# Jenkins Upgrade Issue

**URL:** <https://community.jenkins.io/t/jenkins-upgrade-issue/6405>\
**Category:** Using Jenkins\
**Created:** [March 21, 2023, 10:41pm UTC](https://community.jenkins.io/t/jenkins-upgrade-issue/6405 "2023-03-21T22:41:36Z")\
**Posts on this page:** 1\
**Showing post:** 2

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**Author:** ![MarkEWaite](https://dub1.discourse-cdn.com/flex013/user_avatar/community.jenkins.io/markewaite/32/20_2.png) [@MarkEWaite](https://community.jenkins.io/u/MarkEWaite)\
**Post date:** [March 21, 2023, 10:52pm UTC](https://community.jenkins.io/t/jenkins-upgrade-issue/6405/2 "2023-03-21T22:52:29Z")

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The Windows agent will have a file `agent.jar` installed on it somewhere. A new copy of that file needs to be downloaded from the controller page that is used to configure the agent. Replace the old copy of agent.jar with the new copy and restart the agent.

As an alternative that would avoid the need to download that update yourself, you could switch from the inbound agent configuration you are running now to instead use an ssh (outbound) agent. Rough instructions are available in [Launch Windows agents with OpenSSH](https://github.com/jenkinsci/ssh-slaves-plugin/blob/main/doc/CONFIGURE.md#launch-windows-agents-using-microsoft-openssh).

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_[View the full topic](https://community.jenkins.io/t/jenkins-upgrade-issue/6405)._