# Latest

**URL:** https://discourse.julialang.org/latest.md?page=20

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

**Page:** 21

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## [Optimization.jl - Define the objective function and its gradient in the same function](https://discourse.julialang.org/t/optimization-jl-define-the-objective-function-and-its-gradient-in-the-same-function/137968)

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**Author:** [@Maucejo](https://discourse.julialang.org/u/Maucejo)\
**Replies:** 3\
**Last updated:** [July 7, 2026, 6:30am UTC](https://discourse.julialang.org/t/optimization-jl-define-the-objective-function-and-its-gradient-in-the-same-function/137968 "2026-07-07T06:30:44Z")

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Hi all, I am working on an optimization problem involving Complex Gaussian Processes and Kalman Filter. To optimize the hyperparameters of the kernels, I use Optimization.jl. Because I have calculated the analytical grad…

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## [\[call for abstracts\] AGU 2026 Session SY029. Open Source Tools for the Earth & Space Sciences: Breaking Discipline Silos to Accelerate Discovery](https://discourse.julialang.org/t/call-for-abstracts-agu-2026-session-sy029-open-source-tools-for-the-earth-space-sciences-breaking-discipline-silos-to-accelerate-discovery/137977)

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**Author:** [@Mikejmnez](https://discourse.julialang.org/u/Mikejmnez)\
**Replies:** 0\
**Last updated:** [July 6, 2026, 11:09pm UTC](https://discourse.julialang.org/t/call-for-abstracts-agu-2026-session-sy029-open-source-tools-for-the-earth-space-sciences-breaking-discipline-silos-to-accelerate-discovery/137977 "2026-07-06T23:09:32Z")

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This is a call for abstracts to the AGU 2026 Fall Session on cross-disciplinary open-source software — bringing together developers and users from across the full AGU spectrum – from Earth’s deep interior to its surface,…

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## [New Working Local Coding Agent for Julia](https://discourse.julialang.org/t/new-working-local-coding-agent-for-julia/137962)

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**Author:** [@compleat](https://discourse.julialang.org/u/compleat)\
**Replies:** 5\
**Last updated:** [July 6, 2026, 9:16pm UTC](https://discourse.julialang.org/t/new-working-local-coding-agent-for-julia/137962 "2026-07-06T21:16:33Z")

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I have tested dozens of combinations of agents, quantisations, ‘speedup tricks’, etc. over past several months on Julia coding (specifically for mathematical programming and statistical learning) with dismal results, unt…

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## [Mooncake.jl with variable sized input](https://discourse.julialang.org/t/mooncake-jl-with-variable-sized-input/137943)

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**Author:** [@Tomas\_Pevny](https://discourse.julialang.org/u/Tomas_Pevny)\
**Replies:** 5\
**Last updated:** [July 6, 2026, 1:58pm UTC](https://discourse.julialang.org/t/mooncake-jl-with-variable-sized-input/137943 "2026-07-06T13:58:40Z")

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This post is intended as a log for people interested in Mooncake. Similarly, I am interested in feedback. Background: I am interested in learning from structured data, under which you can think about JSON documents. I a…

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## [Blog post on GPU ecosystem](https://discourse.julialang.org/t/blog-post-on-gpu-ecosystem/137971)

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**Author:** [@gdalle](https://discourse.julialang.org/u/gdalle)\
**Replies:** 0\
**Last updated:** [July 6, 2026, 1:28pm UTC](https://discourse.julialang.org/t/blog-post-on-gpu-ecosystem/137971 "2026-07-06T13:28:50Z")

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Hi all! Following discussions on Slack, I got a blog post started to list the major packages in Julia’s GPU ecosystem and show how they interact. It’s getting close to completion and I would appreciate reviews / suggest…

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## [Decomposing a scenario-feasibility MILP with binary recourse in JuMP](https://discourse.julialang.org/t/decomposing-a-scenario-feasibility-milp-with-binary-recourse-in-jump/137898)

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**Author:** [@decomp-lab](https://discourse.julialang.org/u/decomp-lab)\
**Replies:** 10\
**Last updated:** [July 5, 2026, 10:52pm UTC](https://discourse.julialang.org/t/decomposing-a-scenario-feasibility-milp-with-binary-recourse-in-jump/137898 "2026-07-05T22:52:47Z")

