[magnamerc]

I'm an engineer in the aviation industry and I stick exclusively to DD-MMM-YY (26-Feb-19). Too many different formats used globally.

[randallsquared]

Unless you use four digits for the year all the time, it will remain ambiguous.

[WhyNotHugo]

That would automatically look like 2026-02-19 to me. It's an odd order TBH, though I'll admit that DD-MMM-YYYY would be unambiguous.