From the post:
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In particular, Tails 3.4 fixes the widely reported Meltdown attack, and includes the partial mitigation for Spectre.
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Timely security patches are always good news.
Three caveats:
1. Meltdown and Spectre patches originate in the same community that missed these vulnerabilities for twenty-odd years. How confident are you in these patches?
2. Meltdown and Spectre are more evidence for the existence of other fundamental design flaws than we have for life on other planets.
3. When did the NSA become aware of Meltdown and Spectre?