2027.1 Indri Release Schedule

2027.1 Indri Release Schedule

Note

Deadlines are generally the Thursday of the week on which they are noted below. Exceptions to this policy will be explicitly mentioned in the event description.

1 October, 2026 - 24 March, 2027 (25 weeks)

Week

Cross-project events

Project-specific events

Sep 28 - Oct 02

Oct 05 - Oct 09

R-24

Oct 12 - Oct 16

R-23

Oct 19 - Oct 23

R-22

Oct 26 - Oct 30

R-21

Nov 02 - Nov 06

R-20

Nov 09 - Nov 13

R-19

Nov 16 - Nov 20

R-18

Nov 23 - Nov 27

R-17

Nov 30 - Dec 04

R-16

Dec 07 - Dec 11

R-15

Dec 14 - Dec 18

R-14

Dec 21 - Dec 25

R-13

Dec 28 - Jan 01

R-12

Jan 04 - Jan 08

R-11

Jan 11 - Jan 15

R-10

Jan 18 - Jan 22

R-9

Jan 25 - Jan 29

R-8

Feb 01 - Feb 05

R-7

Feb 08 - Feb 12

R-6

Feb 15 - Feb 19

R-5

Feb 22 - Feb 26

R-4

Mar 01 - Mar 05

R-3

Mar 08 - Mar 12

R-2

Mar 15 - Mar 19

R-1

Mar 22 - Mar 26

R+0

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Cross-project events

PTG (virtual)

From 12 to 16 October, 2026 we’ll have a virtual PTG to plan the 2027.1 Indri release schedule.

Indri-1 milestone

19 November, 2026 is the Indri-1 milestone. See project-specific notes for relevant deadlines.

2026.2 Hibiscus Cycle-Trailing Release Deadline

All projects following the cycle-trailing release model must release their 2026.2 Hibiscus deliverables by 3 December, 2026.

Indri-2 milestone

14 January, 2027 is the Indri-2 milestone. See project-specific notes for relevant deadlines.

Membership Freeze

Projects must participate in at least two milestones in order to be considered part of the release. Projects made official after the second milestone, or which fail to produce milestone releases for at least one of the first and second milestones as well as the third milestone, are therefore not considered part of the release for the cycle. This does not apply to cycle-trailing packaging / lifecycle management projects.

Extra-AC freeze

All contributions to OpenStack are valuable, but some are not expressed as Gerrit code changes. That allow teams to list active contributors to their projects and who do not have a code contribution this cycle, and therefore won’t automatically be considered an Active Contributor and allowed to vote. This is done by adding extra-acs to https://opendev.org/openstack/governance/src/branch/master/reference/projects.yaml before the Extra-AC freeze date.

Final release for non-client libraries

Libraries that are not client libraries (Oslo and others) should issue their final release during this week. That allows to give time for last-minute changes before feature freeze.

Indri-3 milestone

18 February, 2027 is the Indri-3 milestone. See project-specific notes for relevant deadlines.

Feature freeze

The Indri-3 milestone marks feature freeze for projects following the release:cycle-with-rc model. No featureful patch should be landed after this point. Exceptions may be granted by the project PTL.

Final release for client libraries

Client libraries should issue their final release during this week, to match feature freeze.

Soft String Freeze

You are no longer allowed to accept proposed changes containing modifications in user-facing strings. Such changes should be rejected by the review team and postponed until the next series development opens (which should happen when RC1 is published).

Requirements Freeze

After the Indri-3 milestone, only critical requirements and constraints changes will be allowed. Freezing our requirements list gives packagers downstream an opportunity to catch up and prepare packages for everything necessary for distributions of the upcoming release. The requirements remain frozen until the stable branches are created, with the release candidates.

RC1 target week

The week of 1 March, 2027 is the target date for projects following the release:cycle-with-rc model to issue their first release candidate.

Hard String Freeze

This happens when the RC1 for the project is tagged. At this point, ideally no strings are changed (or added, or removed), to give translators time to finish up their efforts.

Final RCs and intermediary releases

The week of 15 March, 2027 is the last week to issue release candidates or intermediary releases before release week. During release week, only final-release-critical releases will be accepted (at the discretion of the release team).

2027.1 Indri release

The 2027.1 Indri coordinated release will happen on Wednesday, 24 March, 2027.

Cycle Highlights

Cycle highlights need to be added to the release deliverables after the feature freeze to be included in any marketing release messaging. Highlights may be added after this point, but they will likely only be useful for historical purposes.

See the Project Team Guide for more details and instructions on adding these highlights.

For examples of previous release highlights: 2025.2 Flamingo Highlights. 2026.1 Gazpacho Highlights.

Project-specific events

Cinder

Cinder Spec Freeze

All Cinder Specs for features to be implemented in Indri must be approved by Friday 20 November 2026 (23:59 UTC).

Cinder Midcycle Meeting #1

Two-hour video meeting, 1400-1600 UTC, taking the place of the regular weekly cinder meeting on Wednesday 2 December 2026. See the cinder Indri weekly meeting agenda etherpad for details.

Cinder New Driver Merge Deadline

The deadline for merging a new backend driver to Cinder for the Indri release is Thursday 14 January 2027 (20:00 UTC). New drivers must be (a) code complete including unit tests, (b) merged into the code repository, and (c) must have a 3rd Party CI running reliably. (The idea is that new drivers will be included in a release at the second milestone and thus be easily available for downstream testing, documentation feedback, etc.)

Cinder New Feature Status Checkpoint

If your new Cinder feature requires client support or os-brick changes, keep in mind that the final Indri release for os-brick is in three weeks, and the final release for client libraries is in four weeks. Thus your Cinder feature should be substantially complete with unit tests by this time so that any client or os-brick changes can be reviewed, tested, and merged before 11 February 2027 (for os-brick) or 18 February 2027 (for client libraries).

Cinder Midcycle Meeting #2

Two-hour video meeting, 1400-1600 UTC, taking the place of the regular weekly cinder meeting on Wednesday 20 January 2027. See the cinder Indri weekly meeting agenda etherpad for details.

Cinder Driver Features Declaration

New features added to Cinder drivers must be merged at the time of the OpenStack-wide Feature Freeze, which is coming up in three weeks. Before the Cinder meeting this week, you should post a blueprint in Launchpad listing the Gerrit reviews of features you’d like to land in Indri. This will help the team prioritize reviews and give you candid early feedback on whether the features look ready. (Note that this is different than driver bug fixes, which can be landed up until 4 March 2027 during RC-1 target week.)

Cinder 3rd Party CI Compliance Checkpoint

This is a reminder that in order for a Cinder driver to be considered ‘supported’ in the Indri release, its third party CI must be running properly when the Cinder team does a final compliance check around the time of the third milestone. See the Driver Compliance section of the Cinder Documentation for details.

Nova

Nova Spec Review Day

On 05 January 2027 and 12 January 2027, Nova specifications targeting 2027.1 Indri implementation will be prioritized for reviews by the Nova core team.

Nova Spec Soft Freeze

After 17 December 2026 (23:59 UTC), no new specs or specless blueprints will be accepted.

Nova Spec Freeze

All Nova specs and specless blueprints for features to be implemented in 2027.1 Indri must be approved by 14 January 2027 (23:59 UTC). This deadline applies to all feature designs, whether they require a formal spec or not.

Nova Implementation Review Day

On 04 February 2027 and 11 February 2027, Nova prioritized code changes will be reviewed by the Nova core team.

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