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I have a two-stage multi-scenario MILP in JuMP with an inventory/order-flow structure. The first-stage variables are shared across all scenarios. Each scenario then has its own continuous flow variables and binary timin…

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## [\[ANN\] Neptune.jl v0.15.0 — non-reactive Julia notebooks (Pluto fork)](https://discourse.julialang.org/t/ann-neptune-jl-v0-15-0-non-reactive-julia-notebooks-pluto-fork/136949)

<div class="topic-metadata">

**Author:** [@compleat](https://discourse.julialang.org/u/compleat)\
**Replies:** 12\
**Last updated:** [July 5, 2026, 8:44pm UTC](https://discourse.julialang.org/t/ann-neptune-jl-v0-15-0-non-reactive-julia-notebooks-pluto-fork/136949 "2026-07-05T20:44:35Z")

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Neptune.jl is a non-reactive fork of Pluto.jl. It looks and works exactly like Pluto, with one key difference: cells do not automatically re-run when other cells change. Editing a cell runs only that cell Notebooks d…

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## [Small step size in LBFGS for neural network with complex values](https://discourse.julialang.org/t/small-step-size-in-lbfgs-for-neural-network-with-complex-values/137946)

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**Author:** [@Knud\_Sorensen](https://discourse.julialang.org/u/Knud_Sorensen)\
**Replies:** 3\
**Last updated:** [July 5, 2026, 6:46pm UTC](https://discourse.julialang.org/t/small-step-size-in-lbfgs-for-neural-network-with-complex-values/137946 "2026-07-05T18:46:42Z")

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I wrote my own LBFGS code for a neural network with complex values. It worked until the step size became to small to change the network because of floating point position. Has anyone had similar problems and know how t…

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## [MWE package?](https://discourse.julialang.org/t/mwe-package/126792)

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**Author:** [@Ken\_Williams](https://discourse.julialang.org/u/Ken_Williams)\
**Replies:** 10\
**Last updated:** [July 5, 2026, 12:48pm UTC](https://discourse.julialang.org/t/mwe-package/126792 "2026-07-05T12:48:12Z")

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I see this previous thread on Discourse: Suggestion for a new package: MinimalWorkingExamples.jl; but it looks like maybe this never got off the ground? Coming from an R background, it’s extremely helpful (both as an as…

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## [\[ANN\] Latte.jl: Probabilistic programming for latent Gaussian models](https://discourse.julialang.org/t/ann-latte-jl-probabilistic-programming-for-latent-gaussian-models/137879)

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**Author:** [@timweiland](https://discourse.julialang.org/u/timweiland)\
**Replies:** 18\
**Last updated:** [July 5, 2026, 12:12pm UTC](https://discourse.julialang.org/t/ann-latte-jl-probabilistic-programming-for-latent-gaussian-models/137879 "2026-07-05T12:12:14Z")

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Hi all! Last week I published Latte.jl, a probabilistic programming framework for latent Gaussian models. What’s a latent Gaussian model? Many interesting problems in Bayesian inference can be approached via latent Gaus…

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## [Juliac with TypedTables](https://discourse.julialang.org/t/juliac-with-typedtables/137926)

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**Author:** [@Thomas008](https://discourse.julialang.org/u/Thomas008)\
**Replies:** 7\
**Last updated:** [July 5, 2026, 1:13am UTC](https://discourse.julialang.org/t/juliac-with-typedtables/137926 "2026-07-05T01:13:42Z")

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I want to compile functions processing tables with help of juliac. I use TypedTables. Unfortunately the code cannot be compiled as soon the tables have more than 32 columns. This is probably caused by the type-instabilit…

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## [How to use ForwardDiff.jl with inv and matrix exponential?](https://discourse.julialang.org/t/how-to-use-forwarddiff-jl-with-inv-and-matrix-exponential/137880)

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**Author:** [@Xu\_Shan](https://discourse.julialang.org/u/Xu_Shan)\
**Replies:** 15\
**Last updated:** [July 4, 2026, 8:31pm UTC](https://discourse.julialang.org/t/how-to-use-forwarddiff-jl-with-inv-and-matrix-exponential/137880 "2026-07-04T20:31:45Z")

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I have a question listed here: Why does ForwardDiff.jl give me all-zero Jacobian matrix?, and I found it might be due to part of the function which contains inv and exp (matrix exponential…) from ExponentialUtilities. I …

