# CENTOS version + upgrade fears... **URL:** \ **Category:** Wowza Streaming Engine\ **Created:** [February 28, 2014, 9:42pm UTC](https://community.wowza.com/t/centos-version-upgrade-fears/38392 "2014-02-28T21:42:30Z")\ **Posts on this page:** 4\ **Page:** 1
**Author:** ![alberto\_misrachi](https://avatars.discourse-cdn.com/v4/letter/a/e79b87/32.png) [@alberto\_misrachi](https://community.wowza.com/u/alberto_misrachi)\ **Post date:** [February 28, 2014, 9:42pm UTC](https://community.wowza.com/t/centos-version-upgrade-fears/38392/1 "2014-02-28T21:42:30Z")
Wich is the Centos version for the new Wowza Streaming Engine… I have a custom module that records the live streams in VOD’s and creates a xml file to create playlists out of the recorded clips. I did not wrote this, how can I be sure this will work on the new Wowza. I would love to move to the new technology, but not being able to just import the configuration makes me wonder if the update would be a nightmare… My site is on production and we can not take a server down, due to upgrade… How can I pre test my upgrade? make sure this will work? I have no clue on how to reproduce the configuration just using the current files to recreate… Is there a safe way to install the new Wowza, configure, test and then change? Thanks ---
**Author:** ![Daren\_Johnson](https://avatars.discourse-cdn.com/v4/letter/d/ee59a6/32.png) [@Daren\_Johnson](https://community.wowza.com/u/Daren_Johnson)\ **Post date:** [February 28, 2014, 10:10pm UTC](https://community.wowza.com/t/centos-version-upgrade-fears/38392/2 "2014-02-28T22:10:08Z")
Hi, Your best option is to create a development/test environment and use a trail license to test with initially. Download a [FREE Trial license here](https://www.wowza.com/pricing/trial). You will need to do a full install of Wowza Streaming Engine 4.0. The full installer is available for [download here.](https://www.wowza.com/pricing/installer) For step-by-step instructions for the upgrade process, including files to save/copy from your previous server and configurations to make, look at the [Upgrade Guide](https://www.wowza.com/docredirect.php?doc=usersGuideUpgrade_4_0_0), If the module is from a 3rd party, check with them to see if there’s a specific 4.0 version available or in the works. Daren ---
**Author:** ![alberto\_misrachi](https://avatars.discourse-cdn.com/v4/letter/a/e79b87/32.png) [@alberto\_misrachi](https://community.wowza.com/u/alberto_misrachi)\ **Post date:** [March 1, 2014, 7:04am UTC](https://community.wowza.com/t/centos-version-upgrade-fears/38392/3 "2014-03-01T07:04:03Z")
Would it work the same if I test on locally on Mac, and then do the same on Linux Centos? ---
**Author:** ![Mike\_Kozlakowski](https://avatars.discourse-cdn.com/v4/letter/m/839c29/32.png) [@Mike\_Kozlakowski](https://community.wowza.com/u/Mike_Kozlakowski)\ **Post date:** [March 1, 2014, 10:19am UTC](https://community.wowza.com/t/centos-version-upgrade-fears/38392/4 "2014-03-01T10:19:14Z")
> Would it work the same if I test on locally on Mac, and then do the same on Linux Centos? I would install Virtualbox on the Mac and run CentOS in a VM, that will get you as close to real world as possible.