# Latest

**URL:** https://discourse.julialang.org/latest.md?page=18

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

**Page:** 19

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## ["Run...Above...Below...Debug" inserted between source file lines (VScode's Julia extension)](https://discourse.julialang.org/t/run-above-below-debug-inserted-between-source-file-lines-vscodes-julia-extension/138292)

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**Author:** [@frodeaux](https://discourse.julialang.org/u/frodeaux)\
**Replies:** 1\
**Last updated:** [July 16, 2026, 7:18pm UTC](https://discourse.julialang.org/t/run-above-below-debug-inserted-between-source-file-lines-vscodes-julia-extension/138292 "2026-07-16T19:18:41Z")

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I love the Julia REPL, but is there a way to suppress the “Run…Above…Below…Debug” control bar that seems to be inserted randomly between source file lines in the editor?

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## [General Registry update timeout problem](https://discourse.julialang.org/t/general-registry-update-timeout-problem/138245)

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**Author:** [@Jake](https://discourse.julialang.org/u/Jake)\
**Replies:** 4\
**Last updated:** [July 16, 2026, 5:33pm UTC](https://discourse.julialang.org/t/general-registry-update-timeout-problem/138245 "2026-07-16T17:33:56Z")

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On my Windows Machine I tried updating both Revise and JET. There is an interesting error that I cannot figure out. This is on Julia 1.12.6. It does not occur on my RPI 4 with the latest OS and Julia 1.12.6. You can …

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## [Load time of MTK models](https://discourse.julialang.org/t/load-time-of-mtk-models/138068)

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**Author:** [@ufechner7](https://discourse.julialang.org/u/ufechner7)\
**Replies:** 4\
**Last updated:** [July 16, 2026, 5:09pm UTC](https://discourse.julialang.org/t/load-time-of-mtk-models/138068 "2026-07-16T17:09:02Z")

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I am not happy with the TTFX of our MTK models (see: RamAirKites.jl). We already cache our simplified model after building it and use a custom system image. But nevertheless, the time to load a model from our cache is st…

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## [Documenter.jl and collapsible Markdown?](https://discourse.julialang.org/t/documenter-jl-and-collapsible-markdown/50898)

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**Author:** [@uwechsler](https://discourse.julialang.org/u/uwechsler)\
**Replies:** 4\
**Last updated:** [July 16, 2026, 2:15pm UTC](https://discourse.julialang.org/t/documenter-jl-and-collapsible-markdown/50898 "2026-07-16T14:15:52Z")

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Is it possible to have collapsible markdown elements in a documentation page (or even the navigation bar) created with Documenter? Here is an example: https://gist.github.com/joyrexus/16041f2426450e73f5df9391f7f7ae5f

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## [Slicing sparse and dense matrices and allocations](https://discourse.julialang.org/t/slicing-sparse-and-dense-matrices-and-allocations/137984)

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**Author:** [@Boris](https://discourse.julialang.org/u/Boris)\
**Replies:** 15\
**Last updated:** [July 16, 2026, 7:39am UTC](https://discourse.julialang.org/t/slicing-sparse-and-dense-matrices-and-allocations/137984 "2026-07-16T07:39:21Z")

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Hi, I am optimizing some old non-performance critical code of mine and run into a lot of allocations when using slicing operations with sparse and dense matrices. I distilled it to this MWE # ---------------------------…

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## [\`SparseArray\` types](https://discourse.julialang.org/t/sparsearray-types/138210)

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**Author:** [@rokke](https://discourse.julialang.org/u/rokke)\
**Replies:** 5\
**Last updated:** [July 16, 2026, 6:56am UTC](https://discourse.julialang.org/t/sparsearray-types/138210 "2026-07-16T06:56:38Z")

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SparseMatrixCSC currently has a documented type definition of: SparseMatrixCSC{Tv,Ti\<:Integer} \<: AbstractSparseMatrixCSC{Tv,Ti} but, if you try to actually make one, you will find in practice that it only has exactly …

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## [Pluto Package Compile Issue - Mac Silicon](https://discourse.julialang.org/t/pluto-package-compile-issue-mac-silicon/138250)

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**Author:** [@Thatphukao](https://discourse.julialang.org/u/Thatphukao)\
**Replies:** 1\
**Last updated:** [July 16, 2026, 3:23am UTC](https://discourse.julialang.org/t/pluto-package-compile-issue-mac-silicon/138250 "2026-07-16T03:23:58Z")

