mobilizon/docs/administration/upgrading.md

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---
title: Upgrading to a new release
---
# Preparing
The release page contains a changelog, and below it, upgrade instructions. **Read and understand** the release instructions.
Some tasks (like database migrations) can take a while, so we advise you to run commands inside a `tmux` or `screen`.
# Backup
Always make sure your database and `config` folder are properly backuped before performing upgrades.
Unless stated otherwise in the release notes, the following steps are enough to upgrade Mobilizon.
# Steps
### Fetch latest code
Switch to the `mobilizon` user:
```bash
sudo -i -u mobilizon
```
And navigate to the Mobilizon root directory:
```bash
cd /home/mobilizon/live
```
Fetch the latest tags
```bash
git fetch --tags
```
And checkout the tag you want to switch to. For instance, if I want to upgrade to version `v1.1`:
```bash
git checkout v1.1
```
### Fetch new dependencies
Fetch new and/or updated Elixir and NodeJS dependencies
```bash
MIX_ENV=prod mix deps.get
```
```bash
cd js
yarn install
```
### Rebuild Mobilizon's front-end
!!! warning
Building front-end can consume up to 2048MB of RAM by default. If it's too much or not sufficient for your setup, you can adjust the maximum memory used by prefixing the command with the following option:
```
NODE_BUILD_MEMORY=1024
```
```bash
yarn run build
cd ../
```
### Recompile Mobilizon
```bash
MIX_ENV=prod mix compile
```
Let's switch back to your regular user.
### Stop running Mobilizon processes
```bash
sudo systemctl stop mobilizon
```
### Perform database migrations
Go back to the `mobilizon` user.
```bash
sudo -i -u mobilizon
cd live
MIX_ENV=prod mix ecto.migrate
```
### Restart Mobilizon
Let's switch back one last time to your regular user.
```bash
sudo systemctl restart mobilizon
```
You can follow the Mobilizon logs to check that everything works properly.
```bash
sudo journalctl -u mobilizon -f
```
**Thats all!** Youre running the new version of Mobilizon now.
If you have issues after upgrading, try reviewing upgrade steps and release notes.
Then feel free to [contact us](../about.md#discuss) or file an issue on [our Gitlab](https://framagit.org/framasoft/mobilizon/issues)