automated consensus spec URL updating to v1.5.0-alpha.6

beacon_chain/beacon_chain_db_immutable.nim

@@ -130,7 +130,7 @@ type
     current_sync_committee*: SyncCommittee     # [New in Altair]
     next_sync_committee*: SyncCommittee        # [New in Altair]
 
-  # https://github.com/ethereum/consensus-specs/blob/v1.5.0-alpha.5/specs/bellatrix/beacon-chain.md#beaconstate
+  # https://github.com/ethereum/consensus-specs/blob/v1.5.0-alpha.6/specs/bellatrix/beacon-chain.md#beaconstate
   # Memory-representation-equivalent to a Bellatrix BeaconState for in-place SSZ
   # reading and writing
   BellatrixBeaconStateNoImmutableValidators* = object

beacon_chain/beacon_clock.nim

@@ -27,7 +27,7 @@ type
     ## which blocks are valid - in particular, blocks are not valid if they
     ## come from the future as seen from the local clock.
     ##
-    ## https://github.com/ethereum/consensus-specs/blob/v1.5.0-alpha.5/specs/phase0/fork-choice.md#fork-choice
+    ## https://github.com/ethereum/consensus-specs/blob/v1.5.0-alpha.6/specs/phase0/fork-choice.md#fork-choice
     ##
     # TODO consider NTP and network-adjusted timestamps as outlined here:
     #      https://ethresear.ch/t/network-adjusted-timestamps/4187

beacon_chain/consensus_object_pools/README.md

@@ -8,7 +8,7 @@ to specs:
 - aggregate attestations: https://github.com/ethereum/consensus-specs/blob/v1.4.0-beta.5/specs/phase0/p2p-interface.md#beacon_aggregate_and_proof
 - unaggregated attestation: https://github.com/ethereum/consensus-specs/blob/v1.4.0-beta.5/specs/phase0/p2p-interface.md#beacon_attestation_subnet_id
 - voluntary exits: https://github.com/ethereum/consensus-specs/blob/v1.4.0/specs/phase0/p2p-interface.md#voluntary_exit
-- Attester slashings: https://github.com/ethereum/consensus-specs/blob/v1.5.0-alpha.5/specs/phase0/p2p-interface.md#attester_slashing
+- Attester slashings: https://github.com/ethereum/consensus-specs/blob/v1.5.0-alpha.6/specs/phase0/p2p-interface.md#attester_slashing
 - Proposer slashings: https://github.com/ethereum/consensus-specs/blob/v1.4.0-beta.5/specs/phase0/p2p-interface.md#proposer_slashing
 
 After "gossip validation" the consensus objects can be rebroadcasted as they are optimistically good, however for internal processing further verification is needed.

beacon_chain/consensus_object_pools/blockchain_dag.nim

@@ -1178,7 +1178,7 @@ proc init*(T: type ChainDAGRef, cfg: RuntimeConfig, db: BeaconChainDB,
   # should have `previous_version` set to `current_version` while
   # this doesn't happen to be the case in network that go through
   # regular hard-fork upgrades. See for example:
-  # https://github.com/ethereum/consensus-specs/blob/v1.5.0-alpha.5/specs/bellatrix/beacon-chain.md#testing
+  # https://github.com/ethereum/consensus-specs/blob/v1.5.0-alpha.6/specs/bellatrix/beacon-chain.md#testing
   if stateFork.current_version != configFork.current_version:
     error "State from database does not match network, check --network parameter",
       tail = dag.tail, headRef, stateFork, configFork
@@ -1972,7 +1972,7 @@ proc pruneBlocksDAG(dag: ChainDAGRef) =
     prunedHeads = hlen - dag.heads.len,
     dagPruneDur = Moment.now() - startTick
 
-# https://github.com/ethereum/consensus-specs/blob/v1.5.0-alpha.5/sync/optimistic.md#helpers
+# https://github.com/ethereum/consensus-specs/blob/v1.5.0-alpha.6/sync/optimistic.md#helpers
 func is_optimistic*(dag: ChainDAGRef, bid: BlockId): bool =
   let blck =
     if bid.slot <= dag.finalizedHead.slot:

beacon_chain/consensus_object_pools/spec_cache.nim

@@ -53,7 +53,7 @@ iterator get_beacon_committee*(
     committees_per_slot * SLOTS_PER_EPOCH
   ): yield (index_in_committee, idx)
 
