There is one huge change from the previous Leap versions. openSUSE Leap 15.3 is built not just from SUSE Linux Enterprise source code like in previous versions, but built with the exact same binary packages, which strengthens the flow between Leap and SLE like a yin yang.
This release is hugely beneficial for migration projects and user acceptance testing. Large development teams gain added value by using openSUSE Leap 15.3 to optimally run and test workloads that can be lifted and shifted to SUSE Linux Enterprise Linux 15 SP3 for long-term maintenance.
openSUSE Leap offers a clear advantage for servers by providing at least 18 months of updates for each release. The community is supportive and engages with people who use older versions of Leap through community channels like the mailing lists, Matrix, Discord, Telegram, Facebook, etc.
The mutual relationship shared by openSUSE Leap 15.3 and SLE 15 Service Pack 3 give users of both the same choices for thousands of community supported packages. These community packages are built in an openSUSE project called “Backports” on top of the baseline of SLE. Backports are published to SUSE Package Hub, so migrations from Leap to SLE are uniform and instantaneous. Migrations between the two is fast. With a btrfs filesystem, users can test on Leap, deploy to SLE and even rollback to a Leap snapshot.
Leap empowers its users to run as many CPUs and host as many virtual machines without any limitations. Users of Leap can migrate existing server, virtual machine or containers over to SUSE Linux Enterprise, should there be a need to “turn on” enterprise support at a later time.
Many of the packages in openSUSE Leap 15.3 remain the same as those in the previous version.