Upgrading to a New Version
We strongly recommend using modman to install the Algolia extension for Magento. Instructions on the installation process can be found in the Magento quick start guide. Unfortunately, updating the extension using other installation methods is not supported at this time.
If an older version of the plug-in is installed on your system, uninstall it using the following command:
$ modman remove algoliasearch-magento
With the older version removed, install the new version using Modman:
$ modman clone https://github.com/algolia/algoliasearch-magento
After reinstalling the extension, the configuration should be saved again even if the settings weren’t changed. Navigate to System > Configuration > Catalog > Algolia Search and hit Save.
With the configuration saved, you should reindex your Magento indices according to these indexing instructions.
Make sure to read the changelog for any additional steps that need to be taken.