sepago – Events, News, Hintergründe | 4. Oktober 2017 | Sven Jansen Updating NetScaler? Check your “valid till” date!We had this little issue just recently, so I decided to blog this little reminder.There are several reasons why you would want to update your NetScaler firmware to a more recent version. Be it security updates, added features or just your regular update cycle, one day you will run an update.One thing you have to check during updating is the “valid till” date. Open your license file(s) with a text editor of your choice and check line 6.