[Diff since v0.2.7](https://github.com/JuliaMolSim/DFTK.jl/compare/v0.2.7...v0.2.8) **Closed issues:** - Energy Calculation Discrepency Between Primitive Cell and Conventional Cell (#421) **Merged pull requests:** - CompatHelper: bump compat for "MPI" to "0.17" (#420) (@github-actions[bot]) - Add a nice introductory DFT reference article (#422) (@mfherbst) - Documentation for supported input and output formats (#423) (@mfherbst) - Collinear spin GGA kernel (#424) (@mfherbst)