OpenJdk 11 vs OpenJdk 13 Adoption

[syates at stevendyates.com]

Hi OpenJDK Mailing list, I am reaching out as I would be interested in  
some general advice and items for consideration when upgrading our  
existing Java 8 adoption to either the OpenJdk 11.* or OpenJdk 13.*.  
My manager has told me she wants to get the best value for her upgrade  
dollars so the version of Java we choose would ideally be supported  
for as long as possible (min 5-6 years) with bugfixes, security  
patches etc.

Also with OpenJDK, how does the patching process work. i.e. If a bug /  
vulnerability is discovered, do these fixes get rolled up and  
distributed to the major Linux distros as part of their regular  
patching cycle? WOuld be interested in how the process works plus any  
guidance you may have would be appreciated. Thank you kindly. :)

Sincerely
Steven Yates