JuliaDiff/Diffractor.jl

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Next-generation AD

Stars: 453
Forks: 33
Open beginner issues: 0
Indexed issues: 40

Dominant language: Julia
License: MIT
Last GitHub push: Aug 12, 2025
Latest indexed: Sep 18, 2026
Contributing guide: No contributing guide
Code of conduct: No code of conduct
Beginner labels: good first issue
PR merge metrics: No merged PRs in 30d

Beginner friendly Everything

Open All

40 open issues indexed

Unicode poorly rendered in readme Open

Difficulty 2/5 1-3 hours Newbie friendliness 25/100

JuliaDiff/Diffractor.jl#302 · 2 comments · Opened Apr 1, 2025
Wrong derivative of exp(cos(x)) Open

Difficulty 3/5 1-2 days Newbie friendliness 52/100

JuliaDiff/Diffractor.jl#294 · Opened Jul 29, 2024
Incorrect Jacobian calculation Open

bug

Difficulty 4/5 3-5 days Newbie friendliness 35/100

JuliaDiff/Diffractor.jl#293 · Opened Jun 9, 2024
New release broke DifferentiationInterface Open

bug

Difficulty 4/5 3-5 days Newbie friendliness 35/100

JuliaDiff/Diffractor.jl#290 · 8 comments · Opened Apr 9, 2024
Error trying to differentiate `eachindex` Open

Difficulty 3/5 1-2 days Newbie friendliness 35/100

JuliaDiff/Diffractor.jl#280 · 1 comment · Opened Mar 11, 2024
Not using "strong zeros" for deriatives of constant values Open

Difficulty 4/5 3-5 days Newbie friendliness 45/100

JuliaDiff/Diffractor.jl#278 · 1 comment · 1 reaction · Opened Mar 11, 2024
frule_via_ad tries to call NoTangent Open

bug

Difficulty 3/5 1-2 days Newbie friendliness 38/100

JuliaDiff/Diffractor.jl#277 · 1 comment · Opened Mar 6, 2024
frule invalidation broken Open

bug forward-mode

Difficulty 3/5 1-2 days Newbie friendliness 38/100

JuliaDiff/Diffractor.jl#269 · 4 comments · Opened Feb 13, 2024
Equivilent of Zygote.refresh: force recompiling of everthing Open

Difficulty 5/5 Over a week Newbie friendliness 30/100

JuliaDiff/Diffractor.jl#253 · Opened Jan 29, 2024
support for frules with keyword arguments Open

Difficulty 4/5 3-5 days Newbie friendliness 25/100

JuliaDiff/Diffractor.jl#244 · 1 comment · Opened Dec 7, 2023
Failures on nightly (v1.11) Open

Difficulty 5/5 Over a week Newbie friendliness 20/100

JuliaDiff/Diffractor.jl#243 · Opened Nov 23, 2023
Diffractor as backend for Turing? Open

Difficulty 5/5 Over a week Newbie friendliness 20/100

JuliaDiff/Diffractor.jl#240 · 1 comment · Opened Nov 12, 2023
Support indexing ExplictTangentBundle with TaylorIndex at any position Open

good first issue

Difficulty 5/5 Over a week Newbie friendliness 25/100

JuliaDiff/Diffractor.jl#227 · Opened Oct 12, 2023
Failing to compute Hessian via Jacobian of gradient Open

Difficulty 4/5 3-5 days Newbie friendliness 35/100

JuliaDiff/Diffractor.jl#211 · Opened Aug 26, 2023
Error when computing jacobian for broadcasted function Open

bug

Difficulty 3/5 1-2 days Newbie friendliness 35/100

JuliaDiff/Diffractor.jl#209 · 4 comments · Opened Aug 22, 2023
Derivatives do not work with non-float types? Open

bug

Difficulty 3/5 1-2 days Newbie friendliness 38/100

JuliaDiff/Diffractor.jl#206 · 1 comment · Opened Aug 21, 2023
no method matching setindex!(::ChainRulesCore.NoTangent, ::Float64, ::Int64) Open

bug forward-mode mutation

Difficulty 4/5 3-5 days Newbie friendliness 35/100

JuliaDiff/Diffractor.jl#200 · 2 comments · Opened Jul 27, 2023
TypeError: in new, expected DataType, got Type{ZeroBundle{1, B}} Open

bug forward-mode

Difficulty 4/5 3-5 days Newbie friendliness 38/100

JuliaDiff/Diffractor.jl#199 · Opened Jul 27, 2023
Mark nightly jobs as allowed to fail Open

blocked

JuliaDiff/Diffractor.jl#194 · 3 comments · 1 assignee · Opened Jul 26, 2023
Get all the standard AbstractDifferentiation tests working Open

