I've updated the address data on http://qa.poole.ch/addresses/ch/ to the current GWR address data.
There is one, larger, change from the previous update (mid-2019). As it seems to be a trend to add ancillary buildings now with house numbers in the format/number/*.*/number /I've removed them from both the statistics and the generated files, this removes a good 200'000 addresses from the current dataset (note if somebody wants this data I can generate files with them included).
This, naturally, doesn't address the problem with non-postal house numbers and the different ways of handling them in general, put should limit the effect it has to the places and cantons that are not using a numbering scheme that doesn't differentiate these in format.
Simon