Update changelogs from fern repo (#461)

Co-authored-by: Swimburger <[email protected]>

Author: fern-support

fern/products/cli-api-reference/cli-changelog/2025-08-11.mdx

@@ -2,7 +2,7 @@
 **`(fix):`** Allow 'securityScheme.scheme' to be case-insensitive.
 
 ## 0.66.1
-**`(fix):`** Add 'vendor' to set of reservved keywords for go.
+**`(fix):`** Add 'vendor' to set of reserved keywords for go.
 
 ## 0.66.01
 **`(chore):`** Improved plumbing of the --runner arg for local SDK generation.

fern/products/cli-api-reference/cli-changelog/2025-08-14.mdx

@@ -0,0 +1,58 @@
+## 0.66.15
+**`(feat):`** Split OpenAPI endpoints with multiple request bodies into multiple endpoints using `x-fern-sdk-method-name`.
+For example, take the following OpenAPI spec:
+```yml
+paths:
+  /documents/upload:
+    post:
+      summary: Upload document metadata (JSON) or document file
+      operationId: uploadDocument
+      requestBody:
+        content:
+          application/json:
+            x-fern-sdk-method-name: uploadJsonDocument
+            schema:
+              type: object
+              properties:
+                title:
+                  type: string
+                author:
+                  type: string
+                tags:
+                  type: array
+                  items:
+                    type: string
+          application/pdf:
+            x-fern-sdk-method-name: uploadPdfDocument
+            schema:
+              type: string
+              format: binary
+```
+
+The OpenAPI spec becomes the following Fern Definition:
+
+```yml
+service:
+  endpoints:
+    uploadJsonDocument:
+      method: POST
+      path: /documents/upload
+      request:
+        body:
+          properties:
+            author: optional<string>
+            tags: optional<list<string>>
+            title: optional<string>
+        content-type: application/json
+        name: UploadDocumentRequest
+        ...
+    uploadPdfDocument:
+      method: POST
+      path: /documents/upload
+      request:
+        body: bytes
+        content-type: application/pdf
+      ...
+```
+
+