From 63cec9796758183a606187989ab601e6deceeee2 Mon Sep 17 00:00:00 2001
From: Rich Harris <rich.harris@vercel.com>
Date: Tue, 2 Jun 2026 13:01:20 -0400
Subject: [PATCH 1/5] chore: remove `{@const ...}` tags from template

---
 .../demo/src/routes/sverdle/+page.svelte       | 18 ++++++++++--------
 1 file changed, 10 insertions(+), 8 deletions(-)

diff --git a/packages/sv/src/create/templates/demo/src/routes/sverdle/+page.svelte b/packages/sv/src/create/templates/demo/src/routes/sverdle/+page.svelte
index 34f19eb8b..8b2800fdd 100644
--- a/packages/sv/src/create/templates/demo/src/routes/sverdle/+page.svelte
+++ b/packages/sv/src/create/templates/demo/src/routes/sverdle/+page.svelte
@@ -116,17 +116,19 @@
 
 	<div class="grid" class:playing={!won} class:shake onanimationend={() => (shake = false)}>
 		{#each Array.from(Array(6).keys()) as row (row)}
-			{@const current = row === i}
+			{const current = $derived(row === i)}
+
 			<h2 class="visually-hidden">Row {row + 1}</h2>
 			<div class="row" class:current>
 				{#each Array.from(Array(5).keys()) as column (column)}
-					{@const guess = current ? currentGuess : data.guesses[row]}
-					{@const answer = data.answers[row]?.[column]}
-					{@const value = guess?.[column] ?? ''}
-					{@const selected = current && column === guess.length}
-					{@const exact = answer === 'x'}
-					{@const close = answer === 'c'}
-					{@const missing = answer === '_'}
+					{const guess = $derived(current ? currentGuess : data.guesses[row])}
+					{const answer = $derived(data.answers[row]?.[column])}
+					{const value = $derived(guess?.[column] ?? '')}
+					{const selected = $derived(current && column === guess.length)}
+					{const exact = $derived(answer === 'x')}
+					{const close = $derived(answer === 'c')}
+					{const missing = $derived(answer === '_')}
+
 					<div class="letter" class:exact class:close class:missing class:selected>
 						{value}
 						<span class="visually-hidden">

From a4d6ce72e56035e26708476a9b9a313184631f9a Mon Sep 17 00:00:00 2001
From: jycouet <jycouet@gmail.com>
Date: Tue, 2 Jun 2026 21:09:18 +0200
Subject: [PATCH 2/5] bump desp for new syntax

---
 .changeset/demo-const-tags.md                 |   5 +
 package.json                                  |   6 +-
 packages/migrate/package.json                 |   2 +-
 packages/sv-utils/package.json                |   2 +-
 packages/sv/package.json                      |   2 +-
 packages/sv/src/addons/eslint.ts              |   2 +-
 packages/sv/src/addons/prettier.ts            |   2 +-
 .../tests/snapshots/create-only/package.json  |   2 +-
 .../create-with-all-addons/package.json       |   6 +-
 .../templates/demo/package.template.json      |   2 +-
 .../templates/library/package.template.json   |   2 +-
 .../templates/minimal/package.template.json   |   2 +-
 pnpm-lock.yaml                                | 152 +++++++++---------
 13 files changed, 96 insertions(+), 91 deletions(-)
 create mode 100644 .changeset/demo-const-tags.md

diff --git a/.changeset/demo-const-tags.md b/.changeset/demo-const-tags.md
new file mode 100644
index 000000000..df293f846
--- /dev/null
+++ b/.changeset/demo-const-tags.md
@@ -0,0 +1,5 @@
+---
+'sv': patch
+---
+
+chore(sv): demo template uses the new `{const ...}` declaration tags ([sveltejs/svelte#18282](https://github.com/sveltejs/svelte/pull/18282))
diff --git a/package.json b/package.json
index 185d9c51b..e2355cdf4 100644
--- a/package.json
+++ b/package.json
@@ -30,13 +30,13 @@
 		"@typescript/native-preview": "7.0.0-dev.20251212.1",
 		"@vitest/ui": "4.1.1",
 		"eslint": "^10.4.0",
-		"eslint-plugin-svelte": "^3.17.0",
+		"eslint-plugin-svelte": "^3.19.0",
 		"magic-string": "^0.30.21",
 		"prettier": "^3.8.1",
 		"prettier-plugin-packagejson": "^2.5.22",
-		"prettier-plugin-svelte": "^3.4.1",
+		"prettier-plugin-svelte": "^4.1.0",
 		"sv": "workspace:*",
-		"svelte": "^5.53.0",
+		"svelte": "^5.56.1",
 		"tsdown": "^0.21.7",
 		"typescript": "^6.0.0",
 		"typescript-eslint": "^8.58.1",
diff --git a/packages/migrate/package.json b/packages/migrate/package.json
index 30e45db6c..b66a60d88 100644
--- a/packages/migrate/package.json
+++ b/packages/migrate/package.json
@@ -43,7 +43,7 @@
 		"@types/node": "^20.14.8",
 		"@types/prompts": "^2.4.9",
 		"@types/semver": "^7.7.1",
-		"svelte": "^5.53.0"
+		"svelte": "^5.56.1"
 	},
 	"keywords": [
 		"migration",
diff --git a/packages/sv-utils/package.json b/packages/sv-utils/package.json
index 63e3dff42..b887df0b8 100644
--- a/packages/sv-utils/package.json
+++ b/packages/sv-utils/package.json
@@ -34,7 +34,7 @@
 		"semver": "^7.7.4",
 		"silver-fleece": "^1.2.1",
 		"smol-toml": "^1.5.2",
-		"svelte": "^5.53.0",
+		"svelte": "^5.56.1",
 		"yaml": "^2.8.2",
 		"zimmerframe": "^1.1.4"
 	},
diff --git a/packages/sv/package.json b/packages/sv/package.json
index 42ad4ce02..f95f5e13a 100644
--- a/packages/sv/package.json
+++ b/packages/sv/package.json
@@ -43,7 +43,7 @@
 		"gitignore-parser": "^0.0.2",
 		"ps-tree": "^1.2.0",
 		"sucrase": "^3.35.1",
-		"svelte": "^5.53.0",
+		"svelte": "^5.56.1",
 		"tar-fs": "^3.1.1",
 		"tiny-glob": "^0.2.9",
 		"tinyexec": "^1.0.2",
diff --git a/packages/sv/src/addons/eslint.ts b/packages/sv/src/addons/eslint.ts
index a7f353206..b3c6ae789 100644
--- a/packages/sv/src/addons/eslint.ts
+++ b/packages/sv/src/addons/eslint.ts
@@ -13,7 +13,7 @@ export default defineAddon({
 		const prettierInstalled = Boolean(dependencyVersion('prettier'));
 
