diff --git a/Developing.md b/Developing.md
index 71774c3..6d3797c 100644
--- a/Developing.md
+++ b/Developing.md
@@ -5,3 +5,21 @@ Structure of repository
 * first-experiments - our first wild steps
 * master - small fixes, typos, etc
 * feature-XXX - branches from master for bigger coding
+
+Citrix Release Codenames
+========================
+
+* https://www.thomas-krenn.com/de/wiki/Citrix_XenServer
+* https://xenserver.org/partners/11-product.html
+* https://www.citrix.com/support/product-lifecycle/product-matrix.html
+
+so it may be:
+
+`Version` - `Code Name` (`Release Date`)
+* 7.4(?)- Jura (27.02.2018)
+* 7.3 - Inverness (13.12.2017)
+* (?)- Honolulu
+* 7.2 - Falcon (25.05.2017)
+* 7.1 - Ely (23.02.2017)
+* 7.0 - Dundee (24.05.2016)
+* 6.5 - Creedence (13.01.2015)
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