[TurboHaskal]

And arena support, and a parallel GC... there's always something exciting and promising coming up.

The proprietary implementations are also quite good.

[cardanome]

Arena support would make it amazing for game dev. Yes please!

[vindarel]

To be clear, we can talk in present tense: https://github.com/sbcl/sbcl/blob/master/doc/internals-notes...

discussion (2023): https://news.ycombinator.com/item?id=38052564

[pjmlp]

To note that you will find arena like stuff on old Lisps, like those from Xerox, TI and Genera.