[Diff since v0.6.17](https://github.com/JuliaMolSim/DFTK.jl/compare/v0.6.17...v0.6.18)

**Merged pull requests:**
- Factorisation of phonon test cases (#822) (@epolack)
- Inline equations fix (#947) (@epolack)

**Closed issues:**
- Rename q=k+G to something else (#753)

[Diff since v0.6.16](https://github.com/JuliaMolSim/DFTK.jl/compare/v0.6.16...v0.6.17)

**Merged pull requests:**
- Atoms calculators compatible Calculator (#921) (@CedricTravelletti)
- Uniform interface for direct minimisation and density interpolation (#936) (@mfherbst)
- Fixes of some edge cases in checkpoint handling (#937) (@mfherbst)
- Formatting / code improvement (#945) (@epolack)
- Documentation on running DFTK on clusters (#946) (@mfherbst)

**Closed issues:**
- Possibility of using hybrid functionals (#530)

[Diff since v0.6.15](https://github.com/JuliaMolSim/DFTK.jl/compare/v0.6.15...v0.6.16)

**Merged pull requests:**
- Dynamical matrix for local term (#752) (@epolack)
- Bump actions/upload-artifact from 3 to 4 (#932) (@dependabot[bot])
- Fixing gpu (#933) (@epolack)
- Improve performance of IO and serialisation (#935) (@mfherbst)

**Closed issues:**
- Non-linear core correction (#759)
- Gpu CI Failure (#934)

[Diff since v0.6.14](https://github.com/JuliaMolSim/DFTK.jl/compare/v0.6.14...v0.6.15)

**Merged pull requests:**
- Make xc term AD-compatible (#892) (@a-azzali)
- Refactor bandstructure routines and json results (#895) (@mfherbst)
- Add basic Wannier.jl integration (#899) (@Technici4n)
- Move JSON3 dependency into extension module (#907) (@mfherbst)
- Update README (#912) (@mfherbst)
- Fix caching in CI (#915) (@epolack)
- Suggestion for CI simplification (#916) (@mfherbst)
- Fix typo (#918) (@lucifer1004)
- Remove obsolete interatomic potentials interface (#919) (@mfherbst)
- Misc changes (#920) (@epolack)
- Remove collinear spin c-interface, which is now native in spglib (#924) (@mfherbst)
- Fix a bug with scaling factors in the Hartree term (#926) (@ClementineBarat)
- Removing reference to old functions (#927) (@epolack)
- Move all requires-based optional code to extension modules (#930) (@mfherbst)

**Closed issues:**
- Add interface to GPAW (#133)
- Implement ONCVPSP (Norm-converving Vanderbilt PSPs) (#134)
- Togglable timings  (#293)
- Implement nonlinear core correction (#335)
- Include `Manifest.toml` in the repo? (#922)

[Diff since v0.6.13](https://github.com/JuliaMolSim/DFTK.jl/compare/v0.6.13...v0.6.14)

**Merged pull requests:**
- Update gross_pitaevskii.jl (#908) (@antoine-levitt)
- Misc fixes (#910) (@epolack)
- Fix a bug in spglib interface (#911) (@mfherbst)

[Diff since v0.6.12](https://github.com/JuliaMolSim/DFTK.jl/compare/v0.6.12...v0.6.13)

**Merged pull requests:**
- Switching to TestItemRunner (#888) (@epolack)
- Update test selection mechanism (#901) (@mfherbst)
- Update Spglib (#903) (@mfherbst)
- Bump minimal Julia version to 1.8 (#905) (@mfherbst)
- Add cutoff parameter to PspUpf (#906) (@azadoks)

**Closed issues:**
- Use TestItemRunner.jl for managing tests (#866)

[Diff since v0.6.11](https://github.com/JuliaMolSim/DFTK.jl/compare/v0.6.11...v0.6.12)

**Merged pull requests:**
- Computation of the Fourier transform of the force constant matrix of Ewald (#762) (@epolack)
- CompatHelper: bump compat for Polynomials to 4, (keep existing compat) (#874) (@github-actions[bot])
- CompatHelper: bump compat for Spglib to 0.8, (keep existing compat) (#876) (@github-actions[bot])
- Implemented density transfer, added timings to hessian (#878) (@a-azzali)
- Bump actions/checkout from 3 to 4 (#879) (@dependabot[bot])
- warning uses unexisting variable (#880) (@epolack)
- fix for documenter 1.1 (#882) (@epolack)
- Removing unsupported branch (#883) (@epolack)
- Correct typo in preconditioners.jl (#885) (@gkemlin)
- Updating SCF doc (#886) (@epolack)
- Smaller fixes (#890) (@mfherbst)
- Add missing `using Plots` to graphene example (#891) (@Technici4n)
- Try to fix interval arithmetic tests by version bound (#894) (@mfherbst)
- CompatHelper: add new compat entry for Statistics at version 1, (keep existing compat) (#897) (@github-actions[bot])
- CompatHelper: add new compat entry for Artifacts at version 1, (keep existing compat) (#898) (@github-actions[bot])

