Kubernetes 1.33
Current patch release: 1.33.9
End of life in 118 days (June 28, 2026). Plan your upgrade now.
April 23, 2025
April 28, 2026
June 28, 2026
1.33.9 (February 26, 2026)
About Kubernetes 1.33
Kubernetes 1.33 brought in-place resource resize for pods to beta, allowing CPU and memory adjustments without restarting containers, a long-requested feature for production workloads.
Key Changes in Kubernetes 1.33
- ●In-place pod resource resize moved to beta (change CPU/memory limits without restart)
- ●Sidecar containers generally available across more workload types
- ●CEL (Common Expression Language) validation improvements for CRDs
- ●Job API improvements with better handling of indexed jobs and pod failure policies
- ●IPv4/IPv6 dual-stack improvements for service networking
Kubernetes 1.33 is currently under active support, released on April 23, 2025. It receives regular bug fixes, security patches, and may still get minor feature additions. The latest patch release is 1.33.9 (February 26, 2026).
Note that Kubernetes 1.33 is approaching end of life in approximately 118 days. While it is still fully supported right now, this is a good time to start testing your application against the next release to ensure a smooth transition when the time comes.
Migration Notes
Upgrade from 1.32 is standard. Check for deprecated API versions with kubectl api-versions and review the Kubernetes deprecation guide. The ReleaseRun K8s Deprecation Checker can scan your manifests automatically.
Lifecycle Progress
73% through its lifecycle. 118 days remaining.
All Kubernetes Versions
| Version | Released | EOL | Latest | Status |
|---|---|---|---|---|
| 1.35 | December 17, 2025 | February 28, 2027 | 1.35.2 | Active |
| 1.34 | August 27, 2025 | October 27, 2026 | 1.34.5 | Active |
| 1.33 (current page) | April 23, 2025 | June 28, 2026 | 1.33.9 | Active |
| 1.32 | December 11, 2024 | February 28, 2026 | 1.32.13 | End of Life |
| 1.31 | August 13, 2024 | October 28, 2025 | 1.31.14 | End of Life |
| 1.30 | April 17, 2024 | June 28, 2025 | 1.30.14 | End of Life |
| 1.29 | December 13, 2023 | February 28, 2025 | 1.29.15 | End of Life |
| 1.28 | August 15, 2023 | October 28, 2024 | 1.28.15 | End of Life |
| 1.27 | April 11, 2023 | June 28, 2024 | 1.27.16 | End of Life |
| 1.26 | December 8, 2022 | February 28, 2024 | 1.26.15 | End of Life |
| 1.25 | August 23, 2022 | October 27, 2023 | 1.25.16 | End of Life |
| 1.24 | May 3, 2022 | July 28, 2023 | 1.24.17 | End of Life |
| 1.23 | December 7, 2021 | February 28, 2023 | 1.23.17 | End of Life |
| 1.22 | August 4, 2021 | October 28, 2022 | 1.22.17 | End of Life |
| 1.21 | April 8, 2021 | June 28, 2022 | 1.21.14 | End of Life |
| 1.20 | December 8, 2020 | February 28, 2022 | 1.20.15 | End of Life |
| 1.19 | August 26, 2020 | October 28, 2021 | 1.19.16 | End of Life |
| 1.18 | March 25, 2020 | June 18, 2021 | 1.18.20 | End of Life |
| 1.17 | December 7, 2019 | December 25, 2020 | 1.17.17 | End of Life |
| 1.16 | September 18, 2019 | August 4, 2020 | 1.16.15 | End of Life |
Frequently Asked Questions
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