I'm testing the new GM of El Capitan. All of my current Alturia plug-ins are crashing validation in Logic Pro X (the entire V Collection). The old 32-bit versions I've resurrected with 32 Lives are working fine...! FYI, most Native Instruments plugs are crashing as well. UAD, GForce, PSP, Xils, Korg, IK, Slate, TAL, U-he, Soundtoys are all working fine.
I would be happy to test any beta versions!