Where to get release dates of all versions of JAXB API JAR files?

You can get release dates of all versions of JAXB API JAR files from the MvnRepository.com website:

Go to JAXB (JSR 222) API archive site. You see the following versions of JAXB API and their release dates:

JAR File       Version   JDK   Release Date
------------   -----           ------------
jaxb-api.jar   2.3.1       8   Oct, 2018
jaxb-api.jar   2.3.0           Jul, 2017
jaxb-api.jar   2.2.12          Oct, 2014
jaxb-api.jar   2.2.11          Sep, 2013
jaxb-api.jar   2.2.10          Jul, 2013
jaxb-api.jar   2.2.9           Mar, 2013
jaxb-api.jar   2.2.8           Mar, 2013
jaxb-api.jar   2.2.7           May, 2012
jaxb-api.jar   2.2.6           Dec, 2011
jaxb-api.jar   2.2.5           Oct, 2011
jaxb-api.jar   2.2.4           Jun, 2011
jaxb-api.jar   2.2.3           Jun, 2011
jaxb-api.jar   2.2.2           Dec, 2010
jaxb-api.jar   2.2.1           May, 2010
jaxb-api.jar   2.2         5   Jan, 2010
jaxb-api.jar   2.1             Oct, 2007
jaxb-api.jar   2               Dec, 2006
jaxb-api.jar   1.0.6           Feb, 2011
jaxb-api.jar   1.0.5           Dec, 2006
jaxb-api.jar   1.0.1           Dec, 2006
jaxb-api.jar   1               Jul, 2006

⇒ Download JAXB 2.3 Specification and API JAR

⇐ JAXB 2 Architectural Components

⇑ JAXB (Java Architecture for XML Binding) API Specification

⇑⇑ FAQ for jaxb-*.jar - Java Architecture for XML Binding