# Updating / Upgrading Bookstack installation

<p class="callout info">sdnog Bookstack was installed by the Ubuntu script. on 25 Oct 2026, it has been updated to v26.09.2 (last one).</p>

To update the bookstack use the following steps:

1\. Very important, as always backup your Bookstack instance  
    https://www.bookstackapp.com/docs/admin/backup-restore/  
      
2\. by default Bookstack is installed under /var/www/bookstack, (if that wasn't changed, then go there)  
      
3\. try to pull the latest changes:

```
git pull origin release
```

4\. if that fails because there are updated files in the directory, run:

```
git config core.fileMode false
```

5\. then:

```
composer install --no-dev
```

6\. last one:

```
php artisan migrate
```

7\. Also don't forget to clear cache:

```
php artisan cache:clear
php artisan config:clear
php artisan view:clear
```

  
source:  
\- [https://www.bookstackapp.com/docs/admin/updates/](https://www.bookstackapp.com/docs/admin/updates/)  
\- [https://www.bookstackapp.com/blog/bookstack-release-v26-09-2/](https://www.bookstackapp.com/blog/bookstack-release-v26-09-2/)