# Testing changes to stdlib without remaking the whole of Julia

**URL:** https://discourse.julialang.org/t/testing-changes-to-stdlib-without-remaking-the-whole-of-julia/11998
**Category:** Internals & Design
**Tags:** question
**Created:** [June 27, 2018, 3:02pm UTC](https://discourse.julialang.org/t/testing-changes-to-stdlib-without-remaking-the-whole-of-julia/11998 "2018-06-27T15:02:20Z")
**Posts on this page:** 1
**Showing post:** 4

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### Author: ![fredrikekre](https://sea2.discourse-cdn.com/julialang/user_avatar/discourse.julialang.org/fredrikekre/32/1688_2.png) [@fredrikekre](https://discourse.julialang.org/u/fredrikekre)
#### Post date: [February 15, 2019, 2:45pm UTC](https://discourse.julialang.org/t/testing-changes-to-stdlib-without-remaking-the-whole-of-julia/11998/4 "2019-02-15T14:45:17Z")

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If you have the `Random` stdlib at some other folder you can change its uuid, `pkg> develop path/to/Random` and then `using Random` will use that version. This also works with `Revise`.

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