Update object mangling mention

Author: DZakh

pages/docs/gentype/latest/supported-types.mdx

@@ -55,13 +55,6 @@ Since objects are immutable by default, their fields will be exported to readonl
 
 It is possible to mix object and option types, so for example the ReScript type `{. "x":int, "y":option<string>}` exports to JS type `{x:number, ?y: string}`, requires no conversion, and allows option pattern matching on the ReScript side.
 
-Object field names follow ReScript's mangling convention (so e.g. `_type` in ReScript represents `type` in JS):
-
-```
-Remove trailing "__" if present.
-Otherwise remove leading "_" when followed by an uppercase letter, or keyword.
-```
-
 ## Tuples
 
 ReScript tuple values of type e.g. `(int, string)` are exported as identical JS values of type `[number, string]`. This requires no conversion, unless one of types of the tuple items does.
@@ -123,20 +116,6 @@ Function components are exported and imported exactly like normal functions. For
 let make = (~name) => React.string(name);
 ```
 
-For renaming, named arguments follow ReScript's mangling convention:
-
-```
-Remove trailing "__" if present.
-Otherwise remove leading "_" when followed by an uppercase letter, or keyword.
-```
-
-For example:
-
-```res
-@genType
-let exampleFunction = (~_type) => "type: " ++ _type
-```
-
 ## Imported Types
 
 It's possible to import an existing TS/Flow type as an opaque type in ReScript. For example,

pages/docs/gentype/latest/usage.mdx

@@ -110,12 +110,14 @@ type persons = array<person>;
 
 ## Renaming, @genType.as, and object mangling convention.
 
-By default, entities with a given name are exported/imported with the same name. However, you might wish to change the appearence of the name on the JS side.
-
 **NOTE:** Starting from ReScript 7.0.0, `@genType.as` on record fields will be discouraged,
-as it incurs a runtime conversion cost. Instead `@bs.as` will be supported and incur zero cost.
+as it incurs a runtime conversion cost. Use a runtime free `@as` instead.
+
+**NOTE:** Starting from ReScript 11.0.0, the object mangling is removed.
+
+By default, entities with a given name are exported/imported with the same name. However, you might wish to change the appearence of the name on the JS side.
 
-For example, in case of a record field whose name is a keyword, such as `type`:
+For example, to use a reserved keyword `type` as a record field:
 
 ```res
 @genType