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