 		sv.devDependency('eslint', ESLINT_VERSION);
-		sv.devDependency('eslint-plugin-svelte', '^3.17.0');
+		sv.devDependency('eslint-plugin-svelte', '^3.19.0');
 		sv.devDependency('globals', '^17.4.0');
 		sv.devDependency('@eslint/js', '^10.0.1');
 		sv.devDependency('@types/node', getNodeTypesVersion());
diff --git a/packages/sv/src/addons/prettier.ts b/packages/sv/src/addons/prettier.ts
index 59a18410c..957e4d0eb 100644
--- a/packages/sv/src/addons/prettier.ts
+++ b/packages/sv/src/addons/prettier.ts
@@ -13,7 +13,7 @@ export default defineAddon({
 		if (tailwindcssInstalled) sv.devDependency('prettier-plugin-tailwindcss', '^0.7.2');
 
 		sv.devDependency('prettier', '^3.8.1');
-		sv.devDependency('prettier-plugin-svelte', '^3.5.1');
+		sv.devDependency('prettier-plugin-svelte', '^4.1.0');
 
 		sv.file(
 			'.prettierignore',
diff --git a/packages/sv/src/cli/tests/snapshots/create-only/package.json b/packages/sv/src/cli/tests/snapshots/create-only/package.json
index 6fb97483a..06621428f 100644
--- a/packages/sv/src/cli/tests/snapshots/create-only/package.json
+++ b/packages/sv/src/cli/tests/snapshots/create-only/package.json
@@ -15,7 +15,7 @@
 		"@sveltejs/adapter-auto": "^7.0.1",
 		"@sveltejs/kit": "^2.57.0",
 		"@sveltejs/vite-plugin-svelte": "^7.0.0",
-		"svelte": "^5.55.2",
+		"svelte": "^5.56.1",
 		"svelte-check": "^4.4.6",
 		"typescript": "^6.0.2",
 		"vite": "^8.0.7"
diff --git a/packages/sv/src/cli/tests/snapshots/create-with-all-addons/package.json b/packages/sv/src/cli/tests/snapshots/create-with-all-addons/package.json
index 65dd572b6..bfe34a066 100644
--- a/packages/sv/src/cli/tests/snapshots/create-with-all-addons/package.json
+++ b/packages/sv/src/cli/tests/snapshots/create-with-all-addons/package.json
@@ -39,14 +39,14 @@
 		"drizzle-orm": "^0.45.2",
 		"eslint": "^10.4.0",
 		"eslint-config-prettier": "^10.1.8",
-		"eslint-plugin-svelte": "^3.17.0",
+		"eslint-plugin-svelte": "^3.19.0",
 		"globals": "^17.4.0",
 		"mdsvex": "^0.12.7",
 		"playwright": "^1.60.0",
 		"prettier": "^3.8.1",
-		"prettier-plugin-svelte": "^3.5.1",
+		"prettier-plugin-svelte": "^4.1.0",
 		"prettier-plugin-tailwindcss": "^0.7.2",
-		"svelte": "^5.55.2",
+		"svelte": "^5.56.1",
 		"svelte-check": "^4.4.6",
 		"tailwindcss": "^4.2.2",
 		"typescript": "^6.0.2",
diff --git a/packages/sv/src/create/templates/demo/package.template.json b/packages/sv/src/create/templates/demo/package.template.json
index ae4ef0ac2..b015c2727 100644
--- a/packages/sv/src/create/templates/demo/package.template.json
+++ b/packages/sv/src/create/templates/demo/package.template.json
@@ -15,7 +15,7 @@
 		"@sveltejs/adapter-auto": "^7.0.1",
 		"@sveltejs/kit": "^2.57.0",
 		"@sveltejs/vite-plugin-svelte": "^7.0.0",
-		"svelte": "^5.55.2",
+		"svelte": "^5.56.1",
 		"vite": "^8.0.7"
 	}
 }
diff --git a/packages/sv/src/create/templates/library/package.template.json b/packages/sv/src/create/templates/library/package.template.json
index ab2872037..95c1cd4aa 100644
--- a/packages/sv/src/create/templates/library/package.template.json
+++ b/packages/sv/src/create/templates/library/package.template.json
@@ -28,7 +28,7 @@
 		"@sveltejs/package": "^2.5.7",
 		"@sveltejs/vite-plugin-svelte": "^7.0.0",
 		"publint": "^0.3.18",
-		"svelte": "^5.55.2",
+		"svelte": "^5.56.1",
 		"typescript": "^6.0.2",
 		"vite": "^8.0.7"
 	},
diff --git a/packages/sv/src/create/templates/minimal/package.template.json b/packages/sv/src/create/templates/minimal/package.template.json
index 9a30d72e1..690eb69a4 100644
--- a/packages/sv/src/create/templates/minimal/package.template.json
+++ b/packages/sv/src/create/templates/minimal/package.template.json
@@ -13,7 +13,7 @@
 		"@sveltejs/adapter-auto": "^7.0.1",
 		"@sveltejs/kit": "^2.57.0",
 		"@sveltejs/vite-plugin-svelte": "^7.0.0",
-		"svelte": "^5.55.2",
+		"svelte": "^5.56.1",
 		"vite": "^8.0.7"
 	}
 }
diff --git a/pnpm-lock.yaml b/pnpm-lock.yaml
index ebde45b8f..7d46a8d31 100644
--- a/pnpm-lock.yaml
+++ b/pnpm-lock.yaml
@@ -16,13 +16,13 @@ importers:
         version: 1.60.0
       '@sveltejs/eslint-config':
         specifier: ^9.0.0
-        version: 9.0.0(@eslint/js@10.0.1(eslint@10.4.0))(@stylistic/eslint-plugin-js@4.4.1(eslint@10.4.0))(eslint-config-prettier@10.1.8(eslint@10.4.0))(eslint-plugin-n@17.24.0(eslint@10.4.0)(typescript@6.0.2))(eslint-plugin-svelte@3.17.0(eslint@10.4.0)(svelte@5.54.0))(eslint@10.4.0)(typescript-eslint@8.58.1(eslint@10.4.0)(typescript@6.0.2))(typescript@6.0.2)
+        version: 9.0.0(@eslint/js@10.0.1(eslint@10.4.0))(@stylistic/eslint-plugin-js@4.4.1(eslint@10.4.0))(eslint-config-prettier@10.1.8(eslint@10.4.0))(eslint-plugin-n@17.24.0(eslint@10.4.0)(typescript@6.0.2))(eslint-plugin-svelte@3.19.0(eslint@10.4.0)(svelte@5.56.1(@typescript-eslint/types@8.58.1)))(eslint@10.4.0)(typescript-eslint@8.58.1(eslint@10.4.0)(typescript@6.0.2))(typescript@6.0.2)
       '@svitejs/changesets-changelog-github-compact':
         specifier: ^1.2.0
         version: 1.2.0
       '@trivago/prettier-plugin-sort-imports':
         specifier: ^6.0.2
-        version: 6.0.2(prettier-plugin-svelte@3.5.1(prettier@3.8.1)(svelte@5.54.0))(prettier@3.8.1)(svelte@5.54.0)
+        version: 6.0.2(prettier-plugin-svelte@4.1.0(prettier@3.8.1)(svelte@5.56.1(@typescript-eslint/types@8.58.1)))(prettier@3.8.1)(svelte@5.56.1(@typescript-eslint/types@8.58.1))
       '@types/node':
         specifier: ^20.19.30
         version: 20.19.37
@@ -36,8 +36,8 @@ importers:
         specifier: ^10.4.0
         version: 10.4.0
       eslint-plugin-svelte:
-        specifier: ^3.17.0
-        version: 3.17.0(eslint@10.4.0)(svelte@5.54.0)
+        specifier: ^3.19.0
+        version: 3.19.0(eslint@10.4.0)(svelte@5.56.1(@typescript-eslint/types@8.58.1))
       magic-string:
         specifier: ^0.30.21
         version: 0.30.21
@@ -48,14 +48,14 @@ importers:
         specifier: ^2.5.22
         version: 2.5.22(prettier@3.8.1)
       prettier-plugin-svelte:
-        specifier: ^3.4.1
-        version: 3.5.1(prettier@3.8.1)(svelte@5.54.0)
+        specifier: ^4.1.0
+        version: 4.1.0(prettier@3.8.1)(svelte@5.56.1(@typescript-eslint/types@8.58.1))
       sv:
         specifier: workspace:*
         version: link:packages/sv
       svelte:
-        specifier: ^5.53.0
-        version: 5.54.0
+        specifier: ^5.56.1
+        version: 5.56.1(@typescript-eslint/types@8.58.1)
       tsdown:
         specifier: ^0.21.7
         version: 0.21.7(@typescript/native-preview@7.0.0-dev.20251212.1)(typescript@6.0.2)
@@ -112,8 +112,8 @@ importers:
         specifier: ^7.7.1
         version: 7.7.1
       svelte:
-        specifier: ^5.53.0
-        version: 5.54.0
+        specifier: ^5.56.1
+        version: 5.56.1(@typescript-eslint/types@8.58.1)
 
