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The next BOS 9.0 release, which should be available before the end of August, will upgrade the Beta beta Chromium 110 version to version 120. This functionality, set through the registry, will be considered a Betabeta, but will eventually move into a BOS 9.1 release which will contain Chromium 120 as the default.
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BrightSign plans to release BOS 9.1 with a Chromium 120 as Beta beta before the end of August to help customers using Power BI. We are investigating if this version can unify the Series 4 and 5 BOS versions.
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