At the 45^th meeting of the Least Developed Countries Expert Group (LEG), which took place in Bujumbura, Burundi, from 20 to 23 February 2024, the LEG discussed progress in implementing its activities for 2023–2024 and developed its work programme for 2024–2025. The meeting included discussions with the Chair of the Least Developed Countries Group on the priorities and needs for support for the least developed countries and with representatives of the Green Climate Fund and relevant organizations on providing support to the least developed countries. This report includes information on the status of formulation and implementation of national adaptation plans in the least developed countries; ongoing activities of the LEG in supporting the least developed countries; technical guidance and support for national adaptation plans; the response of the LEG to mandates from the Conference of the Parties, the Conference of the Parties serving as the meeting of the Parties to the Paris Agreement and the Subsidiary Body for Implementation; the integration of a gender perspective into the work of the LEG; and the collaboration of the LEG with other UNFCCC constituted bodies.