Couchbase Mobile 1.4 has been released to support millions of devices and users, enabling on-demand scaling for companies like GE, Becton Dickinson, Doddle, and others, with features such as Sync Gateway Accelerator which can increase system capacity by up to 6x through horizontal scaling. Additionally, Couchbase Lite now supports LINQ queries in .NET, while also addressing various bugs and making minor enhancements. The release includes new documentation and a product webinar for further information and getting started.