> For the complete documentation index, see [llms.txt](https://docs.chamilo.org/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://docs.chamilo.org/1.11.x/developer-guide/participating_to_the_development/updating_you_code.md).

# Updating you code

Because we use autoloading mechanisms, and because we use templates, there is one little step you will have to take **every single time** right after you pull the last changes from our repository:

```
composer update
```

This will ensure that all dependencies are up to date and that the autoloading mechanism is updated to find all its classes in the right places.

Sadly, composer is a very slow and memory-hungry process with Chamilo, so make sure you have at least 2GB of RAM available just for that process, and that you work on something else in the meantime...