QIIME 2 will succeed QIIME 1 on January 1, 2018. QIIME 1 will no longer be supported at that time, as development and support effort for QIIME will be focused entirely on QIIME 2.
We recommend that existing QIIME users begin transitioning from QIIME 1 to QIIME 2 now. If you're new to QIIME, you should start by learning QIIME 2, not QIIME 1.
QIIME 1 is now considered to be in maintenance mode as we shift our development efforts to QIIME 2. We don't expect to release any new versions of QIIME 1, except for critical bug fixes if necessary. If you're interested in contributing to QIIME, please consider contributing to QIIME 2.
For information on QIIME, see the QIIME website. To get help with using QIIME, visit http://help.qiime.org.
For related software projects and data, see biocore.