Protocol Alpha

Protocol Alpha#

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

For changes brought by Paris with respect to Oxford, see Protocol Paris.

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

Environment Version#

This protocol requires a different protocol environment version than Quebec. It requires protocol environment V14, compared to V13 for Quebec.

Smart Rollups#

Data Availability Layer#

Adaptive Issuance#

Gas improvements#

  • Increase gas cost for transfers to implicit accounts by 2000 gas units. (MR !15993)

Breaking Changes#

RPC Changes#

  • Added RPC GET /chains/<chain_id>/blocks/<block_id>/helpers/consecutive_round_zero, which returns the number of blocks consecutively baked at round zero. (MR !15945)

Operation receipts#

Errors#

  • tz4 (BLS) addresses are not forbidden to be registered as delegate and or as consensus keys if the allow_tz4_delegate_enable feature flag is set. (MR !15302)

Protocol parameters#

  • Lower the number of blocks per cycle (blocks_per_cycle) from 30720 (~2.8 days) to 10800 (~1 day). (MR !15196)

  • Update the number of cycles per voting period (cycles_per_voting_period) from 5 cycles (that is, ~14.2 days with old cycle duration) to 14 cycles (~14 days with new cycle duration). (MR !15196)

  • Make tolerated_inactivity_period a protocol constant, and lower from 3 cycles (~8.5 days with old cycle duration) to 1 cycle (~1 day with new cycle duration). (MRs !15390, !15199)

  • Lower the number of blocks per cycle (blocks_per_cycle) for ghostnet to 10800 (~12 hours). (MR !15196)

Bug Fixes#

Minor Changes#

  • Added a feature flag to enable the aggregation of block attestation lists into a single aggregate operation. (MR :gl:!15283)

  • Added a feature flag which would allow tz4 (BLS) addresses as delegate and or as consensus keys. (MR !15311)

  • Added a feature flag for allowing all bakers to attest. (MR !15584, !15764)

  • Changed the type of the protocol constant max_slashing_threshold from int to Ratio.t. (MR !15765)

Internal#

  • Removed obsolete feature flags and code related to adaptive issuance activation, auto-staking, and old slashing. (MRs !15215, !15223, !15211)

  • Added a stub RISC-V module for the protocol environment and used it in the protocol implementation for the RISC-V PVM. (MRs !15921)

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