Open source is often at the core of modern enterprise applications and few if any organizations have as much impact as the Apache Software Foundation (ASF).
The Apache Software Foundation runs its open source projects on a hierarchy of principally three levels, top-level projects (TLPs), sub-projects and incubated projects. Achieving the TLP status is a major milestone for an open source effort. Among the projects that have recently achieved TLP status is the Apache Netbeans Java Integrated Developer Environment (IDE) and the Apache Skywalking application performance monitoring (APM) efforts.
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