Thanks. I didn't know about that list and have now found it in there:Normally such references can be found in the "References" section of the IOC website. (The link is under the "IOC Lists" heading). However in this case the many "Smith et al." references end in 2021.
The title omits to mention "by the way, in passing we've recommended some changes to taxonomic order" but then that wasn't the purpose of the publication.Smith BT, J Merwin, KL Provost, G Thom, RT Brumfield, M Ferreira, WM Mauck III, RG Moyle, T Wright & L Joseph. 2023. Phylogenomic analysis of the parrots of the world distinguishes artifactual from biological sources of gene tree discordance. Systematic Biology71(1): 228-241.