# Latest

**URL:** https://discourse.julialang.org/latest.md?page=58

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

**Page:** 59

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## [Is scalar getindex supposed to be allocating](https://discourse.julialang.org/t/is-scalar-getindex-supposed-to-be-allocating/135427)

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**Author:** [@Gregstrq](https://discourse.julialang.org/u/Gregstrq)\
**Replies:** 2\
**Last updated:** [February 3, 2026, 2:30pm UTC](https://discourse.julialang.org/t/is-scalar-getindex-supposed-to-be-allocating/135427 "2026-02-03T14:30:30Z")

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I am a bit stumped by the behavior I have bumped into. I thought that only slicing allocates and scalar indexing should not. But try this thing: a = collect(0.0:1.0:10.0) a\[2\] @allocated a\[2\] For me, it somehow alloca…

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## [New OERs for julia courses](https://discourse.julialang.org/t/new-oers-for-julia-courses/98309)

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**Author:** [@BeastyBlacksmith](https://discourse.julialang.org/u/BeastyBlacksmith)\
**Replies:** 5\
**Last updated:** [February 3, 2026, 11:58am UTC](https://discourse.julialang.org/t/new-oers-for-julia-courses/98309 "2026-02-03T11:58:33Z")

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I am happy to share some open educational resources (OER). As part of a introductional julia course I am giving, we produced videos about setting up VSCode + julia and about the git workflow of contributing to a julia p…

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## [Julias v1.12.5 testing period](https://discourse.julialang.org/t/julias-v1-12-5-testing-period/135422)

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**Author:** [@kristoffer.carlsson](https://discourse.julialang.org/u/kristoffer.carlsson)\
**Replies:** 0\
**Last updated:** [February 3, 2026, 11:32am UTC](https://discourse.julialang.org/t/julias-v1-12-5-testing-period/135422 "2026-02-03T11:32:06Z")

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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 v1.12.5. The list of commits included since v1.12.5 is available here. As a patch release, it should be non-breakin…

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## [AnovaGLM: computing partial eta squared](https://discourse.julialang.org/t/anovaglm-computing-partial-eta-squared/135412)

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**Author:** [@mahmah](https://discourse.julialang.org/u/mahmah)\
**Replies:** 1\
**Last updated:** [February 3, 2026, 9:38am UTC](https://discourse.julialang.org/t/anovaglm-computing-partial-eta-squared/135412 "2026-02-03T09:38:54Z")

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Hi, I’ve been using anova\_lm to compute some ANOVAs. However, the tables don’t come with Partial eta squared (\\eta \_{p}^{2}), which is often asked in journals as measure of effect size. And I seem to be unable to access …

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## [\[ANN\] Inline Debugging for Code Cells in VS Code (Call for Testing)](https://discourse.julialang.org/t/ann-inline-debugging-for-code-cells-in-vs-code-call-for-testing/135420)

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**Author:** [@mkh](https://discourse.julialang.org/u/mkh)\
**Replies:** 0\
**Last updated:** [February 3, 2026, 9:37am UTC](https://discourse.julialang.org/t/ann-inline-debugging-for-code-cells-in-vs-code-call-for-testing/135420 "2026-02-03T09:37:09Z")

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Hi everyone, This post announces an upcoming feature for the Julia VS Code extension: Inline Cell Debugging. I’m sharing this Pull Request as an announcement because the core functionality is now complete, and a prebui…

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## [Explain the UniquedById example in the manual](https://discourse.julialang.org/t/explain-the-uniquedbyid-example-in-the-manual/135413)

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**Author:** [@paiv](https://discourse.julialang.org/u/paiv)\
**Replies:** 2\
**Last updated:** [February 3, 2026, 8:06am UTC](https://discourse.julialang.org/t/explain-the-uniquedbyid-example-in-the-manual/135413 "2026-02-03T08:06:34Z")

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The manual section Module initialization and precompilation gives this example of a bad pattern: mutable struct UniquedById myid::Int let counter = 0 UniquedById() = new(counter += 1) end end All s…

