# Why does juliaup delete the old versions?

**URL:** <https://discourse.julialang.org/t/why-does-juliaup-delete-the-old-versions/108193>\
**Category:** General Usage\
**Tags:** juliaup\
**Created:** [December 30, 2023, 6:58pm UTC](https://discourse.julialang.org/t/why-does-juliaup-delete-the-old-versions/108193 "2023-12-30T18:58:23Z")\
**Posts on this page:** 1\
**Showing post:** 5

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**Author:** ![davidanthoff](https://sea2.discourse-cdn.com/julialang/user_avatar/discourse.julialang.org/davidanthoff/32/223493_2.png) [@davidanthoff](https://discourse.julialang.org/u/davidanthoff)\
**Post date:** [December 30, 2023, 8:12pm UTC](https://discourse.julialang.org/t/why-does-juliaup-delete-the-old-versions/108193/5 "2023-12-30T20:12:05Z")

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Ah, also missed the details on the `startup.jl` in the original post 🙂

@oheil is right, the `startup.jl` in the Julia specific folders is not the right place to add modifications, in general with Juliaup you should consider everything inside the `~/.julia/juliaup` folder as managed by Juliaup and you should not modify anything there by hand. `~/.julia/config/startup.jl` is the right place to put your own custom startup code into. If you want to do different things for different Julia versions you can just use a `if VERSION` block in the `startup.jl`.

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