I am using the base Shaper helix Ultimate (2.0.12) with SPPB 4.0.10 but it persists in throwing this error under PHP 8.X

htmlspecialchars(): Argument #1 ($string) must be of type string, array given

PHP 8 has been around for months now, is it too much to ask that SPPB 4X be fully compliant?

I have MANY sites under my agency running SPPB on Helix, with SPPB 3.8.9 on Helix 2.0.12, I see no issues (yet) with PHP 8.X.

What is the timescale for full compliance for SPPB 4.X?