# Latest

**URL:** https://discourse.julialang.org/latest.md?page=42

[Latest](https://discourse.julialang.org/latest.md) · [Categories](https://discourse.julialang.org/categories.md) · [Tags](https://discourse.julialang.org/tags.md)

**Page:** 43

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## [Julia v1.12.6 testing period](https://discourse.julialang.org/t/julia-v1-12-6-testing-period/136394)

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**Author:** [@kristoffer.carlsson](https://discourse.julialang.org/u/kristoffer.carlsson)\
**Replies:** 0\
**Last updated:** [March 25, 2026, 8:14pm UTC](https://discourse.julialang.org/t/julia-v1-12-6-testing-period/136394 "2026-03-25T20:14:23Z")

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The release-1.12 branch on the Julia repository now contains the set of commits we’re planning to tag as v1.12.6. The list of commits included since v1.12.6 is available here. As a patch release, it should be non-breakin…

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## [LiteLLM PyPI compromised and Julia resilience to supply-chain attack](https://discourse.julialang.org/t/litellm-pypi-compromised-and-julia-resilience-to-supply-chain-attack/136364)

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**Author:** [@fdekerme](https://discourse.julialang.org/u/fdekerme)\
**Replies:** 4\
**Last updated:** [March 25, 2026, 8:05pm UTC](https://discourse.julialang.org/t/litellm-pypi-compromised-and-julia-resilience-to-supply-chain-attack/136364 "2026-03-25T20:05:19Z")

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Hi everyone, It was recently discovered that the litellm package (v1.82.8) was compromised with a malicious .pth file that could steal SSH keys, environment variables, and other credentials without requiring an explicit…

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## [ApproxFun: Eigenvalue Problem for Linear Differential Algebraic Equations](https://discourse.julialang.org/t/approxfun-eigenvalue-problem-for-linear-differential-algebraic-equations/136369)

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**Author:** [@RayleighLord](https://discourse.julialang.org/u/RayleighLord)\
**Replies:** 7\
**Last updated:** [March 25, 2026, 7:41pm UTC](https://discourse.julialang.org/t/approxfun-eigenvalue-problem-for-linear-differential-algebraic-equations/136369 "2026-03-25T19:41:26Z")

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I want to ask for help and guidance to know if the following problem can be solved using ApproxFun, as I have not encountered any example doing a similar thing. Consider, for instance, a linear system of differential al…

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## [JuliaCon Global 2026: Registration Open & Tickets Available Now](https://discourse.julialang.org/t/juliacon-global-2026-registration-open-tickets-available-now/136391)

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**Author:** [@yangmr04](https://discourse.julialang.org/u/yangmr04)\
**Replies:** 0\
**Last updated:** [March 25, 2026, 6:08pm UTC](https://discourse.julialang.org/t/juliacon-global-2026-registration-open-tickets-available-now/136391 "2026-03-25T18:08:39Z")

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Hi everyone, The registration is open and tickets are available now for JuliaCon Global 2026! Please find more information on the ticketing page here: You can also head directly to our registration portal: The ea…

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## [\[ANN\] CallableModules.jl – Make Julia modules callable](https://discourse.julialang.org/t/ann-callablemodules-jl-make-julia-modules-callable/136341)

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**Author:** [@PatrickHaecker](https://discourse.julialang.org/u/PatrickHaecker)\
**Replies:** 29\
**Last updated:** [March 25, 2026, 3:06pm UTC](https://discourse.julialang.org/t/ann-callablemodules-jl-make-julia-modules-callable/136341 "2026-03-25T15:06:18Z")

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Hi, I am happy to announce CallableModules.jl. By making your module callable, you can, e.g., share the same name as a shell command line interface and as a Julia interface. So if your app accepts the following argumen…

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## [Custom rule for an implicit function in Enzyme](https://discourse.julialang.org/t/custom-rule-for-an-implicit-function-in-enzyme/136259)

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**Author:** [@Tamas\_Papp](https://discourse.julialang.org/u/Tamas_Papp)\
**Replies:** 3\
**Last updated:** [March 25, 2026, 12:01pm UTC](https://discourse.julialang.org/t/custom-rule-for-an-implicit-function-in-enzyme/136259 "2026-03-25T12:01:04Z")

