DifferentiationInterface-v0.6.0

TLDR

Caution

This release is very breaking, nearly all downstream code will require adaptation. Read the documentation for details.

Main breaking changes

• New order of arguments (#435): the result of preparation (formerly called extras, now called prep) comes right before the backend.
• Tangents require NTuples (#455 + #501): for pushforward, pullback and hvp, you must always pass tangent(s) inside an NTuple (even if it has a single element).
• Tapir.jl is now called Mooncake.jl (#500)

Main new features

• Constant arguments (#461 and others): most backends now support passing additional context arguments that are not differentiated (unlike the active argument x).
• Package load time has been greatly reduced (#448)
• Enzyme's batch mode is fully exploited (#471, #495)

What's Changed

• [BREAKING] Change order of arguments by @gdalle in #435
• [BREAKING] Move sparse functionality into package extensions by @gdalle in #448
• [BREAKING] Modify checks and improve docs by @gdalle in #449
• Remove dependency on DocStringExtensions by @gdalle in #450
• Remove FillArrays dependency by implementing custom OneElement by @gdalle in #453
• Bound FastDifferentiation compat to <0.4 by @gdalle in #454
• [BREAKING] Force use of Tangents in pushforward, pullback and hvp by @gdalle in #455
• Better type annotations in fallbacks by @gdalle in #458
• Remove fallback backend -> SecondOrder(backend, backend) by @gdalle in #459
• Get rid of functors for second order by @gdalle in #460
• Fix docs typos by @gdalle in #463
• Update Tapir to use cached rules where possible by @willtebbutt in #464
• Multi-argument support: basic infrastructure by @gdalle in #461
• Improve docs and document contexts by @gdalle in #469
• [BREAKING] Clean up tests by @gdalle in #470
• Fix and test ForwardDiff type stability by @gdalle in #473
• Contexts for Zygote by @gdalle in #474
• Clarify role of constants in preparation by @gdalle in #485
• Adapt to Enzyme v0.13 by @ExpandingMan in #471
• Make DifferentiateWith compatible with ForwardDiff, clarify docs by @gdalle in #487
• Remove use of custom isequal to compare scenarios by @gdalle in #486
• Add constant contexts for Enzyme by @gdalle in #489
• Update neural network tests by @gdalle in #490
• Rename extras to prep by @gdalle in #491
• Better HVP in reverse over forward by @gdalle in #494
• Implement contexts for more backends by @gdalle in #492
• More batch mode for Enzyme by @gdalle in #495
• Fix Enzyme's batched pullback and Jacobian by @gdalle in #499
• Contexts for FiniteDiff and PolyesterForwardDiff, better context testing by @gdalle in #497
• Clean up ReverseDiff type annotations by @gdalle in #498
• [BREAKING] Transition from Tapir to Mooncake by @gdalle in #500
• Replace Tangents with NTuple by @gdalle in #501

New Contributors

• @ExpandingMan made their first contribution in #471

Full Changelog: DifferentiationInterface-v0.5.17...DifferentiationInterface-v0.6.0