-# https://github.com/ethereum/consensus-specs/blob/v1.5.0-alpha.5/specs/phase0/beacon-chain.md#get_beacon_committee
+# https://github.com/ethereum/consensus-specs/blob/v1.5.0-alpha.6/specs/phase0/beacon-chain.md#get_beacon_committee
 func get_beacon_committee*(
     shufflingRef: ShufflingRef, slot: Slot, committee_index: CommitteeIndex):
     seq[ValidatorIndex] =
@@ -283,7 +283,7 @@ func makeAttestationData*(
 
   doAssert current_epoch == epochRef.epoch
 
-  # https://github.com/ethereum/consensus-specs/blob/v1.5.0-alpha.5/specs/phase0/validator.md#attestation-data
+  # https://github.com/ethereum/consensus-specs/blob/v1.5.0-alpha.6/specs/phase0/validator.md#attestation-data
   AttestationData(
     slot: slot,
     index: committee_index.asUInt64,

beacon_chain/consensus_object_pools/sync_committee_msg_pool.nim

@@ -364,7 +364,7 @@ proc produceSyncAggregate*(
 
 proc isEpochLeadTime*(
     pool: SyncCommitteeMsgPool, epochsToSyncPeriod: uint64): bool =
-  # https://github.com/ethereum/consensus-specs/blob/v1.5.0-alpha.5/specs/altair/validator.md#sync-committee-subnet-stability
+  # https://github.com/ethereum/consensus-specs/blob/v1.5.0-alpha.6/specs/altair/validator.md#sync-committee-subnet-stability
   # This ensures a uniform distribution without requiring additional state:
   # (1/4)                         = 1/4, 4 slots out
   # (3/4) * (1/3)                 = 1/4, 3 slots out

beacon_chain/deposits.nim

@@ -220,7 +220,7 @@ proc restValidatorExit(config: BeaconNodeConf) {.async.} =
            reason = exc.msg
     quit 1
 
-  # https://github.com/ethereum/consensus-specs/blob/v1.5.0-alpha.5/specs/phase0/beacon-chain.md#voluntary-exits
+  # https://github.com/ethereum/consensus-specs/blob/v1.5.0-alpha.6/specs/phase0/beacon-chain.md#voluntary-exits
   # https://github.com/ethereum/consensus-specs/blob/v1.4.0-beta.0/specs/deneb/beacon-chain.md#modified-process_voluntary_exit
   let signingFork = try:
     let response = await client.getSpecVC()

beacon_chain/el/merkle_minimal.nim

@@ -7,7 +7,7 @@
 
 {.push raises: [].}
 
-# https://github.com/ethereum/consensus-specs/blob/v1.5.0-alpha.5/tests/core/pyspec/eth2spec/utils/merkle_minimal.py
+# https://github.com/ethereum/consensus-specs/blob/v1.5.0-alpha.6/tests/core/pyspec/eth2spec/utils/merkle_minimal.py
 
 # Merkle tree helpers
 # ---------------------------------------------------------------

beacon_chain/fork_choice/fork_choice.nim

@@ -109,7 +109,7 @@ proc update_justified(
   self.update_justified(dag, blck, justified.epoch)
   ok()
 
-# https://github.com/ethereum/consensus-specs/blob/v1.5.0-alpha.5/specs/phase0/fork-choice.md#update_checkpoints
+# https://github.com/ethereum/consensus-specs/blob/v1.5.0-alpha.6/specs/phase0/fork-choice.md#update_checkpoints
 proc update_checkpoints(
     self: var Checkpoints, dag: ChainDAGRef,
     checkpoints: FinalityCheckpoints): FcResult[void] =
@@ -373,7 +373,7 @@ proc get_head*(self: var ForkChoice,
     self.checkpoints.justified.balances,
     self.checkpoints.proposer_boost_root)
 
