# ANN: Setfield 1.0

**URL:** <https://discourse.julialang.org/t/ann-setfield-1-0/81504>\
**Category:** Package Announcements\
**Tags:** package\
**Created:** [May 23, 2022, 11:55am UTC](https://discourse.julialang.org/t/ann-setfield-1-0/81504 "2022-05-23T11:55:50Z")\
**Posts on this page:** 1\
**Page:** 1

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**Author:** ![jw3126](https://sea2.discourse-cdn.com/julialang/user_avatar/discourse.julialang.org/jw3126/32/3086_2.png) [@jw3126](https://discourse.julialang.org/u/jw3126)\
**Post date:** [May 23, 2022, 11:55am UTC](https://discourse.julialang.org/t/ann-setfield-1-0/81504/1 "2022-05-23T11:55:50Z")

</div>

I am happy to announce that [Setfield.jl](https://github.com/jw3126/Setfield.jl) is now v1.0.0. Setfield.jl allows to easily produce updated copies of immutable data:

```julia
using Setfield
@set obj.a.b.c = d

```

The package is now battle proven + stable for years and so we tagged it v1.0 to reflect this.