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Hi everyone, I’m trying to add Pluto to use on my university Mac and it seems to run into this compile error: Failed to precompile Pluto \[c3e4b0f8-55cb-11ea-2926-15256bba5781\] to "/Users/useruseruser/.julia/compiled/v1.…

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## [CUDA.jl only supports NVIDIA drivers for CUDA 11.x or 12.x (yours is for CUDA 13.0.0)](https://discourse.julialang.org/t/cuda-jl-only-supports-nvidia-drivers-for-cuda-11-x-or-12-x-yours-is-for-cuda-13-0-0/137803)

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**Author:** [@Cyan](https://discourse.julialang.org/u/Cyan)\
**Replies:** 5\
**Last updated:** [July 16, 2026, 1:53am UTC](https://discourse.julialang.org/t/cuda-jl-only-supports-nvidia-drivers-for-cuda-11-x-or-12-x-yours-is-for-cuda-13-0-0/137803 "2026-07-16T01:53:37Z")

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Hi, all. I have upgraded the CUDA several times, but still got: julia\> using CUDA ┌ Error: This version of CUDA.jl only supports NVIDIA drivers for CUDA 11.x or 12.x (yours is for CUDA 13.0.0) └ @ CUDA ~/.julia/packag…

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## [Julia nightly is now filling 2.08 GB of disk space](https://discourse.julialang.org/t/julia-nightly-is-now-filling-2-08-gb-of-disk-space/137939)

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**Author:** [@joa-quim](https://discourse.julialang.org/u/joa-quim)\
**Replies:** 17\
**Last updated:** [July 15, 2026, 11:00pm UTC](https://discourse.julialang.org/t/julia-nightly-is-now-filling-2-08-gb-of-disk-space/137939 "2026-07-15T23:00:08Z")

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For comparison 1.13 takes 1.08 GB

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## [Makie xtickalign for Axis3](https://discourse.julialang.org/t/makie-xtickalign-for-axis3/138241)

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**Author:** [@lucasmyers97](https://discourse.julialang.org/u/lucasmyers97)\
**Replies:** 0\
**Last updated:** [July 15, 2026, 8:27pm UTC](https://discourse.julialang.org/t/makie-xtickalign-for-axis3/138241 "2026-07-15T20:27:07Z")

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The 2D Axis class has an attribute xtickalign which controls whether the x-axis ticks point inwards or outwards. However, the 3D Axis3 class has no such attribute. How can I achieve a similar effect with an Axis3 object? …

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## [\[ANN\] FastInterpolations.jl — Fast & zero-allocation ND interpolation](https://discourse.julialang.org/t/ann-fastinterpolations-jl-fast-zero-allocation-nd-interpolation/135911)

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**Author:** [@mgyoo86](https://discourse.julialang.org/u/mgyoo86)\
**Replies:** 35\
**Last updated:** [July 15, 2026, 8:08pm UTC](https://discourse.julialang.org/t/ann-fastinterpolations-jl-fast-zero-allocation-nd-interpolation/135911 "2026-07-15T20:08:54Z")

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Hello everyone, I’d like to share FastInterpolations.jl, a high-performance N-dimensional interpolation package I’ve been working on. I originally developed this for plasma physics simulations where interpolation sits …

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## [How to define MLIR types for Julia?](https://discourse.julialang.org/t/how-to-define-mlir-types-for-julia/134340)

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**Author:** [@obsidianjulua](https://discourse.julialang.org/u/obsidianjulua)\
**Replies:** 9\
**Last updated:** [July 15, 2026, 12:57pm UTC](https://discourse.julialang.org/t/how-to-define-mlir-types-for-julia/134340 "2026-07-15T12:57:12Z")

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Does anyone know if there are dialects made for julia and MLIR, not wrappers for MLIR dialects but compiled to MLIR that define julias types and ops for MLIR in C++ files. The problem: MLIR types need their storage class…

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## [Parallel Prime Sieving at High Magnitude with Julia (Project GC-60)](https://discourse.julialang.org/t/parallel-prime-sieving-at-high-magnitude-with-julia-project-gc-60/138200)

