The Kibana weekly update for December 14, 2018, highlights significant changes and developments, including the removal of PhantomJS in favor of Chromium as the sole option for Reporting's headless browser in version 7.0. The update lists job openings for various senior and engineering positions, discusses roadmap themes such as alerting service implementation and GIS app improvements, and details ongoing work for the Kibana 6.6 version. Notable enhancements include the introduction of trigonometry functions in TinyMath, Plotly experiments for rendering charts in Canvas, and updates to EUI's design palette. Additionally, the update provides insights into platform improvements, such as the development of a new saved objects import/export API, and various pull requests addressing both design and operational aspects.