book: add v1.3 -> v1.4 migration doc

Author: VibhorChinda

docs/book/src/SUMMARY.md

@@ -85,6 +85,7 @@
           - [v1.0 to v1.1](./developer/providers/v1.0-to-v1.1.md)
           - [v1.1 to v1.2](./developer/providers/v1.1-to-v1.2.md)
           - [v1.2 to v1.3](./developer/providers/v1.2-to-v1.3.md)
+          - [v1.3 to v1.4](./developer/providers/v1.3-to-v1.4.md)
         - [Provider contracts](./developer/providers/contracts.md)
           - [Cluster Infrastructure](./developer/providers/cluster-infrastructure.md)
           - [Machine Infrastructure](./developer/providers/machine-infrastructure.md)

docs/book/src/developer/providers/v1.3-to-v1.4.md

@@ -0,0 +1,33 @@
+# Cluster API v1.3 compared to v1.4
+
+This document provides an overview over relevant changes between Cluster API v1.3 and v1.4 for
+maintainers of providers and consumers of our Go API.
+
+## Minimum Go version
+
+* The Go version used by Cluster API is still Go 1.19.x
+
+## Dependencies
+
+**Note**: Only the most relevant dependencies are listed, `k8s.io/` and `ginkgo`/`gomega` dependencies
+in Cluster API are kept in sync with the versions used by `sigs.k8s.io/controller-runtime`. 
+
+-
+
+## Changes by Kind
+
+### Deprecation
+
+-
+
+### Removals
+
+-
+
+### API Changes
+
+-
+
+### Other
+
+-