Usually an update or upgrade to your SilverStripe installation just means overwriting files and updating your database-schema.
See our upgrade notes and changelogs for release-specific information.
- Check if any modules (e.g. blog or forum) in your installation are incompatible and need to be upgraded as well
- Backup your database content
- Backup your webroot files
- Download the new release and uncompress it to a temporary folder
- Leave custom folders like mysite or themes in place.
- Identify system folders in your webroot (
sapphireand any additional modules).
- Delete existing system folders (or move them outside of your webroot)
- Extract and replace system folders from your download (Deleting instead of "copying over" existing folders ensures that files removed from the new SilverStripe release are not persisting in your installation)
- Visit http://localhost/dev/build/?flush=1 to rebuild the website database
- Check if you need to adapt your code to changed PHP APIs
- Check if you have overwritten any core templates or styles which might need an update
- See common-problems for a list of likely mistakes that could happen during an upgrade.
Never update a website on the live server without trying it on a development copy first.
How easy will it be to update my project? It's a fair question, and sometimes a difficult one to answer.
- "Micro" releases (x.y.z) are explicitly backwards compatible, "minor" and "major" releases can deprecate features and change APIs (see our [/misc/release-process](framework/en/installation/release process) for details)
- If you've made custom branches of SilverStripe core, or any thirdparty module, it's going to be harder to upgrade.
- The more custom features you have, the harder it will be to upgrade. You will have to re-test all of those features, and adapt to API changes in core.
- Customisations of a well defined type - such as custom page types or custom blog widgets - are going to be easier to upgrade than customisations that modify deep system internals like rewriting SQL queries.