-# https://github.com/ethereum/consensus-specs/blob/v1.5.0-alpha.5/fork_choice/safe-block.md#get_safe_beacon_block_root
+# https://github.com/ethereum/consensus-specs/blob/v1.5.0-alpha.6/fork_choice/safe-block.md#get_safe_beacon_block_root
 func get_safe_beacon_block_root*(self: ForkChoice): Eth2Digest =
   # Use most recent justified block as a stopgap
   self.checkpoints.justified.checkpoint.root

beacon_chain/gossip_processing/block_processor.nim

@@ -542,8 +542,8 @@ proc storeBlock(
   if NewPayloadStatus.noResponse == payloadStatus:
     # When the execution layer is not available to verify the payload, we do the
     # required checks on the CL instead and proceed as if the EL was syncing
-    # https://github.com/ethereum/consensus-specs/blob/v1.5.0-alpha.5/specs/bellatrix/beacon-chain.md#verify_and_notify_new_payload
-    # https://github.com/ethereum/consensus-specs/blob/v1.5.0-alpha.5/specs/deneb/beacon-chain.md#modified-verify_and_notify_new_payload
+    # https://github.com/ethereum/consensus-specs/blob/v1.5.0-alpha.6/specs/bellatrix/beacon-chain.md#verify_and_notify_new_payload
+    # https://github.com/ethereum/consensus-specs/blob/v1.5.0-alpha.6/specs/deneb/beacon-chain.md#modified-verify_and_notify_new_payload
     when typeof(signedBlock).kind >= ConsensusFork.Bellatrix:
       if signedBlock.message.is_execution_block:
         template payload(): auto = signedBlock.message.body.execution_payload
@@ -850,7 +850,7 @@ proc processBlock(
     # - MUST NOT optimistically import the block.
     # - MUST NOT apply the block to the fork choice store.
     # - MAY queue the block for later processing.
-    # https://github.com/ethereum/consensus-specs/blob/v1.5.0-alpha.5/sync/optimistic.md#execution-engine-errors
+    # https://github.com/ethereum/consensus-specs/blob/v1.5.0-alpha.6/sync/optimistic.md#execution-engine-errors
     await sleepAsync(chronos.seconds(1))
     self[].enqueueBlock(
       entry.src, entry.blck, entry.blobs, entry.resfut, entry.maybeFinalized,

beacon_chain/gossip_processing/gossip_validation.nim

@@ -94,7 +94,7 @@ func check_propagation_slot_range(
     return ok(msgSlot)
 
   if consensusFork < ConsensusFork.Deneb:
-    # https://github.com/ethereum/consensus-specs/blob/v1.5.0-alpha.5/specs/phase0/p2p-interface.md#configuration
+    # https://github.com/ethereum/consensus-specs/blob/v1.5.0-alpha.6/specs/phase0/p2p-interface.md#configuration
     # The spec value of ATTESTATION_PROPAGATION_SLOT_RANGE is 32, but it can
     # retransmit attestations on the cusp of being out of spec, and which by
     # the time they reach their destination might be out of spec.
@@ -300,7 +300,7 @@ template validateBeaconBlockBellatrix(
   #
   # `is_merge_transition_complete(state)` tests for
   # `state.latest_execution_payload_header != ExecutionPayloadHeader()`, while
-  # https://github.com/ethereum/consensus-specs/blob/v1.5.0-alpha.5/specs/bellatrix/beacon-chain.md#block-processing
+  # https://github.com/ethereum/consensus-specs/blob/v1.5.0-alpha.6/specs/bellatrix/beacon-chain.md#block-processing
   # shows that `state.latest_execution_payload_header` being default or not is
   # exactly equivalent to whether that block's execution payload is default or
   # not, so test cached block information rather than reconstructing a state.
@@ -1172,7 +1172,7 @@ proc validateAggregate*(
 
   ok((attesting_indices, sig))
 
-# https://github.com/ethereum/consensus-specs/blob/v1.5.0-alpha.5/specs/capella/p2p-interface.md#bls_to_execution_change
+# https://github.com/ethereum/consensus-specs/blob/v1.5.0-alpha.6/specs/capella/p2p-interface.md#bls_to_execution_change
 proc validateBlsToExecutionChange*(
     pool: ValidatorChangePool, batchCrypto: ref BatchCrypto,
     signed_address_change: SignedBLSToExecutionChange,

