v1.19.0

ChainRulesCore v1.19.0

Diff since v1.18.0

Merged pull requests:

• Add illustration of ∂self in the maths/propagators section (#640) (@ablaom)
• tangent_arithmetic: add norm for NoTangent, ZeroTangent and NotImplemented (#642) (@lukas-weber)
• Update Project.toml (#644) (@oxinabox)

Closed issues:

• norm(NoTangent()) causes StackOverflow (#639)

v1.18.0

ChainRulesCore v1.18.0

Diff since v1.17.0

Merged pull requests:

• Update nondiff_points.md (#637) (@dreivmeister)
• Move SparseArrays support to an extension (#638) (@devmotion)

v1.17.0

ChainRulesCore v1.17.0

Diff since v1.16.0

Merged pull requests:

• Stop testing on 1.5 (#616) (@mcabbott)
• Fix typos in documentation (#621) (@lostella)
• Change link to SemVer ref (#627) (@DanielVandH)
• Add explanation of nothing errors (#633) (@gdalle)
• Define getproperty on AbstractZeroTangents (#636) (@oxinabox)

Closed issues:

• (to be deleted) (#631)

v1.16.0

ChainRulesCore v1.16.0

Diff since v1.15.6

Closed issues:

• Loading ChainRulesCore.jl breaks complex number arithmetic on Julia 1.8.1 (#588)
• test_rrule fails on the pedagogical example (#593)
• Precompiling ChainRules stack not defined (#595)
• Warnings about unused type variable (#598)
• Using the gradient function from Flux / Zygote with a custom rrule (#617)
• overload iszero for Tangent (#619)

Merged pull requests:

• Create Invalidations.yml (#580) (@ranocha)
• [Docs] Fix pedagogical example (#594) (@mcognetta)
• Add link to ForwardDiffChainRules.jl (#596) (@gdalle)
• Fix typo (#597) (@tgymnich)
• Fix typo in adjoint derivation of sylvester (#600) (@YingboMa)
• Minor formating fix (#601) (@mcognetta)
• use === instead of == to compare Symbols (#602) (@ranocha)
• Fix a few typos (#603) (@pitmonticone)
• rm compat.jl (#605) (@ToucheSir)
• enable dependabot for GitHub actions (#608) (@ranocha)
• Remove Invenia Nightly CI runs (#614) (@oxinabox)
• iszero for Tangents (#620) (@oxinabox)

v1.15.6

ChainRulesCore v1.15.6

Diff since v1.15.5

Closed issues:

• ChainRulesCore v1.15.4 seems to have broken ChainRules (#586)
• Loading ChainRulesCore.jl breaks complex number arithmetic on Julia 1.8.1 (#588)

Merged pull requests:

• fix CI on 1.5 (#585) (@mzgubic)
• Fix some method ambiguities (#589) (@devmotion)

v1.15.5

ChainRulesCore v1.15.5

Diff since v1.15.4

Merged pull requests:

• remove unbound type parameters (#584) (@nsajko)

v1.15.4

ChainRulesCore v1.15.4

Diff since v1.15.3

Closed issues:

• Operations allowed on Tangent (#500)
• canonicalize should fill in NoTangent()? (#569)

Merged pull requests:

• Collapse zeros for Tuple & Ref tangents (#565) (@mcabbott)
• update to Documenter v0.27 (#572) (@oxinabox)
• Improve documentation of tangent types (#573) (@oxinabox)
• Take is_inplaceable_destination seriously (#577) (@mcabbott)
• Fix documentation around LaTeX commands (#583) (@hyrodium)

v1.15.3

ChainRulesCore v1.15.3

Diff since v1.15.2

Merged pull requests:

• Handle Base.tail & friends (#567) (@mcabbott)

v1.15.2

ChainRulesCore v1.15.2

Diff since v1.15.1

Merged pull requests:

• Update nondiff_points.md (#562) (@matbesancon)
• Shorten printing of Tangent and thunks (#564) (@mcabbott)

v1.15.1

ChainRulesCore v1.15.1

Diff since v1.15.0

Closed issues:

• Broken link in docs for Thunk (#559)

Merged pull requests:

• Fix broken link in the docstring of Thunk (#560) (@devmotion)