Closes #21788: Return CSV export as a streaming response (#21974)

docs/configuration/miscellaneous.md

@@ -123,6 +123,18 @@ The maximum size (in bytes) of an incoming HTTP request (i.e. `GET` or `POST` da
 
 ---
 
+## STREAMING_EXPORTS
+
+!!! note "This parameter was introduced in NetBox v4.6."
+
+Default: `False`
+
+When set to `True`, CSV bulk exports are returned as a streaming HTTP response, emitting rows to the client as they are rendered rather than buffering the entire dataset in memory first. This can significantly reduce memory usage and time-to-first-byte for very large exports.
+
+Because streaming responses do not have a `Content-Length` header and defer errors until after the response has begun, this behavior is opt-in.
+
+---
+
 ## ENFORCE_GLOBAL_UNIQUE
 
 !!! tip "Dynamic Configuration Parameter"