The blog post announces the release of PHP SDK 2.0.0 GA, introducing new features, improvements, and fixes, with a focus on the Full Text Search API. The post provides a practical demonstration of using this API with Couchbase 4.5 and the beer-sample bucket to perform a simple search query. It highlights the process of setting up a cluster and bucket, executing a search query, and displaying the results, which include the score and ID of each hit. For installation, the post advises using the command `pecl install couchbase-2.2.0` and ensuring libcouchbase 2.6.1+ is installed, while encouraging users to report issues through Couchbase forums or the issue tracker.