I read a while ago about FreeBSD re-basing their ZFS codebase to OpenZFS/zfsonlinux(?). I tried looking around so I figured I'd ask here; Did Illumos rebase their ZFS?

nope :) It's quite a bit of work but was discussed

Will this spell future cross-compatibility issues in the future with Linux & FreeBSD?

No, ZFS has feature flags. And pools have never been a dualboot kind of portable. You will be able to import. But running two OS's on the same pool was always impossible.

Thanks, & for my last question is TRIM supported?

Yes, but be careful about your drives implementation we had some nasty SSD's before.

Linux has a list of drives it disables trim we find that too unsafe and thus it must be enabled manually.

Is there a list of which drives have better support? If it helps, I have a Samsung EVO.

TRIM seems to work on my EVO 860s.

most of those SSDs w/ trim issues are pretty old IIRC

(from the Linux list)

Hmmm, cant find any off hand. It's more likely TRIM is supported in your device than not. I had a Samsung EVO in my last installtion aswell but don't remember if I enbled TRIM. Most SSD's to sane handling by default. I don't remember if the TRIM issues are age or cheapness related.

Sounds good then, thank you.

my EVO and QVO's all have trim so far, of the EVO line i have both SATA and NVMe ones

[illumos-gate] 15182 Fix some SMB dtrace issues -- Gordon Ross <gwr⊙rc>