Merge pull request #2345 from SwedbankPay/feature/devp-449_rewrite_ol…

…d_implementations

DEVP-449: Amendments to Old Implementations intro

old-implementations/index.md

@@ -9,13 +9,15 @@ menu_order: 3
 
 If you are a **new merchant** getting started with your implementation,
 [Digital Payments][payments-only] is everything you need. The implementations in
-this section will be maintained, but our focus area going forward, where new
-features are going to be added, is Digital Payments.
+this section are available so merchants already using them can access
+documentation, but no new development or updates will be done here.
 
 If you are an existing merchant already using the Checkout v2, Payment Menu v2
 or Payment Methods v1, we recommend switching to
-[Digital Payments][payments-only] for an even better payment experience. A
-migration guide is coming shortly.
+[Digital Payments][payments-only] for an even better payment experience. For
+Checkout v2 and Payment Menu v2, we have a migration guide available for you.
+For payment method integrations, the [Get Started section][get-started] is the
+place to go.
 
 Even though we rearranged our menu, the implementation sections remain the same,
 and no documentation has been deleted. Follow the links below or in the sidebar
@@ -29,3 +31,5 @@ to find your section.
                          next_title="Payment Menu v2" %}
 
 [payments-only]: /checkout-v3
+[migration-guide]: /checkout-v3/migration-guide
+[get-started]: /checkout-v3/get-started