Navigate to the download page for the module: https://github.com/acquia/cohesion/releases and click "zip" or "tar.gz" on the top entry to download the Site Studio module.
Once the file has downloaded, unzip it, rename the folder to "acquia-cohesion" and then copy to your /modules/contrib/ directory of project. When prompted click "replace" to replace your older version of Site Studio with the new one you just downloaded.
Navigate to the download page for the theme: https://github.com/acquia/cohesion-theme/releases and click "zip" or "tar.gz" on the top entry to download the theme.
Once the file has downloaded, unzip it, rename the folder to "acquia-cohesion-theme" and then copy to your /themes/contrib/ directory of your project. When prompted click "replace" to replace your older version of the Acquia Cohesion minimal theme with the new one you just downloaded.
Next, you will need to run a few drush commands, open up your terminal and browse to your project root directory.
First, you should clear your website cache.
Site Studio
drush cr
Next, you will need to do a database update. Running this command will apply database updates to your Drupal site that the new version may require.
drush updb -y
Then finally you will need to do a Site Studio import and rebuild.
Using drush 9:
drush cohesion:import
drush cohesion:rebuild
Using an earlier version of drush:
drush cohesion-import
drush cohesion-rebuild
Once Site Studio has finished running the import and rebuild, your Site Studio version will now be up to date with the version you downloaded.
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