v0.5.4

KrylovKit v0.5.4

Diff since v0.5.3

• Julia 1.8 compatibility
• use new Julia multithreading capabilities (minimum Julia requirement has been increased to 1.4)
• various fixes and improvements
• various doc improvements
• improved coverage

Closed issues:

• is *(::Int, ::YourVector) a required operation (#33)
• issymmetric does not select Lanczos (#36)
• Bug getting multiple degenerate eigenvalues (#38)
• Memory optimisation (#40)
• linsolve on CUDA has an issue (#45)

Merged pull requests:

• Implement BiCGStab (#50) (@lkdvos)
• Reuse initial apply in expintegrator (#53) (@emstoudenmire)