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+# Configuration Change
+
+## Overview
+The configuration for Tangerine is round based configuration, which is allowed to be changed and applied in upcoming rounds on the fly without shutting down or forking the system.
+Each configuration will become effective two rounds after updating. Configurable parameters including:
+- MinStake: minimum stake required for becoming a bp.
+- LockupPeriod: time required for funds available for withdrawing after unstake.
+- MinGasPrice: minimum gas price.
+- LambdaBA, LambdaDKG: period for each step for Tangerine Byzantine Agreement and Tangerine DKG protocol.
+- NotaryParamAlpha, NotaryParamBeta: parameter for calculating notary set size. Refer to [Selection of notary set size](Selection-of-the-notary-set-size.md).
+- RoundLength: the number of blocks in a round.
+- MinBlockInterval: the minimum interval of timestamps between blocks on the blockchain.
+- FineValues: penalty for not following protocol. Refer to [Rule for the Tangerine node set](Rule-for-the-node-set.md).
+