The speed ups are definitely understated in the release notes if they are that significant
this post was submitted on 08 Sep 2023
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Shell Scripting
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That's because it was a regression from 1.5 to 1.6 that got fixed.
The 10x speedup is in linking builtins during startup, so it's only really seen for very small inputs.
I get that they're embarrassed to mention it, but it's still worth a bullet in the release notes I reckon