On 23 March 2026, at House of Lords Report stage, a new clause was added to the Bill requiring "the Secretary of State to conduct and publish a review of the long-term affordability, intergenerational fairness, fiscal sustainability, and accounting treatment of [the unfunded] public service pension schemes."
It seems likely that the government will look to reverse this change at consideration of amendments (the last stage before Royal Assent). You can read more at columns 1301 to 1318 in this document.