. Esto es completamente normal.
 OK. Cuando este comando termine de ejecutarse, le diremos al sistema que use esta versión de Python **por defecto**. Esto se hace con:
 
 ```bash
-pyenv global 3.10.6
+pyenv global 3.12.9
 exec zsh
 ```
 
-Para verificar que esto haya funcionado, ejecuta `python --version`. Si ves `3.10.6`, ¡todo está bien! Si no, pídele ayuda a un TA para resolver el problema por medio de `versiones de pyenv` y `type -a python` (`python` debería estar usando la versión `.pyenv/shims` de primero).
+Para verificar que esto haya funcionado, ejecuta `python --version`. Si ves `3.12.9`, ¡todo está bien! Si no, pídele ayuda a un TA para resolver el problema por medio de `versiones de pyenv` y `type -a python` (`python` debería estar usando la versión `.pyenv/shims` de primero).
 
 
 ## Entorno Virtual de Python
@@ -1051,7 +1051,7 @@ exec zsh
 Crea el entorno virtual que usaremos durante todo el bootcamp:
 
 ```bash
-pyenv virtualenv 3.10.6 lewagon
+pyenv virtualenv 3.12.9 lewagon
 ```
 
 Define el entorno virtual con lo siguiente:
@@ -1205,7 +1205,7 @@ Puedes cerrar tu navegador web y luego cerrar el servidor jupyter con `CTRL` + `
 
 Verifica tu versión de Python con los siguientes comandos:
 ```bash
-zsh -c "$(curl -fsSL https://raw.githubusercontent.com/lewagon/data-setup/master/checks/python_checker.sh)" 3.10.6
+zsh -c "$(curl -fsSL https://raw.githubusercontent.com/lewagon/data-setup/master/checks/python_checker.sh)" 3.12.9
 ```
 
 Ejecuta el comando siguiente para verificar que hayas instalado los paquetes requeridos correctamente:
diff --git a/WINDOWS.md b/WINDOWS.md
index 66a3b6e..bf19fa3 100644
--- a/WINDOWS.md
+++ b/WINDOWS.md
@@ -1062,7 +1062,7 @@ python3-dev
 Let's install the [latest stable version of Python](https://www.python.org/doc/versions/) supported by Le Wagon's curriculum:
 
 ```bash
-pyenv install 3.10.6
+pyenv install 3.12.9
 ```
 
 This command might take a while, this is perfectly normal. Don't hesitate to help other students seated next to you!
@@ -1079,7 +1079,7 @@ source ~/.zprofile
 Then try to install Python again:
 
 ```bash
-pyenv install 3.10.6
+pyenv install 3.12.9
 ```
 
 If `pyenv` is still not found, contact a teacher.
@@ -1091,11 +1091,11 @@ If `pyenv` is still not found, contact a teacher.
 OK once this command is complete, we are going to tell the system to use this version of Python **by default**. This is done with:
 
 ```bash
-pyenv global 3.10.6
+pyenv global 3.12.9
 exec zsh
 ```
 
-To check if this worked, run `python --version`. If you see `3.10.6`, perfect! If not, ask a TA that will help you debug the problem thanks to `pyenv versions` and `type -a python` (`python` should be using the `.pyenv/shims` version first).
+To check if this worked, run `python --version`. If you see `3.12.9`, perfect! If not, ask a TA that will help you debug the problem thanks to `pyenv versions` and `type -a python` (`python` should be using the `.pyenv/shims` version first).
 
 
 ## Python Virtual Environment
@@ -1112,7 +1112,7 @@ exec zsh
 Let's create the virtual environment we are going to use during the whole bootcamp:
 
 ```bash
-pyenv virtualenv 3.10.6 lewagon
+pyenv virtualenv 3.12.9 lewagon
 ```
 
 Let's now set the virtual environment with:
@@ -1185,18 +1185,7 @@ If it is not the case, please call a TA.
 To stop the Jupyter server in the terminal, press `Ctrl` + `C`, enter y, then press Enter.
 
