CHANGELOG.md in opentelemetry-instrumentation-sinatra-0.21.0 vs CHANGELOG.md in opentelemetry-instrumentation-sinatra-0.21.1

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 # Release History: opentelemetry-instrumentation-sinatra
 
+### v0.21.1 / 2022-11-16
+
+* FIXED: Loosen dependency on Rack
+
 ### v0.21.0 / 2022-10-12
 
 * ADDED: Use rack middleware in sinatra middleware 
 * FIXED: Add exceptions to sinatra spans. 
 