   packages/sv:
     dependencies:
@@ -152,8 +152,8 @@ importers:
         specifier: ^3.35.1
         version: 3.35.1
       svelte:
-        specifier: ^5.53.0
-        version: 5.54.0
+        specifier: ^5.56.1
+        version: 5.56.1(@typescript-eslint/types@8.58.1)
       tar-fs:
         specifier: ^3.1.1
         version: 3.1.2
@@ -197,8 +197,8 @@ importers:
         specifier: ^1.5.2
         version: 1.6.0
       svelte:
-        specifier: ^5.53.0
-        version: 5.54.0
+        specifier: ^5.56.1
+        version: 5.56.1(@typescript-eslint/types@8.58.1)
       yaml:
         specifier: ^2.8.2
         version: 2.8.2
@@ -678,8 +678,8 @@ packages:
     peerDependencies:
       eslint: '>=9.0.0'
 
-  '@sveltejs/acorn-typescript@1.0.9':
-    resolution: {integrity: sha512-lVJX6qEgs/4DOcRTpo56tmKzVPtoWAaVbL4hfO7t7NVwl9AAXzQR6cihesW1BmNMPl+bK6dreu2sOKBP2Q9CIA==}
+  '@sveltejs/acorn-typescript@1.0.10':
+    resolution: {integrity: sha512-4WfKk68eTih+MiJD4fSbxN7E8kVBmTMPWHUPYjvl2N0rMs53YLTT8/YjKU5Dtnz5LqDjl7LEw4U7lXR2W3J5WA==}
     peerDependencies:
       acorn: ^8.9.0
 
@@ -1122,8 +1122,8 @@ packages:
     resolution: {integrity: sha512-qE3Veg1YXzGHQhlA6jzebZN2qVf6NX+A7m7qlhCGG30dJixrAQhYOsJjsnBjJkCSmuOPpCk30145fr8FV0bzog==}
     engines: {node: ^12.20.0 || ^14.13.1 || >=16.0.0}
 
-  devalue@5.6.4:
-    resolution: {integrity: sha512-Gp6rDldRsFh/7XuouDbxMH3Mx8GMCcgzIb1pDTvNyn8pZGQ22u+Wa+lGV9dQCltFQ7uVw0MhRyb8XDskNFOReA==}
+  devalue@5.8.1:
+    resolution: {integrity: sha512-4CXDYRBGqN+57wVJkuXBYmpAVUSg3L6JAQa/DFqm238G73E1wuyc/JhGQJzN7vUf/CMphYau2zXbfWzDR5aTEw==}
 
   dir-glob@3.0.1:
     resolution: {integrity: sha512-WkrWp9GR4KXfKGYzOLmTuGVi1UWFfws377n9cc55/tb6DuqyF6pcQ5AbiHEshaDpY9v6oaSr2XCDidGmMwdzIA==}
@@ -1191,8 +1191,8 @@ packages:
     peerDependencies:
       eslint: '>=8.23.0'
 
