WooCommerce Subscriptions 6.9.0

* New: Update Action Scheduler to 3.0.
* New: Apply WC styling to subscription statuses, subscription related order and retry meta table statuses. PR#3467, PR#3506
* New: Introduce new Renewal Order On-hold Emails. PR#3475
* Fix: Display gateway specific errors on the subscription change payment method page. PR#3278
* Fix: Order the results from WCS_Retry_Manager::store()->get_retries() correctly according to the orderby arg. Previously this function would always return results ordered by ascending ID. PR#3498
* Fix: Send customer Renewal Order Processing Emails on the correct status transitions. PR#3475
* Fix: Only update the subscription status once when processing $0 renewals orders. Fixes race condition caused by updating two instances of the same order. PR#3531
* Fix: Adjust admin CSS and data metabox for recent changes in WP and WC. PR#3540
* Fix: Fix admin notice error link for failed scheduled action when using WC_Log_Handler_DB. PR#3544
* Fix: Correctly calculate inclusive line item taxes when paying for manual renewal orders. PR#3545
* Fix: Add customer note details to renewal order email templates. PR#3536
* Fix: Validate the subscription start date during admin manual subscription creation. PR#3556
* Fix: Only display the WC Subscriptions activation notice on sites without a subscription product. PR#3558
* Fix: [WC 3.9] Ensure WCS_Retry_Manager::check_order_statuses_for_payment() has default value for the $order parameter. PR3565
* Fix: [WP 5.3] Fix variable subscription product admin field CSS. PR#3564
* Tweak: [WooCommerce dashboard widget] tweak media screen size breakpoints to avoid misalignment issues. PR#3553
* Tweak: Use product object rather than ID when validating mixed checkout setting. Improves compatibility with plugins like Mix and Match and Product Bundles. PR#3551
* Tweak: Display the cart and checkout recurring totals included taxes in a more readable way. PR#3546
* Dev: Allow 3rd party developers using the 'woocommerce_subscriptions_allow_switching_options' filter to add tooltip content. PR#3542

* Fix: Account for prorated switch sign up fees in multi-switches. PR#3519
* Fix: Tooltip content displayed on WooCommerce > Subscriptions administration screen.
* Dev: Add additional hooks in My Account Subscription Details table template. PR#3523

* Tweak: Update the My Account customer has no subscriptions notice to match WC core. PR#3516
* Fix: Add hidden class to subscription_pricing and subscription_sync edit product fields. Fixes a bug when the subscription product types are removed from the edit product type drop-down. PR#3514
* Fix: error on My Account > Payment Methods for non credit card tokens and allow deleting tokens with clear alternative. PR#3482
* Fix: Allow only number of days in specific month for synchronize renewals. PR#3470
* Fix: Save subscription meta box data via set_props(). Fixes fatal error when saving invalid data. PR#3524
* Fix: Use update_option() rather than add_option() to record WC Subscriptions activation. Fixes infinitely running activation hook under some circumstances. PR#3525
* Dev - Opt-in tracking data for Subscriptions PR#3504
Data sent to WooCommerce:
Staging or live site
Live URL
WooCommerce Subscriptions Settings
Dates of the first and last created subscriptions
Number of subscriptions
Number of subscriptions with each status
Gross totals for switch, renewal, resubscribe, and initial totals
Order counts for for switch, renewal, resubscribe, and initial orders
To disable this tracking, opt out of WooCommerce tracking, see WooCommerce Usage Tracking - WooCommerce