Compatibility Date in Nuxt 4 and Nitro

📅 Huh? Were you also asked to provide a "compatibilityDate" when upgrading to Nuxt 3.12 or later? And also wondered what it is about? Then fret no more! In this video, the whole concept behind compatibilityDate will be explained - why it is necessary, if you should set it already and how providers play a role!
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Key points:
✨ Why was compatibility date introduced?
⚙️ What does it change for me?
‼️ Should I set it?
📣 @danielroe 's Summary
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Links:
🔗 Docs nuxt.com/docs/api/nuxt-config...
📺 DejaVue #013 - The Road to Nuxt 4 (with Daniel Roe) - share.transistor.fm/s/caa4a6a4
📺 ‪@DejaVueFm‬ #015 - Ten Years of Vue (with Evan You) - share.transistor.fm/s/6b6bab42
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🌐 Connect further:
Website: www.lichter.io
Twitter/X: / thealexlichter
Twitch: / thealexlichter
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Chapters:
00:00 Intro
00:31 Why compatibilityDate?
04:28 Tooling around it
04:51 Fine-grained compatibility dates
05:57 Other APIs and runtimes using compatibility dates
06:20 What compatibilityDate is not for
07:42 Daniel Roe's summary
08:23 Summary

[@TheAlexLichter]

Did you see "compatibilityDate" already?

[@thetakburger7928]

Yesterday !

[@rrd_webmania]

Yep. It started to bugging me what was it. Thanks. You saved me some searching time.

[@vasiliugeorge-stefan3971]

Thanks a lot for the video, I had already enabled it and kinda guessed this was the purpose it had, though I like you went a little bit more in details.
I would like to know if it would be possible to extend this concept/purpose to also apply for layers. The use-case would be the following:
Imagine you have several teams working on different products, that must all respect the company's UI guidelines. There is another team let's say platform team that initially created a few Nuxt 3 projects that would serve as the base layers for all other teams, which in their own project simply extend via layers so they inherit the necessary components/layouts/assets/etc. The platform team may continuously work on the base layers and add features bug fixes etc which would be instantly propagated to the other projects. Adding a semantic versioning and compatibility for layers would allow all other teams to still benefit of the base layers updates ( which might be critical like new components that are a must to have ) but also allow flexibility for them to choose when to update their own projects to the requirements of the base layers, and it would be great in solving a lot of synchronization issues that arise between teams that work with dependent projects. Having something like this to treat layers like providers would be great ! Maybe allow us to extend some stuff from the compatibility date in order to provide custom implementation for handling the new date issue ? Another scenario would be for example a common api/nitro server that is used and you don't want necessarily to change in your components the code required to keep up to date with the api , via compatibility date it would be much different.
Anyway, great video ! Keep them coming.

[@alessiochiffi5410]

Was a bit weird indeed adding this from the CLI without knowing what it does. Makes sense now, thanks! Does node-server as a preset have the same chance of major breaking changes?

[@QueeeeenZ]

Thank you for educating us. I think this explanation should also be included in the docs. There is very little in the docs, you explained it in much more detail here. Or maybe just link to this video in the docs.

[@TheAlexLichter]

Will do both 👌

[@Lannnister]

ohhh I was so looking forward to hearing about astrology 😁 - Great content, thanks Alex!

[@RussPainter8]

I like your videos, but i don't get this one at all. I think it could really use a concrete example

[@FaradayAcademy]

Thanks 💯

[@TheAlexLichter]

No problem 🙌

[@dp-vn4yx]

🤩🤩

[@TheAlexLichter]

🙏🙏🙏