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Consider an implicit function y = f(x) defined via g(x, y) where x, y \\in \\mathbb{R}^n. The user supplies f!(y, x) and g!(r, x, y) as callables, which are wrapped in a struct SquareImplicitFunction{F,G} f!::F …

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## [How to display dynamic value for each agent in interactive plot](https://discourse.julialang.org/t/how-to-display-dynamic-value-for-each-agent-in-interactive-plot/136361)

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**Author:** [@Christopher\_Fisher](https://discourse.julialang.org/u/Christopher_Fisher)\
**Replies:** 5\
**Last updated:** [March 25, 2026, 9:15am UTC](https://discourse.julialang.org/t/how-to-display-dynamic-value-for-each-agent-in-interactive-plot/136361 "2026-03-25T09:15:15Z")

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Hello, I am using Agents.jl and I would like to plot a value for each agent dynamically with abmplot with enable\_inspection = true. This example shows how to generate a static plot of this variety (here is the plot). …

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## [Complex workaround needed. Why?](https://discourse.julialang.org/t/complex-workaround-needed-why/136371)

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**Author:** [@ufechner7](https://discourse.julialang.org/u/ufechner7)\
**Replies:** 3\
**Last updated:** [March 25, 2026, 7:31am UTC](https://discourse.julialang.org/t/complex-workaround-needed-why/136371 "2026-03-25T07:31:35Z")

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I need this workaround to avoid crashes due to version conflicts od shared libraries on Linux: if \[\[ "$(uname -s)" == "Linux" \]\]; then export FONTCONFIG\_FILE=/etc/fonts/fonts.conf # On Ubuntu 22.04 the system ha…

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## [Moving away from "manual JLL packages" in the General registry](https://discourse.julialang.org/t/moving-away-from-manual-jll-packages-in-the-general-registry/135754)

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**Author:** [@dilumaluthge](https://discourse.julialang.org/u/dilumaluthge)\
**Replies:** 33\
**Last updated:** [March 25, 2026, 12:05am UTC](https://discourse.julialang.org/t/moving-away-from-manual-jll-packages-in-the-general-registry/135754 "2026-03-25T00:05:32Z")

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By “manual JLL”, I mean a JLL package that does not come from Yggdrasil, the Julia community build tree. In the past, we’ve allowed some manual JLLs to be registered in the General registry. However, after some internal…

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## [Generating structs from JSON files](https://discourse.julialang.org/t/generating-structs-from-json-files/136360)

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**Author:** [@langestefan](https://discourse.julialang.org/u/langestefan)\
**Replies:** 1\
**Last updated:** [March 24, 2026, 11:44pm UTC](https://discourse.julialang.org/t/generating-structs-from-json-files/136360 "2026-03-24T23:44:14Z")

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I need to generate structs (and enums) from a set of JSON files. It seems that only JSON3.jl currently supports this feature? The migration guide does state: If you rely heavily on this feature, continue using JSON3.j…

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## [The role of parameter p in the SciML ecosystem](https://discourse.julialang.org/t/the-role-of-parameter-p-in-the-sciml-ecosystem/136363)

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**Author:** [@Tamas\_Papp](https://discourse.julialang.org/u/Tamas_Papp)\
**Replies:** 5\
**Last updated:** [March 24, 2026, 9:54pm UTC](https://discourse.julialang.org/t/the-role-of-parameter-p-in-the-sciml-ecosystem/136363 "2026-03-24T21:54:13Z")

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Many (most?) of the SciML libraries feature a parameter p in their high-level API. I would like to learn more about the motivation for this design, and the actual specs for what it can be and what it is intended for. Eg…

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## [Makie Precompilation failed in Linux](https://discourse.julialang.org/t/makie-precompilation-failed-in-linux/136368)

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**Author:** [@henry2004y](https://discourse.julialang.org/u/henry2004y)\
**Replies:** 4\
**Last updated:** [March 24, 2026, 9:28pm UTC](https://discourse.julialang.org/t/makie-precompilation-failed-in-linux/136368 "2026-03-24T21:28:54Z")

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Hi, Starting this morning, when I test my package on Linux that relies on packages with Makie extensions, precompilation fails with the following error messages: Precompiling for configuration --code-coverage=@/home/ru…

