# Relais quantique

**URL:** <https://discourse.julialang.org/t/relais-quantique/19858>\
**Category:** General Usage\
**Created:** [January 21, 2019, 5:03am UTC](https://discourse.julialang.org/t/relais-quantique/19858 "2019-01-21T05:03:42Z")\
**Posts on this page:** 1\
**Showing post:** 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:** [January 21, 2019, 7:25am UTC](https://discourse.julialang.org/t/relais-quantique/19858/2 "2019-01-21T07:25:45Z")

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You are probably running code written for a (much) earlier version of Julia (note the first message).

You can

> [@PSA: use Julia 0.7 if you are upgrading](https://discourse.julialang.org/t/psa-use-julia-0-7-if-you-are-upgrading/13321):
>
> A lot of people are posting issues where their old code doesn’t work anymore on 1.0 because some function has been renamed or removed. The 0.7 release exists exactly for this reason: your old code will work on 0.7 and give you a specific warning about how to fix your code. If you have any old code, you should use 0.7 to get these warnings before switching to 1.0; even if you just have work habits that may need changing, you should probably use 0.7 for a while. If someone posts an issue like thi…

and if you still encounter errors, reduce your problem to a _minimal_ self-contained example.

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_[View the full topic](https://discourse.julialang.org/t/relais-quantique/19858)._