Issues

• @grad/@grad_from_chainrules fail for rules returning structured arrays (Diagonal, UpperTriangular, ...)

  JuliaDiff/ReverseDiff.jl#321 · Filter by author devmotion opened on Oct 5, 2026

• @grad_from_chainrules does not support where clauses

  JuliaDiff/ReverseDiff.jl#320 · Filter by author devmotion opened on Oct 5, 2026

• @grad_from_chainrules hygiene: types in vararg arguments are not escaped

  JuliaDiff/ReverseDiff.jl#319 · Filter by author devmotion opened on Oct 5, 2026

• @grad fails for qualified function names (gensym(::Expr))

  JuliaDiff/ReverseDiff.jl#318 · Filter by author devmotion opened on Oct 5, 2026

• Broadcasting bypasses scalar rules defined with @grad/@grad_from_chainrules

  JuliaDiff/ReverseDiff.jl#317 · Filter by author devmotion opened on Oct 5, 2026

• Custom rules collide with ReverseDiff's own SpecialInstructions for the same function

  JuliaDiff/ReverseDiff.jl#316 · Filter by author devmotion opened on Oct 5, 2026

• @grad/@grad_from_chainrules silently reuse a tangent if a pullback returns too few tangents

  JuliaDiff/ReverseDiff.jl#315 · Filter by author devmotion opened on Oct 5, 2026

• Zero tangents (NoTangent, ZeroTangent, nothing) for tracked arguments throw a MethodError in @grad/@grad_from_chainrules

  JuliaDiff/ReverseDiff.jl#314 · Filter by author devmotion opened on Oct 5, 2026

• Non-differentiable operations are left off the tape, so replays return stale values and gradients

  JuliaDiff/ReverseDiff.jl#313 · Filter by author devmotion opened on Oct 2, 2026

• TrackedVector' * v is ambiguous for AbstractVectors other than Vector

  JuliaDiff/ReverseDiff.jl#310 · Filter by author devmotion opened on Sep 29, 2026

• map of a TrackedArray and a StaticArray is ambiguous

  JuliaDiff/ReverseDiff.jl#309 · Filter by author devmotion opened on Sep 28, 2026

• x' * SMatrix fails for SVector inputs

  JuliaDiff/ReverseDiff.jl#308 · Filter by author devmotion opened on Sep 28, 2026

• Reductions with dims bypass the recorded instructions, and sum(x, dims) errors

  JuliaDiff/ReverseDiff.jl#303 · Filter by author devmotion opened on Sep 22, 2026

• Method ambiguities with SparseArrays.jl

  JuliaDiff/ReverseDiff.jl#278 · Filter by author penelopeysm opened on Dec 4, 2025

• Acknowledging ReverseDiff.jl in scientific publications

  JuliaDiff/ReverseDiff.jl#266 · Filter by author facusapienza21 opened on Nov 14, 2024
  2

• MethodError: vcat(::ReverseDiff.TrackedArray{Float32, Float32, 2, Matrix{Float32}, Matrix{Float32}}, ::Matrix{Float32}) is ambiguous.

  JuliaDiff/ReverseDiff.jl#242 · Filter by author prbzrg opened on Oct 27, 2023
  4

• Add ChainRulesCore RuleConfig?

  JuliaDiff/ReverseDiff.jl#238 · Filter by author gdalle opened on Sep 14, 2023
  1

• Strange bug when deferring to ChainRules

  JuliaDiff/ReverseDiff.jl#236 · Filter by author torfjelde opened on Aug 7, 2023
  1

• Enhancement proposal: Modular tape caching

  JuliaDiff/ReverseDiff.jl#234 · Filter by author jacobusmmsmit opened on Jun 6, 2023
  16

• Nested differentiation of closures yields incorrect results. Any news on the fix?

  JuliaDiff/ReverseDiff.jl#233 · Filter by author arthur-bizzi opened on May 23, 2023

• ReverseDiff defines a huge number of methods.

  JuliaDiff/ReverseDiff.jl#226 · Filter by author KristofferC opened on Apr 25, 2023
  3

• Define typemin for tracked reals.

  JuliaDiff/ReverseDiff.jl#225 · Filter by author manuelbb-upb opened on Apr 18, 2023

• ReverseDiff documentation shows issue that has been fixed? Nested differentiation of a closure?

  JuliaDiff/ReverseDiff.jl#222 · Filter by author jacob-m-wilson-42 opened on Mar 22, 2023
  1

• @grad_from_chainrules macro fails when using multi-output functions

  JuliaDiff/ReverseDiff.jl#221 · Filter by author ThummeTo opened on Mar 16, 2023
  3

• MethodError: ReverseDiff.TrackedReal ... is ambiguous.

  JuliaDiff/ReverseDiff.jl#217 · Filter by author prbzrg opened on Feb 6, 2023