spuru9 opened a new pull request, #1131:
URL: https://github.com/apache/flink-kubernetes-operator/pull/1131
## What is the purpose of the change
Bump the Flink version the operator builds against from `1.20.1` (Jan 2025)
to `1.20.4` (Apr 2026) — the latest patch in the 1.20 line — to pick up the bug
and security fixes accumulated across the 1.20.2, 1.20.3 and 1.20.4 releases.
As a patch bump within the same minor it is source/binary compatible.
`flink.version` is the version the operator *builds* against; runtime
support for the wider Flink range (2.0/2.1/2.2) is covered separately by the CI
version matrix, so this does not change which Flink versions the operator can
deploy.
## Brief change log
- Bump `flink.version` `1.20.1` -> `1.20.4` in the root `pom.xml`
- Align the autoscaling example image base from `flink:1.20.1-java17` to
`flink:1.20.4-java17`
- Align the e2e batch-job examples jar from `1.20.1` to `1.20.4`
- Update the `flink-metrics-otel` comment that referenced the pinned
`flink.version`
## Verifying this change
This change is already covered by existing tests / CI. Locally verified that
`mvn clean install javadoc:javadoc -Pgenerate-docs` builds all modules
successfully against Flink 1.20.4.
## Does this pull request potentially affect one of the following parts:
- Dependencies (does it add or upgrade a dependency): **yes** (Flink
`1.20.1` -> `1.20.4`, patch upgrade)
- The public API, i.e., is any changes to the `CustomResourceDescriptors`:
no
- Core observer or reconciler logic that is regularly executed: no
## Documentation
- Does this pull request introduce a new feature? no
- If yes, how is the feature documented? not applicable
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