I have never heard of this Hebrew Bible codex before. The claim that it could be as early as the tenth century CE doesn't sound very well established, so I would receive it with caution. But I look forward to following the reception of this new volume to see what specialists think.
The most informative link I can find on this codex is this JewTh!nk Blog post by Thea Gomelauri, cited at the bottom of the History of the Book Blog post noted in the H--Judaic post: Introducing the best kept secret of Georgian Jewry: The Lailashi Codex.
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