Update changelog

CHANGELOG.md

@@ -14,7 +14,10 @@ Description of the upcoming release here.
 
 - [#499](https://github.com/FuelLabs/fuel-vm/pull/499/): The `wasm_bindgen` support of `fuel-asm` and `fuel-types`.
     Each new release also publish a typescript analog of the `fuel-asm` and `fuel-types` crates to the npm.
-
+### Changed
+
+- [#525](https://github.com/FuelLabs/fuel-vm/pull/525): The `$hp` register is no longer restored to it's previous value when returning from a call, making it possible to return heap-allocated types from `CALL`.
+
 
 ## [Version 0.35.0]