-  eslint-plugin-svelte@3.17.0:
-    resolution: {integrity: sha512-sF6wgd5FLS2P8CCaOy2HdYYYEcZ6TwL251dLHUkNmtLnWECk1Dwc+j6VeulmmnFxr7Xs0WNtjweOA+bJ0PnaFw==}
+  eslint-plugin-svelte@3.19.0:
+    resolution: {integrity: sha512-t3rNaZeXz4d2gG4uJyMEYfJCFKf22+SWbSizIIXIWKu4wM+XPLiMWuSSr/C5821JmFeN9ogK+eExbG+z+twyxw==}
     engines: {node: ^18.18.0 || ^20.9.0 || >=21.1.0}
     peerDependencies:
       eslint: ^8.57.1 || ^9.0.0 || ^10.0.0
@@ -1251,6 +1251,14 @@ packages:
     resolution: {integrity: sha512-Ap6G0WQwcU/LHsvLwON1fAQX9Zp0A2Y6Y/cJBl9r/JbW90Zyg4/zbG6zzKa2OTALELarYHmKu0GhpM5EO+7T0g==}
     engines: {node: '>=0.10'}
 
+  esrap@2.2.10:
+    resolution: {integrity: sha512-HUTyxhhAQBl1hhsyLlHD1sh9xF6o6vaejzLxK5sge+LzrdEflQPQaNhC+n98d+OVB8v3LCCF+y80x/4bACjjJw==}
+    peerDependencies:
+      '@typescript-eslint/types': ^8.2.0
+    peerDependenciesMeta:
+      '@typescript-eslint/types':
+        optional: true
+
   esrap@2.2.4:
     resolution: {integrity: sha512-suICpxAmZ9A8bzJjEl/+rLJiDKC0X4gYWUxT6URAWBLvlXmtbZd5ySMu/N2ZGEtMCAmflUDPSehrP9BQcsGcSg==}
 
@@ -1645,11 +1653,6 @@ packages:
   mz@2.7.0:
     resolution: {integrity: sha512-z81GNO7nnYMEhrGh9LeymoE4+Yr0Wn5McHIZMK5cfQCl+NDX08sCZgUc9/6MHni9IWuFLm1Z3HTCXu2z9fN62Q==}
 
-  nanoid@3.3.11:
-    resolution: {integrity: sha512-N8SpfPUnUp1bK+PMYW8qSWdl9U+wwNWI4QKxOYDy9JAro3WMX7p2OeVRF9v+347pnakNevPmiHhNmZ2HbFA76w==}
-    engines: {node: ^10 || ^12 || ^13.7 || ^14 || >=15.0.1}
-    hasBin: true
-
   nanoid@3.3.12:
     resolution: {integrity: sha512-ZB9RH/39qpq5Vu6Y+NmUaFhQR6pp+M2Xt76XBnEwDaGcVAqhlvxrl3B2bKS5D3NH3QR76v3aSrKaF/Kiy7lEtQ==}
     engines: {node: ^10 || ^12 || ^13.7 || ^14 || >=15.0.1}
@@ -1810,10 +1813,6 @@ packages:
     resolution: {integrity: sha512-SoSL4+OSEtR99LHFZQiJLkT59C5B1amGO1NzTwj7TT1qCUgUO6hxOvzkOYxD+vMrXBM3XJIKzokoERdqQq/Zmg==}
     engines: {node: ^10 || ^12 || >=14}
 
-  postcss@8.5.8:
-    resolution: {integrity: sha512-OW/rX8O/jXnm82Ey1k44pObPtdblfiuWnrd8X7GJ7emImCOstunGbXUpp7HdBrFQX6rJzn3sPT397Wp5aCwCHg==}
-    engines: {node: ^10 || ^12 || >=14}
-
   prelude-ls@1.2.1:
     resolution: {integrity: sha512-vkcDPrRZo1QZLbn5RLGPpg/WmIQ65qoWWhcGKf/b5eplkkarX0m9z8ppCat4mlOqUsWpyNuYgO3VRyrYHSzX5g==}
     engines: {node: '>= 0.8.0'}
@@ -1826,11 +1825,12 @@ packages:
       prettier:
         optional: true
 
-  prettier-plugin-svelte@3.5.1:
-    resolution: {integrity: sha512-65+fr5+cgIKWKiqM1Doum4uX6bY8iFCdztvvp2RcF+AJoieaw9kJOFMNcJo/bkmKYsxFaM9OsVZK/gWauG/5mg==}
+  prettier-plugin-svelte@4.1.0:
+    resolution: {integrity: sha512-YZkhA2Q9oOerFFG9tq+2f98WYT7Z2JgrybJrAyrB78jpsH9i/DdgplXemehuFPgsldetFNCcR/yCcYlDjPy94Q==}
+    engines: {node: '>=20'}
     peerDependencies:
       prettier: ^3.0.0
-      svelte: ^3.2.0 || ^4.0.0-next.0 || ^5.0.0-next.0
+      svelte: ^5.0.0
 
   prettier@2.8.8:
     resolution: {integrity: sha512-tdN8qQGvNjw4CHbY+XXk0JgCXn9QiF21a55rBe5LJAU+kDyC4WQn4+awm2Xfk2lQMk5fKup9XgzTZtGkjBdP9Q==}
@@ -2002,17 +2002,17 @@ packages:
     engines: {node: '>=16 || 14 >=14.17'}
     hasBin: true
 
-  svelte-eslint-parser@1.6.0:
-    resolution: {integrity: sha512-qoB1ehychT6OxEtQAqc/guSqLS20SlA53Uijl7x375s8nlUT0lb9ol/gzraEEatQwsyPTJo87s2CmKL9Xab+Uw==}
-    engines: {node: ^18.18.0 || ^20.9.0 || >=21.1.0, pnpm: 10.30.3}
+  svelte-eslint-parser@1.7.0:
+    resolution: {integrity: sha512-TU3DQx7IjUrrxKbET/U639xofp044xLXGGvFaLH9PKQOY5g5iRtmYy2rZB7gOeGRRTP7255AE8fUtIwsp/yOjQ==}
+    engines: {node: ^18.18.0 || ^20.9.0 || >=21.1.0, pnpm: 10.34.1}
     peerDependencies:
       svelte: ^3.37.0 || ^4.0.0 || ^5.0.0
     peerDependenciesMeta:
       svelte:
         optional: true
 
