anchor.diff:  
   |*Latest Version*
   |2.0.1
  -|4.1.3
  +|4.2.2
   |2.11.2
   |3.0
   |0.12.1
  
positive.code: |Allow external authentication
  |&#10004;
  |&#10004; +
  via Spring security or via pluggable realms written in Groovy
  |&#10004; +
  via Shiro
  |
  
negative.code: (Pro)
  |&#10004; +
  (OSS) browsing, searching and custom metadata aren't supported
  |&#10004;
  |&#10004; +
  read only
  
  