Resolves#7591
This moves our CI to build macOS on Sequoia (macOS 15) with Xcode 26,
including the new macOS 26 beta SDK.
Importantly, this will make our builds on macOS 26 use the new styling.
I've added a new job that ensures we can continue to build with Xcode 16 and
the macOS 15 SDK, as well, although I think that might come to an end
when we switch over to an IconComposer-based icon. I'll verify then. For
now, we continue to support both.
I've also removed our `hasLiquidGlass` check, since this will now always
be true for macOS 26 builds.
We have been building on macOS 14 and Xcode 16.0 for a longggg time now.
This gets us to a version that will be running Xcode 26 eventually so
we can ultimately build for Tahoe on a stable OS.
This should change nothing in the interim.
This updates our build script and CI to support Xcode 26 and macOS
Tahoe. **This doesn't update the Ghostty app to resolve any Tahoe
issues.**
For CI, we've added a new build job that runs on macOS Tahoe with Xcode
26. I've stopped short of updating our tip release job, since I think I
want to wait until I verify a bit more about Tahoe before we flip that
bit. Also, ideally, we'd run Xcode 26 on Sequoia (macOS 15) for
stability reasons and Namespace doesn't have Xcode 26 on 15 yet.
For builds, this updates our build script to find Metal binaries using
`xcodebuild -find-executable` instead of `xcrun`. The latter doesn't
work with Xcode 26, but the former does and also still works with older
Xcodes. I'm not sure if this is a bug but I did report it: FB17874042.
Bumps [cachix/cachix-action](https://github.com/cachix/cachix-action)
from 15 to 16.
<details>
<summary>Release notes</summary>
<p><em>Sourced from <a
href="https://github.com/cachix/cachix-action/releases">cachix/cachix-action's
releases</a>.</em></p>
<blockquote>
<h2>v16</h2>
<h2>What's Changed</h2>
<ul>
<li>Add a small delay to allow post-build hooks to flush through by <a
href="https://github.com/sandydoo"><code>@sandydoo</code></a> in <a
href="https://redirect.github.com/cachix/cachix-action/pull/196">cachix/cachix-action#196</a></li>
<li>Upgraded dependencies</li>
</ul>
<p><strong>Full Changelog</strong>: <a
href="https://github.com/cachix/cachix-action/compare/v15...v16">https://github.com/cachix/cachix-action/compare/v15...v16</a></p>
</blockquote>
</details>
<details>
<summary>Commits</summary>
<ul>
<li><a
href="0fc020193b"><code>0fc0201</code></a>
Merge pull request <a
href="https://redirect.github.com/cachix/cachix-action/issues/201">#201</a>
from cachix/bump-deps</li>
<li><a
href="9ff160dfdf"><code>9ff160d</code></a>
dist: build</li>
<li><a
href="43208f1165"><code>43208f1</code></a>
deps: pnpm update</li>
<li><a
href="177fc8ba87"><code>177fc8b</code></a>
ci: run private cache tests when secrets are available</li>
<li><a
href="9bb3a15fdb"><code>9bb3a15</code></a>
deps: devenv update</li>
<li><a
href="be5295a636"><code>be5295a</code></a>
Merge pull request <a
href="https://redirect.github.com/cachix/cachix-action/issues/197">#197</a>
from cachix/dev-restructure</li>
<li><a
href="dbbedb8579"><code>dbbedb8</code></a>
ci: split build and test scripts</li>
<li><a
href="a3f805d988"><code>a3f805d</code></a>
ci: build once with devenv</li>
<li><a
href="c48cfdb2ec"><code>c48cfdb</code></a>
ci: switch out yarn</li>
<li><a
href="9af815036c"><code>9af8150</code></a>
dist: rebuild</li>
<li>Additional commits viewable in <a
href="https://github.com/cachix/cachix-action/compare/v15...v16">compare
view</a></li>
</ul>
</details>
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- `@dependabot ignore this major version` will close this PR and stop
Dependabot creating any more for this major version (unless you reopen
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</details>
After some time with the initial template and Discussions being created,
there are some improvements we should make to the Issue Triage template.
Most of these changes were discussed in #7012 and among helpers in the
Discord.
~~I've marked this as a Draft for now as I work with the helpers to
confirm how we want to approach a few of the outstanding changes, mostly
minor updates.~~
As always, you can test these out by [opening an Issue Triage Discussion
post on my
fork](https://github.com/taylrfnt/ghostty/discussions/new?category=issue-triage).
The helper team has been discussing some common issues we see with
Discussion submissions (missing info, duplicates, etc.), and pluie's
#6937 has been a huge step forward - this PR introduces a template for
the Issue Triage Discussion type.
The template has gone through a few revisions prior to this PR, but I am
certain there are probably a few places to be cleaned up. You can test
it out by [opening a new "Issue Triage" Discussion in my
fork](https://github.com/taylrfnt/ghostty/discussions/new?category=issue-triage).
~~Creating this as a draft for now, since I may not be able to respond
to any review comments in a timely manner.~~
