Carousel 7.4.3 Release Notes
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      * Bug CSL-2306 | Zone and Bulletin Excluded Words Break Twitter Bulletin Feed Validation
-Fixed an issue where having excluded words for a zone or on a Twitter bulletin would break the feed validation. 

                * Bug CSL-2336 | Support for BrightSign LS4 and HD4 models
-Added support for BrightSign's LS4 and HD4 models