[Diff since v0.8.0](v0.8.0...v0.8.1)

[Diff since v0.7.1](v0.7.1...v0.8.0)

**Merged pull requests:**
- AD extension package (#83) (@lkdvos)
- Add svdsolve AD rule (#84) (@pbrehmer)
- Ad extension [WIP] (#85) (@Jutho)
- add eager = false to docstring of Arnoldi KrylovAlgorithm (#86) (@VictorVanthilt)

**Closed issues:**
- WARNING: using ChainRulesCore.add!! in module KrylovKit conflicts with an existing identifier. (#82)

[Diff since v0.7.0](v0.7.0...v0.7.1)

**Merged pull requests:**
- Update docs to reflect `BiCGStab` is implemented (#79) (@lkdvos)
- docs typo (#80) (@haakon-e)
- README and Citation updates (#81) (@lkdvos)

**Closed issues:**
- citation (#77)

[Diff since v0.6.1](v0.6.1...v0.7.0)

**Merged pull requests:**
- VectorInterface (#65) (@lkdvos)

[Diff since v0.6.0](v0.6.0...v0.6.1)

[Diff since v0.5.4](v0.5.4...v0.6.0)

**Closed issues:**
- GPU Issue (#35)
- v0.5 issue (#37)
- Keyword `tol` not having desired effect in `exponentiate` (`expintegrator`) (#52)
- please tag a release (at least a bugfix one) (#54)
- eigsolve not working with howmany option (#62)

**Merged pull requests:**
- Counting numiter (#55) (@mingruyang)
- Commented the multithreaded function for support CUDA array (#61) (@albertomercurio)

[Diff since v0.5.3](v0.5.3...v0.5.4)

* 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)

[Diff since v0.5.2](v0.5.2...v0.5.3)

**Closed issues:**
- TypeError: in fieldtype, expected DataType, got Type{Union{}} (#43)
- Finding repeated eigenvalues (#44)

**Merged pull requests:**
- correct typo (#34) (@rveltz)
- Allow eigsolve to return less than `howmany` values (#39) (@mhauru)
- Update ci.yml (#41) (@matbesancon)
- Fix typos in documentation (#47) (@kyungminlee)

## KrylovKit v0.5.2

[Diff since v0.5.1](v0.5.1...v0.5.2)

## KrylovKit v0.5.1

[Diff since v0.5.0](v0.5.0...v0.5.1)