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## [Is it possible to update NearestNeighbors.jl trees after construction?](https://discourse.julialang.org/t/is-it-possible-to-update-nearestneighbors-jl-trees-after-construction/137892)

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**Author:** [@juliohm](https://discourse.julialang.org/u/juliohm)\
**Replies:** 3\
**Last updated:** [July 4, 2026, 4:38pm UTC](https://discourse.julialang.org/t/is-it-possible-to-update-nearestneighbors-jl-trees-after-construction/137892 "2026-07-04T16:38:14Z")

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Is it possible to update the data in a tree after construction? Say we need to add more points to the tree, how to push! or append!? I’ve read the documentation and there is no example for that. By reading the source cod…

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## [Documentation of cholesky() and allocations](https://discourse.julialang.org/t/documentation-of-cholesky-and-allocations/137927)

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**Author:** [@Boris](https://discourse.julialang.org/u/Boris)\
**Replies:** 4\
**Last updated:** [July 4, 2026, 7:05am UTC](https://discourse.julialang.org/t/documentation-of-cholesky-and-allocations/137927 "2026-07-04T07:05:44Z")

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Hi, Today I found out that after using C=cholesky(A), C.L allocates, while C.U does not. After changing a literally one line of my program from C.L to C.U, (which was using suspiciously high ram) I got a very, very sig…

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## [VSCodeDebugger is precompiled in every debug or run session in VS Code](https://discourse.julialang.org/t/vscodedebugger-is-precompiled-in-every-debug-or-run-session-in-vs-code/137883)

<div class="topic-metadata">

**Author:** [@Yue-Zhengyuan](https://discourse.julialang.org/u/Yue-Zhengyuan)\
**Replies:** 1\
**Last updated:** [July 4, 2026, 3:49am UTC](https://discourse.julialang.org/t/vscodedebugger-is-precompiled-in-every-debug-or-run-session-in-vs-code/137883 "2026-07-04T03:49:30Z")

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When running Julia files in a new process in VS Code, I find that the VSCodeDebugger is being compiled every time I start the process. Precompiling packages ╺━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━ 0/1 ◐ VSCodeDebugg…

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## [\[ANN\] Armington.jl Constant Elasticity of Substitution aggregators in Julia](https://discourse.julialang.org/t/ann-armington-jl-constant-elasticity-of-substitution-aggregators-in-julia/137824)

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**Author:** [@molivov](https://discourse.julialang.org/u/molivov)\
**Replies:** 11\
**Last updated:** [July 3, 2026, 11:52pm UTC](https://discourse.julialang.org/t/ann-armington-jl-constant-elasticity-of-substitution-aggregators-in-julia/137824 "2026-07-03T23:52:35Z")

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Hi all, Announcing Armington.jl, a small package for building and evaluating arbitrarily-nested CES aggregators, trees where each internal node combines its children with a constant elasticity of substitution. See Const…

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## [\[ANN\] BetterFileWatching 1.0: recursive file watching with easy API](https://discourse.julialang.org/t/ann-betterfilewatching-1-0-recursive-file-watching-with-easy-api/137928)

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**Author:** [@fonsp](https://discourse.julialang.org/u/fonsp)\
**Replies:** 0\
**Last updated:** [July 3, 2026, 7:58pm UTC](https://discourse.julialang.org/t/ann-betterfilewatching-1-0-recursive-file-watching-with-easy-api/137928 "2026-07-03T19:58:27Z")

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Hi! :waving\_hand: I would like to announce BetterFileWatching.jl version 1.0! watch\_folder(f::Function, dir=".") It is a file watching library (get notified when files change on disk) that can watch files and folders o…

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## [PSA: All CI services temporarily halted](https://discourse.julialang.org/t/psa-all-ci-services-temporarily-halted/137559)

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**Author:** [@Keno](https://discourse.julialang.org/u/Keno)\
**Replies:** 8\
**Last updated:** [July 3, 2026, 6:25pm UTC](https://discourse.julialang.org/t/psa-all-ci-services-temporarily-halted/137559 "2026-07-03T18:25:30Z")

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About an hour ago, we noticed a compromise of the Julia CI infrastructure and were shortly thereafter contacted by a security researcher with further details. We have temporarily halted all CI services on JuliaLang and J…

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## [\[ANN\] StructEditor.jl - Build Julia Applications with your structs automatically!](https://discourse.julialang.org/t/ann-structeditor-jl-build-julia-applications-with-your-structs-automatically/137925)

