Keeping timezone data current

On 1st of November 2026 several canadian provinces will not fall back to standard time from DST. They decided at several different points in time that they will not do so. British Columbia did so in March already whereas Alberta decided so in June, the Northwest Territories in August and Manitoba in September. As is the usual process shortly after the decission was made, there was a new version of the timezone-database released so that the information is available only with a short delay to everyone that needs it. Who needs that? Well… That database is on every computer whether Linux, Windows or MacOS, on every mobile device from Android to iOS and on every Smartwatch out there. In every GPS in your car, yacht or plane. More or less in any electronic device that keeps track of time. So yes! Your smart-fridge might also be running it. I was now recently challenged to do some updates of data that was converted wrongly based on the information in the old versions of the database and to…