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**Author:** [@Claugo](https://discourse.julialang.org/u/Claugo)\
**Replies:** 4\
**Last updated:** [July 15, 2026, 8:38am UTC](https://discourse.julialang.org/t/parallel-prime-sieving-at-high-magnitude-with-julia-project-gc-60/138200 "2026-07-15T08:38:10Z")

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Hello everyone, I have shared with this forum two algorithms very dear to me: GC60\_M30x8 and GC60\_LRLN\_x8. These two algorithms have been combined, and the result highlights something fundamental: a different way of lo…

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## [Is there a nice way to specify sums or products with excluded indices?](https://discourse.julialang.org/t/is-there-a-nice-way-to-specify-sums-or-products-with-excluded-indices/138198)

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**Author:** [@ducksoverip](https://discourse.julialang.org/u/ducksoverip)\
**Replies:** 6\
**Last updated:** [July 15, 2026, 2:58am UTC](https://discourse.julialang.org/t/is-there-a-nice-way-to-specify-sums-or-products-with-excluded-indices/138198 "2026-07-15T02:58:04Z")

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Say I need to calculate something like y\_i = \\sum\_{i \\neq j} \\frac{1}{x\_i - x\_j}, Where the summation excludes identical indices. In Julia, the only way I know how to do this is with nested loops and an if statement, …

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## [\[ANN\] AnalyticLoadFlow.jl – Analytical Load Flow Solver based on HELM](https://discourse.julialang.org/t/ann-analyticloadflow-jl-analytical-load-flow-solver-based-on-helm/138179)

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**Author:** [@ac\_sch](https://discourse.julialang.org/u/ac_sch)\
**Replies:** 0\
**Last updated:** [July 14, 2026, 12:37pm UTC](https://discourse.julialang.org/t/ann-analyticloadflow-jl-analytical-load-flow-solver-based-on-helm/138179 "2026-07-14T12:37:34Z")

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Julia package implementing the Analytic Power Series Load Flow: Sparse Y-Bus interface PQ, PV and Slack buses Padé evaluation Optional Newton-Raphson polish Open-source reference implementation Project Status Analytic…

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## [How to handle errors and prevent script from crashing after](https://discourse.julialang.org/t/how-to-handle-errors-and-prevent-script-from-crashing-after/138168)

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**Author:** [@Mervyn\_Larrier](https://discourse.julialang.org/u/Mervyn_Larrier)\
**Replies:** 5\
**Last updated:** [July 14, 2026, 10:32am UTC](https://discourse.julialang.org/t/how-to-handle-errors-and-prevent-script-from-crashing-after/138168 "2026-07-14T10:32:09Z")

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Hi all. I’m writing a script to make a job a little bit easier, and it may be something I share with others so I’m trying to put a bit more care into making it. I’m not very familiar with error handling and I’m struggli…

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## [\[ANN\] AdaptEllipticalSliceSampler.jl: Adaptive Generalized Elliptical Slice Sampling](https://discourse.julialang.org/t/ann-adaptellipticalslicesampler-jl-adaptive-generalized-elliptical-slice-sampling/138167)

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**Author:** [@ndmarco](https://discourse.julialang.org/u/ndmarco)\
**Replies:** 0\
**Last updated:** [July 13, 2026, 10:55pm UTC](https://discourse.julialang.org/t/ann-adaptellipticalslicesampler-jl-adaptive-generalized-elliptical-slice-sampling/138167 "2026-07-13T22:55:24Z")

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I’d like to announce AdaptEllipticalSliceSampler.jl — a Julia implementation of an adaptive generalized elliptical slice sampler (AGESS) from a recent paper that we have been working on. Elliptical slice sampling (ESS) …

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## [ANN: Julia parser for JavaScript based on lezer grammar v1.0.0](https://discourse.julialang.org/t/ann-julia-parser-for-javascript-based-on-lezer-grammar-v1-0-0/137760)

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**Author:** [@fonsp](https://discourse.julialang.org/u/fonsp)\
**Replies:** 3\
**Last updated:** [July 13, 2026, 9:45pm UTC](https://discourse.julialang.org/t/ann-julia-parser-for-javascript-based-on-lezer-grammar-v1-0-0/137760 "2026-07-13T21:45:32Z")

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Hi! :waving\_hand: The Pluto team is proud to announce @plutojl/lezer-julia version 1.0! This is a parser for Julia syntax to be used in JavaScript: you can use it in web browsers, NodeJS, Bun or Deno. Our parser is of …

