【产通社，3月4日讯】HDMI Licensing, LLC消息，HDMI 1.4a版本增强了3D应用内容，包括面向广播内容的强制性3D格式，以及与Top-and-Bottom有关的3D格式。今天同时发布的还有1.4a版本符合性测试规范（Compliance Test Specification Version 1.4a），即HDMI CTS 1.4a。

The latest HDMI Specification adds key enhancements to support the market requirements for bringing broadcast 3D content into the home:
The addition of Top-and-Bottom to the Specification.
The addition of two mandatory formats for broadcast content:
Side-by-Side Horizontal
Top-and-Bottom
With the addition of these two mandatory formats, the HDMI Specification Version 1.4a provides a level of interoperability for devices designed to deliver 3D content over the HDMI connection.

HDMI 1.4a版本目前已经可以下载，具体地址为http://www.hdmi.org.