In early 2020 the default PubMed search page will be updated to a new design. The new design will be mobile-responsive so you can easily search using a phone or tablet.
PubMed is Getting a New Look
Here are a few of the changes:
1. Search results will be sorted by best match by default, NOT by most recent!
You have likely seen best match results in the current PubMed in a box above your normal search results. Best match sorts the results by relevancy using an algorithm that looks at multiple factors, including: how frequently your search terms appear in a particular PubMed reference; the publication type, e.g., practice guideline, clinical trial; systematic review; etc.; and the frequency of clicks to abstracts and full-text.
2. New Cite and Share options
Use the Cite button to generate an AMA, NLM, APA or MLA formatted citation for an article. Use the Share button to easily share the article reference via Facebook or Twitter or as copy-able URL.