**Closed issues:**
- ExtXYZ segfault (#889)

[Diff since v0.6.10](https://github.com/JuliaMolSim/DFTK.jl/compare/v0.6.10...v0.6.11)

**Merged pull requests:**
- Add versioninfo function (#872) (@mfherbst)
- Initial support for serialisation to JSON (#875) (@mfherbst)

[Diff since v0.6.9](https://github.com/JuliaMolSim/DFTK.jl/compare/v0.6.9...v0.6.10)

**Closed issues:**
- Switch to ReTest (#508)
- Unexpected error when using Crystallographic Information Framework (CIF) File Input (#863)

**Merged pull requests:**
- API change for Ewald and pairwise computations (#853) (@epolack)
- Extend details on precompilation and developer setup (#862) (@mfherbst)
- Parse element by number (#864) (@mfherbst)
- Fix GPU CI (again) (#865) (@mfherbst)
- Fix GPU tests (#867) (@vchuravy)
- Fix for Ewald (#869) (@epolack)
- CompatHelper: bump compat for Spglib to 0.7, (keep existing compat) (#870) (@github-actions[bot])
- Collection of some documentation extensions and bugfixes (#873) (@mfherbst)

[Diff since v0.6.8](https://github.com/JuliaMolSim/DFTK.jl/compare/v0.6.8...v0.6.9)

**Merged pull requests:**
- Fix various smaller bugs (#860) (@mfherbst)

[Diff since v0.6.7](https://github.com/JuliaMolSim/DFTK.jl/compare/v0.6.7...v0.6.8)

**Closed issues:**
- Initial guess density currently broken on GPU (#841)
- unit and equation of calculated force  (#847)
- Minus sign in Fourier transform of projectors (#855)

**Merged pull requests:**
- Fix initial density guess generation for GPU runs (#850) (@zhubonan)
- Fix sign in Fourier transform of projectors (#856) (@antoine-levitt)
- Switch to PrecompileTools (#857) (@mfherbst)
- Fix GPU CI by enforcing to run on CUDA 11 (#859) (@mfherbst)

[Diff since v0.6.6](https://github.com/JuliaMolSim/DFTK.jl/compare/v0.6.6...v0.6.7)

**Closed issues:**
- Remove remaining ASE-dependent code (#756)
- Mixed Reduced and Cartesian coords in apply_symop ? (#837)
- Precompilation causes warning (#843)
- Rounding issues cause bad wannier interface (#844)
- how to customize/define an xc functional (#848)

**Merged pull requests:**
- Less ambiguous SymOp doc (#840) (@epolack)
- Fix LAPACK non-orthogonality (#842) (@antoine-levitt)
- Fix rounding in symmetry (#845) (@antoine-levitt)
- Precompilation warning (#846) (@antoine-levitt)

[Diff since v0.6.5](https://github.com/JuliaMolSim/DFTK.jl/compare/v0.6.5...v0.6.6)

**Merged pull requests:**
- Need to depend on AtomsIOPython in tests (#838) (@mfherbst)
- More graceful numerical checks (#839) (@mfherbst)

[Diff since v0.6.4](https://github.com/JuliaMolSim/DFTK.jl/compare/v0.6.4...v0.6.5)

**Closed issues:**
- Support ARM / aarch64 / "Apple silicon" M-series processors  (#820)
- Julia Nightly tests failing (#826)
- Usage Support: Adding DFTK.jl to Matsci Discourse Community (#833)

**Merged pull requests:**
- Non-linear core correction and pseudopotential density guess (#766) (@azadoks)
- Fixing some documentation layouts & duplicate (#815) (@epolack)
- Model update constructor (#816) (@mfherbst)
- MPI Allreduce fallbacks for aarch64 support (#821) (@azadoks)
- Fix fast test execution (#827) (@epolack)
- Fix Hamiltonian application for nonstandard models (#829) (@antoine-levitt)
- Bump actions/checkout from 2 to 3 (#830) (@dependabot[bot])
- Bump codecov/codecov-action from 2 to 3 (#831) (@dependabot[bot])
- Fixing documentation links (#832) (@epolack)
- Update introductory resources and publications (#834) (@mfherbst)

