rail writes https://hg.mozilla.org/build/buildbot-configs/file/tip/mozilla/release-thunderbird-comm-esr52.py.template#l45 is missing 'mail/config/version_display.txt', like in https://hg.mozilla.org/build/buildbot-configs/file/tip/mozilla/release-thunderbird-comm-beta.py.template#l55. Once it's fixed, we need to merge the changes to production ... and we need another build after we fix the configs I can review
Created attachment 8858090 [details] [diff] [review] Bug1356325.patch Rail, is this what you thought?
Created attachment 8858091 [details] [diff] [review] Fix - v1 I'm not sure if we need to use nextAppVersion or add nextVersion and use that. I compared with what fennec does and there it seems beta uses nextVersion and release uses nextAppVersion.
Just a note that when testing release-localtest the correct build ID was shown in troubleshooting information. I tested at least 3 times with various versions