Changing Immutable Collections

As I ve written before, I m leaning heavily into immutability in the election site code. Until September 2025 (it s taken a long time to get round to writing this blog post) that meant a combination of records, ImmutableList T and ImmutableDictionary TKey, TValue . In an ECMA C# standards meeting, however, Joseph Musser passed on some really valuable feedback Continue reading Changing Immutable…