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Updating from 2.7.x LTS to 3.0.0

Version-specific notes

Versions prior to 2.7.0

Symphony 3.0.0 officially only supports updating from a 2.7.x LTS release. There are various changes between 2.7.x and 3.0.0 that make this update impossible. You first need to update to 2.7.x LTS before doing this migration.

Versions 2.7.x LTS

Symphony 3.0.0 introduces numerous improvements that may affect extension compatibility. Before updating, be sure to consult the extension compatibility table to verify that the extensions you’re using have all been updated for Symphony 3.0.0.

Updating via Git

  1. Pull from the master branch at git://github.com/symphonycms/symphonycms.git

  2. Update all extensions to their latest versions.

  3. Delete the vendor directory and run composer install -o

  4. Point your web browser at the install subdirectory (e.g., http://example.com/install/) to complete the update process.

  5. Manually add those lines to your .htaccess file under the security group

RewriteRule ^vendor/(.*)$ - [F]
RewriteRule ^extensions/(.+)/vendor/(.*)$ - [F]

  1. If running on a remote server, make sure all those changes are replicated on the server.

  2. You and your website are now in the future. Buy yourself a silver jumpsuit.

Updating via the old-fashioned way

Follow the instructions below if you are updating not from git.

  1. Download the latest release tar ball.

  2. Unzip it and copy the content in your current project.

  3. Update all extensions to their latest versions.

  4. Delete the vendor directory and run composer install -o

  5. If you run it on a remote server, upload /extensions, /symphony, /install, /vendor & index.php, replacing what is already on your server (Ideally, delete the folders/files first).

  6. Point your web browser at the install subdirectory (e.g., http://example.com/install/) to complete the update process.

  7. Call a friend and brag that your copy of Symphony is newer than theirs.