[Preview] QIIME 2 2020.2 development changelog

:exclamation: Important :exclamation:

The following is an early developer preview of the changes expected in 2020.2

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, weโ€™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: February 10, 2020
  • PRs must be merged by: February 17, 2020
  • Repo Freeze and Package Building: February 20, 2020
  • Release Day: February 21, 2020

Developer Project Board: https://github.com/orgs/qiime2/projects/18

Hereโ€™s the highlights of the release:

  • QIIME 2 Framework

    • placeholder
  • docs

    • placeholder
  • q2cli

    • placeholder
  • q2-emperor

    • @mortonjt added a --p-invert flag to the biplot visualizer which allows you to swap arrows and points (useful for exploring microbe-metabolite data).
  • q2-sample-classifier

    • @jwchen fixed a graphical glitch which would cause the legend of the confusion matrices to be repeatedly plotted when executed multiple times in the Artifact API.
  • q2-demux

    • @EmFord (GH) added an additional suggestion (modifying the new golay correction parameter) to the error that occurs if emp-single/emp-paired are unable to map any reads.
  • q2-feature-classifier

    • @David-Rod created a much nicer error message for when classify-sklearn runs out of memory (a common occurrence).
  • q2-phylogeny

Happy QIIME-ing! :sun_with_face:

1 Like

Hey all, just a brief note on our release schedule for 2020, we are planning on four releases, corresponding with the following months of 2020:

  1. February
  2. May
  3. August
  4. November

These are shifted one month off from our โ€œusualโ€ release schedule, but we think that they will prove to be more convenient for developer schedules :crossed_fingers:. As always, this is subject to change - keep an eye on the forum for more details in the coming weeks and months.