The Shimmer network will be the official, incentivized staging network of IOTA. It will be an essential part of IOTA’s path to increased utility, ecosystem growth and full decentralization. Shimmer will help to publicly validate every major upcoming upgrade before they reach the IOTA network.
Shimmer will also play an essential role in ensuring that every upgrade of the network will be followed by a smooth and secure transition for all token holders and applications. Especially for the upgrade to IOTA 2.0 (full decentralization and the Coordicide), we need to make sure that the transition is carefully planned and executed. Shimmer will be a guide for IOTA and all of its network participants, helping to minimize risk and maximize the safety of all future network upgrades.
Shimmer Network Blog