Where is the private transaction manager for Besu?
The Hyperledger Besu private transaction manager, Orion, has been officially deprecated as of Kaleido release version 1.0.52. This means that any Besu + PoA/IBFT environments created at or beyond release 1.0.52 will not have support for on-chain private transactions. This also results in the removal of any existing Orion privacy modules during an environmental upgrade. For example, an environment created on release 1.0.49 will lose its Orion module(s) upon an upgrade to release 1.0.52 or beyond. You can find additional details regarding this deprecation in the Kaleido Release Notes.
If you have any questions regarding this platform update or have a firm use case requirement for Besu privacy modules, please contact us for further discussion.