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## [Controlling Blender from Julia using bpy and PythonCall.jl](https://discourse.julialang.org/t/controlling-blender-from-julia-using-bpy-and-pythoncall-jl/137707)

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**Author:** [@ChetanVardhan](https://discourse.julialang.org/u/ChetanVardhan)\
**Replies:** 3\
**Last updated:** [July 13, 2026, 7:04pm UTC](https://discourse.julialang.org/t/controlling-blender-from-julia-using-bpy-and-pythoncall-jl/137707 "2026-07-13T19:04:12Z")

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Recently I have been trying to use Blender from Julia. I have got a pretty good workflow using the rpyc package in Python. With this, we can import bpy in Julia using PythonCall.jl This is the Python script to be run i…

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## [Running Julia inside Blender through VSCode (using PythonCall/JuliaCall)](https://discourse.julialang.org/t/running-julia-inside-blender-through-vscode-using-pythoncall-juliacall/96838)

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**Author:** [@cdsousa](https://discourse.julialang.org/u/cdsousa)\
**Replies:** 9\
**Last updated:** [July 13, 2026, 6:56pm UTC](https://discourse.julialang.org/t/running-julia-inside-blender-through-vscode-using-pythoncall-juliacall/96838 "2026-07-13T18:56:26Z")

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Hi all, I’ve been using a workflow that I came up with that consists of using Blender through its GUI and programmatically with Julia at the same time. I usually develop in Julia using VSCode and its “execute line” and …

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## [\[ANN\] UnitfulGauss.jl, Gaussian EM units with proper gaussian physical dimensions](https://discourse.julialang.org/t/ann-unitfulgauss-jl-gaussian-em-units-with-proper-gaussian-physical-dimensions/138162)

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**Author:** [@Gregstrq](https://discourse.julialang.org/u/Gregstrq)\
**Replies:** 0\
**Last updated:** [July 13, 2026, 5:43pm UTC](https://discourse.julialang.org/t/ann-unitfulgauss-jl-gaussian-em-units-with-proper-gaussian-physical-dimensions/138162 "2026-07-13T17:43:49Z")

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I would like to announce UnitfulGauss.jl — a small extension package for Unitful.jl that defines Gaussian electromagnetic units with the proper Gaussian physical dimensions. Although Unitful.jl defines the Gaussian unit…

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## [How can I significantly speed up conditional Universal Differential Equation training?](https://discourse.julialang.org/t/how-can-i-significantly-speed-up-conditional-universal-differential-equation-training/138126)

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**Author:** [@NCCP](https://discourse.julialang.org/u/NCCP)\
**Replies:** 2\
**Last updated:** [July 13, 2026, 3:35pm UTC](https://discourse.julialang.org/t/how-can-i-significantly-speed-up-conditional-universal-differential-equation-training/138126 "2026-07-13T15:35:27Z")

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Hello, I am training a conditional Universal Differential Equation in Julia. This is a regular UDE with an additional trainable parameter as input that is specific for each particle (individual) in the dataset. The mod…

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## [\[ANN\] julia-mcp — persistent Julia sessions for AI assistants](https://discourse.julialang.org/t/ann-julia-mcp-persistent-julia-sessions-for-ai-assistants/135386)

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**Author:** [@aplavin](https://discourse.julialang.org/u/aplavin)\
**Replies:** 46\
**Last updated:** [July 13, 2026, 3:20pm UTC](https://discourse.julialang.org/t/ann-julia-mcp-persistent-julia-sessions-for-ai-assistants/135386 "2026-07-13T15:20:43Z")

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If you use AI coding assistants (Claude Code, Claude Desktop, VS Code Copilot), you’ve probably noticed they pay Julia’s startup and compilation costs on every single code execution and test run. That adds up fast during…

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## [Request for: examples of unhelpful selection of \`Closest candidates\` on a \`MethodError\`](https://discourse.julialang.org/t/request-for-examples-of-unhelpful-selection-of-closest-candidates-on-a-methoderror/138160)

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**Author:** [@adienes](https://discourse.julialang.org/u/adienes)\
**Replies:** 1\
**Last updated:** [July 13, 2026, 1:51pm UTC](https://discourse.julialang.org/t/request-for-examples-of-unhelpful-selection-of-closest-candidates-on-a-methoderror/138160 "2026-07-13T13:51:26Z")

