1# 2024-07-10-isa-changelog 2 3This document describes change log with the following modifications: 4 5* Version 6* Bytecode instructions 7 8## Version 9We update version from 12.0.5.0 to 12.0.6.0 10 11## Bytecode instructions 12To support [lazy import](https://gitee.com/openharmony/docs/blob/3cc4941c35f525895c9710c761d92f1a4d799f11/zh-cn/application-dev/quick-start/arkts-lazy-import.md), the following bytecode instructions are added for loading module variables lazily: 13 - callruntime.ldlazymodulevar 14 - callruntime.wideldlazymodulevar 15 - callruntime.ldlazysendablemodulevar 16 - callruntime.wideldlazysendablemodulevar