The 2015 technology update document discusses the following: 1. Improvements to the contact center user interface including embedded customer service components and support for tailored workflows. 2. Initial call center workflows including adding customers, reviewing accounts, and managing newsletter subscriptions. 3. Added failover clustering support to improve system availability during planned and unplanned outages. 4. A 'Quantum' upgrade technique to upgrade database tables incrementally while the original tables remain online.