Some more details about Apache Airflow: 1) we announce the intention of making the release in the community and ask people to raise any important issues they would like to get "in" (currently we are in active development for Airflow 2.0 but we are cherry-picking quite a number of changes to 1.10 line
2) we make sure to review all JIRA issues marked previously for inclusion in 1.10.* line and (semi-automatically) make sure that code <> JIRA is in sync 3) we prepare a release candidate and we ask the community to test & install it - we have quite a number of automated tests (>4500) to test the release + we are working on the automation of system tests (or e2e tests). Anyone can take a look and tests this new release and install it as RC release from pypi (so we also test the process of installation). 4) we start the regular voting process which lasts at least 72 and following the ASF rules we have to have at least 3 PMC members to vote +1 (and no veto) to release it. 5) the releases so far are approximately every 2 months or so. No "regular" planned relaese schedule. For 2.0 we were thinking to change it to regular release schedule but this is in a discussion phase. 6) quite recently we also voted on backport releases as well. While regular releases of airflow release "everything", big part of Airflow are so called "providers" - i.e. integrations with external systems Airflow orchestrates. We implemented a change that all providers in 2.0 have been moved to a new package and we develop them independently from 1.10 line there, but we want to make those available for 1.10 and we are going to release backport providers packages separately with less regular cadence (this will be per-provider, which we have about ~ 60 separate providers. This will be done differently - we are going to run semi-automated "system" test per-provider and release the providers one-by-one as soon as system tests for that provider is completed. Those will be released with Calver versioning -(backport-providers-google-1.10-2020.03.13 for example). J.
