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Backwards Compatibility Review ✅

Summary

Risk Level: None

This PR introduces a new optional property has_changelog to the internal Subscription TypeScript type and uses it to conditionally hide Install/Connect buttons for SaaS products. The changes are fully backwards compatible with no breaking changes detected.

Rationale:

1. The new has_changelog: boolean property is added to an internal TypeScript interface that models data from the WooCommerce.com API
2. The property is used defensively with strict equality checks (=== true), meaning undefined/missing values will safely prevent button rendering
3. No public APIs are modified - changes are confined to internal UI rendering logic
4. The data originates from WooCommerce.com's API (companion PR: https://github.com/Automattic/woocommerce.com/pull/24640), so this is a coordinated backend+frontend change
5. No PHP APIs, REST endpoints, hooks, filters, or template files are modified

Detailed Analysis

TypeScript Interface Changes

File: plugins/woocommerce/client/admin/client/marketplace/components/my-subscriptions/types.ts:36

Added property:

has_changelog: boolean;

BC Assessment: ✅ Safe

• TypeScript interfaces are compile-time only and don't affect runtime behavior
• The property is added to an internal type used only within the marketplace module (verified via grep: only 4 files import this type, all within /marketplace/)
• No external extensions consume this type
• The type models API response data, so the backend must provide this field (handled by companion WCCOM PR)

Conditional Rendering Logic Changes

File: plugins/woocommerce/client/admin/client/marketplace/components/my-subscriptions/table/rows/functions.tsx:390-402

Before:

} else if (
    subscription.local.installed === false &&
    subscription.subscription_installed === false
) {
    actionButton = <Install subscription={ subscription } />;
} else if (
    subscription.active === false &&
    subscription.subscription_available === true
) {
    actionButton = <ConnectButton subscription={ subscription } variant="link" />;
}

After:

} else if (
    subscription.local.installed === false &&
    subscription.subscription_installed === false &&
    subscription.has_changelog === true
) {
    actionButton = <Install subscription={ subscription } />;
} else if (
    subscription.active === false &&
    subscription.subscription_available === true &&
    subscription.has_changelog === true
) {
    actionButton = <ConnectButton subscription={ subscription } variant="link" />;
}

BC Assessment: ✅ Safe - Defensive Implementation

• Uses strict equality (=== true), so undefined, null, or false values will prevent button rendering
• If the backend doesn't provide has_changelog, buttons won't render (fail-safe behavior)
• This is an additive guard - it only adds an additional condition to existing checks
• No existing functionality is removed; the logic is more restrictive (which is the intended behavior)

Data Flow Analysis

The Subscription data flows from:

1. PHP Backend: WC_Helper::get_subscription_list_data() in includes/admin/helper/class-wc-helper.php:1935
2. REST API: /wc/v3/marketplace/subscriptions endpoint in class-wc-helper-subscriptions-api.php:45
3. Frontend: Fetched via fetchSubscriptions() in utils/functions.tsx:265
4. React Context: Stored in SubscriptionsContext and passed to components

BC Assessment: ✅ Safe

• The PHP backend passes through data from WooCommerce.com's API without schema validation
• The companion WCCOM PR adds the has_changelog field to API responses
• No changes to REST endpoint schemas, parameters, or response structure
• No changes to any WordPress hooks or filters

Ecosystem Impact Assessment

Payment Gateways: ✅ No impact

• No payment gateway code is modified

WooCommerce Extensions (Subscriptions/Bookings/Memberships): ✅ No impact

• Changes only affect marketplace UI for displaying WooCommerce.com subscriptions
• No APIs that extensions depend on are modified
• Extensions that are subscriptions themselves will simply have the new field in their data

Themes Customizing Templates: ✅ No impact

• No template files modified
• No HTML/CSS class names changed
• Changes are React component-internal logic only

Custom Checkout Flows: ✅ No impact

• No checkout-related code modified

Third-party Code Consuming Marketplace Data: ⚠️ Very Low Risk

• If any third-party code reads subscription data via the REST API and uses TypeScript, they would see a new optional field
• Impact: Cosmetic only - TypeScript may show type mismatches, but runtime behavior unchanged
• Likelihood: Very low - the marketplace subscriptions API is intended for internal WooCommerce admin use only

Testing Focus

Primary Test Area: Marketplace My Subscriptions page (/wp-admin/admin.php?page=wc-admin&path=/extensions/subscriptions)

Regression Testing Steps:

1. Traditional downloadable products:

   • Verify Install button still appears for uninstalled traditional extensions/plugins
   • Verify Connect button appears for available but inactive subscriptions
   • Test: Install a product and verify the button changes appropriately

2. SaaS products (non-installable):

   • Verify Install button does NOT appear for SaaS products
   • Verify Connect button does NOT appear for SaaS products
   • Confirm SaaS products still display correctly in the list with other status badges

3. Edge cases:

   • Expired subscriptions: Verify Renew button still appears (unchanged logic)
   • Products without subscriptions: Verify Subscribe button still appears (unchanged logic)
   • Auto-renewal disabled: Verify Auto-renew button still appears (unchanged logic)

4. API compatibility:

   • Test with WooCommerce.com production API (if has_changelog is not yet deployed)
   • Verify graceful degradation if field is missing (buttons should not appear)

Expected Behavior:

• Traditional downloadable products: Install/Connect buttons visible (when conditions met)
• SaaS products (has_changelog: false or undefined): No Install/Connect buttons
• No JavaScript errors in console
• No PHP warnings/errors in debug log

Confidence

95% - High confidence in no breaking changes

Justification:

• All changes are additive and internal to the marketplace module
• No public APIs, hooks, filters, or REST schemas are modified
• TypeScript type change is to an internal, non-exported interface
• Rendering logic uses defensive checks with fail-safe behavior
• The 5% uncertainty accounts for:
  • Potential undocumented third-party code consuming the subscriptions REST API
  • Unexpected interactions if WooCommerce.com API doesn't deploy the backend change
  • Edge case: TypeScript compilation in customizations that import this internal type

Migration/Deprecation Guidance

None required - This is a purely additive change with no deprecations.

For Extension Developers: No action needed. If you have custom code that:

• Consumes /wc/v3/marketplace/subscriptions REST endpoint: The new has_changelog field will appear in responses (safe to ignore)
• Uses TypeScript and imports marketplace types: Update your local types or ignore the new field (it's internal to WooCommerce core)

Conclusion

No breaking changes detected. This PR safely hides Install/Connect buttons for SaaS products that don't have downloadable files, improving the user experience by removing non-functional UI elements. The implementation is defensive, backwards-compatible, and properly coordinated with backend changes.

Pre-merge checks and finishing touches

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Size Change: +16 B (0%)

Total Size: 6.03 MB

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Testing Guidelines

Hi @gedex @bor0 @woocommerce/desire,

Apart from reviewing the code changes, please make sure to review the testing instructions (Guide) and verify that relevant tests (E2E, Unit, Integration, etc.) have been added or updated as needed.

Reminder: PR reviewers are required to document testing performed. This includes:

• 🖼️ Screenshots or screen recordings.
• 📝 List of functionality tested / steps followed.
• 🌐 Site details (environment attributes such as hosting type, plugins, theme, store size, store age, and relevant settings).
• 🔍 Any analysis performed, such as assessing potential impacts on environment attributes and other plugins, conducting performance profiling, or using LLM/AI-based analysis.

⚠️ Within the testing details you provide, please ensure that no sensitive information (such as API keys, passwords, user data, etc.) is included in this public issue.

Test using WordPress Playground

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