 
-## `jupyter` notebook extensions
-
-Pimp your `jupyter` notebooks with awesome extensions:
-
-```bash
-# install nbextensions
-jupyter contrib nbextension install --user
-jupyter nbextension enable toc2/main
-jupyter nbextension enable collapsible_headings/main
-jupyter nbextension enable spellchecker/main
-jupyter nbextension enable code_prettify/code_prettify
-```
+## `jupyter` notebook tweaking and check up
 
 ### Custom CSS
 
@@ -1249,16 +1238,6 @@ A tab should open on a new notebook:
 
 ![jupyter_notebook.png](images/jupyter_notebook.png)
 
-### `nbextensions` check up
-
-Perform a sanity check for `jupyter notebooks nbextensions`. Click on `Nbextensions`:
-
-![jupyter_nbextensions.png](images/jupyter_nbextensions.png)
-
-Untick _"disable configuration for nbextensions without explicit compatibility"_ then check that _at least_ all `nbextensions` circled in red are enabled:
-
-![nbextensions.png](images/nbextensions.png)
-
 You can close your web browser then terminate the jupyter server with `CTRL` + `C`.
 
 
@@ -1266,7 +1245,7 @@ You can close your web browser then terminate the jupyter server with `CTRL` + `
 
 Check your Python version with the following commands:
 ```bash
-zsh -c "$(curl -fsSL https://raw.githubusercontent.com/lewagon/data-setup/master/checks/python_checker.sh)" 3.10.6
+zsh -c "$(curl -fsSL https://raw.githubusercontent.com/lewagon/data-setup/master/checks/python_checker.sh)" 3.12.9
 ```
 
 Run the following command to check if you successfully installed the required packages:
diff --git a/WINDOWS_keep_current.es.md b/WINDOWS_keep_current.es.md
index ac4c6ac..b23f12c 100644
--- a/WINDOWS_keep_current.es.md
+++ b/WINDOWS_keep_current.es.md
@@ -93,7 +93,7 @@ cd $(pyenv root) && git pull
 Instala la versión actual de python:
 
 ```bash
-pyenv install 3.10.6
+pyenv install 3.12.9
 ```
 
 👉 Asegúrate de que el comando se ejecute completamente y luego **reinicia tu terminal**.
@@ -107,7 +107,7 @@ pyenv virtualenv-delete lewagon_current
 Crea un nuevo ambiente virtual:
 
 ```bash
-pyenv virtualenv 3.10.6 lewagon_current
+pyenv virtualenv 3.12.9 lewagon_current
 ```
 
 Define el nuevo ambiente virtual como predeterminado:
@@ -126,8 +126,8 @@ pyenv versions
 
 ``` bash
   system
-  3.10.6
-  3.10.6/envs/lewagon_current
+  3.12.9
+  3.12.9/envs/lewagon_current
   3.7.6
   3.7.6/envs/lewagon
 * lewagon_current
@@ -269,7 +269,7 @@ Stop the Docker Desktop app
 
 Verifica tu versión de Python con los siguientes comandos:
 ```bash
-zsh -c "$(curl -fsSL https://raw.githubusercontent.com/lewagon/data-setup/master/checks/python_checker.sh)" 3.10.6
+zsh -c "$(curl -fsSL https://raw.githubusercontent.com/lewagon/data-setup/master/checks/python_checker.sh)" 3.12.9
 ```
 
 Ejecuta el comando siguiente para verificar que hayas instalado los paquetes requeridos correctamente:
diff --git a/WINDOWS_keep_current.md b/WINDOWS_keep_current.md
index 2e6adf3..14696e1 100644
--- a/WINDOWS_keep_current.md
+++ b/WINDOWS_keep_current.md
@@ -93,7 +93,7 @@ cd $(pyenv root) && git pull
 Install the current python version :
 