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## [There is so much great stuff happening in RISC-V land](https://discourse.julialang.org/t/there-is-so-much-great-stuff-happening-in-risc-v-land/103647)

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**Author:** [@dlakelan](https://discourse.julialang.org/u/dlakelan)\
**Replies:** 39\
**Last updated:** [February 3, 2026, 12:33am UTC](https://discourse.julialang.org/t/there-is-so-much-great-stuff-happening-in-risc-v-land/103647 "2026-02-03T00:33:58Z")

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Like this substantial “microcontroller board” that actually has 64MB of RAM for $9 And this monster server with 64 cores for the price of a typical gaming machine. Debians next release will include RISCV as an archi…

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## [Closures magic and how stable?](https://discourse.julialang.org/t/closures-magic-and-how-stable/135408)

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**Author:** [@mattsignorelli](https://discourse.julialang.org/u/mattsignorelli)\
**Replies:** 7\
**Last updated:** [February 2, 2026, 4:53pm UTC](https://discourse.julialang.org/t/closures-magic-and-how-stable/135408 "2026-02-02T16:53:47Z")

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There is a feature in Julia that has enabled us to do some magical things. It is all thanks to this: julia\> adder(f, a) = ()-\> f() + a adder (generic function with 1 method) julia\> f = ()-\>5 #3 (generic function with 1…

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## [An LLM fine-tuned for Julia, call for comments + help](https://discourse.julialang.org/t/an-llm-fine-tuned-for-julia-call-for-comments-help/113462)

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**Author:** [@cpfiffer](https://discourse.julialang.org/u/cpfiffer)\
**Replies:** 32\
**Last updated:** [February 2, 2026, 4:31pm UTC](https://discourse.julialang.org/t/an-llm-fine-tuned-for-julia-call-for-comments-help/113462 "2026-02-02T16:31:45Z")

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Overview There’s been some discussion in the Julia slack about fine-tuning a model for Julia specifically, in part because the language does not have as large an existing code base as other, much older languages. There’s…

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## [Error when creating my system image with package compiler](https://discourse.julialang.org/t/error-when-creating-my-system-image-with-package-compiler/135409)

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**Author:** [@K5Julien](https://discourse.julialang.org/u/K5Julien)\
**Replies:** 0\
**Last updated:** [February 2, 2026, 2:27pm UTC](https://discourse.julialang.org/t/error-when-creating-my-system-image-with-package-compiler/135409 "2026-02-02T14:27:02Z")

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When I want to create my system image, I get the following error resulting from create\_app, do you have an idea what it means? I don’t understand the error message. julia\> create\_app("MyApp", "mysolver", force=true) Pac…

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## [Social media for JuliaCon](https://discourse.julialang.org/t/social-media-for-juliacon/135402)

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**Author:** [@vchuravy](https://discourse.julialang.org/u/vchuravy)\
**Replies:** 6\
**Last updated:** [February 2, 2026, 2:01pm UTC](https://discourse.julialang.org/t/social-media-for-juliacon/135402 "2026-02-02T14:01:00Z")

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In light of doing a lot of social media for JuliaCon these days, I was wondering what platforms people actually/still use these days. My goal here is to escape the Julia echo chamber and to reach people outside of Discou…

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## [Parameter sensitivity of ODE with parameter-dependent event](https://discourse.julialang.org/t/parameter-sensitivity-of-ode-with-parameter-dependent-event/103602)

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**Author:** [@Neodym](https://discourse.julialang.org/u/Neodym)\
**Replies:** 4\
**Last updated:** [February 2, 2026, 11:28am UTC](https://discourse.julialang.org/t/parameter-sensitivity-of-ode-with-parameter-dependent-event/103602 "2026-02-02T11:28:17Z")

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Hey, I’m trying to get parameter sensitivities of an ODE problem with a parameter-dependent time-event. Just throwing AD at the problem doesn’t seem to work: using OrdinaryDiffEq using SciMLSensitivity using ForwardDi…

