Looking at the list of unsupported features, this appears to be more of a tech preview than an actual beta release.

看看那些不支持的特性列表吧，这哪是Be ta版，简直就是一个技术预览版而已。

youdao

High beta tech stocks remain under pressure despite AAPL holding up well in the pre-market.

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Most high beta tech stocks opened above recent highs and became sell signals once those areas were breached.

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If the market is healthy under the hood, the leading high-beta tech stocks will usually hold up well.

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