# Upgrade to new Streaming Engine 4.0.1

**URL:** https://community.wowza.com/t/upgrade-to-new-streaming-engine-4-0-1/34858
**Category:** Wowza Streaming Engine
**Created:** [February 26, 2014, 9:33am UTC](https://community.wowza.com/t/upgrade-to-new-streaming-engine-4-0-1/34858 "2014-02-26T09:33:37Z")
**Posts on this page:** 2
**Page:** 1

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### Author: ![Silas\_Silva](https://avatars.discourse-cdn.com/v4/letter/s/8c91f0/32.png) [@Silas\_Silva](https://community.wowza.com/u/Silas_Silva)
#### Post date: [February 26, 2014, 9:33am UTC](https://community.wowza.com/t/upgrade-to-new-streaming-engine-4-0-1/34858/1 "2014-02-26T09:33:37Z")

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Hello,

Today i have Wowza Media Server 3 Monthly Edition 3.5.2 build3747, but i’m looking to upgrade my version to lasted version WSE 4.0.1 is this safe?

Is there a tutorial to upgrade my version?

Or i need this a clean Wowza ? how can i import all applications created on old version to this new version?

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### Author: ![Jason\_Hilton](https://sea2.discourse-cdn.com/flex002/user_avatar/community.wowza.com/jason_hilton/32/437_2.png) [@Jason\_Hilton](https://community.wowza.com/u/Jason_Hilton)
#### Post date: [February 26, 2014, 5:40pm UTC](https://community.wowza.com/t/upgrade-to-new-streaming-engine-4-0-1/34858/2 "2014-02-26T17:40:40Z")

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Hi,

Please find all the information you need for upgrading in our [Upgrade Guide](https://www.wowza.com/products/streaming-engine/upgrade).

Wowza Streaming Engine 4.0.1 is available as an installer can can be downloaded [HERE](https://www.wowza.com/pricing/installer)

Ensure you have a Wowza Streaming Engine 4 key so that you can start the server, this is detailed in the Upgrade Guide linked above.

You should also check out the [Quick Start Guide](https://www.wowza.com/docs/quick-start-guides) which has a lot of useful information.

Jason