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## [ERROR: MethodError: similar(::JuMP.Containers.DenseAxisArray) is ambiguous](https://discourse.julialang.org/t/error-methoderror-similar-jump-containers-denseaxisarray-is-ambiguous/136359)

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**Author:** [@WalterMadelim](https://discourse.julialang.org/u/WalterMadelim)\
**Replies:** 1\
**Last updated:** [March 24, 2026, 7:50pm UTC](https://discourse.julialang.org/t/error-methoderror-similar-jump-containers-denseaxisarray-is-ambiguous/136359 "2026-03-24T19:50:31Z")

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I’m on my Windows laptop. And the GLMakie reports an Error. julia\> f = Figure(); julia\> # do some plots to f, without ERROR here, but next: julia\> f Error showing value of type Figure: SYSTEM (REPL): showing an erro…

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## [Avoiding deepcopy() with functions using union of types as input](https://discourse.julialang.org/t/avoiding-deepcopy-with-functions-using-union-of-types-as-input/136337)

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**Author:** [@mahmah](https://discourse.julialang.org/u/mahmah)\
**Replies:** 10\
**Last updated:** [March 24, 2026, 2:17pm UTC](https://discourse.julialang.org/t/avoiding-deepcopy-with-functions-using-union-of-types-as-input/136337 "2026-03-24T14:17:04Z")

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Hi, I have two custom defined types that I use in my functions, i.e. m::Union{T1,T2}. T1 and T2 have some overlaps with respect to field names and number of fields. I want my functions to deliver a new version of etiher…

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## [Building a UI for a SciML biological model: Genie.jl (Web App) vs. Makie.jl (Local GUI)?](https://discourse.julialang.org/t/building-a-ui-for-a-sciml-biological-model-genie-jl-web-app-vs-makie-jl-local-gui/136344)

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**Author:** [@Luca\_Maria\_Moccia](https://discourse.julialang.org/u/Luca_Maria_Moccia)\
**Replies:** 17\
**Last updated:** [March 24, 2026, 1:38pm UTC](https://discourse.julialang.org/t/building-a-ui-for-a-sciml-biological-model-genie-jl-web-app-vs-makie-jl-local-gui/136344 "2026-03-24T13:38:56Z")

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Hi everyone, My colleague and I are currently doing our Master’s internship, and we are working on a synaptic plasticity model built with the SciML ecosystem. Our main goal right now is to build a user-friendly interfa…

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## [Styling inline results in VSCode](https://discourse.julialang.org/t/styling-inline-results-in-vscode/136358)

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**Author:** [@owiecc](https://discourse.julialang.org/u/owiecc)\
**Replies:** 1\
**Last updated:** [March 24, 2026, 1:07pm UTC](https://discourse.julialang.org/t/styling-inline-results-in-vscode/136358 "2026-03-24T13:07:54Z")

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Is it possible to apply a custom style to the inline results? I am using a Nord theme and the results are a bit too visible to me. I like to have them but they do also create visual noise. I know I can clear with a short…

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## [\[ANN\]: WrappedUnions.jl: Wrap a Union for enhanced type-stability](https://discourse.julialang.org/t/ann-wrappedunions-jl-wrap-a-union-for-enhanced-type-stability/132322)

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**Author:** [@Tortar](https://discourse.julialang.org/u/Tortar)\
**Replies:** 11\
**Last updated:** [March 24, 2026, 12:32pm UTC](https://discourse.julialang.org/t/ann-wrappedunions-jl-wrap-a-union-for-enhanced-type-stability/132322 "2026-03-24T12:32:39Z")

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Hi all, I’d like to announce the package WrappedUnions.jl. This package originates by my better understanding of type instabilities caused by using union of types and offers a better interface than my previous attempt L…

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## [How to get file encoding?](https://discourse.julialang.org/t/how-to-get-file-encoding/72325)

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**Author:** [@mathdeep](https://discourse.julialang.org/u/mathdeep)\
**Replies:** 5\
**Last updated:** [March 24, 2026, 9:54am UTC](https://discourse.julialang.org/t/how-to-get-file-encoding/72325 "2026-03-24T09:54:46Z")

