Restrict Content Pro 3.5.43

Fix: Membership level not loading correctly in registration form when using the `id` attribute.
Fix: 3.0 migration - force old expiration date to all lowercase to prevent errors with unexpected capitalization on "none" value.

Modified template files: paypal-express-confirm.php
New: Allow "Payment Method" to be modified on Edit membership screen.
New: Add Idempotency Keys to Stripe POST Requests.
New: Introduce new customer / membership helper functions.
New: Add email auto search when adding a new membership / customer.
New: Add "rcp_add_membership_after" hook to Add Membership page.
Tweak: Reorder and rename email templates to provide better clarity.
Tweak: Update membership "recurring_amount" value on automatic renewals.
Fix: rcp_get_customer_gateway_id() not working correctly for Stripe Checkout.
Fix: Incorrect payment gateway slug being used for "PayPal Express" payments.
Fix: Add additional checks to ensure members get the correct user role when their membership is activated.
Fix: rcp_get_membership_by() returning disabled membership records when it shouldn't be.
Fix: Expired users cron job query not locating all relevant memberships.
Fix: Initial Authorize.net payment being recorded twice.
Fix: Incorrect subscription link URL for live Authorize.net subscriptions.
Fix: "subtotal" payment column not being set for automatic renewals.
Fix: Check if membership ID is set for payments before attempting to complete a registration. This caused problems when inserting payments via the REST API.
Fix: JavaScript errors when adding a custom currency without specific name formatting.
Fix: Registration not failing gracefully if customer record fails to be created.
Fix: Incorrect setting description for "maximum number of simultaneous connections per member".
Fix: 3.0 migration - incorrect user query on multisite installation when RCP is not network activated.
Fix: 3.0 migration - skip membership import if membership level cannot be retrieved. This would occur if someone had a membership for a level that has since been deleted.
Fix: Delete "rcp_pending_payment_id" meta value on registration failure.
Fix: Undefined index notices on PayPal IPN when certain events come through.
Fix: Credits not displayed on PayPal Express confirmation page.

Modified template files: card-update-form.php, change-password.php, login.php, lostpassword.php, paypal-express-confirm.php, profile-editor.php, register-single.php, register.php,
New: Add new "transaction_type" column to payments table to differentiate between renewals, upgrades, downgrades, and new registrations.
New: Gateway Subscription/Customer IDs now link to relevant pages in payment gateway.
New: Add gateway column to admin payments table.
New: Add generic "rcp-button" class to all buttons in templates.
New: Add "rcp_stripe_existing_plan_id" filter to Stripe plan ID when checking if a plan exists.
Tweak: Update Stripe PHP library.
Tweak: Prefix plugin name with "WordPress" in Stripe setAppInfo calls.
Tweak: Include Stripe partner ID in setAppInfo calls.
Tweak: Add extra checks to ensure cancellation emails do not get sent on upgrades/downgrades.
Tweak: Braintree: search for existing customer by ID when processing a payment.
Tweak: When calculating prorate credit amount, apply filter to $0 return values.
Tweak: Adjust description on "Membership Level" setting for discount codes.
Fix: Expiration date not extended if a user has 0 historical payments while manually renewing their membership before the expiration date. (This may have affected imported users renewing for the first time.)
Fix: Certain circumstances may cause PayPal Express to charge an incorrect amount on manual renewals, if the first payment was discounted for other reasons.
Fix: Plugin upgrade process not running if manually upgrading the plugin in a way that involves reactivating the plugin.
Fix: Improve WP_User_Query backwards compatibility when checking "rcp_status" meta key/value.
Fix: Deprecated rcp_get_member_cancel_url() function returning wrong membership ID.
Fix: Memberships admin table bulk actions not working.
Fix: Stripe Checkout transaction IDs not linked in admin.
Fix: Credits incorrectly being added to payment record during renewals.
Fix: Restricting by role through the meta box doesn't work if the user doesn't also have a membership.
Fix: PayPal Standard amount verification causes IPN to fail if there's a record mismatch. This would only happen if you'd edited a membership level price at some point.
Fix: User role sometimes not being added on membership activation.
Fix: No longer require object_id when adding a new membership. This fixes some issues with backwards compatibility when using update_user_meta() with old values.