We always post our changelog in our "learn" pages automatically: https://docs.brewersfriend.com/changelog. In case you may have noticed some new features, this list will show you the entire changelog:

2020-11-06

• 
  Added
  
• Calculators - Added a new calculator to convert from extract and base malt grains.
  
  • https://www.brewersfriend.com/extract-to-base-grain-conversion-calculator/