Evolution of the ionized wind absorption feature in the soft state and near the end of the decay phase. We omit the period from MJD 58075 to 58545 as there is no strong evidence of an ionized absorption within this period. Panel a: Ionization degree of the ionized absorption. Panel b: Column density of the ionized absorption. Panel c: Inferred launching radius of the ionized winds vs. time given a typical number density of the winds of 10¹⁴ cm⁻³.