 ```bash
-pyenv install 3.10.6
+pyenv install 3.12.9
 ```
 
 👉 Make sure that the command completes correctly and **restart your terminal**
@@ -107,7 +107,7 @@ pyenv virtualenv-delete lewagon_current
 Create a new virtual environment :
 
 ```bash
-pyenv virtualenv 3.10.6 lewagon_current
+pyenv virtualenv 3.12.9 lewagon_current
 ```
 
 Set the new virtual environment as default :
@@ -126,10 +126,10 @@ pyenv versions
 
 ``` bash
   system
+  3.12.9
+  3.12.9/envs/lewagon_current
   3.10.6
-  3.10.6/envs/lewagon_current
-  3.7.6
-  3.7.6/envs/lewagon
+  3.10.6/envs/lewagon
 * lewagon_current
   lewagon
 ```
@@ -269,7 +269,7 @@ Stop the Docker Desktop app
 
 Check your Python version with the following commands:
 ```bash
-zsh -c "$(curl -fsSL https://raw.githubusercontent.com/lewagon/data-setup/master/checks/python_checker.sh)" 3.10.6
+zsh -c "$(curl -fsSL https://raw.githubusercontent.com/lewagon/data-setup/master/checks/python_checker.sh)" 3.12.9
 ```
 
 Run the following command to check if you successfully installed the required packages:
diff --git a/macOS.es.md b/macOS.es.md
index e479485..3eb2612 100644
--- a/macOS.es.md
+++ b/macOS.es.md
@@ -568,7 +568,7 @@ export LDFLAGS="-L/opt/homebrew/lib"; export CPPFLAGS="-I/opt/homebrew/include"
 Instala la [última versión estable de Python](https://www.python.org/doc/versions/) aceptada en el currículum de Le Wagon:
 
 ```bash
-pyenv install 3.10.6
+pyenv install 3.12.9
 ```
 
 Este comando puede tomar un tiempo en ejecutarse. Esto es completamente normal. ¡No dudes en ayudar a los estudiantes que estén sentados cerca de ti!
@@ -593,7 +593,7 @@ export CPPFLAGS="-I/usr/local/opt/zlib/include"
 Luego trata de instalar Python nuevamente:
 
 ```bash
-pyenv install 3.10.6
+pyenv install 3.12.9
 ```
 
 Es posible que aparezca otro error relacionado con `bzip2`. Esto lo puedes ignorar y continuar al paso siguiente.
@@ -604,11 +604,11 @@ Es posible que aparezca otro error relacionado con `bzip2`. Esto lo puedes ignor
 OK. Cuando este comando termine de ejecutarse, le diremos al sistema que use esta versión de Python **por defecto**. Esto se hace con:
 
 ```bash
-pyenv global 3.10.6
+pyenv global 3.12.9
 exec zsh
 ```
 
-Para verificar si esto ha funcionado, ejecuta `python --version`. Si ves `3.10.6`, ¡todo está bien! Si no, pídele ayuda a un TA para resolver el problema por medio `pyenv versions` y `type -a python` (`python` debería estar usando la versión `.pyenv/shims` de primero).
+Para verificar si esto ha funcionado, ejecuta `python --version`. Si ves `3.12.9`, ¡todo está bien! Si no, pídele ayuda a un TA para resolver el problema por medio `pyenv versions` y `type -a python` (`python` debería estar usando la versión `.pyenv/shims` de primero).
 
 
 ## Entorno Virtual de Python
@@ -625,7 +625,7 @@ exec zsh
 Crea el entorno virtual que usaremos durante todo el bootcamp:
 
