[Diff since v0.4.4](https://github.com/JuliaMolSim/DFTK.jl/compare/v0.4.4...v0.4.5) **Closed issues:** - Make perturbation-based error bounds available in master (#560) **Merged pull requests:** - Merge the two functions for standardising cells (#568) (@mfherbst) - More XC fallback implementations (#569) (@mfherbst) - Recode lda_c_vwn (#570) (@antoine-levitt) - Implement meta-GGA functionals (#571) (@mfherbst) - Implement meta-GGAs depending on the laplacian of the density (#572) (@mfherbst) - Remove outdated and broken ABINIT interface (#573) (@mfherbst)