Update changelog [skip ci]

CHANGELOG.md

@@ -1,5 +1,23 @@
 # Changelog
 
+## [Unreleased](https://github.com/bancorprotocol/fastlane-bot/tree/HEAD)
+
+[Full Changelog](https://github.com/bancorprotocol/fastlane-bot/compare/v3.1.6...HEAD)
+
+- supernova not found in exchange [\#539](https://github.com/bancorprotocol/fastlane-bot/issues/539)
+- Transactions occasionally revert with error-message `Too little received` [\#383](https://github.com/bancorprotocol/fastlane-bot/issues/383)
+
+- Remove unused code in `submithandler.py` [\#350](https://github.com/bancorprotocol/fastlane-bot/issues/350)
+
+Closed issues
+
+- `*args, **kwargs` -\> `argsf1, argsf2`  [\#493](https://github.com/bancorprotocol/fastlane-bot/issues/493)
+- Can get rid of the if '-' in cid [\#466](https://github.com/bancorprotocol/fastlane-bot/issues/466)
+
+## [v3.1.6](https://github.com/bancorprotocol/fastlane-bot/tree/v3.1.6) (2024-04-10)
+
+[Full Changelog](https://github.com/bancorprotocol/fastlane-bot/compare/v3.1.5...v3.1.6)
+
 ## [v3.1.5](https://github.com/bancorprotocol/fastlane-bot/tree/v3.1.5) (2024-04-09)
 
 [Full Changelog](https://github.com/bancorprotocol/fastlane-bot/compare/v3.1.4...v3.1.5)