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Apache Hadoop Versions

Cloudera’s Charles Zedlewski gives a great explanation of the Apache Hadoop versioning and the major features included in each production-ready version:

Apache Hadoop Version

Credit Cloudera. Click to see larger version

Patrick Durusau suggests an even shorter explanation:

There has been some confusion over the jump from 0.2* versions of Hadoop to a release of Hadoop 1.0 at Apache.

You have not missed various 0.3* and later releases!

People familiar with open source projects know that most of the time versions do not carry any meta-information about the maturity of a project. But the higher you go into an enterprise hierarchy the more important software versions are considered. So sometimes it is a good idea to bump up the numbers to something that is perceived by everyone as a mature version. Adoption is sometimes also about perception.

Original title and link: Apache Hadoop Versions (NoSQL database©myNoSQL)