Source release 19.6.0

GitOrigin-RevId: 13a33e34413c19da1bfe76abcc66be519c9ac9d1

CHANGELOG.md

@@ -2,6 +2,34 @@
 
 [TOC]
 
+## 19.6.0 (2025-06-06)
+
+### Features
+
+  - Added "form factor" and "platform" to client ID.
+
+### Bug Fixes
+
+  - Gracefully handle OEMCrypto_GenerateNonce() implementations that set the
+    nonce reference argument to zero on failure.
+  - Cleaned up `CertificateProvisioning` state. This prevents mismatched public
+    and private cert keys when an app makes multiple provisioning 4.0 requests.
+  - Implemented various small fixes suggested by clang-format and clang-tidy.
+
+### Tests
+
+  - Updated `OEMCryptoClientTest.CheckBuildInformation_OutputLengthAPI17` to
+    accept a returned SHORT_BUFFER size that is larger than the actual required
+    size.
+  - Updated `OEMCryptoClientTest.CheckJsonBuildInformationAPI18` to treat the
+    JSON fields in the `ree` block as optional.
+
+### Dependency Updates
+
+  - Updated libcppbor to 61d9bff9605ad2ffd877bd99a3bde414e21f01a2. Modifed some
+    Android-specific include names in order to compile correctly without
+    Android.
+
 ## 19.5.0 (2025-04-02)
 
 This is a minor release with bug fixes, test improvements, and dependency