 ```bash
-pyenv virtualenv 3.10.6 lewagon
+pyenv virtualenv 3.12.9 lewagon
 ```
 
 Define el entorno virtual con lo siguiente:
@@ -751,7 +751,7 @@ Puedes cerrar tu navegador web y luego cerrar el servidor jupyter con `CTRL` + `
 
 Verifica tu versión de Python con los siguientes comandos:
 ```bash
-zsh -c "$(curl -fsSL https://raw.githubusercontent.com/lewagon/data-setup/master/checks/python_checker.sh)" 3.10.6
+zsh -c "$(curl -fsSL https://raw.githubusercontent.com/lewagon/data-setup/master/checks/python_checker.sh)" 3.12.9
 ```
 
 Ejecuta el comando siguiente para verificar que hayas instalado los paquetes requeridos correctamente:
diff --git a/macOS.md b/macOS.md
index 59122a5..bcdf4aa 100644
--- a/macOS.md
+++ b/macOS.md
@@ -571,7 +571,7 @@ export LDFLAGS="-L/opt/homebrew/lib"; export CPPFLAGS="-I/opt/homebrew/include"
 Let's install the [latest stable version of Python](https://www.python.org/doc/versions/) supported by Le Wagon's curriculum:
 
 ```bash
-pyenv install 3.10.6
+pyenv install 3.12.9
 ```
 
 This command might take a while, this is perfectly normal. Don't hesitate to help other students seated next to you!
@@ -588,7 +588,7 @@ source ~/.zprofile
 Then try to install Python again:
 
 ```bash
-pyenv install 3.10.6
+pyenv install 3.12.9
 ```
 
 If `pyenv` is still not found, contact a teacher.
@@ -616,7 +616,7 @@ export CPPFLAGS="-I/usr/local/opt/zlib/include"
 Then try to install Python again:
 
 ```bash
-pyenv install 3.10.6
+pyenv install 3.12.9
 ```
 
 It could raise another error about `bzip2`, you can ignore it and continue to the next step.
@@ -627,11 +627,11 @@ It could raise another error about `bzip2`, you can ignore it and continue to th
 OK once this command is complete, we are going to tell the system to use this version of Python **by default**. This is done with:
 
 ```bash
-pyenv global 3.10.6
+pyenv global 3.12.9
 exec zsh
 ```
 
-To check if this worked, run `python --version`. If you see `3.10.6`, perfect! If not, ask a TA that will help you debug the problem thanks to `pyenv versions` and `type -a python` (`python` should be using the `.pyenv/shims` version first).
+To check if this worked, run `python --version`. If you see `3.12.9`, perfect! If not, ask a TA that will help you debug the problem thanks to `pyenv versions` and `type -a python` (`python` should be using the `.pyenv/shims` version first).
 
 
 ## Python Virtual Environment
@@ -648,7 +648,7 @@ exec zsh
 Let's create the virtual environment we are going to use during the whole bootcamp:
 
 ```bash
-pyenv virtualenv 3.10.6 lewagon
+pyenv virtualenv 3.12.9 lewagon
 ```
 
 Let's now set the virtual environment with:
@@ -693,18 +693,7 @@ pip install -r https://raw.githubusercontent.com/lewagon/data-setup/master/specs
 </details>
 
 
-## `jupyter` notebook extensions
-
-Pimp your `jupyter` notebooks with awesome extensions:
-
-```bash
-# install nbextensions
-jupyter contrib nbextension install --user
-jupyter nbextension enable toc2/main
-jupyter nbextension enable collapsible_headings/main
-jupyter nbextension enable spellchecker/main
-jupyter nbextension enable code_prettify/code_prettify
-```
+## `jupyter` notebook tweaking and check up
 
 ### Custom CSS
 
@@ -757,16 +746,6 @@ A tab should open on a new notebook:
 
 ![jupyter_notebook.png](images/jupyter_notebook.png)
 
-### `nbextensions` check up
-
-Perform a sanity check for `jupyter notebooks nbextensions`. Click on `Nbextensions`:
-
-![jupyter_nbextensions.png](images/jupyter_nbextensions.png)
-
-Untick _"disable configuration for nbextensions without explicit compatibility"_ then check that _at least_ all `nbextensions` circled in red are enabled:
-
-![nbextensions.png](images/nbextensions.png)
-
 You can close your web browser then terminate the jupyter server with `CTRL` + `C`.
 
 
@@ -774,7 +753,7 @@ You can close your web browser then terminate the jupyter server with `CTRL` + `
 
 Check your Python version with the following commands:
 ```bash
-zsh -c "$(curl -fsSL https://raw.githubusercontent.com/lewagon/data-setup/master/checks/python_checker.sh)" 3.10.6
+zsh -c "$(curl -fsSL https://raw.githubusercontent.com/lewagon/data-setup/master/checks/python_checker.sh)" 3.12.9
 ```
 
 Run the following command to check if you successfully installed the required packages:
diff --git a/macOS_keep_current.es.md b/macOS_keep_current.es.md
index 7e7f0ce..2d02984 100644
--- a/macOS_keep_current.es.md
+++ b/macOS_keep_current.es.md
@@ -93,7 +93,7 @@ brew update && brew upgrade pyenv
 Instala la versión actual de python:
 
