# Upgrade from V7.2 to V7.5

**URL:** <https://forum.inductiveautomation.com/t/upgrade-from-v7-2-to-v7-5/5132>\
**Category:** Ignition\
**Created:** [September 11, 2012, 10:22pm UTC](https://forum.inductiveautomation.com/t/upgrade-from-v7-2-to-v7-5/5132 "2012-09-11T22:22:01Z")\
**Posts on this page:** 6\
**Page:** 1

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**Author:** ![Curlyandshemp](https://avatars.discourse-cdn.com/v4/letter/c/bcef8e/32.png) [@Curlyandshemp](https://forum.inductiveautomation.com/u/Curlyandshemp)\
**Post date:** [September 11, 2012, 10:22pm UTC](https://forum.inductiveautomation.com/t/upgrade-from-v7-2-to-v7-5/5132/1 "2012-09-11T22:22:01Z")

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I will be soon upgrading a Mission Critical application from V7.2 to V7.5. Anyone know of any ‘gotcha’ that I may encounter?

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**Author:** ![Kevin.Herron](https://sea1.discourse-cdn.com/inductiveautomation/user_avatar/forum.inductiveautomation.com/kevin.herron/32/7259_2.png) [@Kevin.Herron](https://forum.inductiveautomation.com/u/Kevin.Herron)\
**Post date:** [September 11, 2012, 10:26pm UTC](https://forum.inductiveautomation.com/t/upgrade-from-v7-2-to-v7-5/5132/2 "2012-09-11T22:26:38Z")

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Jython was upgraded from 2.1 to 2.5 between those versions. People have run into a few minor problems with their existing scripts in some cases, especially when it comes to how other modules/functions are imported.

This is something you definitely want to test before upgrading a production environment.

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**Author:** ![James.Lorenz](https://sea1.discourse-cdn.com/inductiveautomation/user_avatar/forum.inductiveautomation.com/james.lorenz/32/3290_2.png) [@James.Lorenz](https://forum.inductiveautomation.com/u/James.Lorenz)\
**Post date:** [September 11, 2012, 11:59pm UTC](https://forum.inductiveautomation.com/t/upgrade-from-v7-2-to-v7-5/5132/3 "2012-09-11T23:59:45Z")

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I believe you will also lose user login information for the Ignition Gateway service if you have those privileges set up. This only applies if you have a user/password set up in the “Log On” tab of the Ignition Gateway service properties.

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**Author:** ![JordanCClark](https://sea1.discourse-cdn.com/inductiveautomation/user_avatar/forum.inductiveautomation.com/jordancclark/32/83362_2.png) [@JordanCClark](https://forum.inductiveautomation.com/u/JordanCClark)\
**Post date:** [September 12, 2012, 9:30am UTC](https://forum.inductiveautomation.com/t/upgrade-from-v7-2-to-v7-5/5132/4 "2012-09-12T09:30:16Z")

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Topic [here](http://inductiveautomation.com/forum/viewtopic.php?f=70&t=8427) discussing some of the upgrade issue possibilities…

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**Author:** ![Curlyandshemp](https://avatars.discourse-cdn.com/v4/letter/c/bcef8e/32.png) [@Curlyandshemp](https://forum.inductiveautomation.com/u/Curlyandshemp)\
**Post date:** [September 12, 2012, 10:50am UTC](https://forum.inductiveautomation.com/t/upgrade-from-v7-2-to-v7-5/5132/5 "2012-09-12T10:50:07Z")

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Will this also apply ( scripting issues ) from V7.2 to V7.4?  
This is an out of town and I want to minimize having to make return trips to correct issues as they pop up. I will test as best as I can in my office before doing the field upgrade.

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**Author:** ![Kevin.Herron](https://sea1.discourse-cdn.com/inductiveautomation/user_avatar/forum.inductiveautomation.com/kevin.herron/32/7259_2.png) [@Kevin.Herron](https://forum.inductiveautomation.com/u/Kevin.Herron)\
**Post date:** [September 12, 2012, 2:24pm UTC](https://forum.inductiveautomation.com/t/upgrade-from-v7-2-to-v7-5/5132/6 "2012-09-12T14:24:16Z")

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[quote=“Curlyandshemp”]Will this also apply ( scripting issues ) from V7.2 to V7.4?  
This is an out of town and I want to minimize having to make return trips to correct issues as they pop up. I will test as best as I can in my office before doing the field upgrade.[/quote]

Yes, the upgrade happened in 7.4.