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MeSH and PubMed Baseline Release Scheduled for January 2026

MeSH and PubMed Baseline Release Scheduled for January 2026. NLM Tech Bull. 2025 Nov-Dec;(467):b4.

December 09, 2025 [posted]

You will be able to download 2026 MeSH from links on the NLM Data Distribution page for MeSH Data the week of January 5, 2026. An announcement with further details for the release of 2026 MeSH XML Data will be announced in December 2025.

The updated MeSH 2026 DTDs are available for download at Download MeSH Data.

The update of MEDLINE citations in PubMed with 2026 MeSH is delayed until early 2026. A timeline for this update and the release of the 2026 baseline will be announced in a future Technical Bulletin article.

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