Protocol Alpha#

This page documents the changes brought by protocol Alpha with respect to Tallinn (see Protocol changes).

For changes brought by Tallinn with respect to Seoul, see Protocol Seoul.

The code can be found in directory src/proto_alpha of the master branch of Octez.

Environment Version#

Smart Rollups#

Consensus#

Implemented a new algorithm for the baker selection. The current Alias method is used to determine the validator that should bake a block for a given level and round. After the feature flag swrr_new_baker_lottery_enable is activated, the selection would use SWRR (Smooth Weighted Round Robin), which is a deterministic method to distribute the round 0 of all the levels for a given cycle. The higher rounds are then using a shifted version of this list. This method still remains proportional to the stake of the baker, and aims to reduce variability of block distribution, especially for small bakers. (MR !20084)

Data Availability Layer#

Adaptive Issuance#

Gas improvements#

Breaking Changes#

RPC Changes#

Operation receipts#

Errors#

Protocol parameters#

Feature flags#

Added native_contracts_enable, that enables enshrined contracts in the protocol. The flag is disabled by default on the mainnet. (MR !19709)

Protocol Alpha

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