Navigate to the folder for your desired version number and download jenkins.war . You can then run it manually using java -jar jenkins.war . 2. Native OS Packages
Some older plugins may not be compatible with the newest Jenkins core or require a specific Jenkins baseline to function. download jenkins older versions
If you prefer using a package manager (like apt for Debian/Ubuntu or yum for Red Hat), you can access historical repositories: Navigate to the folder for your desired version
Upgrading Jenkins is generally recommended for security and features, but several scenarios might require you to roll back or stay on an older build: download jenkins older versions