Sonatype is announcing a milestone release of Sonatype Nexus Repository 1.9 for our partners, developers, and integrators. This version includes many changes and bug fixes, in addition to some important changes to core APIs.
While end-users are welcome to download this pre-release version of Sonatype Nexus Repository, we're not yet announcing the general availability of version 1.9. This announcement is just a heads up to the various plugin developers that have come to rely on Nexus, and this is a chance for developers to start experimenting with the security and event handling changes scheduled for the next major release.
Switching to a New Security Framework
Sonatype swapped Nexus' security framework, moving from JSecurity to Apache Shiro, details on that can be found in Brian Demers' email to the developer's list. For end-users, there is zero impact from this switch to a new security framework.
Improved Performance With Asynchronous Event Inspectors
All event handling in Nexus was done synchronously, which in many cases slowed down different actions. Deployments would have to wait for index merges, and different jobs could interrupt essential system level tasks. While Sonatype rarely received error reports related to this problem, we noticed some issues on our largest installations. We've taken some lessons learned from our internet-scale installations and fed them back into the core architecture.
You should see performance improvements with retrieving and deploying artifacts. As your Nexus instance scales to support thousands of developers, you will benefit from asynchronous event inspectors. Once again, if you are an end-user, you won't notice a difference other than greater performance.
Downloading Sonatype Nexus Repository 1.9-M1
If you are developing plugins or extensions to Nexus, you should download and test your plugins and extensions with this Milestone release. If you are an end-user looking for product support, we recommend that you not upgrade to Nexus 1.9 at this time.
Tim is a Software Architect with experience in all aspects of software development from project inception to developing scaleable production architectures for large-scale systems during critical, high-risk events such as Black Friday. He has helped many organizations ranging from small startups to ...
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