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**Author:** [@Brad\_Carman](https://discourse.julialang.org/u/Brad_Carman)\
**Replies:** 0\
**Last updated:** [July 3, 2026, 4:09pm UTC](https://discourse.julialang.org/t/ann-structeditor-jl-build-julia-applications-with-your-structs-automatically/137925 "2026-07-03T16:09:45Z")

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Hi all, Announcing StructEditor.jl, enabling you to build applications with your Julia struct automatically! Thanks to the amazing power of Bonito.jl, it’s possible to build applications that work either in the Julia V…

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## [Internship opportunity: energy systems modelling with Julia at OECD-NEA, Paris area](https://discourse.julialang.org/t/internship-opportunity-energy-systems-modelling-with-julia-at-oecd-nea-paris-area/137924)

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**Author:** [@Guillaume](https://discourse.julialang.org/u/Guillaume)\
**Replies:** 0\
**Last updated:** [July 3, 2026, 2:30pm UTC](https://discourse.julialang.org/t/internship-opportunity-energy-systems-modelling-with-julia-at-oecd-nea-paris-area/137924 "2026-07-03T14:30:15Z")

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Internship opportunity: energy systems modelling with Julia at OECD-NEA, Paris area The OECD Nuclear Energy Agency is looking for an intern to work in the Division of Nuclear Technology and Economics on system costs mod…

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## [Privately hosting BinaryBuilder products with authentication](https://discourse.julialang.org/t/privately-hosting-binarybuilder-products-with-authentication/88409)

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**Author:** [@danielmatz](https://discourse.julialang.org/u/danielmatz)\
**Replies:** 23\
**Last updated:** [July 3, 2026, 1:19pm UTC](https://discourse.julialang.org/t/privately-hosting-binarybuilder-products-with-authentication/88409 "2026-07-03T13:19:31Z")

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I’m trying to host some binaries I created with BinaryBuilder on my work’s internal web server. Accessing the server requires authentication. I can use curl at the command line to download an artifact. By providing my u…

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## [How to use Multibody.jl?](https://discourse.julialang.org/t/how-to-use-multibody-jl/134354)

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**Author:** [@SietseAchterop](https://discourse.julialang.org/u/SietseAchterop)\
**Replies:** 8\
**Last updated:** [July 3, 2026, 12:16pm UTC](https://discourse.julialang.org/t/how-to-use-multibody-jl/134354 "2026-07-03T12:16:15Z")

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Hello all, I am new to Julia, now on version 1.12.2 on Linux/Debian version 13.2. Played around with it and with Dyad. Now trying to use the Pendulum example from Multibody.jl I can do add and then using ModelingTool…

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## [Run WASM files in julia](https://discourse.julialang.org/t/run-wasm-files-in-julia/137918)

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**Author:** [@longemen3000](https://discourse.julialang.org/u/longemen3000)\
**Replies:** 0\
**Last updated:** [July 3, 2026, 6:52am UTC](https://discourse.julialang.org/t/run-wasm-files-in-julia/137918 "2026-07-03T06:52:34Z")

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Hello, I want to know if there is any Julia packages that are capable of taking a .wasm file and returning the functions stored in that file? I know that WasmTime.jl exists, but seems somewhat abandoned (it still uses a…

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## [\[ANN\] (Experimental) WasmTarget.jl & Therapy.jl: Julia-to-WebAssembly compiler, with a full-stack signals framework built on it](https://discourse.julialang.org/t/ann-experimental-wasmtarget-jl-therapy-jl-julia-to-webassembly-compiler-with-a-full-stack-signals-framework-built-on-it/136901)

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**Author:** [@Dale\_James\_Black](https://discourse.julialang.org/u/Dale_James_Black)\
**Replies:** 29\
**Last updated:** [July 3, 2026, 5:55am UTC](https://discourse.julialang.org/t/ann-experimental-wasmtarget-jl-therapy-jl-julia-to-webassembly-compiler-with-a-full-stack-signals-framework-built-on-it/136901 "2026-07-03T05:55:29Z")

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\[ANN\] (Experimental) WasmTarget.jl & Therapy.jl: Julia-to-WebAssembly compiler, with a full-stack signals framework built on it I’m “announcing” two new packages, both registered in General. They might be usable, might n…