[Diff since v0.6.3](https://github.com/JuliaMolSim/DFTK.jl/compare/v0.6.3...v0.6.4)

**Merged pull requests:**
- Integrate with AtomsBase 0.3 (#814) (@mfherbst)

[Diff since v0.6.1](https://github.com/JuliaMolSim/DFTK.jl/compare/v0.6.1...v0.6.3)

**Closed issues:**
- Latency (#402)
- LDOS mixing for non-monotonic smearings (#787)

**Merged pull requests:**
- Implement more flexible Fermi level algorithm interface (#792) (@mfherbst)
- Add simplistic time per SCF step printing (#806) (@mfherbst)
- Add precompilation (#809) (@antoine-levitt)
- Vastly improve GPU support (#813) (@mfherbst)

[Diff since v0.6.0](https://github.com/JuliaMolSim/DFTK.jl/compare/v0.6.0...v0.6.1)

**Closed issues:**
- Crash with PyPlot (#808)

**Merged pull requests:**
- Remove load_xyz functions (#805) (@mfherbst)

[Diff since v0.5.15](https://github.com/JuliaMolSim/DFTK.jl/compare/v0.5.15...v0.6.0)

Note that this release increases the minor version and contains a number of breaking changes:

- The `self_consistent_field` and `potential_mixing` SCF functions now check convergence in the density by default. This means that `self_consistent_field(basis; tol=1e-6)` now converges until the change in density between subsequent steps is below `1e-6`. Before it used to converge until the change in energy was less than `tol`. To recover the old behaviour use `self_consistent_field(basis; is_converged=DFTK.ScfConvergenceEnergy(tol))`. (#800)

- The `load_lattice`, `load_atoms` and `load_positions` functions are now deprecated and will be removed in DFTK 0.6.1. Users are advised to use `AtomsIO` for the purpose of loading structures from external files. See https://docs.dftk.org/v0.6/examples/atomsbase/ and https://github.com/mfherbst/AtomsIO.jl for examples.

- Instead of using NLSolve's Anderson acceleration we have switched to a built-in implementation, which we found more stable in practice. (#791)
  The NLSolve-been approach has been removed completely.

- The deprecated `G_to_r` and `r_to_G` functions for FFTs have now been removed in favour of `ifft`, `fft` and similar. (#804)

- The deprecated `n_bands` and `n_ep_extra` arguments from `self_consistent_field` have now been removed. (#804)

**Closed issues:**
- Struct for atoms (#118)
- GPU discussion (#350)
- SCF default tolerance should be on the density (#780)
- Run GPU CI only after activation (#803)

**Merged pull requests:**
- Bugfix for computations of `δψ` and supercells (#775) (@epolack)
- Switch default scf solver to builtin Anderson (#791) (@epolack)
- Add developper documentation for GPU computations (#793) (@GVigne)
- Correct PW parameterization comment (#795) (@epolack)
- Add GPU CI via gitlab (#796) (@mfherbst)
- Switch to density tolerance by default (#800) (@mfherbst)
- Make cigpu badge a link to ci pipelines in gitlab (#801) (@carstenbauer)
- Rely on AtomsIO for structure parsing (#802) (@mfherbst)
- Remove deprecated features (#804) (@mfherbst)

[Diff since v0.5.14](https://github.com/JuliaMolSim/DFTK.jl/compare/v0.5.14...v0.5.15)

**Closed issues:**
- Serialisation test fails (#782)

**Merged pull requests:**
- Make some computations in DFTK GPU-compatible (#712) (@GVigne)
- Transfer phonon (#760) (@epolack)
- Expand ForwardDiff support to LocalNonlinearity parameters (#779) (@niklasschmitz)
- Bugfix for UPF (#781) (@epolack)
- Specialisation for transfer along identical lattices (#783) (@epolack)
- Printing fixes (#785) (@mfherbst)
- Improve DOS plotting default axes ranges (#786) (@mfherbst)
- Fix damping solver (#788) (@GVigne)

[Diff since v0.5.13](https://github.com/JuliaMolSim/DFTK.jl/compare/v0.5.13...v0.5.14)

**Merged pull requests:**
- Ewald with ForwardDiff and merge (#774) (@epolack)
- add a keyword argument to plot_dos to support user-defined unit (#776) (@kunyuan)
- Warn for slated pymatgen removal (#778) (@mfherbst)