diff --git a/changelog/0.8.3/pull-1634 b/changelog/0.8.3/pull-1634
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index 000000000..3a2a8aa3d
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+Enhancement: Upgrade B2 client library, reduce HTTP requests
+
+We've upgraded the B2 client library restic uses to access BackBlaze B2. This
+reduces the number of HTTP requests needed to upload a new file from two to
+one, which should improve throughput to B2.
+
+https://github.com/restic/restic/pull/1634