knative / knative/specs

Missing support for upgrades and mixing versions in future?

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Description

It seems to me that the current specification for 1.0 is missing support for running multiple versions of Knative event processors?

In future wha should happen when upgrading to when clusters are upgraded from 1.0 to 1.1 (or 2.0)?

At minimum I think we need ot have reliable way to detect version of KE (and cloud events) supported for event processors?

Something like detecting Knative version during HTTP options in data plane?

https://github.com/knative/specs/blob/7a678bde2e951197004cac2726664cb510f52c77/specs/eventing/data-plane.md#http-verbs

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First steps

  1. Read the whole issue, then the project's contributing guide.
  2. Comment on the issue to say you are picking it up — it saves two people doing the same work.
  3. Fork the repository and make your change on a branch.
  4. Open a pull request that references the issue number.

Research direction

Start with specs/eventing/data-plane.md, especially the HTTP verbs section linked in the issue, and review how the specification describes event processors and Cloud Events. Determine the required behavior for detecting supported versions and for upgrades or mixed versions, then document a concrete compatibility requirement and acceptance criteria.

Written by the indexing model from the issue text.

Assessment

Domain
api, distributed-systems
Issue type
Feature
Difficulty
5/5
Estimated time
Over a week
Activity status
Stale
Clarity
Needs clarification
Newbie friendliness
20/100

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