nimforum mirror - Nim version 2.0.0 is here

Araq (orginal) [2023-08-01T15:45:52+02:00] view original

https://nim-lang.org/blog/2023/08/01/nim-v20-released.html

Well, what can I say... It took longer than expected. With ensureMove and =dup and =wasMoved and the non-var-T destructors and refinements regarding Isolated[T] the ORC model is finally complete.

Next step is to update the book to mention these more recent developments. I will add a chapter about multi-threading and Nim's new memory model. This time the book will have an E-book version so that you all can buy it a 2nd time.

A big thanks to everybody who contributed!

Now here is some questions&answers:

Q: What about IC? A: Bugs aside, the way we implemented IC doesn't show enough of a performance benefit so we'll redo the way it works yet again. Sorry.

Q: What is your favorite feature of this release? A: Overloadable enums.

Q: This version has been in development for good, why release it today? A: Because I need some vacation and it's mean to deprive people of all the progress we have been able to achieve.

moigagoo (orginal) [2023-08-01T16:32:42+02:00] view original

Congrats! 🎉

Have a great well-deserved vacation Andreas!

Huge thanks to everyone in the Nim core team and all the package maintainers for your work 🙏

didlybom (orginal) [2023-08-01T17:53:32+02:00] view original

Congratulations! There is a lot to love about this new release. I’m particularly happy that ORC has finally become the default memory management strategy.

@Araq, since you mention it in your post, what is the new approach for IC?

Anyway, enjoy your well deserved vacation. Thanks a lot for your hard work!

termer (orginal) [2023-08-01T18:51:16+02:00] view original

I'll be interested in reading about overloadable enums, I haven't seen those before. Another thing I'm hoping to see is a lot of feature removal, but we shall see. Sad to see IC pushed back again, but such is life.

Hobbyman (orginal) [2023-08-01T18:53:01+02:00] view original

Coincidently I saw Nim 2.0 was released; great! Hopefully it doesnt mean too much upgrading of my code (github some-avail). But with choosenim I can switch and do it slowly if necessary. Because of looming RSI i have to do it slowly anyway.. Thanx and good vacation to all...

treeform (orginal) [2023-08-01T19:23:59+02:00] view original

Congratulations all! Thank you to everyone who contributed.

Araq (orginal) [2023-08-01T19:56:11+02:00] view original

since you mention it in your post, what is the new approach for IC?

Compiling modules into some interface file that loses information (!) so that the serialization steps finally become cheap enough.

Isofruit (orginal) [2023-08-01T20:30:49+02:00] view original

Oh! Sweet to see the 2.0 release, one more milestone achieved! Congratulations to everyone involved!

xigoi (orginal) [2023-08-01T20:59:03+02:00] view original

I'm amazed. The Hacker News thread has 115 comments so far and not a single mention of style insensitivity.

moigagoo (orginal) [2023-08-01T21:20:59+02:00] view original

I also noticed that :-) So, we won, didn't we? 💪

noah (orginal) [2023-08-20T10:34:52+02:00] view original

Scala - incoherent mess.

LOL! I dabbled in Scala at caesars, i hated it, everyone fkn hated it. But I did grow as a programmer learning it

Araq (orginal) [2023-08-20T10:50:37+02:00] view original

And I've just finished the added chapter about multi-threading. ;-)

c4UlMu (orginal) [2023-08-20T21:49:32+02:00] view original

Can I buy it as e-book right now?

Araq (orginal) [2023-08-21T00:02:42+02:00] view original

No, but soon.

HiPhish (orginal) [2023-09-21T12:19:18+02:00] view original

How is backward compatibility with Nim 1.x source code? If one wanted to package Nim 2 for a GNU/Linux distro, should there be a separate nim2 package (which might conflict with the nim package) or is it fine to treat Nim 2.0 as a straight upgrade?

Araq (orginal) [2023-09-21T12:32:45+02:00] view original

Compatible enough as it's possible to write code that works with both versions.

Isofruit (orginal) [2023-09-21T17:49:27+02:00] view original

If the package is postgres/mysql/sqlite related then there's a risk of it only working on one version. However, for the majority of packages I encounter, work on or use I can't say I noticed a difference.

mildred (orginal) [2023-09-28T23:16:23+02:00] view original

Is there a documentation explaining the new memory model with Nim 2.0 ? As I understand the gcsafety is a little different and there is the new isolate, but I'm not sure where this is described in details. The manual does not explain it that much.

Araq (orginal) [2023-09-28T23:31:42+02:00] view original

It's been deliberately left under-documented so that I sell more books. Nah, just kidding. I will see if I can patch the documentation.

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