Feat: Use-mysql-version-8.4-by-default-in-cfd#1343
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May 26, 2026
This PR aims to change the default mysql_version in cf-D from 8.0 to 8.4 and deprecate the experimental/use-mysql-version-8.4.yml ops file. The ops file has been validated in the Release Integration CI pipelines (hermione environment) and is now promoted inline into the base manifest per the ops-file promotion workflow.
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Please take a moment to review the questions before submitting the PR
WHAT is this change about?
This PR aims to change the default mysql_version in cf-D from 8.0 to 8.4 and deprecate the experimental/use-mysql-version-8.4.yml ops file.
The ops file has been validated in the Release Integration CI pipelines (hermione environment) and is now promoted inline into the base manifest per the ops-file promotion workflow.
What customer problem is being addressed? Use customer persona to define the problem e.g. Alana is unable to...
Alana expects the default MySQL version used to be in-support.
Please provide any contextual information.
Has a cf-deployment including this change passed cf-acceptance-tests?
Does this PR introduce a breaking change? Please take a moment to read through the examples before answering the question.
How should this change be described in cf-deployment release notes?
This release changes the default MySQL version 8.0 to 8.4 (Percona XtraDB Cluster). Deploying directly onto an existing MySQL 8.0 environment without following the PXC in-place upgrade procedure might result in a failed deployment.
Operators currently using use-mysql-version-8.4.yml are unaffected and can safely remove it from their pipelines — it is now a no-op.
Does this PR introduce a new BOSH release into the base cf-deployment.yml manifest or any ops-files?
Does this PR make a change to an experimental or GA'd feature/component?
Please provide Acceptance Criteria for this change?
What is the level of urgency for publishing this change?
Tag your pair, your PM, and/or team!
None