This website will be retired in July 2026.
Read more about the modernization release schedule in this announcement.
Contact the NLM Help Desk with any questions or concerns.
Technical Notes
Switchover to New PubMed
It is expected that on Tuesday, March 21st, the URL for old PubMed (http://www.ncbi.nlm.nih.gov/sites/entrez?db=PubMed) will automatically point to the URL for the new PubMed (http://www.ncbi.nlm.nih.gov/sites/entrez?db=PubMed). The new PubMed that made its debut in September 1999 has many new features including Limits, Index, History and Clipboard [Editor's Note: see NLM Technical Bulletin 1999 September-October; 310]
The old version of PubMed will temporarily remain available through a link that will be added to the new PubMed's sidebar when the switchover takes place. This new link will remain until the old version of PubMed is retired.
It is also expected that on Thursday, March 23rd, any bookmarked URL queries to old PubMed will also automatically point to the new system.
