Release v26.09.0 includes 0 new publications. This keeps the repository at a total of 220 publications, 1,733 ancient host-associated metagenome samples, 822 ancient microbial genomes, and 803 ancient environmental samples. Furthermore, this keeps the repository at a total of 2,980 ancient host-associated metagenome libraries, 3,673 ancient microbial genomes libraries, and 928 ancient environmental libraries. Finally, this release adds 54 new ancient host-associated metagenome dates and 0 new ancient microbial genome dates. This brings the repository to a total of 592 ancient host-associated metagenome dates and 777 ancient microbial genomes dates. Added Ancient Metagenome: Host Associated C14 Austin 2024 10.1038/s41598-024-64818-7 (added by @nihandilsad) C14 Guinet 2025 10.1016/j.cell.2025.08.003 (added by @ZoePochon) Ancient Single Genome: Host Associated Ancient Metagenome: Environmental Changed fix library_layout of the bone samples of Velsko 2024 (corrected by @alexhbnr) apply changes to samples to comply with validation schemes (corrected by @alexhbnr): Warinner 2014 Scorrano 2022 Granehall 2021 Jacobsen 2021 Maixner 2021 SeguinOrlando 2021 Wibowo 2021 Bozzi 2024 Removed Neolithic Flint Mines at Spiennes (Mons) The Neolithic flint mines at Spiennes, covering more than 100 ha, are the largest and earliest concentration of ancient mines in Europe. They are also remarkable for the diversity of technological solutions used for extraction and for the fact that they are directly linked to a settlement of the same period.