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I’m experimenting with the shortlisting algorithm used to select the list of suggested methods when a MethodError is hit. As I’m sure many of us have experienced, sometimes the suggested methods are in fact not at all re…

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## [Julia as a backend language in R, Python, and browsers (WASM)](https://discourse.julialang.org/t/julia-as-a-backend-language-in-r-python-and-browsers-wasm/138155)

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**Author:** [@jbytecode](https://discourse.julialang.org/u/jbytecode)\
**Replies:** 2\
**Last updated:** [July 13, 2026, 10:56am UTC](https://discourse.julialang.org/t/julia-as-a-backend-language-in-r-python-and-browsers-wasm/138155 "2026-07-13T10:56:29Z")

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Hello everyone, I hope I am not duplicating another open thread with these questions. (I have older posts about Juliac and lowering Julia code but I think this post has some new extensions after 1-2 years). I am writin…

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## [Working on the same project from WSL and Windows](https://discourse.julialang.org/t/working-on-the-same-project-from-wsl-and-windows/138154)

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**Author:** [@hros](https://discourse.julialang.org/u/hros)\
**Replies:** 2\
**Last updated:** [July 13, 2026, 10:28am UTC](https://discourse.julialang.org/t/working-on-the-same-project-from-wsl-and-windows/138154 "2026-07-13T10:28:10Z")

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I am developing a project which includes several packages with dependencies, working in Windows 11 (Powershell) I recently starting testing things from WSL, working on the same, mounting directory Now, the project work…

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## [CI failures in codecov processing](https://discourse.julialang.org/t/ci-failures-in-codecov-processing/138030)

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**Author:** [@TimG](https://discourse.julialang.org/u/TimG)\
**Replies:** 2\
**Last updated:** [July 13, 2026, 3:26am UTC](https://discourse.julialang.org/t/ci-failures-in-codecov-processing/138030 "2026-07-13T03:26:07Z")

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Recently, my CI jobs have been intermittently failing. My tests all pass but the failure arises from the codecov part of CI. There is no consistent pattern regarding which OS but (I think) it is always either nightly or …

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## [What can mathematics graduate student do to help out?](https://discourse.julialang.org/t/what-can-mathematics-graduate-student-do-to-help-out/138118)

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**Author:** [@Alex-Scofield](https://discourse.julialang.org/u/Alex-Scofield)\
**Replies:** 4\
**Last updated:** [July 12, 2026, 8:49pm UTC](https://discourse.julialang.org/t/what-can-mathematics-graduate-student-do-to-help-out/138118 "2026-07-12T20:49:43Z")

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I am a student enrolled in a master’s degree in analysis, modelling and simulations. I have already followed a couple of introduction courses on these subjects, and completed a degree in pure mathematics and computer sci…

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## [Sum types as sealed abstract types](https://discourse.julialang.org/t/sum-types-as-sealed-abstract-types/138065)

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**Author:** [@CameronBieganek](https://discourse.julialang.org/u/CameronBieganek)\
**Replies:** 9\
**Last updated:** [July 12, 2026, 4:57pm UTC](https://discourse.julialang.org/t/sum-types-as-sealed-abstract-types/138065 "2026-07-12T16:57:04Z")

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In the various discussions about sum types in Julia, I don’t recall seeing any discussion of how sum types would interact with the existing type system. So, here’s one idea that comes to mind: Perhaps a sum type could b…

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## [Mutable Computational Graphs in Pure Julia: Computing Bell Numbers with Automatic Memoization](https://discourse.julialang.org/t/mutable-computational-graphs-in-pure-julia-computing-bell-numbers-with-automatic-memoization/138108)

<div class="topic-metadata">

**Author:** [@Khemais\_Abdallah](https://discourse.julialang.org/u/Khemais_Abdallah)\
**Replies:** 0\
**Last updated:** [July 12, 2026, 1:12am UTC](https://discourse.julialang.org/t/mutable-computational-graphs-in-pure-julia-computing-bell-numbers-with-automatic-memoization/138108 "2026-07-12T01:12:42Z")

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Mutable Computational Graphs in Pure Julia: Computing Bell Numbers with Automatic Memoization I’ve been building NeuroDSL, a Julia package for declarative, persistent computation graphs — you write a recurrence as if it…

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