The jenkins we have in trusty is the previous LTS release of jenkins; it contains numerous security vulnerabilities and the maintainer of the Jenkins packages in Ubuntu and Debian (myself) no longer has the capacity to maintain Jenkins plus associated dependencies.
Also having had Jenkins in Ubuntu for the last two years, I also question is supportability in distro; upstream advances quickly and backporting critical security fixes is very hard due to refactoring in the codebase in-between LTS releases of Jenkins (every 3 months or so).
My recommendation is that users switch to using the upstream packages.
The jenkins we have in trusty is the previous LTS release of jenkins; it contains numerous security vulnerabilities and the maintainer of the Jenkins packages in Ubuntu and Debian (myself) no longer has the capacity to maintain Jenkins plus associated dependencies.
Also having had Jenkins in Ubuntu for the last two years, I also question is supportability in distro; upstream advances quickly and backporting critical security fixes is very hard due to refactoring in the codebase in-between LTS releases of Jenkins (every 3 months or so).
My recommendation is that users switch to using the upstream packages.