Add 1.9 Release Schedule Timeline

releases/release-1.9/README.md

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+# Kubeflow 1.9
+
+### Links
+
+- [Release Team](release-team.md)
+- [Calendar](https://www.kubeflow.org/docs/about/community/#kubeflow-community-calendars)
+- [Meeting Notes / Recordings](https://bit.ly/kf-release-team-notes)
+- [Project Board (Private)](https://github.com/orgs/kubeflow/projects/61)
+- Contact
+  - [#release](https://app.slack.com/client/T7QLHSH6U/C9V2WT2KV) on slack
+  - [@release-team](https://github.com/orgs/kubeflow/teams/release-team) on GitHub
+
+### TL;DR
+
+The 1.9 release cycle is proposed as follows
+
+- **Monday, Jan 8th 2024**  : Week 0  - Release team is formed
+- **Monday, Jan 15th 2024** : Week 1  - Release cycle begins
+- **Monday, Jan 29th 2024** : Week 3  - Roadmaps are finalised
+- **Monday, Mar 4th 2024** : Week 8  - Release team Checkpoint - Development should be 50%+, initial docs, test plan
+- **Monday, Apr 15th 2024** : Week 14 - Feature freeze, manifests sync starts, docs update starts
+- **Monday, Apr 29th 2024** : Week 16 - RC.0 is cut
+- **Monday, May 20rd 2024** : Week 19 - Manifests sync ends, manifests testing and bug fixing starts
+- **Monday, May 27th 2024** : Week 20 - Manifests testing and bug fixing ends, distribution testing starts
+- **Monday, Jun 17th 2024** : Week 23 - Distribution testing ends, pre-release bug fixing stage starts
+- **Monday, Jul 1st 2024**  : Week 25 - Pre-release bug fixing stage ends
+- **Monday, Jul 8th 2024**  : Week 26 - Docs update ends
+- **Monday, Jul 8th 2024**  : Week 26 - Kubeflow v1.9 Released
+
+## Timeline
+
+
+| **When** | **Week** | **Who** | **What** |
+| -------- | -------- | ------- | -------- |
+| Monday, Jan 8th 2024 | Week 0 | Release manager | [Preparation](../handbook.md#preparation) |
+| Monday, Jan 15th 2024 | Week 1 | Release manager | Start of Release Cycle |
+| Monday, Jan 15th 2024 | Week 1 | Community | [Development](../handbook.md#development-10-weeks) |
+| Monday, Mar 4th 2024 | Week 8 | Release team | Release team Checkpoint - Development should be 50%+, initial docs, test plan |
+| Monday, Apr 15th 2024 | Week 14 | Release team | [Feature Freeze](../handbook.md#feature-freeze-2-weeks) |
+| Monday, Apr 15th 2024 | Week 14 | Release manager, WG leads | Manifests sync starts |
+| Monday, Apr 15th 2024 | Week 14 | Docs lead | Docs update starts |
+| Monday, Apr 29th 2024 | Week 16 | Release manager | [v1.9-rc.0 Released](../handbook.md#feature-freeze-2-weeks) |
+| Monday, May 13rd 2024 | Week 18 | Release manager, WG leads | Manifests sync ends |
+| Monday, May 13rd 2024 | Week 18 | Manifests WG | Manifests testing and bug fixing starts |
+| Monday, May 20th 2024 | Week 19 | Manifests WG | Manifests testing and bug fixing ends |
+| Monday, May 20th 2024 | Week 19 | Distributions | Distribution testing starts |
+| Monday, Jun 10th 2024 | Week 22 | Distributions | Distribution testing ends |
+| Monday, Jun 10th 2024 | Week 22 | WGs | Pre-release bug fixing stage starts |
+| Monday, Jun 24th 2024 | Week 24 | WGs | Pre-release bug fixing stage ends |
+| Monday, Jul 1st 2024 | Week 25 | Docs lead | Docs update ends |
+| Monday, Jul 1st 2024 | Week 25 | Release team | **v1.9** Release day |
+| Monday, Jul 1st 2024 | Week 25 | Release team, Docs lead | Publish release blog |
+| Monday, Jul 8th 2024 | Week 26 | Release team | Release retrospective |