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## [Callbacks are skipped in various settings](https://discourse.julialang.org/t/callbacks-are-skipped-in-various-settings/135293)

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**Author:** [@sceptri](https://discourse.julialang.org/u/sceptri)\
**Replies:** 2\
**Last updated:** [February 2, 2026, 10:59am UTC](https://discourse.julialang.org/t/callbacks-are-skipped-in-various-settings/135293 "2026-02-02T10:59:58Z")

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Hello! I am working on simulations related to spiking neuron networks (with discontinuous models, like LIF, and possible delays), and I have run into several problems with callbacks in DifferentialEquations.jl. I opene…

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## [Setting up a more optimal Julia LSP in neovim](https://discourse.julialang.org/t/setting-up-a-more-optimal-julia-lsp-in-neovim/135333)

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**Author:** [@firebat](https://discourse.julialang.org/u/firebat)\
**Replies:** 7\
**Last updated:** [February 2, 2026, 9:54am UTC](https://discourse.julialang.org/t/setting-up-a-more-optimal-julia-lsp-in-neovim/135333 "2026-02-02T09:54:25Z")

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Hello everyone! I have an LSP for Julia in neovim that just doesn’t seem to be performing well. It is unable to do “go to definition” and some of the more rudimentary things that an LSP should do (expose symbols, etc.). …

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## [Adding significance to boxplots and violin plots](https://discourse.julialang.org/t/adding-significance-to-boxplots-and-violin-plots/135398)

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**Author:** [@mahmah](https://discourse.julialang.org/u/mahmah)\
**Replies:** 1\
**Last updated:** [February 2, 2026, 9:53am UTC](https://discourse.julialang.org/t/adding-significance-to-boxplots-and-violin-plots/135398 "2026-02-02T09:53:24Z")

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I’m having the same question as here, but for Algebra of Graphics. How can I add significance stars to boxplots? Thanks!

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## [Invoke for functor methods](https://discourse.julialang.org/t/invoke-for-functor-methods/135397)

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**Author:** [@ettersi](https://discourse.julialang.org/u/ettersi)\
**Replies:** 1\
**Last updated:** [February 2, 2026, 8:20am UTC](https://discourse.julialang.org/t/invoke-for-functor-methods/135397 "2026-02-02T08:20:36Z")

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A minimal example demonstrating the use of invoke() might look something like the following. julia\> abstract type A end struct B \<: A end f(a::A) = "hello world from $a" f(b::B) = invoke(f, Tuple{A}…

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## [Help with CI Failures on JuliaDocs PR #2870](https://discourse.julialang.org/t/help-with-ci-failures-on-juliadocs-pr-2870/135396)

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**Author:** [@AMAN\_KASHYAP](https://discourse.julialang.org/u/AMAN_KASHYAP)\
**Replies:** 2\
**Last updated:** [February 2, 2026, 6:35am UTC](https://discourse.julialang.org/t/help-with-ci-failures-on-juliadocs-pr-2870/135396 "2026-02-02T06:35:58Z")

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Hi everyone! I’m Aman, a B.Tech CS student at Thapar University. I’ve started contributing to the Julia ecosystem recently, specifically focusing on Documenter.jl and JuliaDocs, as I’m hoping to apply for GSoC 2026. I …

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## [Monorepo \[workspace\] structure](https://discourse.julialang.org/t/monorepo-workspace-structure/135255)

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**Author:** [@t-bltg](https://discourse.julialang.org/u/t-bltg)\
**Replies:** 2\
**Last updated:** [February 2, 2026, 12:42am UTC](https://discourse.julialang.org/t/monorepo-workspace-structure/135255 "2026-02-02T00:42:51Z")

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I want to add a \[workspace\] to the monorepo Plots, mostly because of Dependabot. How should I structure it ? Will a toplevel Project.toml without a name, uuid and version work ? Project.toml \[workspace\] projects = \[…