-  svelte@5.54.0:
-    resolution: {integrity: sha512-TTDxwYnHkova6Wsyj1PGt9TByuWqvMoeY1bQiuAf2DM/JeDSMw7FjRKzk8K/5mJ99vGOKhbCqTDpyAKwjp4igg==}
+  svelte@5.56.1:
+    resolution: {integrity: sha512-eArsJmvl3xZVuTYD852PzIEdg2wgDdIZ1NEsIPbzAukHwi284B18No4nK2rCO9AwsWUDza4Cjvmoa4HaojTl5g==}
     engines: {node: '>=18'}
 
   tapable@2.3.3:
@@ -2794,18 +2794,18 @@ snapshots:
       eslint-visitor-keys: 4.2.1
       espree: 10.4.0
 
-  '@sveltejs/acorn-typescript@1.0.9(acorn@8.16.0)':
+  '@sveltejs/acorn-typescript@1.0.10(acorn@8.16.0)':
     dependencies:
       acorn: 8.16.0
 
-  '@sveltejs/eslint-config@9.0.0(@eslint/js@10.0.1(eslint@10.4.0))(@stylistic/eslint-plugin-js@4.4.1(eslint@10.4.0))(eslint-config-prettier@10.1.8(eslint@10.4.0))(eslint-plugin-n@17.24.0(eslint@10.4.0)(typescript@6.0.2))(eslint-plugin-svelte@3.17.0(eslint@10.4.0)(svelte@5.54.0))(eslint@10.4.0)(typescript-eslint@8.58.1(eslint@10.4.0)(typescript@6.0.2))(typescript@6.0.2)':
+  '@sveltejs/eslint-config@9.0.0(@eslint/js@10.0.1(eslint@10.4.0))(@stylistic/eslint-plugin-js@4.4.1(eslint@10.4.0))(eslint-config-prettier@10.1.8(eslint@10.4.0))(eslint-plugin-n@17.24.0(eslint@10.4.0)(typescript@6.0.2))(eslint-plugin-svelte@3.19.0(eslint@10.4.0)(svelte@5.56.1(@typescript-eslint/types@8.58.1)))(eslint@10.4.0)(typescript-eslint@8.58.1(eslint@10.4.0)(typescript@6.0.2))(typescript@6.0.2)':
     dependencies:
       '@eslint/js': 10.0.1(eslint@10.4.0)
       '@stylistic/eslint-plugin-js': 4.4.1(eslint@10.4.0)
       eslint: 10.4.0
       eslint-config-prettier: 10.1.8(eslint@10.4.0)
       eslint-plugin-n: 17.24.0(eslint@10.4.0)(typescript@6.0.2)
-      eslint-plugin-svelte: 3.17.0(eslint@10.4.0)(svelte@5.54.0)
+      eslint-plugin-svelte: 3.19.0(eslint@10.4.0)(svelte@5.56.1(@typescript-eslint/types@8.58.1))
       globals: 17.4.0
       typescript: 6.0.2
       typescript-eslint: 8.58.1(eslint@10.4.0)(typescript@6.0.2)
@@ -2817,7 +2817,7 @@ snapshots:
     transitivePeerDependencies:
       - encoding
 
-  '@trivago/prettier-plugin-sort-imports@6.0.2(prettier-plugin-svelte@3.5.1(prettier@3.8.1)(svelte@5.54.0))(prettier@3.8.1)(svelte@5.54.0)':
+  '@trivago/prettier-plugin-sort-imports@6.0.2(prettier-plugin-svelte@4.1.0(prettier@3.8.1)(svelte@5.56.1(@typescript-eslint/types@8.58.1)))(prettier@3.8.1)(svelte@5.56.1(@typescript-eslint/types@8.58.1))':
     dependencies:
       '@babel/generator': 7.29.1
       '@babel/parser': 7.29.2
@@ -2829,8 +2829,8 @@ snapshots:
       parse-imports-exports: 0.2.4
       prettier: 3.8.1
     optionalDependencies:
-      prettier-plugin-svelte: 3.5.1(prettier@3.8.1)(svelte@5.54.0)
-      svelte: 5.54.0
+      prettier-plugin-svelte: 4.1.0(prettier@3.8.1)(svelte@5.56.1(@typescript-eslint/types@8.58.1))
+      svelte: 5.56.1(@typescript-eslint/types@8.58.1)
     transitivePeerDependencies:
       - supports-color
 
@@ -3215,7 +3215,7 @@ snapshots:
 
   detect-newline@4.0.1: {}
 
-  devalue@5.6.4: {}
+  devalue@5.8.1: {}
 
   dir-glob@3.0.1:
     dependencies:
@@ -3278,7 +3278,7 @@ snapshots:
     transitivePeerDependencies:
       - typescript
 
-  eslint-plugin-svelte@3.17.0(eslint@10.4.0)(svelte@5.54.0):
+  eslint-plugin-svelte@3.19.0(eslint@10.4.0)(svelte@5.56.1(@typescript-eslint/types@8.58.1)):
     dependencies:
       '@eslint-community/eslint-utils': 4.9.1(eslint@10.4.0)
       '@jridgewell/sourcemap-codec': 1.5.5
@@ -3286,13 +3286,13 @@ snapshots:
       esutils: 2.0.3
       globals: 16.5.0
       known-css-properties: 0.37.0
-      postcss: 8.5.8
-      postcss-load-config: 3.1.4(postcss@8.5.8)
-      postcss-safe-parser: 7.0.1(postcss@8.5.8)
-      semver: 7.7.4
-      svelte-eslint-parser: 1.6.0(svelte@5.54.0)
+      postcss: 8.5.14
+      postcss-load-config: 3.1.4(postcss@8.5.14)
+      postcss-safe-parser: 7.0.1(postcss@8.5.14)
+      semver: 7.8.0
+      svelte-eslint-parser: 1.7.0(svelte@5.56.1(@typescript-eslint/types@8.58.1))
     optionalDependencies:
-      svelte: 5.54.0
+      svelte: 5.56.1(@typescript-eslint/types@8.58.1)
     transitivePeerDependencies:
       - ts-node
 
