[lancewillett]

Adds the WordPress version under test to Slack notifications from the Upgrade Tests and Installation Tests workflows.

Before:

❗ A run of the Upgrade Tests workflow has failed for the trunk branch.

After:

❗ A run of the Upgrade Tests (WordPress 5.1) workflow has failed for the trunk branch.

Changes

• slack-notifications.yml: new optional version input. When set, it is appended to workflow_name in the payload. Callers that don't pass it get the same message as today.
• upgrade-testing.yml: passes new-version, defaulting to latest.
• install-testing.yml: passes wp-version, defaulting to nightly.

The version goes into the existing workflow_name field rather than a new payload key, because the Slack Workflow builds its message from fixed variables. A new key would not appear without editing the Slack Workflow too.

Testing

• actionlint passes on the three changed files.
• Ran the payload step locally: 5.1 gives "Upgrade Tests (WordPress 5.1)"; an empty version gives "Upgrade Tests".
• The Slack post itself can only be checked after commit, since the notification job runs only in WordPress/wordpress-develop and not on pull requests. The commit itself triggers both workflows, so the new text should show up in #core-firehose and #core-ci-firehose on success, or #core on a failure or recovery.

Trac ticket: https://core.trac.wordpress.org/ticket/66401

Use of AI Tools

AI assistance: Yes
Tool(s): Claude Code
Model(s): Claude Opus 5.5
Used for: Drafting the change, the local payload check, and this description; reviewed by me.

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This Pull Request is for code review only. Please keep all other discussion in the Trac ticket. Do not merge this Pull Request. See GitHub Pull Requests for Code Review in the Core Handbook for more details.

🤖 Generated with Claude Code

[github-actions]

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Props lancewillett.

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[Copilot]

🟢 Approval recommended

No active review issues were identified for the changes adding the WordPress version under test to Slack notifications.

No open issues 🎉

What changed in this PR

Adds the WordPress version under test to Slack notifications for upgrade and installation workflows, using the existing workflow-name field.

Changes:

• Adds an optional version input to the shared Slack workflow, preserving existing messages when omitted.
• Passes the selected upgrade version, defaulting to latest.
• Passes the selected installation version, defaulting to nightly.

File	Description
.github/​workflows/​upgrade-testing.yml	Passes the upgrade target version to Slack notifications.
.github/​workflows/​slack-notifications.yml	Appends the optional WordPress version to the workflow name.
.github/​workflows/​install-testing.yml	Passes the installation version to Slack notifications.

_{Review effort: Balanced}

[lancewillett]

PR #15128 landed in https://core.trac.wordpress.org/changeset/65005