The AP Style Guide has provided new guidance on usage in several areas.

PR Daily summarizes the changes, and here are some of the highlights:

• In the sports chapter are changes for several sports. Advice includes avoiding exaggeration: ("A team losing a game is not a 'disaster'") and using lower case for skating moves even if they're named after someone.
• You may write BLT without defining the ingredients.
• Although climate change is more accurate, global warming may be used interchangeably. 

• The guide suggests  avoiding "the term committed suicide except in direct quotations from authorities." 

  Instead, write "killed himself, took her own life or died by suicide."

Discussion Starters: 

• Who uses the AP Style Guide, and why are these changes important?
• The Guide's Facebook page suggests writing "April Fools' Day." What do you think? 
• Notice that the last bullet, above, includes a quotation from the experts but no serial (or Oxford comma). Explain!