diff --git a/bucket/bun-canary.json b/bucket/bun-canary.json
index 1b601ad9f3c..427a9fd3265 100644
--- a/bucket/bun-canary.json
+++ b/bucket/bun-canary.json
@@ -1,5 +1,5 @@
 {
-    "version": "1.1.22-canary.1+dbd320ccf",
+    "version": "1.3.12-canary.1+0ff0065f9",
     "description": "Incredibly fast JavaScript runtime, bundler, transpiler and package manager - all in one.",
     "homepage": "https://bun.sh/",
     "license": "MIT",
@@ -8,11 +8,54 @@
     },
     "architecture": {
         "64bit": {
-            "url": "https://nightly.link/oven-sh/bun/suites/10149528008/artifacts/1752223277#/dl.zip",
-            "hash": "dc444df8d0fb88572dc742f4faefcc52de0d6be84b769ad12576cd2ee4a0e617",
-            "pre_install": "Expand-7zipArchive \"$dir\\bun-windows-x64.zip\" -ExtractDir 'bun-windows-x64' -Removal"
+            "url": [
+                "https://github.com/oven-sh/bun/releases/download/canary/bun-windows-x64.zip",
+                "https://github.com/oven-sh/bun/releases/download/canary/bun-windows-x64-baseline.zip"
+            ],
+            "hash": [
+                "eae99c1c1744c9bdb4176d5a907b985b82bc7fbf1490894c939579165f98cbba",
+                "905eba784398f49d3722a6f130c2f7921200978e3c4d85b0d724f5bbbc8c43e8"
+            ]
+        },
+        "arm64": {
+            "url": "https://github.com/oven-sh/bun/releases/download/canary/bun-windows-aarch64.zip",
+            "hash": "fb5215b01a1a35e3b31269207dcea2470772a807bf2c02389ba561fe95a3900b"
         }
     },
+    "pre_install": [
+        "# Migrate legacy Bun data if it exists and the new persist directory doesn't exist",
+        "$legacy_bun = Join-Path -Path $env:USERPROFILE -ChildPath '.bun'",
+        "if ((Test-Path $legacy_bun) -and -not (Test-Path $persist_dir)) {",
+        "    Write-Host \"Migrating legacy Bun data from '$legacy_bun' to '$persist_dir'.\" -ForegroundColor Yellow",
+        "    Move-Item $legacy_bun $persist_dir -Force",
+        "} elseif ((Test-Path $legacy_bun) -and (Test-Path $persist_dir)) {",
+        "    Write-Host \"Found both '$legacy_bun' and '$persist_dir'. Skipping auto-migration; please migrate manually if needed.\" -ForegroundColor Yellow",
+        "}",
+        "",
+        "# Extract the appropriate binary based on architecture and CPU features",
+        "if ($architecture -eq 'arm64') {",
+        "    $target = 'bun-windows-aarch64'",
+        "} else {",
+        "    $avx2 = Start-Job -ScriptBlock {",
+        "        Add-Type -MemberDefinition '[DllImport(\"kernel32.dll\")] public static extern bool IsProcessorFeaturePresent(int ProcessorFeature);' -Name Kernel32 -Namespace Win32",
+        "        return [Win32.Kernel32]::IsProcessorFeaturePresent(40)",
+        "    } | Receive-Job -Wait -AutoRemoveJob",
+        "    $target = 'bun-windows-x64'",
+        "    if (-not $avx2) {",
+        "        $target += '-baseline'",
+        "    }",
+        "}",
+        "Move-Item \"$dir\\$target\\bun.exe\" \"$dir\\bun.exe\"",
+        "Remove-Item \"$dir\\bun-windows-*\" -Recurse"
+    ],
+    "installer": {
+        "script": "Add-Path -Path \"$persist_dir\\bin\" -Global:$global -Force"
+    },
+    "env_set": {
+        "BUN_INSTALL": "$persist_dir",
+        "BUN_INSTALL_BIN": "$persist_dir\\bin",
+        "BUN_INSTALL_GLOBAL_DIR": "$persist_dir\\install\\global"
+    },
     "bin": [
         "bun.exe",
         [
@@ -21,31 +64,41 @@
             "x"
         ]
     ],
+    "persist": [
+        "bin",
+        "install"
+    ],
+    "uninstaller": {
+        "script": "Remove-Path -Path \"$persist_dir\\bin\" -Global:$global"
+    },
     "checkver": {
         "script": [
-            "$runs = (irm 'https://api.github.com/repos/oven-sh/bun/actions/workflows/ci.yml/runs?status=success&per_page=1')",
-            "$buildId = $runs.workflow_runs[0].id",
-            "$artifacts = (irm \"https://api.github.com/repos/oven-sh/bun/actions/runs/$buildId/artifacts\")",
-            "$artifactId = $artifacts.artifacts | Where-Object { $_.name -eq 'bun-windows-x64' } | Select-Object -ExpandProperty 'id'",
-            "$dl_url = \"https://nightly.link/oven-sh/bun/suites/$buildId/artifacts/$artifactId\"",
-            "$dl = cache_path 'bun-canary' 'unknown' \"$dl_url#/dl.zip\"",
-            "$dl_dir = strip_ext $dl",
-            "Invoke-RestMethod $dl_url -OutFile $dl",
-            "Expand-Archive $dl $dl_dir -Force",
-            "Expand-Archive \"$dl_dir\\bun-windows-x64.zip\" $dl_dir -Force",
+            "$dl_url = 'https://github.com/oven-sh/bun/releases/download/canary/bun-windows-x64.zip'",
+            "$dl_path = cache_path 'bun-canary' 'unknown' $dl_url",
+            "$dl_dir = Split-Path -Path $dl_path -Parent",
+            "Invoke-WebRequest -Uri $dl_url -OutFile $dl_path",
+            "Expand-Archive -Path $dl_path -DestinationPath $dl_dir | Out-Null",
             "$ver = & \"$dl_dir\\bun-windows-x64\\bun.exe\" --revision",
-            "Rename-Item $dl $($dl -replace 'unknown', $ver) -Force",
-            "Remove-Item $dl_dir -Recurse -Force",
-            "$ret = \"$ver#$buildId#$artifactId\"",
-            "$ret"
+            "Remove-Item -Path $dl_path, $dl_dir\\bun-windows-x64 -Recurse -Force",
+            "Write-Output $ver"
         ],
-        "regex": "(?<version>\\S+)#(?<buildid>\\d+)#(?<artifactid>\\d+)"
+        "regex": "(?<version>\\S+)"
     },
     "autoupdate": {
         "architecture": {
             "64bit": {
-                "url": "https://nightly.link/oven-sh/bun/suites/$matchBuildid/artifacts/$matchArtifactid#/dl.zip"
+                "url": [
+                    "https://github.com/oven-sh/bun/releases/download/canary/bun-windows-x64.zip",
+                    "https://github.com/oven-sh/bun/releases/download/canary/bun-windows-x64-baseline.zip"
+                ]
+            },
+            "arm64": {
+                "url": "https://github.com/oven-sh/bun/releases/download/canary/bun-windows-aarch64.zip"
             }
+        },
+        "hash": {
+            "url": "https://api.github.com/repos/oven-sh/bun/releases/tags/canary",
+            "jsonpath": "$..assets[?(@.name == '$basename')].digest"
         }
     }
 }