I don’t know about anyone else, but I always look forward to seeing what new terms have made it into MeSH for the coming year. New MeSH for 2015 has been released, and I recommend taking a look by tree subcategory. You can find changed descriptors and deleted descriptors as well.
A couple highlights from my first look a the new MeSH:
New Investigative Techniques include Bioprospecting, Controlled Before-After Studies, Health Information Exchange, Historically Controlled Study, Non-Randomized Controlled Trials as Topic, Patient-Specific Modeling and Protective Factors.
Frankincense has been added as MeSH heading. And in case you’re wondering, Gold is already a MeSH heading, and myrrh oil is a supplementary concept. High Fructose Corn Syrup was also added, which is one that I would have guessed to already be in MeSH.