 ```bash
-pyenv install 3.10.6
+pyenv install 3.12.9
 ```
 
 👉 Asegúrate de que el comando se ejecute completamente y luego **reinicia tu terminal**.
@@ -107,7 +107,7 @@ pyenv virtualenv-delete lewagon_current
 Crea un nuevo ambiente virtual:
 
 ```bash
-pyenv virtualenv 3.10.6 lewagon_current
+pyenv virtualenv 3.12.9 lewagon_current
 ```
 
 Define el nuevo ambiente virtual como predeterminado:
@@ -126,8 +126,8 @@ pyenv versions
 
 ``` bash
   system
-  3.10.6
-  3.10.6/envs/lewagon_current
+  3.12.9
+  3.12.9/envs/lewagon_current
   3.7.6
   3.7.6/envs/lewagon
 * lewagon_current
@@ -285,7 +285,7 @@ Stop the Docker app
 
 Verifica tu versión de Python con los siguientes comandos:
 ```bash
-zsh -c "$(curl -fsSL https://raw.githubusercontent.com/lewagon/data-setup/master/checks/python_checker.sh)" 3.10.6
+zsh -c "$(curl -fsSL https://raw.githubusercontent.com/lewagon/data-setup/master/checks/python_checker.sh)" 3.12.9
 ```
 
 Ejecuta el comando siguiente para verificar que hayas instalado los paquetes requeridos correctamente:
diff --git a/macOS_keep_current.md b/macOS_keep_current.md
index cb06612..5a2bdd2 100644
--- a/macOS_keep_current.md
+++ b/macOS_keep_current.md
@@ -93,7 +93,7 @@ brew update && brew upgrade pyenv
 Install the current python version :
 
 ```bash
-pyenv install 3.10.6
+pyenv install 3.12.9
 ```
 
 👉 Make sure that the command completes correctly and **restart your terminal**
@@ -107,7 +107,7 @@ pyenv virtualenv-delete lewagon_current
 Create a new virtual environment :
 
 ```bash
-pyenv virtualenv 3.10.6 lewagon_current
+pyenv virtualenv 3.12.9 lewagon_current
 ```
 
 Set the new virtual environment as default :
@@ -126,10 +126,10 @@ pyenv versions
 
 ``` bash
   system
+  3.12.9
+  3.12.9/envs/lewagon_current
   3.10.6
-  3.10.6/envs/lewagon_current
-  3.7.6
-  3.7.6/envs/lewagon
+  3.10.6/envs/lewagon
 * lewagon_current
   lewagon
 ```
@@ -285,7 +285,7 @@ Stop the Docker app
 
 Check your Python version with the following commands:
 ```bash
-zsh -c "$(curl -fsSL https://raw.githubusercontent.com/lewagon/data-setup/master/checks/python_checker.sh)" 3.10.6
+zsh -c "$(curl -fsSL https://raw.githubusercontent.com/lewagon/data-setup/master/checks/python_checker.sh)" 3.12.9
 ```
 
 Run the following command to check if you successfully installed the required packages: