chore: version packages (#385)

Co-authored-by: github-actions[bot] <41898282+github-actions[bot]@users.noreply.github.com>

Author: github-actions[bot]

.changeset/funny-cameras-juggle.md

@@ -1,5 +1,12 @@
 # mppx
 
+## 0.6.4
+
+### Patch Changes
+
+- 0d1e548: Fixed credential `opaque` serialization to use the spec-compliant base64url string shape, while keeping deserialization backward-compatible with legacy object-shaped credentials.
+- 9536014: Added canonical discovery output using `x-payment-info.offers[]` while continuing to accept the legacy flat shorthand during validation and parsing.
+
 ## 0.6.3
 
 ### Patch Changes

.changeset/tiny-dingos-type.md

@@ -61,7 +61,7 @@
   "[!start-pkg]": "",
   "name": "mppx",
   "type": "module",
-  "version": "0.6.3",
+  "version": "0.6.4",
   "main": "./dist/index.js",
   "license": "MIT",
   "files": [