Difficulty 4/5 3-5 days Newbie friendliness 35/100

JuliaDiff/Diffractor.jl#192 · Opened Jul 25, 2023
forward_diff_no_inf can't handle throw_undef_if_not Open

bug

Difficulty 3/5 1-2 days Newbie friendliness 45/100

JuliaDiff/Diffractor.jl#161 · Opened Jun 14, 2023
3 statement switches Open

refactoring

Difficulty 5/5 Over a week Newbie friendliness 25/100

JuliaDiff/Diffractor.jl#157 · Opened May 25, 2023
Teach Forward Mode about Effects and Zeros Open

enhancement forward-mode

Difficulty 5/5 Over a week Newbie friendliness 20/100

JuliaDiff/Diffractor.jl#156 · 3 comments · 1 reaction · Opened May 24, 2023
Reenable broken Reverse Mode tests Open

Difficulty 3/5 1-2 days Newbie friendliness 45/100

JuliaDiff/Diffractor.jl#149 · Opened May 17, 2023
Even very basic broadcasting breaks inferability Open

Difficulty 3/5 1-2 days Newbie friendliness 35/100

JuliaDiff/Diffractor.jl#147 · Opened May 12, 2023
Very poor performance on simple taylor function Open

Difficulty 4/5 3-5 days Newbie friendliness 35/100

JuliaDiff/Diffractor.jl#113 · 1 comment · Opened Feb 27, 2023
Gradients with respect to dictionaries don't work Open

Difficulty 4/5 3-5 days Newbie friendliness 35/100

JuliaDiff/Diffractor.jl#90 · 6 comments · Opened Sep 1, 2022
`x.re` gives a Tangent not a Complex Open

Difficulty 4/5 3-5 days Newbie friendliness 30/100

JuliaDiff/Diffractor.jl#71 · 1 comment · Opened Jan 12, 2022
Forward mode with complex numbers Open

forward-mode

Difficulty 4/5 3-5 days Newbie friendliness 35/100

JuliaDiff/Diffractor.jl#70 · Opened Jan 12, 2022
Accumulation Open

Difficulty 5/5 Over a week Newbie friendliness 28/100

JuliaDiff/Diffractor.jl#69 · 2 reactions · Opened Jan 11, 2022
Failure with ComposedFunction `∘` Open

Difficulty 4/5 3-5 days Newbie friendliness 35/100

JuliaDiff/Diffractor.jl#67 · 1 comment · Opened Jan 9, 2022
Cutting a release Open

Difficulty 5/5 Over a week Newbie friendliness 15/100

JuliaDiff/Diffractor.jl#66 · 7 comments · Opened Jan 8, 2022
Incorporate nice explanation from HN somewhere? Open

Difficulty 4/5 3-5 days Newbie friendliness 25/100

JuliaDiff/Diffractor.jl#64 · 3 reactions · Opened Dec 7, 2021
Error with high order derivative with Flux.chain and DiffEqFlux.FastChain Open

Difficulty 4/5 3-5 days Newbie friendliness 35/100

JuliaDiff/Diffractor.jl#63 · 2 comments · Opened Nov 29, 2021
Diffractor hangs/segfaults on Julia nightly Open

Difficulty 4/5 3-5 days Newbie friendliness 25/100

JuliaDiff/Diffractor.jl#59 · Opened Sep 24, 2021
Splatting arrays Open

Difficulty 4/5 3-5 days Newbie friendliness 35/100

JuliaDiff/Diffractor.jl#38 · 1 comment · Opened Aug 19, 2021
Avoid using rules when propagating `AbstractZero` tangents Open

Difficulty 4/5 3-5 days Newbie friendliness 35/100

JuliaDiff/Diffractor.jl#25 · 1 comment · Opened Jul 30, 2021
Control flow not supported in higher order reverse mode AD Open

Difficulty 4/5 3-5 days Newbie friendliness 28/100

JuliaDiff/Diffractor.jl#24 · 4 comments · Opened Jul 29, 2021
Mutating in closure Open

Difficulty 4/5 3-5 days Newbie friendliness 35/100

JuliaDiff/Diffractor.jl#23 · Opened Jul 28, 2021
custom AD transform plugin: a use case from YaoCompiler Open

Difficulty 5/5 Over a week Newbie friendliness 15/100

JuliaDiff/Diffractor.jl#17 · 2 reactions · Opened Jul 26, 2021

JuliaDiff/Diffractor.jl

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