@@ -3369,6 +3369,12 @@ snapshots:
     dependencies:
       estraverse: 5.3.0
 
+  esrap@2.2.10(@typescript-eslint/types@8.58.1):
+    dependencies:
+      '@jridgewell/sourcemap-codec': 1.5.5
+    optionalDependencies:
+      '@typescript-eslint/types': 8.58.1
+
   esrap@2.2.4:
     dependencies:
       '@jridgewell/sourcemap-codec': 1.5.5
@@ -3702,8 +3708,6 @@ snapshots:
       object-assign: 4.1.1
       thenify-all: 1.6.0
 
-  nanoid@3.3.11: {}
-
   nanoid@3.3.12: {}
 
   natural-compare@1.4.0: {}
@@ -3801,20 +3805,20 @@ snapshots:
     optionalDependencies:
       fsevents: 2.3.2
 
-  postcss-load-config@3.1.4(postcss@8.5.8):
+  postcss-load-config@3.1.4(postcss@8.5.14):
     dependencies:
       lilconfig: 2.1.0
       yaml: 1.10.2
     optionalDependencies:
-      postcss: 8.5.8
+      postcss: 8.5.14
 
-  postcss-safe-parser@7.0.1(postcss@8.5.8):
+  postcss-safe-parser@7.0.1(postcss@8.5.14):
     dependencies:
-      postcss: 8.5.8
+      postcss: 8.5.14
 
-  postcss-scss@4.0.9(postcss@8.5.8):
+  postcss-scss@4.0.9(postcss@8.5.14):
     dependencies:
-      postcss: 8.5.8
+      postcss: 8.5.14
 
   postcss-selector-parser@7.1.1:
     dependencies:
@@ -3827,12 +3831,6 @@ snapshots:
       picocolors: 1.1.1
       source-map-js: 1.2.1
 
-  postcss@8.5.8:
-    dependencies:
-      nanoid: 3.3.11
-      picocolors: 1.1.1
-      source-map-js: 1.2.1
-
   prelude-ls@1.2.1: {}
 
   prettier-plugin-packagejson@2.5.22(prettier@3.8.1):
@@ -3841,10 +3839,10 @@ snapshots:
     optionalDependencies:
       prettier: 3.8.1
 
-  prettier-plugin-svelte@3.5.1(prettier@3.8.1)(svelte@5.54.0):
+  prettier-plugin-svelte@4.1.0(prettier@3.8.1)(svelte@5.56.1(@typescript-eslint/types@8.58.1)):
     dependencies:
       prettier: 3.8.1
-      svelte: 5.54.0
+      svelte: 5.56.1(@typescript-eslint/types@8.58.1)
 
   prettier@2.8.8: {}
 
@@ -4036,36 +4034,38 @@ snapshots:
       tinyglobby: 0.2.15
       ts-interface-checker: 0.1.13
 
-  svelte-eslint-parser@1.6.0(svelte@5.54.0):
+  svelte-eslint-parser@1.7.0(svelte@5.56.1(@typescript-eslint/types@8.58.1)):
     dependencies:
       eslint-scope: 8.4.0
       eslint-visitor-keys: 4.2.1
       espree: 10.4.0
-      postcss: 8.5.8
-      postcss-scss: 4.0.9(postcss@8.5.8)
+      postcss: 8.5.14
+      postcss-scss: 4.0.9(postcss@8.5.14)
       postcss-selector-parser: 7.1.1
-      semver: 7.7.4
+      semver: 7.8.0
     optionalDependencies:
-      svelte: 5.54.0
+      svelte: 5.56.1(@typescript-eslint/types@8.58.1)
 
-  svelte@5.54.0:
+  svelte@5.56.1(@typescript-eslint/types@8.58.1):
     dependencies:
       '@jridgewell/remapping': 2.3.5
       '@jridgewell/sourcemap-codec': 1.5.5
-      '@sveltejs/acorn-typescript': 1.0.9(acorn@8.16.0)
+      '@sveltejs/acorn-typescript': 1.0.10(acorn@8.16.0)
       '@types/estree': 1.0.8
       '@types/trusted-types': 2.0.7
       acorn: 8.16.0
       aria-query: 5.3.1
       axobject-query: 4.1.0
       clsx: 2.1.1
-      devalue: 5.6.4
+      devalue: 5.8.1
       esm-env: 1.2.2
-      esrap: 2.2.4
+      esrap: 2.2.10(@typescript-eslint/types@8.58.1)
       is-reference: 3.0.3
       locate-character: 3.0.0
       magic-string: 0.30.21
       zimmerframe: 1.1.4
+    transitivePeerDependencies:
+      - '@typescript-eslint/types'
 
   tapable@2.3.3: {}
 

From c849991b76792fe3ee53907c9435595084d5b39f Mon Sep 17 00:00:00 2001
From: jycouet <jycouet@gmail.com>
Date: Wed, 3 Jun 2026 08:25:22 +0200
Subject: [PATCH 3/5] chore: nicer logs

---
 packages/sv/src/cli/tests/cli.ts      |  7 ++++++-
 packages/sv/src/create/tests/check.ts | 14 +++++++++++---
 packages/sv/src/pnpm-install-error.ts | 11 +++++++++++
 packages/sv/src/testing.ts            |  9 ++++++++-
 4 files changed, 36 insertions(+), 5 deletions(-)
 create mode 100644 packages/sv/src/pnpm-install-error.ts

diff --git a/packages/sv/src/cli/tests/cli.ts b/packages/sv/src/cli/tests/cli.ts
index 5c2fe109a..eb1f24501 100644
--- a/packages/sv/src/cli/tests/cli.ts
+++ b/packages/sv/src/cli/tests/cli.ts
@@ -4,6 +4,7 @@ import path from 'node:path';
 import process from 'node:process';
 import { exec } from 'tinyexec';
 import { beforeAll, describe, expect, it } from 'vitest';
+import { pnpmInstallErrorMessage } from '../../pnpm-install-error.ts';
 
