HackMD
This document describes a procedure of deprecating engine_exchangeTransitionConfiguration method and tracks the progress on it. There is a corresponding deprecation notice in the Engine API Cancun spec.
Steps suggested to gracefully deprecate this method are as follows:
- EL clients stop logging an error message indicating that the method hasn't been called for a while. Every EL client cuts a release with this change before Cancun.
- After EL releases are out, CL clients stop calling the method (it can be removed entirely on their end). Every CL client includes this change into Deneb release or earlier.
- EL clients are free to remove the method handler after Cancun happens assuming node operators updated their CL clients to a version that is not calling this method anymore.
| EL | Status | Release |
|---|---|---|
| Besu | Done |  |
| Erigon | Done | |
| EthereumJS | Done | |
| Geth | Done | |
| Nethermind | Done | |
| CL | Status | PR |
|---|---|---|
| Lighthouse | Released | https://github.com/sigp/lighthouse/pull/4517 |
| Lodestar | Released | |
| Nimbus | PR merged | https://github.com/status-im/nimbus-eth2/pull/5585 |
| Prysm | PR merged | https://github.com/prysmaticlabs/prysm/pull/13127 |
| Teku | Released | https://github.com/Consensys/teku/pull/7326 |
