Hey package devs - some of you may well have heard from us at HQ directly today on this but for those of you who haven't ... We have had to make a last-minute breaking change, thus another RC is coming out for version 17, 17 RC4. More info here: https://github.com/umbraco/Umbraco-CMS/discussions/20902#discussioncomment-15061759 In short: Swashbuckle released a new version because they rely on Microsoft's OpenAPI.NET version 1.x which is EOL by the end of this month. The new version of Swashbuckle has some breaking changes. Tomorrow morning Umbraco 17 RC4 will be on NuGet and you can test and fix against that any packages that you had already had tested on 17 RCs. Hopefully you won't have anything to fix. and we are sorry about how last-minute this is Any more questions, feel free to leave them in the discussion linked to above so we can all learn from each other!

Hi Lotte, I already saw the discussion. Very good to place it here as well! I will try the RC tomorrow and see what breaks, but I don't have an idea what to expect. What will I notice in my packages? Do you have any idea?

using Microsoft.OpenApi.Models;

is now

using Microsoft.OpenApi;

that compilation error that will need fixing. hopefully you won't have any issues 🤞

I also had an issue with setting sechma "Discriminator" values, but that's quite the edge case, so i suspect you won't havet that one!

I added the changes that I needed to do here: https://github.com/umbraco/Umbraco-CMS/discussions/20902#discussioncomment-15071713