 const monoRepoPath = path.resolve(__dirname, '..', '..', '..', '..', '..');
 const svBinPath = path.resolve(monoRepoPath, 'packages', 'sv', 'dist', 'bin.mjs');
@@ -129,9 +130,13 @@ describe('cli', () => {
 			}
 
 			if (projectName === 'create-with-all-addons' && process.platform !== 'win32') {
-				await exec('pnpm', ['install', '--no-frozen-lockfile'], {
+				const installResult = await exec('pnpm', ['install', '--no-frozen-lockfile'], {
 					nodeOptions: { stdio: 'pipe', cwd: testOutputPath }
 				});
+				expect(
+					installResult.exitCode,
+					pnpmInstallErrorMessage(testOutputPath, installResult.stdout, installResult.stderr)
+				).toBe(0);
 				await exec('pnpm', ['build'], {
 					nodeOptions: { stdio: 'pipe', cwd: testOutputPath }
 				});
diff --git a/packages/sv/src/create/tests/check.ts b/packages/sv/src/create/tests/check.ts
index c214a375b..f56a80b48 100644
--- a/packages/sv/src/create/tests/check.ts
+++ b/packages/sv/src/create/tests/check.ts
@@ -5,6 +5,7 @@ import { fileURLToPath } from 'node:url';
 import { promisify } from 'node:util';
 import { beforeAll, describe, expect, test } from 'vitest';
 import { add, officialAddons } from '../../../../sv/src/index.ts';
+import { pnpmInstallErrorMessage } from '../../pnpm-install-error.ts';
 import { type LanguageType, type TemplateType, create } from '../index.ts';
 
 // Resolve the given path relative to the current file
@@ -22,9 +23,16 @@ fs.writeFileSync(path.join(test_workspace_dir, 'pnpm-workspace.yaml'), 'packages
 const exec_async = promisify(exec);
 
 beforeAll(async () => {
-	await exec_async('pnpm install --no-frozen-lockfile', {
-		cwd: test_workspace_dir
-	});
+	try {
+		await exec_async('pnpm install --no-frozen-lockfile', {
+			cwd: test_workspace_dir
+		});
+	} catch (e) {
+		const err = e as { stdout?: string; stderr?: string };
+		throw new Error(pnpmInstallErrorMessage(test_workspace_dir, err.stdout, err.stderr), {
+			cause: e
+		});
+	}
 }, 60000);
 
 /**
diff --git a/packages/sv/src/pnpm-install-error.ts b/packages/sv/src/pnpm-install-error.ts
new file mode 100644
index 000000000..a83ed98b1
--- /dev/null
+++ b/packages/sv/src/pnpm-install-error.ts
@@ -0,0 +1,11 @@
+/** Readable error for a failed test `pnpm install`, surfacing pnpm's output. */
+export function pnpmInstallErrorMessage(
+	cwd: string,
+	stdout: string | Buffer = '',
+	stderr: string | Buffer = ''
+): string {
+	const output = `${stdout}${stderr}`;
+	const tooRecent = output.includes('ERR_PNPM_NO_MATURE_MATCHING_VERSION');
+	const hint = tooRecent ? ' (a dependency was published too recently, minimumReleaseAge)' : '';
+	return `pnpm install failed in ${cwd}${hint}\n\n${output}`;
+}
diff --git a/packages/sv/src/testing.ts b/packages/sv/src/testing.ts
index 20d6f2ab8..9da606498 100644
--- a/packages/sv/src/testing.ts
+++ b/packages/sv/src/testing.ts
@@ -9,6 +9,7 @@ import type { TestProject } from 'vitest/node';
 import { add, type AddonMap, type OptionMap } from './core/engine.ts';
 import { addPnpmAllowBuilds } from './core/package-manager.ts';
 import { create } from './create/index.ts';
+import { pnpmInstallErrorMessage } from './pnpm-install-error.ts';
 
 export type ProjectVariant = 'kit-js' | 'kit-ts' | 'vite-js' | 'vite-ts';
 export const variants: ProjectVariant[] = ['kit-js', 'kit-ts', 'vite-js', 'vite-ts'];
@@ -364,7 +365,13 @@ export function createSetupTest(
 				addPnpmAllowBuilds(cwd, 'pnpm', 'esbuild');
 			}
 
-			execSync('pnpm install', { cwd: path.resolve(cwd, testName), stdio: 'pipe' });
+			const installDir = path.resolve(cwd, testName);
+			try {
+				execSync('pnpm install', { cwd: installDir, stdio: 'pipe' });
+			} catch (e) {
+				const err = e as { stdout?: Buffer; stderr?: Buffer };
+				throw new Error(pnpmInstallErrorMessage(installDir, err.stdout, err.stderr), { cause: e });
+			}
 		});
 
 		beforeEach<Fixtures>(async (ctx) => {

From aa7c4a872e6e0e60ef577500f7430ca1e5448b6d Mon Sep 17 00:00:00 2001
From: jycouet <jycouet@gmail.com>
Date: Wed, 3 Jun 2026 11:20:30 +0200
Subject: [PATCH 4/5] cleanup

---
 packages/sv/src/cli/tests/cli.ts      |  3 +--
 packages/sv/src/create/tests/check.ts | 22 ++++++++++------------
 packages/sv/src/pnpm-install-error.ts | 11 -----------
 packages/sv/src/testing.ts            | 13 +++++++------
 4 files changed, 18 insertions(+), 31 deletions(-)
 delete mode 100644 packages/sv/src/pnpm-install-error.ts

diff --git a/packages/sv/src/cli/tests/cli.ts b/packages/sv/src/cli/tests/cli.ts
index eb1f24501..8908fd040 100644
--- a/packages/sv/src/cli/tests/cli.ts
+++ b/packages/sv/src/cli/tests/cli.ts
@@ -4,7 +4,6 @@ import path from 'node:path';
 import process from 'node:process';
 import { exec } from 'tinyexec';
 import { beforeAll, describe, expect, it } from 'vitest';
-import { pnpmInstallErrorMessage } from '../../pnpm-install-error.ts';
 
