After five years, the Posit Standard (2022) has been ratified by the Posit Working Group.
Future versions of the Standard may add more math functions, but will not invalidate Posit Standard (2022). This standard supersedes all Draft versions published before March 2, 2022.
NOTE: Contrary to the original paper by Gustafson and Yonemoto, and to early versions of the Standard, the exponent size (eS) is always 2 and does not vary with the precision. This greatly simplifies conversions between precisions and the creation of correctly-rounded math library functions, and in hundreds of experiments with real applications has shown to be a better choice.
We thank all members of the Posit Working Group for their efforts.