diff --git a/beacon_chain/spec/beaconstate.nim b/beacon_chain/spec/beaconstate.nim
index 39e78d280..76e6816d1 100644
--- a/beacon_chain/spec/beaconstate.nim
+++ b/beacon_chain/spec/beaconstate.nim
@@ -36,7 +36,7 @@ func increase_balance*(
   # Increase the validator balance at index ``index`` by ``delta``.
   state.balances[index] += delta
 
-# https://github.com/ethereum/eth2.0-specs/blob/v0.10.1/specs/phase0/beacon-chain.md#decrease_balance
+# https://github.com/ethereum/eth2.0-specs/blob/v0.11.0/specs/phase0/beacon-chain.md#decrease_balance
 func decrease_balance*(
     state: var BeaconState, index: ValidatorIndex, delta: Gwei) =
   ## Decrease the validator balance at index ``index`` by ``delta``, with
@@ -104,7 +104,7 @@ func compute_activation_exit_epoch(epoch: Epoch): Epoch =
   ## ``epoch`` take effect.
   epoch + 1 + MAX_SEED_LOOKAHEAD
 
-# https://github.com/ethereum/eth2.0-specs/blob/v0.10.1/specs/phase0/beacon-chain.md#get_validator_churn_limit
+# https://github.com/ethereum/eth2.0-specs/blob/v0.11.0/specs/phase0/beacon-chain.md#get_validator_churn_limit
 func get_validator_churn_limit(state: BeaconState): uint64 =
   # Return the validator churn limit for the current epoch.
   let active_validator_indices =
diff --git a/beacon_chain/spec/datatypes.nim b/beacon_chain/spec/datatypes.nim
index ef486915f..bf1a56dfc 100644
--- a/beacon_chain/spec/datatypes.nim
+++ b/beacon_chain/spec/datatypes.nim
@@ -57,7 +57,7 @@ else:
   loadCustomPreset const_preset
 
 const
-  SPEC_VERSION* = "0.10.1" ## \
+  SPEC_VERSION* = "0.11.0" ## \
   ## Spec version we're aiming to be compatible with, right now
 
   GENESIS_EPOCH* = (GENESIS_SLOT.uint64 div SLOTS_PER_EPOCH).Epoch ##\
@@ -145,7 +145,7 @@ type
     current_version*: array[4, byte]
     genesis_validators_root*: Eth2Digest
 
-  # https://github.com/ethereum/eth2.0-specs/blob/v0.10.1/specs/phase0/beacon-chain.md#checkpoint
+  # https://github.com/ethereum/eth2.0-specs/blob/v0.11.0/specs/phase0/beacon-chain.md#checkpoint
   Checkpoint* = object
     epoch*: Epoch
     root*: Eth2Digest
diff --git a/beacon_chain/spec/helpers.nim b/beacon_chain/spec/helpers.nim
index f9610e00e..300837cd3 100644
--- a/beacon_chain/spec/helpers.nim
+++ b/beacon_chain/spec/helpers.nim
@@ -28,7 +28,7 @@ func integer_squareroot*(n: SomeInteger): SomeInteger =
     y = (x + n div x) div 2
   x
 
-# https://github.com/ethereum/eth2.0-specs/blob/v0.10.1/specs/phase0/beacon-chain.md#compute_epoch_at_slot
+# https://github.com/ethereum/eth2.0-specs/blob/v0.11.0/specs/phase0/beacon-chain.md#compute_epoch_at_slot
 func compute_epoch_at_slot*(slot: Slot|uint64): Epoch =
   # Return the epoch number at ``slot``.
   (slot div SLOTS_PER_EPOCH).Epoch
@@ -46,7 +46,7 @@ func is_active_validator*(validator: Validator, epoch: Epoch): bool =
   ### Check if ``validator`` is active
   validator.activation_epoch <= epoch and epoch < validator.exit_epoch
 
-# https://github.com/ethereum/eth2.0-specs/blob/v0.10.1/specs/phase0/beacon-chain.md#get_active_validator_indices
+# https://github.com/ethereum/eth2.0-specs/blob/v0.11.0/specs/phase0/beacon-chain.md#get_active_validator_indices
 func get_active_validator_indices*(state: BeaconState, epoch: Epoch):
     seq[ValidatorIndex] =
   # Return the sequence of active validator indices at ``epoch``.
@@ -54,7 +54,7 @@ func get_active_validator_indices*(state: BeaconState, epoch: Epoch):
     if is_active_validator(val, epoch):
       result.add idx.ValidatorIndex
 
-# https://github.com/ethereum/eth2.0-specs/blob/v0.10.1/specs/phase0/beacon-chain.md#get_committee_count_at_slot
+# https://github.com/ethereum/eth2.0-specs/blob/v0.11.0/specs/phase0/beacon-chain.md#get_committee_count_at_slot
 func get_committee_count_at_slot*(state: BeaconState, slot: Slot): uint64 =
   # Return the number of committees at ``slot``.
   let epoch = compute_epoch_at_slot(slot)
diff --git a/beacon_chain/spec/state_transition_epoch.nim b/beacon_chain/spec/state_transition_epoch.nim
index 2e6dc1d0d..db0f5f9e2 100644
--- a/beacon_chain/spec/state_transition_epoch.nim
+++ b/beacon_chain/spec/state_transition_epoch.nim
@@ -439,7 +439,7 @@ proc process_epoch*(state: var BeaconState) {.nbench.}=
   # https://github.com/ethereum/eth2.0-specs/blob/v0.10.1/specs/phase0/beacon-chain.md#slashings
   process_slashings(state)
 
-  # https://github.com/ethereum/eth2.0-specs/blob/v0.10.1/specs/phase0/beacon-chain.md#final-updates
+  # https://github.com/ethereum/eth2.0-specs/blob/v0.11.0/specs/phase0/beacon-chain.md#final-updates
   process_final_updates(state)
 
   # Once per epoch metrics