See the pac4j release notes as well.

Version 9.0.1:

• Removed the useless Pac4jReflectionBuilder

Version 9.0.0:

• Update to pac4j v6

Version 8.1.0:

• The toString method of the Pac4jPrincipal now returns the name

Version 8.0.0:

• buji-pac4j is now only a bridge which must be used with a pac4j security library (for example: javaee-pac4j)

Version 7.0.0:

• Update to pac4j v5.4 (pulls pac4j-javaee)
• Update to Shiro v1.9.0

Version 6.1.0:

• Update to pac4j v5.2 (pulls pac4j-jee)
• Update to Shiro v1.8.0

Version 6.0.0:

• Update to pac4j v5
• Update to Java 11
• Update to Shiro v1.7.0

Version 5.0.1:

• Fix SLO back-channel calls
• Update to Shiro v1.5.3
• Update to pac4j v4.0.1

Version 5.0.0:

• Update to pac4j v4
• Update to Shiro v1.5.2

Version 4.1.1:

• Upgraded to pac4j v3.7.0
• Upgraded to Shiro v1.4.1
• Fixed a bug on the session creation

Version 4.1.0:

• Upgraded to pac4j v3.4.0

Version 4.0.0:

• Upgraded to pac4j v3.0
• Properly handles the failure in Shiro login (by removing the pac4j identity)

Version 3.2.0:

• Added specialized callback and security logics

Version 3.1.0:

• A custom HttpActionAdapter can be used on the callback endpoint
• Upgrade to pac4j v2.2.1

Version 3.0.0:

• Upgrade to pac4j v2.1.0

Version 2.2.0:

• The config, clients, pac4jRealm, pac4jSubjectFactory and callbackFilter components are available by default (they are automatically loaded thanks to the Pac4jIniEnvironment component)
• Upgrade to Shiro v1.4.0 and pac4j v1.9.7

Version 2.1.0-RC1:

• Proper session initialization for indirect clients
• Upgrade to Scribe 1.4.0-RC2
• Upgrade to pac4j v1.9.5

Version 2.0.3:

• Upgrade to pac4j v1.9.4 (security fix)

Version 2.0.2:

• Upgrade to Shiro 1.3.2
• Upgrade to pac4j v1.9.2 (improved CAS, JWT and OpenID Connect supports)
• Replace ShiroContext by ShiroProfileManager

Version 2.0.1:

• Fix serialization issues on Pac4jPrincipal
• Upgrade to Shiro 1.3.1

Version 2.0.0:

• Based on pac4j v1.9.1 (Java 8, Shiro 1.3.0, Servlet 3.1...)
• Using all pac4j capabilities: clients, authorizers, matchers, SecurityFilter, CallbackFilter
• Multi-profiles support
• Merge buji-pac4j-core and buji-pac4j-servlet into a single buji-pac4j component

Version 1.4.0:

• Upgrade to pac4j v1.8.1 (Updated OAuth, CAS, SAML, OpenID Connect supports + customizable callback urls)
• Update to Java 7, Shiro 1.2.4, Servlet 3

Version 1.3.1:

• Update to pac4j v1.7 (new OpenID Connect and Strava supports, removed Google OpenID support)

Version 1.3.0:

• Split core and servlet
• Update to pac4j 1.6.0 (new Google App Engine module, support for Yahoo with OpenID, Support for ORCiD / OAuth)

Version 1.2.3:

• Upgrade to Shiro 1.2.3
• Add Bitbucket support

Version 1.2.2:

• Update to pac4j 1.5.0 : new PayPal OAuth 2.0 support
• remove myopenid.com support
• add vk.com support
• add Foursquare support
• add SAML support

Version 1.2.1:

• Update to pac4j 1.4.1 : new LinkedIn OAuth 2.0 and Google OpenID providers

Version 1.2.0:

• Based on pac4j 1.4.0 : add supports for OpenID, HTTP and CAS protocols

Version 1.1.0:

• All providers have a CommonProfile
• Multiple providers can be gathered in a ProvidersDefinition and share the same OAuth callback url

Version 1.0.0:

• This is the first version of the library
• Support of DropBox, Facebook, GitHub, Google, LinkedIn, Twitter, Windows Live, WordPress and Yahoo