v0.6: update all spec version comments

eth2/state_processing/src/per_epoch_processing/apply_rewards.rs

@@ -32,7 +32,7 @@ impl std::ops::AddAssign for Delta {
 
 /// Apply attester and proposer rewards.
 ///
-/// Spec v0.6.1
+/// Spec v0.6.3
 pub fn process_rewards_and_penalties<T: EthSpec>(
     state: &mut BeaconState<T>,
     validator_statuses: &mut ValidatorStatuses,
@@ -74,7 +74,7 @@ pub fn process_rewards_and_penalties<T: EthSpec>(
 
 /// For each attesting validator, reward the proposer who was first to include their attestation.
 ///
-/// Spec v0.6.1
+/// Spec v0.6.3
 fn get_proposer_deltas<T: EthSpec>(
     deltas: &mut Vec<Delta>,
     state: &BeaconState<T>,
@@ -111,7 +111,7 @@ fn get_proposer_deltas<T: EthSpec>(
 
 /// Apply rewards for participation in attestations during the previous epoch.
 ///
-/// Spec v0.6.1
+/// Spec v0.6.3
 fn get_attestation_deltas<T: EthSpec>(
     deltas: &mut Vec<Delta>,
     state: &BeaconState<T>,
@@ -144,7 +144,7 @@ fn get_attestation_deltas<T: EthSpec>(
 
 /// Determine the delta for a single validator, sans proposer rewards.
 ///
-/// Spec v0.6.1
+/// Spec v0.6.3
 fn get_attestation_delta(
     validator: &ValidatorStatus,
     total_balances: &TotalBalances,
@@ -224,7 +224,7 @@ fn get_attestation_delta(
 
 /// Calculate the deltas based upon the winning roots for attestations during the previous epoch.
 ///
-/// Spec v0.6.1
+/// Spec v0.6.3
 fn get_crosslink_deltas<T: EthSpec>(
     deltas: &mut Vec<Delta>,
     state: &BeaconState<T>,
@@ -258,7 +258,7 @@ fn get_crosslink_deltas<T: EthSpec>(
 
 /// Returns the base reward for some validator.
 ///
-/// Spec v0.6.1
+/// Spec v0.6.3
 fn get_base_reward<T: EthSpec>(
     state: &BeaconState<T>,
     index: usize,

eth2/state_processing/src/per_epoch_processing/process_slashings.rs

@@ -2,7 +2,7 @@ use types::{BeaconStateError as Error, *};
 
 /// Process slashings.
 ///
-/// Spec v0.6.1
+/// Spec v0.6.3
 pub fn process_slashings<T: EthSpec>(
     state: &mut BeaconState<T>,
     current_total_balance: u64,

eth2/state_processing/src/per_epoch_processing/registry_updates.rs

@@ -5,7 +5,7 @@ use types::*;
 
 /// Peforms a validator registry update, if required.
 ///
-/// Spec v0.6.1
+/// Spec v0.6.3
 pub fn process_registry_updates<T: EthSpec>(
     state: &mut BeaconState<T>,
     spec: &ChainSpec,

eth2/state_processing/src/per_epoch_processing/validator_statuses.rs

@@ -162,7 +162,7 @@ impl ValidatorStatuses {
     /// - Active validators
     /// - Total balances for the current and previous epochs.
     ///
-    /// Spec v0.6.1
+    /// Spec v0.6.3
     pub fn new<T: EthSpec>(
         state: &BeaconState<T>,
         spec: &ChainSpec,
@@ -202,7 +202,7 @@ impl ValidatorStatuses {
     /// Process some attestations from the given `state` updating the `statuses` and
     /// `total_balances` fields.
     ///
-    /// Spec v0.6.1
+    /// Spec v0.6.3
     pub fn process_attestations<T: EthSpec>(
         &mut self,
         state: &BeaconState<T>,
@@ -289,7 +289,7 @@ impl ValidatorStatuses {
     /// Update the `statuses` for each validator based upon whether or not they attested to the
     /// "winning" shard block root for the previous epoch.
     ///
-    /// Spec v0.6.1
+    /// Spec v0.6.3
     pub fn process_winning_roots<T: EthSpec>(
         &mut self,
         state: &BeaconState<T>,
@@ -323,7 +323,7 @@ impl ValidatorStatuses {
 
 /// Returns `true` if some `PendingAttestation` is from the supplied `epoch`.
 ///
-/// Spec v0.6.1
+/// Spec v0.6.3
 fn is_from_epoch(a: &PendingAttestation, epoch: Epoch) -> bool {
     a.data.target_epoch == epoch
 }
@@ -331,7 +331,7 @@ fn is_from_epoch(a: &PendingAttestation, epoch: Epoch) -> bool {
 /// Returns `true` if the attestation's FFG target is equal to the hash of the `state`'s first
 /// beacon block in the given `epoch`.
 ///
-/// Spec v0.6.1
+/// Spec v0.6.3
 fn target_matches_epoch_start_block<T: EthSpec>(
     a: &PendingAttestation,
     state: &BeaconState<T>,
@@ -346,7 +346,7 @@ fn target_matches_epoch_start_block<T: EthSpec>(
 /// Returns `true` if a `PendingAttestation` and `BeaconState` share the same beacon block hash for
 /// the current slot of the `PendingAttestation`.
 ///
-/// Spec v0.6.1
+/// Spec v0.6.3
 fn has_common_beacon_block_root<T: EthSpec>(
     a: &PendingAttestation,
     state: &BeaconState<T>,

eth2/state_processing/src/per_epoch_processing/winning_root.rs

@@ -16,7 +16,7 @@ impl WinningRoot {
     /// A winning root is "better" than another if it has a higher `total_attesting_balance`. Ties
     /// are broken by favouring the higher `crosslink_data_root` value.
     ///
-    /// Spec v0.6.1
+    /// Spec v0.6.3
     pub fn is_better_than(&self, other: &Self) -> bool {
         (
             self.total_attesting_balance,
@@ -34,7 +34,7 @@ impl WinningRoot {
 /// The `WinningRoot` object also contains additional fields that are useful in later stages of
 /// per-epoch processing.
 ///
-/// Spec v0.6.1
+/// Spec v0.6.3
 pub fn winning_root<T: EthSpec>(
     state: &BeaconState<T>,
     shard: u64,