Namespaces are an interesting addition, and I appreciate GNU trying to modernize such a ubiquitous tool, but I wish they would put more effort into expanding the built-in utilities. There's still no `join`, for example. No high-level date mechanics. Also, no Oniguruma! I'm tired of looping over `match` and `sub` statements because you can't specify non-greedy regex.
The @include and @load directives are extremely useful for shipping your own customizations, but I prefer the maintenance priorities of the JQ maintainers [1], who understand that powerful builtins are what burn into user's minds, making a tool mentally indispensable.