Hello SLAK,
It is a bit hard to answer here.
The LIN tack for S12Z isn't production-ready software according to our terminology (SPICE level B at least). On another side, it isn't pure example software.
We have LIN conformance test certificate, provided by a third party (C&S).
So, you may use it in production and expect some quality level, however, it is without a standard quality pack and warranty.
Anyway, many customers are using it in production already.
We have Test pass rate = 100%
Best regards
RadekS