Release Notes

Release tag: aptos-node-v1.18.0.rc

CLI Version this release is compatible with: v4.0.0+

Validator Update Required? Y

Fullnode Update Required? Y

Aptos Improvement Proposals (AIPs)

Check out all of our AIPs and discussions here on GitHub.

[AIP-X] Collection Permissions Update
- Ecosystem Impact: Changing collection permissions from creator to owner
- Dependencies: None
- Feature Flag: None
[AIP-93] Consensus Observer
- Ecosystem Impact: Improved transaction latencies under load
- Dependencies: None
- Feature Flag: None (this feature is gated by the node configs)
[AIP-91] Enum Types in the Move VM
- Ecosystem Impact: Users can use enum types in Move smart contracts
- Dependencies: None
- Feature Flag: USE_COMPATIBILITY_CHECKER_V2, ENABLE_ENUM_TYPES

Dynamic adjustment for variance in gas calibration has been added to the block proposer, adjusting block sizes to target each block to take up to 250ms, providing predictable latency
Precompute and store transaction accumulator root hash on each version, for APIs that require this information the performance is improved.
Internal indexer implementation and bug fixes are finished.

Preliminary support for consensus observer AIP 93 has been added. This targets the validators and validator fullnodes (VFNs).

Earlier PFNs used to forward the mempool traffic to only one upstream full node. Now, the PFNs load balance the mempool traffic across many upstream full nodes.

New bcs::serailized_size native function which can be used to replace existing serialized size calculation by first getting the vector of bytes and then returning its length. Smart data structures now use this implementation.
feature flag REJECT_UNSTABLE_BYTECODE_FOR_SCRIPT to enable a check in the VM that rejects execution of a script that is compiled by an unstable compiler or containing unstable language feature on mainnet: #14099
Support raw bytes as script argument, gated by flag ALLOW_SERIALIZED_SCRIPT_ARGS