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## [How long before new package version appears on juliapackages.com?](https://discourse.julialang.org/t/how-long-before-new-package-version-appears-on-juliapackages-com/135388)

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**Author:** [@Andrea\_Vigliotti](https://discourse.julialang.org/u/Andrea_Vigliotti)\
**Replies:** 6\
**Last updated:** [February 1, 2026, 9:07pm UTC](https://discourse.julialang.org/t/how-long-before-new-package-version-appears-on-juliapackages-com/135388 "2026-02-01T21:07:58Z")

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A few days ago I called registrator to register a new version of AD4SM from v0.06 to v0.07, after fixing a few issues the registrator terminated successfully with all check passed see here but still juliapackages hold t…

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## [Paper on the accuracy of math functions](https://discourse.julialang.org/t/paper-on-the-accuracy-of-math-functions/132227)

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**Author:** [@JeffreySarnoff](https://discourse.julialang.org/u/JeffreySarnoff)\
**Replies:** 1\
**Last updated:** [February 1, 2026, 9:04pm UTC](https://discourse.julialang.org/t/paper-on-the-accuracy-of-math-functions/132227 "2026-02-01T21:04:20Z")

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Mantas Mikaitis and Tejaswa Rizyal have this well developed, reliable paper The software is available on github:

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## [How to access a Face defined in faces.toml?](https://discourse.julialang.org/t/how-to-access-a-face-defined-in-faces-toml/135387)

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**Author:** [@matthias314](https://discourse.julialang.org/u/matthias314)\
**Replies:** 0\
**Last updated:** [February 1, 2026, 4:09pm UTC](https://discourse.julialang.org/t/how-to-access-a-face-defined-in-faces-toml/135387 "2026-02-01T16:09:12Z")

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If a define a face myface in my config/faces.toml, say \[myface\] inverse = true then I can apply it to strings via styled"{myface:abc}". But what is the official way to get the face itself as an object of type Face?

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## [Concave parameteric surface mesh generation](https://discourse.julialang.org/t/concave-parameteric-surface-mesh-generation/135375)

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**Author:** [@Avina-cK](https://discourse.julialang.org/u/Avina-cK)\
**Replies:** 2\
**Last updated:** [February 1, 2026, 3:54pm UTC](https://discourse.julialang.org/t/concave-parameteric-surface-mesh-generation/135375 "2026-02-01T15:54:10Z")

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I would like to generate a surface mesh, using a parametric function f(x,y,z) = (x-(z^2))^2 + y^2 + z^2-1. Generating points and creating a vertex list is not an issue. How would I create a proper topology, to then crea…

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## [\[ANN\] AustralianElectricityMarkets.jl: Simulate the Australian electricity market](https://discourse.julialang.org/t/ann-australianelectricitymarkets-jl-simulate-the-australian-electricity-market/135383)

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**Author:** [@captainoblivious](https://discourse.julialang.org/u/captainoblivious)\
**Replies:** 1\
**Last updated:** [February 1, 2026, 3:16pm UTC](https://discourse.julialang.org/t/ann-australianelectricitymarkets-jl-simulate-the-australian-electricity-market/135383 "2026-02-01T15:16:54Z")

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Announcing AustralianElectricityMarkets.jl I am excited to announce the release of AustralianElectricityMarkets.jl, a Julia package designed to bridge the Julia energy modelling ecosystem with data from the Australian En…

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## [Direct collocation, stiff dynamics, and discrete adjoints — where does the instability go?](https://discourse.julialang.org/t/direct-collocation-stiff-dynamics-and-discrete-adjoints-where-does-the-instability-go/135385)

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**Author:** [@PhysicsBender](https://discourse.julialang.org/u/PhysicsBender)\
**Replies:** 3\
**Last updated:** [February 1, 2026, 1:33pm UTC](https://discourse.julialang.org/t/direct-collocation-stiff-dynamics-and-discrete-adjoints-where-does-the-instability-go/135385 "2026-02-01T13:33:00Z")

