Removed welcome email editor feature flag

[EvanHahn]

closes https://linear.app/ghost/issue/NY-1105

This change should have no user impact. All it does is remove the flag, enabling the feature for everyone.

In addition to automated tests, I manually verified that the new welcome email editor shows up.

[coderabbitai]

No actionable comments were generated in the recent review. 🎉

ℹ️ Recent review info

⚙️ Run configuration

Configuration used: Path: .coderabbit.yaml

Review profile: CHILL

Plan: Pro

Run ID: cc085315-5a5b-4ec0-bd06-3e76255a9879

📥 Commits

Reviewing files that changed from the base of the PR and between 728105e and eba4b01.

⛔ Files ignored due to path filters (1)

• ghost/core/test/e2e-api/admin/__snapshots__/settings.test.js.snap is excluded by !**/*.snap

📒 Files selected for processing (1)

• ghost/core/core/shared/labs.js

💤 Files with no reviewable changes (1)

• ghost/core/core/shared/labs.js

---

Walkthrough

The PR removes the welcomeEmailEditor feature flag from GA feature lists and related conditional logic. WelcomeEmailModal no longer checks the flag and always renders the EmailPreviewModalContent layout (header actions, Test dropdown, subject TextField, MemberEmailEditor, and lexical Hint). Tests were updated to stop mocking labs.welcomeEmailEditor and to use configs reflecting Tenor settings where needed. The welcomeEmailEditor flag is no longer force-enabled in E2E/test flows via the GA features list.

🚥 Pre-merge checks | ✅ 3

✅ Passed checks (3 passed)

Check name	Status	Explanation
Title check	✅ Passed	The title directly and clearly describes the main change: removing the welcome email editor feature flag to enable the feature for all users.
Description check	✅ Passed	The description is related to the changeset, explaining the purpose (removing the flag), expected impact, and verification steps taken by the author.
Docstring Coverage	✅ Passed	No functions found in the changed files to evaluate docstring coverage. Skipping docstring coverage check.

_{✏️ Tip: You can configure your own custom pre-merge checks in the settings.}

✨ Finishing Touches

📝 Generate docstrings

• Create stacked PR
• Commit on current branch

🧪 Generate unit tests (beta)

• Create PR with unit tests
• Commit unit tests in branch claude/quirky-nobel

---

Thanks for using CodeRabbit! It's free for OSS, and your support helps us grow. If you like it, consider giving us a shout-out.

❤️ Share

• X
• Mastodon
• Reddit
• LinkedIn

_{Comment @coderabbitai help to get the list of available commands and usage tips.}