#racket 6.12 is what I'm using an it was released in late January. Mostly a few very specific fixes, but this one stands out:

> The `lazy-require-syntax` form supports lazy loading of macro transformers. Note that the macros must obey certain implementation constraints (see the `lazy-require-syntax` documentation).

https://www.mail-archive.com/racket-users@googlegroups.com/msg37149.html

I wonder if this is only useful for (and I guess, sometimes detrimental from) a performance perspective, or if it enables some qualitatively new ways of doing things?

!scheme