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Hi there, Is there a way to find out how a file is encoded with functions? I’m getting a text file and want to do sume stuff. In order to do right stuff, I have to know how the file is encoded, but I can’t find how to …

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## [Julia debugging is extremely slow](https://discourse.julialang.org/t/julia-debugging-is-extremely-slow/135839)

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**Author:** [@tue](https://discourse.julialang.org/u/tue)\
**Replies:** 102\
**Last updated:** [March 24, 2026, 9:07am UTC](https://discourse.julialang.org/t/julia-debugging-is-extremely-slow/135839 "2026-03-24T09:07:16Z")

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I was programming quite a bit in julia about 5-6 years ago but ended up quitting since the debugger was just too unuseable. Now I’m testing it out again for a small side project and I once again find myself with the same…

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## [Change arrow head size in e.g. quiver plots](https://discourse.julialang.org/t/change-arrow-head-size-in-e-g-quiver-plots/109347)

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**Author:** [@Torkel](https://discourse.julialang.org/u/Torkel)\
**Replies:** 7\
**Last updated:** [March 24, 2026, 7:10am UTC](https://discourse.julialang.org/t/change-arrow-head-size-in-e-g-quiver-plots/109347 "2026-03-24T07:10:52Z")

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I am trying to make a quiver plot using Plots. Unfortunatley, the heads of the arrows keeps being way to large for the plot to be usable. I have been trying various arguments to change this, but nothing seems to help. H…

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## [\[ANN\] Sessions.jl, A reactive Julia notebook IDE](https://discourse.julialang.org/t/ann-sessions-jl-a-reactive-julia-notebook-ide/136115)

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**Author:** [@Dale\_James\_Black](https://discourse.julialang.org/u/Dale_James_Black)\
**Replies:** 20\
**Last updated:** [March 24, 2026, 3:33am UTC](https://discourse.julialang.org/t/ann-sessions-jl-a-reactive-julia-notebook-ide/136115 "2026-03-24T03:33:50Z")

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A reactive Julia notebook IDE. Warning: Experimental, alpha-quality software. Untested outside its own test suite. Rough edges everywhere. Everything is subject to breaking changes. If you need a reliable …

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## [SciML FIRK BVP solvers don't pass initial guess to boundary conditions correctly](https://discourse.julialang.org/t/sciml-firk-bvp-solvers-dont-pass-initial-guess-to-boundary-conditions-correctly/136324)

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**Author:** [@ThermionicsGuy](https://discourse.julialang.org/u/ThermionicsGuy)\
**Replies:** 4\
**Last updated:** [March 23, 2026, 10:54pm UTC](https://discourse.julialang.org/t/sciml-firk-bvp-solvers-dont-pass-initial-guess-to-boundary-conditions-correctly/136324 "2026-03-23T22:54:44Z")

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I have a complex non-linear two-point boundary value problem to solve. It’s very sensitive to how close the initial guess is to the final converged answer. I start by solving in a region where convergence is easier, then…

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## [Julia crashes on Fedora 43](https://discourse.julialang.org/t/julia-crashes-on-fedora-43/136350)

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**Author:** [@stustd](https://discourse.julialang.org/u/stustd)\
**Replies:** 7\
**Last updated:** [March 23, 2026, 10:00pm UTC](https://discourse.julialang.org/t/julia-crashes-on-fedora-43/136350 "2026-03-23T22:00:23Z")

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On my Fedora 43 machine, the system default julia-1.11 crashes. Compiling (with gcc-14) the latest release (julia-1.12) from the github source also gets stuck: ../build/gcc-14/usr/share/julia/Compiler/src/reinfer.jl ../…

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## [Create a delay element with DelayDiffEq](https://discourse.julialang.org/t/create-a-delay-element-with-delaydiffeq/136349)

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**Author:** [@VPBML](https://discourse.julialang.org/u/VPBML)\
**Replies:** 0\
**Last updated:** [March 23, 2026, 8:09pm UTC](https://discourse.julialang.org/t/create-a-delay-element-with-delaydiffeq/136349 "2026-03-23T20:09:21Z")

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Hi, I am trying to simulate this simple example of a step input signal to a First Order Plus Delay process with ModelingToolkit and DelayDiffEq but it runs into an error. I wonder if it is possible to make this approach…

