mirror of
https://github.com/silverstripe/silverstripe-framework
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42 lines
2.4 KiB
Markdown
42 lines
2.4 KiB
Markdown
# Upgrading
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Usually an update or upgrade to your SilverStripe installation just means
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overwriting files and updating your database-schema.
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See our [upgrade notes and changelogs](/changelogs) for release-specific information.
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## Process
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* Check if any modules (e.g. blog or forum) in your installation are incompatible and need to be upgraded as well
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* Backup your database content
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* Backup your webroot files
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* Download the new release and uncompress it to a temporary folder
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* Leave custom folders like *mysite* or *themes* in place.
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* Identify system folders in your webroot (`cms`, `framework`, `sapphire` and any additional modules).
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* Delete existing system folders (or move them outside of your webroot)
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* 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)
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* Visit http://localhost/dev/build/?flush=1 to rebuild the website database
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* Check if you need to adapt your code to changed PHP APIs
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* Check if you have overwritten any core templates or styles which might need an update
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* See [common-problems](common-problems) for a list of likely mistakes that could happen during an upgrade.
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<div class="warning" markdown="1">
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Never update a website on the live server without trying it on a development copy first.
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</div>
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## Decision Helpers
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How easy will it be to update my project? It's a fair question, and sometimes a difficult one to answer.
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* "Micro" releases (x.y.z) are explicitly backwards compatible, "minor" and "major" releases can deprecate features and change APIs (see our [/misc/release-process](release process) for details)
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* If you've made custom branches of SilverStripe core, or any thirdparty module, it's going to be harder to upgrade.
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* 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.
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* 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.
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## Related
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* [Release Announcements](http://groups.google.com/group/silverstripe-announce/)
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* [Blog posts about releases on silverstripe.org](http://silverstripe.org/blog/tag/release)
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* [/misc/release-process](Release Process)
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