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## [Axis padding](https://discourse.julialang.org/t/axis-padding/137904)

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**Author:** [@grero](https://discourse.julialang.org/u/grero)\
**Replies:** 2\
**Last updated:** [July 3, 2026, 12:37am UTC](https://discourse.julialang.org/t/axis-padding/137904 "2026-07-03T00:37:36Z")

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Is there a way to pad an axis in Makie without modifying the data limits? I’m trying to use brackets to highlight a range in a heat map, like in the following little example. using Makie function bracket\_test() fig…

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## [Invertible Neural Networks](https://discourse.julialang.org/t/invertible-neural-networks/137909)

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**Author:** [@langestefan](https://discourse.julialang.org/u/langestefan)\
**Replies:** 0\
**Last updated:** [July 2, 2026, 2:40pm UTC](https://discourse.julialang.org/t/invertible-neural-networks/137909 "2026-07-02T14:40:20Z")

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I was looking at doing some modelling work using invertible neural-networks in Julia with Lux.jl. There aren’t many options, but I found GitHub - slimgroup/InvertibleNetworks.jl: A Julia framework for invertible neural …

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## [\[ANN\] HaloArrays.jl — halo-exchange arrays for serial, threaded, and MPI](https://discourse.julialang.org/t/ann-haloarrays-jl-halo-exchange-arrays-for-serial-threaded-and-mpi/137906)

<div class="topic-metadata">

**Author:** [@fafafrens](https://discourse.julialang.org/u/fafafrens)\
**Replies:** 0\
**Last updated:** [July 2, 2026, 8:09am UTC](https://discourse.julialang.org/t/ann-haloarrays-jl-halo-exchange-arrays-for-serial-threaded-and-mpi/137906 "2026-07-02T08:09:22Z")

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HaloArrays.jl automates the tedious, error-prone parts of stencil, finite-volume, and lattice codes: ghost-cell (halo) exchange and boundary handling. Write your kernel once and run it serial, multithreaded, or distribut…

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## [Reading compressed csv gzopen cuts file short](https://discourse.julialang.org/t/reading-compressed-csv-gzopen-cuts-file-short/137885)

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**Author:** [@xor0110](https://discourse.julialang.org/u/xor0110)\
**Replies:** 4\
**Last updated:** [July 1, 2026, 5:31pm UTC](https://discourse.julialang.org/t/reading-compressed-csv-gzopen-cuts-file-short/137885 "2026-07-01T17:31:48Z")

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I seem to have stumbled into some kind of bug. I am working with large compressed CSV files. I’m loading the data with: mydata = gzopen(x-\>CSV.read(x, DataFrame), mydatafile) Then I just get this warning: ┌ Warning: t…

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## [\[ANN\] AdditionalDistributions.jl v0.2.1 — Multivariate Gaussian and Student-t CDFs, benchmarks, and ecosystem examples](https://discourse.julialang.org/t/ann-additionaldistributions-jl-v0-2-1-multivariate-gaussian-and-student-t-cdfs-benchmarks-and-ecosystem-examples/137895)

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**Author:** [@Santymax98](https://discourse.julialang.org/u/Santymax98)\
**Replies:** 0\
**Last updated:** [July 1, 2026, 3:57pm UTC](https://discourse.julialang.org/t/ann-additionaldistributions-jl-v0-2-1-multivariate-gaussian-and-student-t-cdfs-benchmarks-and-ecosystem-examples/137895 "2026-07-01T15:57:31Z")

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Hi everyone, I’m happy to announce AdditionalDistributions.jl v0.2.1. AdditionalDistributions.jl extends the Distributions.jl ecosystem with additional univariate and multivariate probability distributions. This annou…

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## [Automatic Github script bumps for multiple repos](https://discourse.julialang.org/t/automatic-github-script-bumps-for-multiple-repos/137894)

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**Author:** [@Tamas\_Papp](https://discourse.julialang.org/u/Tamas_Papp)\
**Replies:** 0\
**Last updated:** [July 1, 2026, 3:41pm UTC](https://discourse.julialang.org/t/automatic-github-script-bumps-for-multiple-repos/137894 "2026-07-01T15:41:53Z")

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When a new version of some commonly used script arrives, dependabot makes PRs for every single repo I maintain. Which is nice of it, sure, but I am wondering if someone figured out a way to automate dealing with these, …

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