Following up on your note of 28 March 2020, I notice that PGC maps and OSM maps are updated with the correct boundaries for Switzerland and its counties, with one exception: In both maps the boundary of Thusis is shown alternating Mutten and Thusis, although Mutten merged with Thusis on 01.01.2018.
This said, the polygons in the PGC "Map Counties" and the county related statistics (e.g. "Caches per Area", "Map Compare") in PGC are not correct, as they still show the municipalities as at 31.12.2019 (+ Mutten who was merged into Thusis on 01.01.18).
As of 01.01.2020 Switzerland has 2202 minicipalities + 44 territories not attributable to any county = 2246.
PGC Data shows 2227 Swiss counties, being 2213 municipalities + 14 (of 44) territories not attributable to any municipality, i.e.:
Brienzersee (2), Bielersee (BE) (2), Thunersee (2),
Lac de Neuchâtel (FR) (10), Staatswald Galm (10),
Comunanza Cadenazzo/Monteceneri (21), Comunanza Capriasca/Valcolla (21), Lago Maggiore(TI) (21), Lago di Lugano (21),
Lac de Neuchâtel (VD) (22), Lac de Morat (VD) (22),
Lac Léman (VS) (23)
Bielersee (NE) (24), Lac de Neuchâtel (NE) (24))
Assuming that PGC will keep the 14 additional territories, it should show 2216 counties (instead of 2227), due to the following mergers per 01.01.2020 (in brackets the wrong counties in PGC):
Canton Bern (2): new Thurnen (in PGC still: Kirchenthurnen, Lohnstorf, Mühlethurnen)
Canton Bern (2): new only Steffisburg (in PGC still: Schwendibach, Steffisburg )
Canton Bern (2): new only Niederbipp (in PGC still: Niederbipp, Wolfisberg)
Canton Luzern (3): new only Altishofen (in PGC still: Altishofen, Ebersecken)
Canton Fribourg (10): new Villaz (in PGC still: La Folliaz, Villaz-Saint-Pierre)
Canton Fribourg (10):new Prez (in PGC still: Corserey, Noréaz, Prez-vers-Noréaz)
Canton Graubünden (18): new only Chur (in PGC still : Chur, Maladers)
Canton Graubünden (18): new only Thusis (in PGC still: Mutten, Thusis)
Canton Aargau (19): new only Brugg (in PGC still: Brugg, Schinznach-Bad)
Could you please look into this matter and arrange for the corrections?