# \[sources\] in Project.toml prior to 1.11

**URL:** https://discourse.julialang.org/t/sources-in-project-toml-prior-to-1-11/132218
**Category:** General Usage
**Tags:** question, pkg
**Created:** [September 9, 2025, 8:24am UTC](https://discourse.julialang.org/t/sources-in-project-toml-prior-to-1-11/132218 "2025-09-09T08:24:26Z")
**Posts on this page:** 3
**Page:** 1

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### Author: ![Tamas\_Papp](https://sea2.discourse-cdn.com/julialang/user_avatar/discourse.julialang.org/tamas_papp/32/25949_2.png) [@Tamas\_Papp](https://discourse.julialang.org/u/Tamas_Papp)
#### Post date: [September 9, 2025, 8:24am UTC](https://discourse.julialang.org/t/sources-in-project-toml-prior-to-1-11/132218/1 "2025-09-09T08:24:26Z")

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Just checking: is it OK to have a

```toml
[sources]
MainPackage = {path = ".."}

```

in the `test/Project.toml` of a package prior to the Julia versions which actually support it?

My understanding is that those versions will

1. just quietly ignore it when the file is read (which is innocuous),
2. may actually delete it if the `Project.toml` is modified using the `pkg>` mode UI, (which I hope to notice when reviewing the commit if it ever happens 😉)

Is this correct?

---

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### Author: ![giordano](https://sea2.discourse-cdn.com/julialang/user_avatar/discourse.julialang.org/giordano/32/2166_2.png) [@giordano](https://discourse.julialang.org/u/giordano)
#### Post date: [September 9, 2025, 8:47am UTC](https://discourse.julialang.org/t/sources-in-project-toml-prior-to-1-11/132218/2 "2025-09-09T08:47:51Z")

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> [@Tamas\_Papp](#):
>
> Is this correct?

Yes, but [`[sources]` was introduced in Julia v1.11](https://julialang.org/blog/2024/10/julia-1.11-highlights/#sources_section_in_projecttoml_in_pkgjl), not v1.12.

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### Author: ![Oscar\_Smith](https://sea2.discourse-cdn.com/julialang/user_avatar/discourse.julialang.org/oscar_smith/32/25343_2.png) [@Oscar\_Smith](https://discourse.julialang.org/u/Oscar_Smith)
#### Post date: [September 9, 2025, 2:26pm UTC](https://discourse.julialang.org/t/sources-in-project-toml-prior-to-1-11/132218/3 "2025-09-09T14:26:36Z")

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I also think there is some chance we backport it to 1.10. It’s so nice that it’s a shame to not have on the LTS release. (and it’s the kind of nice that is especially nice for people doing the sort of private code base things that make them likely to want to use the LTS)