# Julia version lower bound for new manifest format

**URL:** https://discourse.julialang.org/t/julia-version-lower-bound-for-new-manifest-format/76152
**Category:** General Usage
**Tags:** question, packages
**Created:** [February 10, 2022, 10:02am UTC](https://discourse.julialang.org/t/julia-version-lower-bound-for-new-manifest-format/76152 "2022-02-10T10:02:52Z")
**Posts on this page:** 5
**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: [February 10, 2022, 10:02am UTC](https://discourse.julialang.org/t/julia-version-lower-bound-for-new-manifest-format/76152/1 "2022-02-10T10:02:52Z")

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If a package wants to use the new manifest format, what’s the lower bound for the Julia version?

Some discussions [suggests that backporting it to 1.6 was planned](https://discourse.julialang.org/t/what-are-the-current-plans-regarding-a-new-lts-julia-version/63501/5), but I could not find it.

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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 10, 2022, 10:33am UTC](https://discourse.julialang.org/t/julia-version-lower-bound-for-new-manifest-format/76152/2 "2022-02-10T10:33:26Z")

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Version 1.6.2.

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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: [February 10, 2022, 10:42am UTC](https://discourse.julialang.org/t/julia-version-lower-bound-for-new-manifest-format/76152/3 "2022-02-10T10:42:11Z")

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Thanks. Would it make sense for the [warning message](https://github.com/JuliaLang/Pkg.jl/blob/7f526047ab71e7a5787e151764f9352f38bc552e/src/manifest.jl#L285) to mention this?

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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 10, 2022, 10:43am UTC](https://discourse.julialang.org/t/julia-version-lower-bound-for-new-manifest-format/76152/4 "2022-02-10T10:43:22Z")

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Yea, that’s a good idea.

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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: [February 10, 2022, 10:57am UTC](https://discourse.julialang.org/t/julia-version-lower-bound-for-new-manifest-format/76152/5 "2022-02-10T10:57:28Z")

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Done, thanks for the help.

[https://github.com/JuliaLang/Pkg.jl/pull/2980](https://github.com/JuliaLang/Pkg.jl/pull/2980)