Add changesets

Author: brophdawg11

.changeset/shiny-ghosts-happen.md

@@ -0,0 +1,12 @@
+---
+"@react-router/cloudflare": patch
+"@react-router/architect": patch
+"@react-router/express": patch
+"@react-router/node": patch
+"react-router": patch
+---
+
+[UNSTABLE] Change `getLoadContext` signature (`type GetLoadContextFunction`) when `future.unstable_middleware` is enabled so that it returns an `unstable_RouterContextProvider` instance instead of a `Map` used to contruct the instance internally
+
+- This also removes the `type unstable_InitialContext` export
+- ⚠️ This is a breaking change if you have adopted middleware and are using a custom server with a `getLoadContext` function

.changeset/tiny-turtles-compete.md

@@ -0,0 +1,11 @@
+---
+"@react-router/cloudflare": patch
+"@react-router/architect": patch
+"@react-router/express": patch
+"@react-router/node": patch
+"react-router": patch
+---
+
+[UNSTABLE] Change the `unstable_getContext` signature on `RouterProvider`/`HydratedRouter`/`unstable_RSCHydratedRouter` so that it returns an `unstable_RouterContextProvider` instance instead of a `Map` used to contruct the instance internally
+
+- ⚠️ This is a breaking change if you have adopted the `unstable_getContext` prop