diff --git a/Package.swift b/Package.swift
index 9554198..083654d 100644
--- a/Package.swift
+++ b/Package.swift
@@ -13,11 +13,14 @@ let settings: [SwiftSetting] = [
 ]
 
 // The release the three zips are attached to, and their SwiftPM checksums (written by a release run of tools/xcframework/build.sh).
+// The asset names carry the rebuild: `-r2` are the zips without AppleDouble `._*` entries (#32). The first build's zips stay on
+// the release under their own names, so every tag up to 0.11.0 still resolves with the checksums it pins.
 let xcframeworkRelease = "0.4.0"
+let xcframeworkRebuild = "-r2"
 let xcframeworks: [(name: String, checksum: String)] = [
-    ("FormatoLibHDF5", "8b6b74bc65088e4ba28e6bb5c897ef85e5f17a24ad3ab6ce0dae18531788d236"),
-    ("FormatoLibSZ", "52388745a16c0856d162a8ed7efc1befa23f8274cdb7b169ee320e10d8f0a28d"),
-    ("FormatoLibAEC", "bef7dd2368f3caf3c8d878ddd30784f1f4bf2570820a2384c693e0f5d6d28518"),
+    ("FormatoLibHDF5", "c16fd49b1935fd3c1be47bc391417894ecd0e1122dfda999f91129060b41925e"),
+    ("FormatoLibSZ", "c41dd18fedd12bcbc9dbbb79cc331c7244ac9d3ec3e4f712b20457d3063fdb52"),
+    ("FormatoLibAEC", "fd8fed678701cc671ba4a7880f577485b0283634113e39ca05f949cbcee759ad"),
 ]
 let useLocalXCFrameworks = Context.environment["FORMATO_LOCAL_XCFRAMEWORKS"] != nil
 let binaryTargets: [Target] = xcframeworks.map { framework in
@@ -25,7 +28,7 @@ let binaryTargets: [Target] = xcframeworks.map { framework in
         ? .binaryTarget(name: framework.name, path: "dist/xcframeworks/\(framework.name).xcframework")
         : .binaryTarget(
             name: framework.name,
-            url: "https://github.com/mac4DSTEM/FormatoKit/releases/download/\(xcframeworkRelease)/\(framework.name).xcframework.zip",
+            url: "https://github.com/mac4DSTEM/FormatoKit/releases/download/\(xcframeworkRelease)/\(framework.name)\(xcframeworkRebuild).xcframework.zip",
             checksum: framework.checksum)
 }
 
diff --git a/tools/xcframework/build.sh b/tools/xcframework/build.sh
index b1179cf..db98fe3 100755
--- a/tools/xcframework/build.sh
+++ b/tools/xcframework/build.sh
@@ -6,9 +6,11 @@
 #
 # The zips are not byte-reproducible, so a rebuild changes their checksums. A release build (no --local) writes the new checksums into
 # Package.swift; --local (the gates' build when dist/ is missing) leaves Package.swift alone. Release: run without --local, commit
-# Package.swift, then upload exactly those zips and tag (the owner's commands):
-#   gh release create 0.4.0 --draft --title 0.4.0 dist/xcframeworks/FormatoLib{HDF5,SZ,AEC}.xcframework.zip
-#   (publish the draft and push the tag 0.4.0 only after Package.swift with these checksums is on main)
+# Package.swift, then upload exactly those zips under the names Package.swift resolves (the owner's commands). A rebuild never
+# replaces an asset a tag already pins: it gets a new `xcframeworkRebuild` suffix in Package.swift and is uploaded beside the old ones:
+#   cp dist/xcframeworks/FormatoLibHDF5.xcframework.zip <dir>/FormatoLibHDF5-r2.xcframework.zip   (and SZ, AEC)
+#   gh release upload 0.4.0 <dir>/FormatoLib{HDF5,SZ,AEC}-r2.xcframework.zip
+#   (merge the Package.swift change only after the upload: the xcframework-url job on main resolves them)
 #
 # Why frameworks: Xcode embeds a dynamic framework from a binary target into an app and signs it with the app's own identity at
 # archive time (Developer ID, Hardened Runtime). A resource-bundled bare dylib is copied and stays ad-hoc signed. The binaries are