Unit-API 2.0, see https://jcp.org/en/jsr/detail?id=385

Aiming to finalize between the 26th General Conference on Weights and Measures (CGPM) on November 16, 2018 and the new SI Revision on May 20, 2019.
See https://en.wikipedia.org/wiki/Proposed_redefinition_of_SI_base_units and http://www.bipm.org/en/measurement-units/rev-si/
Which is expected to be approved by the 26th CGPM (a kind of EC for the SI Standard;-) Nov 13-16 2018 http://www.bipm.org/en/cgpm-2018/