Fixed output descriptor version in Seed Backup URs.

Author: wolfmcnally

README.md

@@ -47,6 +47,12 @@ _For related Threat Modeling, see the [Seed Tool Manual](https://github.com/Bloc
 
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+### 1.6 (78)
+
+* THIS IS A RELEASE CANDIDATE
+* Fixed: Seed backup URs were writing version 2 output descriptors. Now writing version 3.
+* Fixed: Parsing seed backup URs only parsed version 2 output descriptors. Now parses version 2 or 3.
+
 ### 1.6 (77)
 
 * THIS IS A RELEASE CANDIDATE