 const monoRepoPath = path.resolve(__dirname, '..', '..', '..', '..', '..');
 const svBinPath = path.resolve(monoRepoPath, 'packages', 'sv', 'dist', 'bin.mjs');
@@ -135,7 +134,7 @@ describe('cli', () => {
 				});
 				expect(
 					installResult.exitCode,
-					pnpmInstallErrorMessage(testOutputPath, installResult.stdout, installResult.stderr)
+					`pnpm install failed:\n  stdout: ${installResult.stdout}\n  stderr: ${installResult.stderr}`
 				).toBe(0);
 				await exec('pnpm', ['build'], {
 					nodeOptions: { stdio: 'pipe', cwd: testOutputPath }
diff --git a/packages/sv/src/create/tests/check.ts b/packages/sv/src/create/tests/check.ts
index f56a80b48..455a2a3a9 100644
--- a/packages/sv/src/create/tests/check.ts
+++ b/packages/sv/src/create/tests/check.ts
@@ -1,11 +1,11 @@
-import { type PromiseWithChild, exec } from 'node:child_process';
+import { type PromiseWithChild, exec as nodeExec } from 'node:child_process';
 import fs from 'node:fs';
 import path from 'node:path';
 import { fileURLToPath } from 'node:url';
 import { promisify } from 'node:util';
+import { exec } from 'tinyexec';
 import { beforeAll, describe, expect, test } from 'vitest';
 import { add, officialAddons } from '../../../../sv/src/index.ts';
-import { pnpmInstallErrorMessage } from '../../pnpm-install-error.ts';
 import { type LanguageType, type TemplateType, create } from '../index.ts';
 
 // Resolve the given path relative to the current file
@@ -20,18 +20,16 @@ fs.mkdirSync(test_workspace_dir, { recursive: true });
 
 fs.writeFileSync(path.join(test_workspace_dir, 'pnpm-workspace.yaml'), 'packages:\n  - ./*\n');
 
-const exec_async = promisify(exec);
+const exec_async = promisify(nodeExec);
 
 beforeAll(async () => {
-	try {
-		await exec_async('pnpm install --no-frozen-lockfile', {
-			cwd: test_workspace_dir
-		});
-	} catch (e) {
-		const err = e as { stdout?: string; stderr?: string };
-		throw new Error(pnpmInstallErrorMessage(test_workspace_dir, err.stdout, err.stderr), {
-			cause: e
-		});
+	const install = await exec('pnpm', ['install', '--no-frozen-lockfile'], {
+		nodeOptions: { cwd: test_workspace_dir, stdio: 'pipe' }
+	});
+	if (install.exitCode !== 0) {
+		throw new Error(
+			`pnpm install failed in ${test_workspace_dir}\n  stdout: ${install.stdout}\n  stderr: ${install.stderr}`
+		);
 	}
 }, 60000);
 
diff --git a/packages/sv/src/pnpm-install-error.ts b/packages/sv/src/pnpm-install-error.ts
deleted file mode 100644
index a83ed98b1..000000000
--- a/packages/sv/src/pnpm-install-error.ts
+++ /dev/null
@@ -1,11 +0,0 @@
-/** Readable error for a failed test `pnpm install`, surfacing pnpm's output. */
-export function pnpmInstallErrorMessage(
-	cwd: string,
-	stdout: string | Buffer = '',
-	stderr: string | Buffer = ''
-): string {
-	const output = `${stdout}${stderr}`;
-	const tooRecent = output.includes('ERR_PNPM_NO_MATURE_MATCHING_VERSION');
-	const hint = tooRecent ? ' (a dependency was published too recently, minimumReleaseAge)' : '';
-	return `pnpm install failed in ${cwd}${hint}\n\n${output}`;
-}
diff --git a/packages/sv/src/testing.ts b/packages/sv/src/testing.ts
index 9da606498..5301b2516 100644
--- a/packages/sv/src/testing.ts
+++ b/packages/sv/src/testing.ts
@@ -9,7 +9,6 @@ import type { TestProject } from 'vitest/node';
 import { add, type AddonMap, type OptionMap } from './core/engine.ts';
 import { addPnpmAllowBuilds } from './core/package-manager.ts';
 import { create } from './create/index.ts';
-import { pnpmInstallErrorMessage } from './pnpm-install-error.ts';
 
 export type ProjectVariant = 'kit-js' | 'kit-ts' | 'vite-js' | 'vite-ts';
 export const variants: ProjectVariant[] = ['kit-js', 'kit-ts', 'vite-js', 'vite-ts'];
@@ -366,11 +365,13 @@ export function createSetupTest(
 			}
 
 			const installDir = path.resolve(cwd, testName);
-			try {
-				execSync('pnpm install', { cwd: installDir, stdio: 'pipe' });
-			} catch (e) {
-				const err = e as { stdout?: Buffer; stderr?: Buffer };
-				throw new Error(pnpmInstallErrorMessage(installDir, err.stdout, err.stderr), { cause: e });
+			const install = await exec('pnpm', ['install'], {
+				nodeOptions: { cwd: installDir, stdio: 'pipe' }
+			});
+			if (install.exitCode !== 0) {
+				throw new Error(
+					`pnpm install failed in ${installDir}\n  stdout: ${install.stdout}\n  stderr: ${install.stderr}`
+				);
 			}
 		});
 

From ed42c99c1ebee88a514e14c5ecd264b02ff97598 Mon Sep 17 00:00:00 2001
From: jycouet <jycouet@gmail.com>
Date: Thu, 4 Jun 2026 08:34:04 +0200
Subject: [PATCH 5/5] 3 to 6 minutes (it was the case before but hidden by
 exec!)

---
 packages/sv/src/addons/vitest.config.ts | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/packages/sv/src/addons/vitest.config.ts b/packages/sv/src/addons/vitest.config.ts
index 682942b7c..370f05c71 100644
--- a/packages/sv/src/addons/vitest.config.ts
+++ b/packages/sv/src/addons/vitest.config.ts
@@ -10,7 +10,7 @@ export default defineProject({
 		include: ['tests/**/test.{js,ts}'],
 		globalSetup: ['tests/_setup/global.ts'],
 		testTimeout: ONE_MINUTE * (isWindows ? 5 : 3),
-		hookTimeout: ONE_MINUTE * (isWindows ? 5 : 3),
+		hookTimeout: ONE_MINUTE * 6,
 		retry: env.CI ? 3 : 0,
 		maxConcurrency: 4,
 		expect: {