beacon_chain/libnimbus_lc/libnimbus_lc.h

@@ -94,7 +94,7 @@ typedef struct ETHConsensusConfig ETHConsensusConfig;
  *         based on the given `config.yaml` file content - If successful.
  * @return `NULL` - If the given `config.yaml` is malformed or incompatible.
  *
- * @see https://github.com/ethereum/consensus-specs/blob/v1.5.0-alpha.5/configs/README.md
+ * @see https://github.com/ethereum/consensus-specs/blob/v1.5.0-alpha.6/configs/README.md
  */
 ETH_RESULT_USE_CHECK
 ETHConsensusConfig *_Nullable ETHConsensusConfigCreateFromYaml(const char *configFileContent);
@@ -150,10 +150,10 @@ typedef struct ETHBeaconState ETHBeaconState;
  * @return `NULL` - If the given `sszBytes` is malformed.
  *
  * @see https://github.com/ethereum/consensus-specs/blob/v1.4.0/specs/phase0/beacon-chain.md#beaconstate
- * @see https://github.com/ethereum/consensus-specs/blob/v1.5.0-alpha.5/specs/altair/beacon-chain.md#beaconstate
- * @see https://github.com/ethereum/consensus-specs/blob/v1.5.0-alpha.5/specs/bellatrix/beacon-chain.md#beaconstate
+ * @see https://github.com/ethereum/consensus-specs/blob/v1.5.0-alpha.6/specs/altair/beacon-chain.md#beaconstate
+ * @see https://github.com/ethereum/consensus-specs/blob/v1.5.0-alpha.6/specs/bellatrix/beacon-chain.md#beaconstate
  * @see https://github.com/ethereum/consensus-specs/blob/v1.5.0-alpha.3/specs/capella/beacon-chain.md#beaconstate
- * @see https://github.com/ethereum/consensus-specs/blob/v1.5.0-alpha.5/configs/README.md
+ * @see https://github.com/ethereum/consensus-specs/blob/v1.5.0-alpha.6/configs/README.md
  */
 ETH_RESULT_USE_CHECK
 ETHBeaconState *_Nullable ETHBeaconStateCreateFromSsz(
@@ -325,8 +325,8 @@ typedef struct ETHLightClientStore ETHLightClientStore;
  *
  * @see https://ethereum.github.io/beacon-APIs/?urls.primaryName=v2.4.1#/Beacon/getLightClientBootstrap
  * @see https://ethereum.github.io/beacon-APIs/?urls.primaryName=v2.4.1#/Events/eventstream
- * @see https://github.com/ethereum/consensus-specs/blob/v1.5.0-alpha.5/specs/altair/light-client/light-client.md
- * @see https://github.com/ethereum/consensus-specs/blob/v1.5.0-alpha.5/specs/phase0/weak-subjectivity.md#weak-subjectivity-period
+ * @see https://github.com/ethereum/consensus-specs/blob/v1.5.0-alpha.6/specs/altair/light-client/light-client.md
+ * @see https://github.com/ethereum/consensus-specs/blob/v1.5.0-alpha.6/specs/phase0/weak-subjectivity.md#weak-subjectivity-period
  */
 ETH_RESULT_USE_CHECK
 ETHLightClientStore *_Nullable ETHLightClientStoreCreateFromBootstrap(
@@ -579,7 +579,7 @@ typedef struct ETHLightClientHeader ETHLightClientHeader;
  *
  * @return Latest finalized header.
  *
- * @see https://github.com/ethereum/consensus-specs/blob/v1.5.0-alpha.5/specs/capella/light-client/sync-protocol.md#modified-lightclientheader
+ * @see https://github.com/ethereum/consensus-specs/blob/v1.5.0-alpha.6/specs/capella/light-client/sync-protocol.md#modified-lightclientheader
  */
 ETH_RESULT_USE_CHECK
 const ETHLightClientHeader *ETHLightClientStoreGetFinalizedHeader(
@@ -598,7 +598,7 @@ const ETHLightClientHeader *ETHLightClientStoreGetFinalizedHeader(
  * @return Whether or not the next sync committee is currently known.
  *
  * @see https://github.com/ethereum/consensus-specs/blob/v1.5.0-alpha.3/specs/altair/light-client/sync-protocol.md#is_next_sync_committee_known
- * @see https://github.com/ethereum/consensus-specs/blob/v1.5.0-alpha.5/specs/altair/light-client/light-client.md
+ * @see https://github.com/ethereum/consensus-specs/blob/v1.5.0-alpha.6/specs/altair/light-client/light-client.md
  */
 ETH_RESULT_USE_CHECK
 bool ETHLightClientStoreIsNextSyncCommitteeKnown(const ETHLightClientStore *store);
@@ -672,7 +672,7 @@ void ETHLightClientHeaderDestroy(ETHLightClientHeader *header);
  *
  * @return Pointer to a copy of the given header's beacon block root.
  *
- * @see https://github.com/ethereum/consensus-specs/blob/v1.5.0-alpha.5/specs/phase0/beacon-chain.md#hash_tree_root
+ * @see https://github.com/ethereum/consensus-specs/blob/v1.5.0-alpha.6/specs/phase0/beacon-chain.md#hash_tree_root
  */
 ETH_RESULT_USE_CHECK
 ETHRoot *ETHLightClientHeaderCopyBeaconRoot(
@@ -695,7 +695,7 @@ typedef struct ETHBeaconBlockHeader ETHBeaconBlockHeader;
  *
  * @return Beacon block header.
  *
- * @see https://github.com/ethereum/consensus-specs/blob/v1.5.0-alpha.5/specs/phase0/beacon-chain.md#beaconblockheader
+ * @see https://github.com/ethereum/consensus-specs/blob/v1.5.0-alpha.6/specs/phase0/beacon-chain.md#beaconblockheader
  */
 ETH_RESULT_USE_CHECK
 const ETHBeaconBlockHeader *ETHLightClientHeaderGetBeacon(

beacon_chain/libnimbus_lc/libnimbus_lc.nim

@@ -77,7 +77,7 @@ proc ETHConsensusConfigCreateFromYaml(
   ## * `NULL` - If the given `config.yaml` is malformed or incompatible.
   ##
   ## See:
-  ## * https://github.com/ethereum/consensus-specs/blob/v1.5.0-alpha.5/configs/README.md
+  ## * https://github.com/ethereum/consensus-specs/blob/v1.5.0-alpha.6/configs/README.md
   let cfg = RuntimeConfig.new()
   try:
     cfg[] = readRuntimeConfig($configFileContent, "config.yaml")[0]
@@ -143,9 +143,9 @@ proc ETHBeaconStateCreateFromSsz(
   ## See:
   ## * https://github.com/ethereum/consensus-specs/blob/v1.4.0/specs/phase0/beacon-chain.md#beaconstate
   ## * https://github.com/ethereum/consensus-specs/blob/v1.4.0/specs/altair/beacon-chain.md#beaconstate
-  ## * https://github.com/ethereum/consensus-specs/blob/v1.5.0-alpha.5/specs/bellatrix/beacon-chain.md#beaconstate
+  ## * https://github.com/ethereum/consensus-specs/blob/v1.5.0-alpha.6/specs/bellatrix/beacon-chain.md#beaconstate
   ## * https://github.com/ethereum/consensus-specs/blob/v1.5.0-alpha.3/specs/capella/beacon-chain.md#beaconstate
-  ## * https://github.com/ethereum/consensus-specs/blob/v1.5.0-alpha.5/configs/README.md
+  ## * https://github.com/ethereum/consensus-specs/blob/v1.5.0-alpha.6/configs/README.md
   let
     consensusFork = ConsensusFork.decodeString($consensusVersion).valueOr:
       return nil
@@ -328,8 +328,8 @@ proc ETHLightClientStoreCreateFromBootstrap(
   ## See:
   ## * https://ethereum.github.io/beacon-APIs/?urls.primaryName=v2.4.1#/Beacon/getLightClientBootstrap
   ## * https://ethereum.github.io/beacon-APIs/?urls.primaryName=v2.4.1#/Events/eventstream
-  ## * https://github.com/ethereum/consensus-specs/blob/v1.5.0-alpha.5/specs/altair/light-client/light-client.md
-  ## * https://github.com/ethereum/consensus-specs/blob/v1.5.0-alpha.5/specs/phase0/weak-subjectivity.md#weak-subjectivity-period
+  ## * https://github.com/ethereum/consensus-specs/blob/v1.5.0-alpha.6/specs/altair/light-client/light-client.md
+  ## * https://github.com/ethereum/consensus-specs/blob/v1.5.0-alpha.6/specs/phase0/weak-subjectivity.md#weak-subjectivity-period
   let
     mediaType = MediaType.init($mediaType)
     consensusFork = ConsensusFork.decodeString($consensusVersion).valueOr:
@@ -755,7 +755,7 @@ func ETHLightClientStoreIsNextSyncCommitteeKnown(
   ##
   ## See:
   ## * https://github.com/ethereum/consensus-specs/blob/v1.5.0-alpha.3/specs/altair/light-client/sync-protocol.md#is_next_sync_committee_known
-  ## * https://github.com/ethereum/consensus-specs/blob/v1.5.0-alpha.5/specs/altair/light-client/light-client.md
+  ## * https://github.com/ethereum/consensus-specs/blob/v1.5.0-alpha.6/specs/altair/light-client/light-client.md
   store[].is_next_sync_committee_known
 
 func ETHLightClientStoreGetOptimisticHeader(
@@ -841,7 +841,7 @@ proc ETHLightClientHeaderCopyBeaconRoot(
   ## * Pointer to a copy of the given header's beacon block root.
   ##
   ## See:
-  ## * https://github.com/ethereum/consensus-specs/blob/v1.5.0-alpha.5/specs/phase0/beacon-chain.md#hash_tree_root
+  ## * https://github.com/ethereum/consensus-specs/blob/v1.5.0-alpha.6/specs/phase0/beacon-chain.md#hash_tree_root
   discard cfg  # Future-proof against new fields, see `get_lc_execution_root`.
   let root = Eth2Digest.new()
   root[] = header[].beacon.hash_tree_root()

beacon_chain/networking/eth2_network.nim

@@ -176,7 +176,7 @@ type
   MounterProc* = proc(network: Eth2Node) {.gcsafe, raises: [].}
   MessageContentPrinter* = proc(msg: pointer): string {.gcsafe, raises: [].}
 
-  # https://github.com/ethereum/consensus-specs/blob/v1.5.0-alpha.5/specs/phase0/p2p-interface.md#goodbye
+  # https://github.com/ethereum/consensus-specs/blob/v1.5.0-alpha.6/specs/phase0/p2p-interface.md#goodbye
   DisconnectionReason* = enum
     # might see other values on the wire!
     ClientShutDown = 1
@@ -2555,8 +2555,8 @@ proc updateStabilitySubnetMetadata*(node: Eth2Node, attnets: AttnetBits) =
   node.metadata.seq_number += 1
   node.metadata.attnets = attnets
 
-  # https://github.com/ethereum/consensus-specs/blob/v1.5.0-alpha.5/specs/phase0/p2p-interface.md#attestation-subnet-subscription
-  # https://github.com/ethereum/consensus-specs/blob/v1.5.0-alpha.5/specs/phase0/p2p-interface.md#attestation-subnet-bitfield
+  # https://github.com/ethereum/consensus-specs/blob/v1.5.0-alpha.6/specs/phase0/p2p-interface.md#attestation-subnet-subscription
+  # https://github.com/ethereum/consensus-specs/blob/v1.5.0-alpha.6/specs/phase0/p2p-interface.md#attestation-subnet-bitfield
   let res = node.discovery.updateRecord({
     enrAttestationSubnetsField: SSZ.encode(node.metadata.attnets)
   })
@@ -2568,7 +2568,7 @@ proc updateStabilitySubnetMetadata*(node: Eth2Node, attnets: AttnetBits) =
     debug "Stability subnets changed; updated ENR attnets", attnets
 
 proc updateSyncnetsMetadata*(node: Eth2Node, syncnets: SyncnetBits) =
-  # https://github.com/ethereum/consensus-specs/blob/v1.5.0-alpha.5/specs/altair/validator.md#sync-committee-subnet-stability
+  # https://github.com/ethereum/consensus-specs/blob/v1.5.0-alpha.6/specs/altair/validator.md#sync-committee-subnet-stability
   if node.metadata.syncnets == syncnets:
     return
 
@@ -2610,7 +2610,7 @@ proc broadcastAttestation*(
     attestation: phase0.Attestation | electra.Attestation):
     Future[SendResult] {.async: (raises: [CancelledError], raw: true).} =
   # Regardless of the contents of the attestation,
-  # https://github.com/ethereum/consensus-specs/blob/v1.5.0-alpha.5/specs/altair/p2p-interface.md#transitioning-the-gossip
+  # https://github.com/ethereum/consensus-specs/blob/v1.5.0-alpha.6/specs/altair/p2p-interface.md#transitioning-the-gossip
   # implies that pre-fork, messages using post-fork digests might be
   # ignored, whilst post-fork, there is effectively a seen_ttl-based
   # timer unsubscription point that means no new pre-fork-forkdigest