Cleanup of "What is new" section

.openpublishing.redirection.json

@@ -324,6 +324,31 @@
             "source_path": "entity-framework/core/modeling/relational/index.md",
             "redirect_url": "/ef/core/modeling/",
             "redirect_document_id": false
+        },
+        {
+            "source_path": "entity-framework/core/what-is-new/ef-core-3.0/index.md",
+            "redirect_url": "/ef/core/what-is-new/ef-core-3.x",
+            "redirect_document_id": false
+        },
+        {
+            "source_path": "entity-framework/core/what-is-new/ef-core-3.0/breaking-changes.md",
+            "redirect_url": "/ef/core/what-is-new/ef-core-3.x/breaking-changes",
+            "redirect_document_id": false
+        },
+        {
+            "source_path": "entity-framework/core/miscellaneous/1x-2x-upgrade.md",
+            "redirect_url": "/ef/core/what-is-new/ef-core-2.0/upgrade",
+            "redirect_document_id": false
+        },
+        {
+            "source_path": "entity-framework/core/miscellaneous/rc1-rc2-upgrade.md",
+            "redirect_url": "/ef/core/what-is-new",
+            "redirect_document_id": false
+        },
+        {
+            "source_path": "entity-framework/core/miscellaneous/rc2-rtm-upgrade.md",
+            "redirect_url": "/ef/core/what-is-new",
+            "redirect_document_id": false
         }
     ]
 }

entity-framework/core/providers/provider-log.md

@@ -15,9 +15,9 @@ This page contains links to pull requests made on the EF Core repo that may requ
 
 We are starting this log with changes from 2.1 to 2.2. Prior to 2.1 we used the [`providers-beware`](https://github.com/aspnet/EntityFrameworkCore/labels/providers-beware) and [`providers-fyi`](https://github.com/aspnet/EntityFrameworkCore/labels/providers-fyi) labels on our issues and pull requests.
 
-## 2.2 ---> 3.0
+## 2.2 ---> 3.x
 
-Note that many of the [application-level breaking changes](xref:core/what-is-new/ef-core-3.0/breaking-changes) will also impact providers.
+Note that many of the [application-level breaking changes](xref:core/what-is-new/ef-core-3.x/breaking-changes) will also impact providers.
 
 * <https://github.com/aspnet/EntityFrameworkCore/pull/14022>
   * Removed obsolete APIs and collapsed optional parameter overloads

entity-framework/core/miscellaneous/1x-2x-upgrade.md → entity-framework/core/what-is-new/ef-core-2.0/upgrade.md

@@ -4,7 +4,7 @@ description: Instructions and notes for upgrading to Entity Framework Core 2.0
 author: divega
 ms.date: 08/13/2017
 ms.assetid: 8BD43C8C-63D9-4F3A-B954-7BC518A1B7DB
-uid: core/miscellaneous/1x-2x-upgrade
+uid: core/what-is-new/ef-core-2.0/upgrade
 ---
 
 # Upgrading applications from previous versions to EF Core 2.0

entity-framework/core/what-is-new/ef-core-3.0/breaking-changes.md → entity-framework/core/what-is-new/ef-core-3.x/breaking-changes.md

@@ -1,14 +1,14 @@
 ---
-title: Breaking changes in EF Core 3.0 - EF Core
-description: Complete list of breaking changes introduced in Entity Framework Core 3.0
+title: Breaking changes in EF Core 3.x - EF Core
+description: Complete list of breaking changes introduced in Entity Framework Core 3.x
 author: ajcvickers
-ms.date: 12/03/2019
-uid: core/what-is-new/ef-core-3.0/breaking-changes
+ms.date: 09/05/2020
+uid: core/what-is-new/ef-core-3.x/breaking-changes
 ---
 
-# Breaking changes included in EF Core 3.0
+# Breaking changes included in EF Core 3.x
 
-The following API and behavior changes have the potential to break existing applications when upgrading them to 3.0.0.
+The following API and behavior changes have the potential to break existing applications when upgrading them to 3.x.
 Changes that we expect to only impact database providers are documented under [provider changes](xref:core/providers/provider-log).
 
 ## Summary