I think at the moment we might as on tines. I've heard people upgrading three six and b or throwing away old versions just so they can write f strings, which is great. But it turns out that the actual Parser for f strings is kind of insane. Tingis amnant curchag in thousand, 400 lines of customcpia c parser code,. jasper f strang: separate from the regular parzer, this whole file is just manually handwritten se code to parsing strings.