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Hi all, I’ve been experimenting with ModelingToolkit.jl and InfiniteOpt.jl for direct-collocation optimal control problems. In my model I am using smooth boolean logic that is based on hyperbolic functions quite extensi…

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## [Union structs type tag memory layout](https://discourse.julialang.org/t/union-structs-type-tag-memory-layout/133816)

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**Author:** [@PatrickHaecker](https://discourse.julialang.org/u/PatrickHaecker)\
**Replies:** 12\
**Last updated:** [February 1, 2026, 6:55am UTC](https://discourse.julialang.org/t/union-structs-type-tag-memory-layout/133816 "2026-02-01T06:55:16Z")

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Structs containing isbits fields of type Union use the isbits Union structs optimization. I was surprised to learn that The type tag byte for a type’s Union field is stored directly after the field’s computed Union mem…

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## [\[ANN\] ToonFormat.jl - Token-Oriented Object Notation for Julia 🔵](https://discourse.julialang.org/t/ann-toonformat-jl-token-oriented-object-notation-for-julia/134748)

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**Author:** [@scelles](https://discourse.julialang.org/u/scelles)\
**Replies:** 5\
**Last updated:** [January 31, 2026, 8:23pm UTC](https://discourse.julialang.org/t/ann-toonformat-jl-token-oriented-object-notation-for-julia/134748 "2026-01-31T20:23:49Z")

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Hello Julia community! I’m excited to announce ToonFormat.jl, a community-driven Julia implementation of TOON (Token-Oriented Object Notation) - a compact, human-readable serialization format optimized for LLM contexts. …

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## [Install Julia - incorrect image](https://discourse.julialang.org/t/install-julia-incorrect-image/135355)

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**Author:** [@angeloaliano1](https://discourse.julialang.org/u/angeloaliano1)\
**Replies:** 1\
**Last updated:** [January 31, 2026, 6:03pm UTC](https://discourse.julialang.org/t/install-julia-incorrect-image/135355 "2026-01-31T18:03:55Z")

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Dear all, I have installed the last version of Julia using However, when I open VsCode, an error apperars: Could anyone can help me please?

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## [Problem with Optim.optimize](https://discourse.julialang.org/t/problem-with-optim-optimize/135368)

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**Author:** [@dnldlg](https://discourse.julialang.org/u/dnldlg)\
**Replies:** 2\
**Last updated:** [January 31, 2026, 1:45pm UTC](https://discourse.julialang.org/t/problem-with-optim-optimize/135368 "2026-01-31T13:45:23Z")

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Consider the minimal example using Optim f(x) = (x\[1\]-2)^2 + (x\[2\]-3)^2 + sin(3\*x\[1\] + 1) + cos(5\*x\[2\]) optimize(f, \[1., 1.\], BFGS()) For reasons that I don’t comprehend, I get the following error: ERROR: BoundsErro…

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## [Interactive equation solver](https://discourse.julialang.org/t/interactive-equation-solver/135367)

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**Author:** [@dharmatech](https://discourse.julialang.org/u/dharmatech)\
**Replies:** 1\
**Last updated:** [January 31, 2026, 11:02am UTC](https://discourse.julialang.org/t/interactive-equation-solver/135367 "2026-01-31T11:02:23Z")

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Hello :man\_raising\_hand: Are there any projects that provide an interactive equation solver for Symbolics.jl? Here’s an example of what I mean, but for sympy/Python: Just curious to review any existing w…

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## [Show significance on boxplots](https://discourse.julialang.org/t/show-significance-on-boxplots/77365)

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**Author:** [@jewh](https://discourse.julialang.org/u/jewh)\
**Replies:** 18\
**Last updated:** [January 31, 2026, 10:32am UTC](https://discourse.julialang.org/t/show-significance-on-boxplots/77365 "2026-01-31T10:32:34Z")

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I want to annotate the statistical significance of the difference between a pair of boxplots on my figure, as one of 'n.s.', '\*', '\*\*', '\*\*\*'. An example image of what I want is below, the best analogue I can find of wha…

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