The work programme of the secretariat for the biennium 2026–2027 outlines the core budget, supplementary and other resources required by the secretariat to implement its mandates and achieve the stated objectives and expected results. This document provides an update reflecting adjustments to the work programme arising from conclusions adopted by the subsidiary bodies at their sixty-fourth sessions. It should be read in conjunction with decision 20/CP.30, which contains the approved programme budget for the biennium 2026–2027, document FCCC/SBI/2025/8/Add.1, which contains the work programme of the secretariat for the biennium 2026–2027 and document FCCC/SBI/2026/INF.3/Rev.1, which contains an update of the work programme of the secretariat for the biennium 2026–2027, as at 1 January 2026.