chore(changelog): update vNext

CHANGELOG.md

@@ -1,5 +1,33 @@
 # Change log
 
+### vNext
+
+#### Features
+
+* Adds [graphql-upload](https://github.com/jaydenseric/graphql-upload) compatible scalar and link for proxying remote file uploads #671
+* Add ability to merge fields from types from different schemas
+* Adds transforms to wrap, extract, and rename fields #1183
+* Adds transform to filter object fields #819
+* Exports visitSchema, SchemaVisitor, healSchema, healTypes, cloneSchema, cloneType, cloneDirective to enable more custom transforms. #1070
+* Allows removing extra delegation layers by passing fetcher/link options directly to delegateToSchema, mergeSchemas, and transformSchema and by filtering directly with filterSchema without additional transformation round #1165
+
+#### Bug Fixes
+
+* Filter unused variables from map when proxying requests
+* Preserve subscription errors when using makeRemoteExecutableSchema
+* Preserve extensions when transforming schemas
+* Fix merging and transforming of custom scalars and enums #501, #1056, #1200
+* Allow renaming of subscription root fields #997, #1002
+* Fix alias resolution to no longer incorrectly fallback to non-aliased field when null #1171
+* Do not remove default directives (skip, include, deprecated) when not merging custom directives #1159
+* Fixes errors support #743, #1037, #1046
+* Fix mergeSchemas to allow resolvers to return fields defined as functions #1061
+* Fix default values with mergeSchemas and addResolveFunctionsToSchema #1121
+* Fix interface and union healing
+* Fix stitching unions of types with enums
+* Fix mocking to work when schema stitching
+* Fix lost directives when adding an enum resolver
+
 ### 4.0.6
 
 * Use `getIntrospectionQuery` instead of deprecated `introspectionQuery` constant from graphql-js