[7thaccount]

Ada is pretty cool, but not sure if any more modern than APL. Both are actively maintained and useful in different areas.

[sevensor]

While we’re at it, modern Fortran exists and has its boosters. https://fortran-lang.org/

[otteromkram]

Fortran is used in NumPy, so it's not going anywhere for a while.

[int_19h]

Ada has seen quite a few major features added to it in the past couple of decades.