Okla. Stat. tit. 70, § 17-116.22
A. Any person receiving benefits from the Teachers' Retirement System of Oklahoma as of June 30, 2019, other than those benefits specified in subsection B of this section, who continues to receive benefits on or after July 1, 2020, shall receive an increase in benefits as follows:
B. Any person receiving benefits pursuant to subsection (3) of Section 17-105 of Title 70 of the Oklahoma Statutes whose benefits commenced prior to July 1, 2020, and who continues to receive benefits on or after July 1, 2020, shall receive an increase in benefits as follows:
Laws 2020, HB 3350, c. 121, § 6, emerg. eff. July 1, 2020.