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Why enterprises use .NET and C# technologies?
(lemmy.one)
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this post was submitted on 28 Aug 2023
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Because code written 20 years ago on .NET and C# still works today, showing the stability of the platform.
I mean... as someone who's had to port some .NET framework software to .NET 6... yes... but.
20 years old .NET framework code will keep working, sure, as long as you can find and install the correct .NET framework runtime, but maintaining it might be a different matter... you can code .NET with notepad, if you feel like it, but for .NET framework code you will need Visual Studio, with the proper SDKs... which might not be available in the latest version of Visual Studio (on occasion I've had to install VS 2019 so I could compile old .NET framework code in VS 2022).
And when you get it to compile you still might have to deal with third party tools (Crystal Reports, for instance) that don't work in modern .NET or later versions of Visual Studio...
And of course then you want to add something new to the code, which is why you went through all that trouble to begin with... but the tools for what you want to do are only available in modern .NET, or as nuget packages that won't work with framework... and you'll have to migrate the whole thing to the latest long term support version of .NET... which sure, is several orders of magnitude less work than rewriting the whole thing in some other language, and heavily automated... but is still a whole process.
But then of course there's the bits of .NET framework that got deprecated during the transition (or in later updates), or the third party libraries that never got updated... and you'll have to find or implement replacements for those...
But yeah, once you've done all that your refurbished 20 year old code will still work today, and significantly better than it did before... and if it isn't too ridden with windows dependencies (WPF and the like) it might even be portable to Linux or Mac, or whatever. And it'll probably still work (and do it even better) 20 years from now.
I'm working on migrating a lot of old .Net Framework code right now, we're generally going with a complete rewrite but that's more to do with poor architectural decisions and the fact a lot of it is VB rather than C#.
It's pretty impressive that code largely written up to 20 years ago is now running on a modern OS, and it's using the latest Framework 4.8 with all the latest security updates and I can open VS2022 and hit run and it builds and runs fine. Our issues are the maintainability of the code and how it was written rather than the framework itself.
Meanwhile, a few years ago now, I had a web project written in typescript, it was only about a year out of date and npm install failed. Turns out one of dependencies needed to build something with python2, updating that needed a new version of webpack and that broke something else that never got an update to the newer webpack. Installing python2 didn't work either I think but I can't remember why.
There's systems I wrote for .Net over a decade ago that I can guarantee are still running in production and haven't been touched in all that time.
In short, I think I'm agreeing with you. It's painful but it's possible.
Meanwhile in Ubuntu-land, a Python2 script probably just straight up doesn't work at all.
"At least the .NET code continues to run today". And you can setup a 20-year-old developer VM running VS2008 in practice and code "the old way" to continue to maintain the old code (that still runs on today's machines). Meanwhile, you're FORCED to migrate the Python2 stuff in Ubuntu-land due to a litany of incompatible changes to systemd, X.org, Python2 vs 3 issues and more.
Not just Python2, but also Bash-scripts. (Weird changes to netcat, or ipconfig, or other tools that utterly bork old scripts).
Microsoft isn't as good at backwards compatibility as it used to be. But they're still leagues ahead of the OSS community on this.