diff -r f065e201c95a -r ef42d4f12cfc script/utils/export_twitter_alchemy.py
--- a/script/utils/export_twitter_alchemy.py	Tue Dec 29 13:33:00 2015 +0100
+++ b/script/utils/export_twitter_alchemy.py	Fri Jan 01 01:11:05 2016 +0100
@@ -491,6 +491,7 @@
 
                     meta_element = etree.SubElement(element, u'meta')
 
+                    etree.SubElement(meta_element, u"polemic_version").text = options.protocol_version
                     parse_polemics = protocol_version_map.get(options.protocol_version, parse_polemics_2)
                     polemics_list = parse_polemics(tw, options.extended_mode)
                     if polemics_list: