SwiftLee Weekly
SwiftLee Weekly #315

7 (!!) Swift Evolution Proposal changes · Xcode 26 Compilation Caching · Spacer side effects in SwiftUI

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This week's blog post

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Curated from the community

Swift Evolution

Last week's Swift proposal state changes. Review-stage proposals are your chance to influence Swift's future.

What I'm working on

Conference Season

It's the time of the year before summer where many conferences take place. Last Friday, I spoke at AppDevCon, and next week I'll by flying to speak in Shanghai for Let's Vision 2026. (Let me know if you want to go, I can give you a ticket discount!)

Towards those conferences, it's busier than normal. I need to prepare my talks, while also doing normal day-to-day tasks I set for myself. Normally, I'd reuse talks at multiple conferences, but I'll be giving a brand new talk at Let's Vision: What 15 Years of Coding Didn’t Prepare Me For: Agent-Driven Development.

I aim to bundle all my learnings so far in a journey-telling talk format. This week's article shows a sneak peek into what I'll share. It's an exciting topic, highly relevant to my daily development.

At the same time, I've been updating my Agent Skills:

SwiftUI Agent Skill Swift Concurrency Agent Skill

Both skills are full of knowledge and they're now optimized for much better token usage. The net result is ~4,000+ fewer tokens read per typical agent query through smarter routing, with zero loss in knowledge depth. You can read more about this change on Twitter or LinkedIn. Enjoy!

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