[Preview] QIIME 2 2020.5 development changelog

:exclamation: Important :exclamation:

The following is an early developer preview of the changes expected in 2020.5

This post is a live-document which will be updated throughout our development cycle. Any links will in this topic will be broken until the release is officially published. When we are ready for release, we’ll copy this changelog and create a new post in the Announcements category.

Important Developer Information

Dates (please keep an :eye: on this post, these :calendar: might change):

  • PRs must be submitted by: May 11, 2020
  • PRs must be merged by: May 22, 2020
  • Repo Freeze and Package Building: May 27, 2020
  • Release Day: May 28, 2020

Developer Project Board: https://github.com/orgs/qiime2/projects/19

:exclamation: BREAKING CHANGES

Please update scripts, workflows, etc. as appropriate. Stuck? Reach out here on the forum for help. Want to test this prior to the next release of QIIME 2? Check on the “development environment” instructions here:


Here’s the highlights of the release:

  • QIIME 2 Framework

    • placeholder
  • docs

    • @ChrisKeefe showed us how to peek at an Artifact in the Moving Pictures Tutorial :face_with_raised_eyebrow:

    • @ChrisKeefe added a section to the Importing Tutorial for multiplexed fastq files with barcodes in sequences. :icecream:

  • q2cli

    • @thermokarst fixed up an error message: a tiny typo can cause a surprising amount of confusion! :building_construction:
  • q2-feature-classifier

    • @cherman2 (GH) helped remind us why we don’t have multithreading options for the blast classifier - thanks for the research and code comments! :orange_heart: