Protocol Alpha¶
This page documents the changes brought by protocol Alpha with respect to Nairobi (see Protocol naming).
The code can be found in directory src/proto_alpha of the master
branch of Octez.
Contents
Environment Version¶
This protocol requires a different protocol environment version than Nairobi. It requires protocol environment V10, compared to V9 for Nairobi.
Adaptive Inflation (ongoing)¶
Introduce feature flag for Adaptive Inflation. (MR !8566)
Breaking Changes¶
Protocol parameter
ratio_of_frozen_deposits_slashed_per_double_endorsement
is converted from the ratio1/5
into the percentage50%
and renamed topercentage_of_frozen_deposits_slashed_per_double_endorsement
. (MR !8753)Protocol parameter
double_baking_punishment
is converted from a fixed value of640tz
into the percentage11%
and renamed topercentage_of_frozen_deposits_slashed_per_double_baking
. (MR !8753)
RPC Changes¶
Split duplicated argument
pkh
in RPCsmart_rollups/smart_rollup/<address>/staker1/<pkh>/staker2/<pkh>/timeout
andsmart_rollups/smart_rollup/<address>/staker1/<pkh>/staker2/<pkh>/timeout_reached
into/staker1/<staker1_pkh>/staker2/<staker2_pkh>
. This changes the RPC description but not its use. (MR !8339)Update context with new reward parameters. This changes the JSON from the RPC
/chains/main/blocks/head/context/constants
. (MR !8657)Remove the RPC for computing smart rollups’ origination proofs
smart_rollups/all/origination_proof
. (MR !8817)
Internal¶
Fail earlier when a smart rollup commitment is in conflict when cementing. (MR !8128)
split smart rollup origination fct for readibility. (MR !8276)
Remove the deprecated and unused
tx_rollup_l2_address
Michelson type. (MR !8546)Add an internal represention case for the
UNIT
Michelson instruction. (MR !8579)Encoding that supports
endorsement
kind in JSON are now suffixed with_with_legacy_attestation_name
. Non legacy encoding supportsattestation
kind. (MR !8563)Michelson: remove legacy behaviour related to contract type. (MR !5800)
Michelson: cleanup legacy annotation management. (MR !8208)
Michelson: refactor management of metadata in ty smart constructors. (MR !8420)
Michelson: remove unused deprecated tx_rollup_l2_address type. (MR !8546)
Rename
source
intosender
. (MR !7373)Improve efficiency of solving the baker PoW challenge. (MR !8403)
Refactor declarations of
make_empty_context
andmake_empty_tree
for easier use. (MR !8550)Move notions of Smart rollup address and various smart rollup hashes types to the shell to make them common to all protocols though the environment. (MR !8562, MR !8625)
Refactoring : stake splitted between a frozen part and a delegated part. (MR !8051)
Refactoring : rewards computed as a relative portion of the total amount of tez rewarded per minute (about 85tez/min). (MR !8657)
Introduce the notion of rollups “machine” which can compute the semantics of a given rollup, but cannot be used to generate or verify proof. (MR !8815)
Consensus: optimized validation of attestations by maintaining a set of forbidden delegates instead of checking through an I/O that the delegate has a sufficient frozen deposit. (MR !8722)