Updated changelog

Signed-off-by: Joe Elliott <number101010@gmail.com>

Author: joe-elliott

CHANGELOG.md

@@ -3,6 +3,7 @@
 ## master / unreleased
 
 * [CHANGE] The frontend component has been refactored to be easier to re-use. When upgrading the frontend, cache entries will be discarded and re-created with the new protobuf schema. #1734
+* [CHANGE] Updated jaeger-go-client to v2.20.0
 * [CHANGE] Remove direct DB/API access from the ruler
 * [CHANGE] Removed `Delta` encoding. Any old chunks with `Delta` encoding cannot be read anymore. If `ingester.chunk-encoding` is set to `Delta` the ingester will fail to start. #1706
 * [CHANGE] Setting `-ingester.max-transfer-retries` to 0 now disables hand-over when ingester is shutting down. Previously, zero meant infinite number of attempts. #1771