--- a/MozillaFirefox/firefox-esr.spec	Sat Dec 12 10:06:11 2015 +0100
+++ b/MozillaFirefox/firefox-esr.spec	Sat Dec 19 17:36:33 2015 +0100
@@ -19,9 +19,9 @@
 
 # changed with every update
 %define major 38
-%define mainver %major.4.0
+%define mainver %major.5.0
 %define update_channel esr38
-%define releasedate 2015102700
+%define releasedate 2015121000
 
 # general build definitions
 %if "%{update_channel}" != "aurora"