Remove gogo protobuf dependency for Kubernetes API types

[liggitt]

Enhancement Description

• One-line enhancement description (can be used as a release note): Remove gogo protobuf dependency for Kubernetes API types
• Kubernetes Enhancement Proposal: KEP-5589: Initial draft for gogo protobuf removal #5590
• Discussion Link: 🐘 Need a replacement for deprecated/unmaintained gogo-protobuf dependency kubernetes#96564
• PRs by stage and milestone:
  • v1.35
    • KEP (k/enhancements) update PR(s): KEP-5589: Initial draft for gogo protobuf removal #5590
    • Code (k/k) update PR(s):
      • gogo protobuf interface cleanup kubernetes#134228
      • KEP-5598 - drop gogo runtime dependencies kubernetes#134256
    • Docs (k/website) update PR(s):

Please keep this description up to date. This will help the Enhancement Team to track the evolution of the enhancement efficiently.

/sig api-machinery

[liggitt]

/milestone v1.35
/label lead-opted-in

[liggitt]

/sig architecture
/area code-organization

[SubhasmitaSw]

Hello @liggitt 👋, v1.35 Enhancements team here.

This is a reminder of the upcoming PRR freeze on Thursday 9th October 2025 (AoE) / Friday 10th October 2025, 12:00 UTC.

This enhancement is targeting stage stable for v1.35 (correct me, if otherwise)

Here's where this enhancement currently stands:

• PR open or merged with the KEP's PRR questionnaire filled out.

• PR open or merged with kep.yaml updated with the stage, latest-milestone, and milestone struct filled out.

• PR open or merged with a PRR approval file with the PRR approver listed for the stage the KEP is targeting.

Note that the PRs are not required to be approved or merged by the PRR freeze deadline. Having the PRR questionnaire filled out by the deadline will help ensure that the PRR team has enough time to review your KEP before enhancements freeze on Thursday 16th October 2025 (AoE) / Friday 17th October 2025, 12:00 UTC. For more information on the PRR process, see here.

If you anticipate missing PRR freeze, you can file an exception request in advance. Thank you!

/label tracked/yes