jessie has been released!

lib/puppet/parser/functions/debian_nextcodename.rb

@@ -3,7 +3,8 @@ module Puppet::Parser::Functions
     case args[0]
       when "squeeze" then "wheezy"
       when "wheezy"  then "jessie"
-      when "jessie"  then "sid"
+      when "jessie"  then "stretch"
+      when "stretch" then "sid"
       when "sid"     then "experimental"
       else "sid"
     end

lib/puppet/parser/functions/debian_release.rb

@@ -1,9 +1,10 @@
 module Puppet::Parser::Functions
   newfunction(:debian_release, :type => :rvalue) do |args|
     case args[0]
-      when 'squeeze'      then 'oldstable'
-      when 'wheezy'       then 'stable'
-      when 'jessie'       then 'testing'
+      when 'squeeze'      then 'oldoldstable'
+      when 'wheezy'       then 'oldstable'
+      when 'jessie'       then 'stable'
+      when 'stretch'      then 'testing'
       when 'sid'          then 'unstable'
       when 'experimental' then 'experimental'
       else 'testing'

lib/puppet/parser/functions/debian_release_version.rb

@@ -3,6 +3,9 @@ module Puppet::Parser::Functions
     case args[0]
       when 'squeeze'      then '6.0'
       when 'wheezy'       then '7.0'
+      when 'jessie'       then '8.0'
+      when 'stretch'      then '9.0'
+      when 'buster'       then '10.0'
       else ''
     end
   end