CHANGELOG.md in aws-sdk-comprehend-1.63.0 vs CHANGELOG.md in aws-sdk-comprehend-1.64.0

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+ new

@@ -1,7 +1,12 @@
 Unreleased Changes
 ------------------
 
+1.64.0 (2022-12-01)
+------------------
+
+* Feature - Comprehend now supports semi-structured documents (such as PDF files or image files) as inputs for custom analysis using the synchronous APIs (ClassifyDocument and DetectEntities).
+
 1.63.0 (2022-10-25)
 ------------------
 
 * Feature - Code Generated Changes, see `./build_tools` or `aws-sdk-core`'s CHANGELOG.md for details.
 
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