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)