v4.44.0

DiffEqOperators v4.44.0

Diff since v4.43.1

Closed issues:

• Cannot create BandedMatrix from GhostDerivativeOperator (#394)
• SplitODEProblem broken for MatrixFreeOperator (#520)

Merged pull requests:

• Warn of impending deprecation, with alternatives (#521) (@xtalax)
• Make sure to use SciML Style (#523) (@ChrisRackauckas)
• doc cov (#526) (@ArnoStrouwen)
• [skip ci] badges (#527) (@ArnoStrouwen)
• MassInstallAction: Install the Invalidations workflow on this repository (#529) (@devmotion)
• Provide performance note in Docs (#530) (@dev10110)
• canonize docs (#531) (@ArnoStrouwen)
• [skip ci] typo (#532) (@ArnoStrouwen)
• reproducible docs (#533) (@ArnoStrouwen)
• [skip ci] doc compat (#534) (@ArnoStrouwen)
• Remove nonlinearsolve dependency (#536) (@ChrisRackauckas)