v0.13.3

New Features

• Add compatibility with ChainRulesCore for automatic differentiation support #414 (@rick2047), available for Julia 1.3+
• Improve documentation appearance #417 (@rick2047)
• Docs for monotonic interpolation #418 (@mateuszbaran)
• Add periodic boundary conditions for Constant and Linear #428 (@jaemolihm)

Bug Fixes

• Resolve issues with periodic boundary conditions #326, #419 (@natschil, @atbug)
• Fix #398 by collecting AbstractUnitRanges for GriddedInterpolation 4f6f488
• Fix #370, #424, fix Uniful tests using Requires (@ValentinKaisermayer , @ederag)
• Fix constant constructor #426 (@johnnychen94 )