What's the latest compatible version to use with angular 5?

[Praveen9999]

Hi,

What's the latest compatible version to use with angular 5?

Problem Statement
We are using version 9.1.1 but with lazy loading I'm facing the issue mentioned in Lazy-loaded modules dont get their translations when "isolate" is false. I'm not able to use extend property in version 9.1.1 . So my question is, In which version the extend property is implemented and whether that version is compatible with angular 5 or not?

[Praveen9999]

okay, its there in readme that in angular 5 we can use 8.x to 9.x. But the extend property is not there in 9.1.1, is there any workaround for the above mentioned issue in 9.1.1.