GPW Benchmark S.A. has published the amended Regulations for the WIBID and WIBOR Reference Rates incorporating changes related to the cessation of WIBID and WIBOR Reference Rates for the O/N Fixing Tenor and the discontinuation of the publication of WIBID SW and WIBOR SW indices.

The changes will enter into force on October 1, 2026.

The amended Rules are available here.