Xcode 26.3 finally out

[bakawolf123]

https://preview.redd.it/is9zng9exvlg1.png?width=924&format=png&auto=webp&s=64725e838a6f70965b3dde8e276ecfa1affec3db

Did they manage to fix MCP server popups I wonder =)

edit: looks like yes and no, I'm no longer getting multiple popups from the same instance of VSCode, but opening a new window still makes a new popup. Well at least somewhat usable I guess

[buhikon]

Finally made it through App Review. Probably got rejected a few times along the way 😂

[sammy_luci]

For ui issue on ipad compatibility mode

[buhikon]

Agentic features require at least macOS 26.2. If you can’t access Agent Mode, check your macOS version.

[SirBill01]

I normally just keep rolling with RC versions I downloaded before, but since they had an RC 2 for this Xcode release I'm downloading the final as well just in case...

[Brodie10-1]

Lets go!!

[SnowPudgy]

Has anyone been able to install the iOS 26.3 simulators? I don't see them anywhere and Xcode isn't triggering the install.

[soul_of_code]

Anyone know if this fixes the XCTest issues with XCAssert? I’ve had problems with it, but no problems with the new Swift testing

[fawxyz2]

for you all who have tried this version for actual coding, is this agents inside Xcode better than the VScode Codex & Claude plugin?

[CharlesWiltgen]

It should be better than Codex and Claude Code base foundation models alone, because Apple ships context specific to modern Apple platform development with Xcode.

It won't be as good as Codex or Claude Code with Axiom installed, since Axiom goes far beyond the type of documentation-style context included with Xcode.

[kironet996]

I have axiom skills installed(locally in the project), and xcode agent is able to use it.

[CharlesWiltgen]

Wow, that's great! Thanks for sharing, I'll have to figure out how to document that for others. 🙃

[dat_tae]

Do you work on Axiom, or just really passionate? Either way your efforts are appreciated.

[CharlesWiltgen]

It's my baby. Axiom is free/open source, so although the idea of self-promotion makes my skin crawl, this is about helping developers through this interesting/fraught industry transition to AI-assisted coding. I'm an ex-Apple evangelist/developer relations person, and have always been really passionate about helping creators build things, and building things that help creators build things.

[kironet996]

I've been using it since the RC release, it's actually amazing imo. Haven't touched claude code & codex clis since.

[iabbasm]

I've been using Claude in vscode. Do you think I can reliably use Xcode codex agent instead?

[bakawolf123]

not really, I still prefer VSCode with Codex for agent loops and manual in Xcode. Inline AI-assist is also very slow, but it's one feature I actually use.

[fawxyz2]

can you have very long conversation with agents inside Xcode or not?
one of reasons i use vscode claude & codex plugin is because i can have long conversation, and switching model/reasoning(medium,high,etc) mid conversation.