# Updating from Wowza ver 4.7.7 to 4.8.0 (New Java Version Installation)

**URL:** <https://community.wowza.com/t/updating-from-wowza-ver-4-7-7-to-4-8-0-new-java-version-installation/55404>\
**Category:** Wowza Streaming Engine\
**Tags:** java\
**Created:** [June 15, 2020, 10:35pm UTC](https://community.wowza.com/t/updating-from-wowza-ver-4-7-7-to-4-8-0-new-java-version-installation/55404 "2020-06-15T22:35:56Z")\
**Posts on this page:** 3\
**Page:** 1

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**Author:** ![Roger\_Villanueva](https://avatars.discourse-cdn.com/v4/letter/r/e19adc/32.png) [@Roger\_Villanueva](https://community.wowza.com/u/Roger_Villanueva)\
**Post date:** [June 15, 2020, 10:35pm UTC](https://community.wowza.com/t/updating-from-wowza-ver-4-7-7-to-4-8-0-new-java-version-installation/55404/1 "2020-06-15T22:35:56Z")

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I’m planning to update my WSE ver 4.7.7 running on Windows 10 (64-bit) to WSE 4.8.0.

I am aware that the new version of WSE requires OpenJDK Java SE JRE 9.0.4 to work.

However, I am a bit confused about the installation of the OpenJDK Java SE JRE 9.0.4 update. Based on the instruction, after unzipping the package and selecting the folder (windows-x64) that matches the OS of my WSE, I need to copy and paste the contents of the said folder into the WSE [install-dir]/jre directory.

Does it mean I need to overwrite the contents of the existing WSE [install-dir]/jre directory which consists of 5 folders (bin, db, include, jre, lib) and other files (COPYRIGHT, LICENSE, README.html, release, THIRPARTYLICENSEREADME.TXT), in case that there are files/folders with the same file names/folder names from the unzip JRE 9 package, and simply keep the other files that are not overwritten?

Can I rename instead the current WSE [install-dir]/jre directory, then create a new WSE [install-dir]jre directory and paste there the contents of the unzipped new Java version?

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**Author:** ![Karel\_Boek](https://sea2.discourse-cdn.com/flex002/user_avatar/community.wowza.com/karel_boek/32/454_2.png) [@Karel\_Boek](https://community.wowza.com/u/Karel_Boek)\
**Post date:** [June 16, 2020, 6:50am UTC](https://community.wowza.com/t/updating-from-wowza-ver-4-7-7-to-4-8-0-new-java-version-installation/55404/2 "2020-06-16T06:50:20Z")

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Here’s the steps that we use when doing upgrades to OpenJDK9:

Stop Wowza

Rename the current JRE folder to jre\_1.8.0\_77

Download [https://wowza-automation.s3.amazonaws.com/jre-9.0.4.zip](https://wowza-automation.s3.amazonaws.com/jre-9.0.4.zip)

Unpack OpenJDK into the Wowza install folder – it’ll create the “jre” subfolder

Move all files from the jre/windows-x64 to the parent folder (thus directly under /jre)

Remove the “jre/macosx-x64” and “jre/linux-x64” folders

Start Wowza

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**Author:** ![Roger\_Villanueva](https://avatars.discourse-cdn.com/v4/letter/r/e19adc/32.png) [@Roger\_Villanueva](https://community.wowza.com/u/Roger_Villanueva)\
**Post date:** [June 16, 2020, 9:53am UTC](https://community.wowza.com/t/updating-from-wowza-ver-4-7-7-to-4-8-0-new-java-version-installation/55404/3 "2020-06-16T09:53:17Z")

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Hi Karel,

Thank you for these clear step-by-step instructions.

–Roger