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## [Concise encoding of \`nothing\` in Arrow.jl](https://discourse.julialang.org/t/concise-encoding-of-nothing-in-arrow-jl/136348)

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**Author:** [@jar1](https://discourse.julialang.org/u/jar1)\
**Replies:** 0\
**Last updated:** [March 23, 2026, 7:57pm UTC](https://discourse.julialang.org/t/concise-encoding-of-nothing-in-arrow-jl/136348 "2026-03-23T19:57:58Z")

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Arrow.jl encodes Union{Missing, T} concisely, but Union{Nothing, T} takes more space. using Arrow for (label, col) in \[ "Union{Missing,String}" =\> Union{Missing,String}\["a", missing, "b"\], "Union{Nothing,String…

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## [\[ANN\] XRationals.jl](https://discourse.julialang.org/t/ann-xrationals-jl/136347)

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**Author:** [@JeffreySarnoff](https://discourse.julialang.org/u/JeffreySarnoff)\
**Replies:** 0\
**Last updated:** [March 23, 2026, 7:48pm UTC](https://discourse.julialang.org/t/ann-xrationals-jl/136347 "2026-03-23T19:48:19Z")

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From the README.md: Exact rational arithmetic with IEEE-like special values (NaN, Inf, -Inf), overflow-safe saturation, and lazy normalization for impressive throughput. Types Type Alias Backing Overflow Normalizat…

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## [AOT compilation error on Julia 1.12 due to strip-metadata or filter\_stdlibs](https://discourse.julialang.org/t/aot-compilation-error-on-julia-1-12-due-to-strip-metadata-or-filter-stdlibs/133218)

<div class="topic-metadata">

**Author:** [@KSepetanc](https://discourse.julialang.org/u/KSepetanc)\
**Replies:** 3\
**Last updated:** [March 23, 2026, 7:08pm UTC](https://discourse.julialang.org/t/aot-compilation-error-on-julia-1-12-due-to-strip-metadata-or-filter-stdlibs/133218 "2026-03-23T19:08:14Z")

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Normally I use create\_app from PackageCompiler.jl and it completes successfully on Julia 1.11 with complex case (multiple dependencies). On 1.12 it fails so I decided to narrow down the example. Using PackageCompiler 2.2…

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## [Break axis in Makie](https://discourse.julialang.org/t/break-axis-in-makie/62729)

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**Author:** [@Elmo](https://discourse.julialang.org/u/Elmo)\
**Replies:** 14\
**Last updated:** [March 23, 2026, 5:46pm UTC](https://discourse.julialang.org/t/break-axis-in-makie/62729 "2026-03-23T17:46:32Z")

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Hi, I am pretty new to Makie, but I am loving the package so far! Is it possible to have a broken y-axis in Makie? E.g. I want to plot: xs1 = randn(10) ys1 = randn(10) xs2 = randn(10) .+ 3 ys2 = randn(10) .+ 10 fig = …

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## [\[BoundaryValueDiffEq.jl\] Reducing allocations](https://discourse.julialang.org/t/boundaryvaluediffeq-jl-reducing-allocations/136255)

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**Author:** [@MaxSchelski](https://discourse.julialang.org/u/MaxSchelski)\
**Replies:** 9\
**Last updated:** [March 23, 2026, 2:48pm UTC](https://discourse.julialang.org/t/boundaryvaluediffeq-jl-reducing-allocations/136255 "2026-03-23T14:48:23Z")

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Hi, I started to implement my Python pipeline for solving boundary value problems in Julia using BoundaryValueDiffEq.jl. I tried to optimize the functions but I am wondering if it is possible to increase performance fur…

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## [Box shadow in Makie](https://discourse.julialang.org/t/box-shadow-in-makie/136064)

<div class="topic-metadata">

**Author:** [@klafyvel](https://discourse.julialang.org/u/klafyvel)\
**Replies:** 5\
**Last updated:** [March 23, 2026, 12:01pm UTC](https://discourse.julialang.org/t/box-shadow-in-makie/136064 "2026-03-23T12:01:53Z")

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Hi! I am a big fan of de-marking boxes from their background using box shadows. Is there a way to do that in Makie? Thanks for the help!

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