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[SPARK-56851] Remove v1alpha1 version of SparkApp and SparkCluster CRDs#676

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[SPARK-56851] Remove v1alpha1 version of SparkApp and SparkCluster CRDs#676
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@dongjoon-hyun dongjoon-hyun commented May 13, 2026

What changes were proposed in this pull request?

This PR removes the v1alpha1 schema from SparkApplication and SparkCluster CRDs.

Why are the changes needed?

Apache Spark K8s Operator moved away from v1alpha1 over one year. Apache Spark K8s Operator v1.0.0 will enforce v1 more by dropping v1alpha1 support officially.

To slim down the CRDs ahead of the 1.0.0 release. Per Kubernetes API conventions, Alpha versions are for short-lived testing clusters with no long-term support.

Does this PR introduce any user-facing change?

Yes. apiVersion: spark.apache.org/v1alpha1 is no longer accepted. Users should switch to v1 (or temporarily v1beta1) — all three schemas were identical.

How was this patch tested?

Pass the CIs.

Was this patch authored or co-authored using generative AI tooling?

Generated-by: Claude Code (claude-opus-4-7)

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cc @peter-toth , @viirya , @jiangzho , @TQJADE , @aaruna

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Thank you, @viirya and @peter-toth .

@dongjoon-hyun dongjoon-hyun changed the title [SPARK-56851] Remove v1alpha version of SparkApp and SparkCluster CRDs [SPARK-56851] Remove v1alpha1 version of SparkApp and SparkCluster CRDs May 13, 2026
@dongjoon-hyun dongjoon-hyun added this to the 1.0.0 milestone May 13, 2026
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Merged to main

@dongjoon-hyun dongjoon-hyun deleted the SPARK-56851 branch May 13, 2026 20:33
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