- Remove deprecated sync modes (X_SNAP and X_CHECKPOINT). Use SNAP and CHECKPOINT instead [#7309](https://github.com/hyperledger/besu/pull/7309)
- Remove PKI-backed QBFT (deprecated in 24.5.1) Other forms of QBFT remain unchanged. [#7293](https://github.com/hyperledger/besu/pull/7293)
- Added world state to traceEndBlock [#7386](https://github.com/hyperledger/besu/pull/7386)
### Additions and Improvements
- `--Xsnapsync-bft-enabled` option enables experimental support for snap sync with IBFT/QBFT permissioned Bonsai-DB chains [#7140](https://github.com/hyperledger/besu/pull/7140)