diff --git a/Makefile b/Makefile
index 44a6d32ce..c355d4735 100644
--- a/Makefile
+++ b/Makefile
@@ -3,7 +3,7 @@
 		spec-test-% spec-test spec-test-config-% spec-test-runner-% \
 		spec-test-mainnet-% spec-test-minimal-% spec-test-general-% \
 		clean-tests gen-spec compile-all download-beacon-node-oapi test-iex \
-		sepolia holesky gnosis
+		sepolia holesky gnosis hoodi
 
 # Delete current file when command fails
 .DELETE_ON_ERROR:
@@ -204,6 +204,14 @@ gnosis: compile-all
 gnosis.logfile: compile-all
 	iex -S mix run -- --checkpoint-sync-url https://checkpoint.gnosischain.com --network gnosis --metrics --metrics-port $(METRICS_PORT) --log-file ./logs/gnosis.log --discovery-port $(DISCOVERY_PORT) --mode $(MODE)
 
+#▶️ hoodi: @ Run an interactive terminal using hoodi network
+hoodi: compile-all
+	iex -S mix run -- --checkpoint-sync-url https://checkpoint-sync.hoodi.ethpandaops.io --network hoodi --metrics --metrics-port $(METRICS_PORT) --discovery-port $(DISCOVERY_PORT) --mode $(MODE)
+
+#▶️ hoodi.logfile: @ Run an interactive terminal using hoodi network with a log file
+hoodi.logfile: compile-all
+	iex -S mix run -- --checkpoint-sync-url https://checkpoint-sync.hoodi.ethpandaops.io --network hoodi --metrics --metrics-port $(METRICS_PORT) --log-file ./logs/hoodi.log --discovery-port $(DISCOVERY_PORT) --mode $(MODE)
+
 #▶️ checkpoint-sync: @ Run an interactive terminal using checkpoint sync for mainnet.
 checkpoint-sync: mainnet
 
diff --git a/config/networks/holesky/config.yaml b/config/networks/holesky/config.yaml
index e6d5edbcb..eabd9357f 100644
--- a/config/networks/holesky/config.yaml
+++ b/config/networks/holesky/config.yaml
@@ -1,5 +1,5 @@
 # Extends the mainnet preset
-PRESET_BASE: "mainnet"
+PRESET_BASE: 'mainnet'
 CONFIG_NAME: holesky
 
 # Genesis
@@ -12,6 +12,7 @@ GENESIS_FORK_VERSION: 0x01017000
 # Genesis delay 5 mins
 GENESIS_DELAY: 300
 
+
 # Forking
 # ---------------------------------------------------------------
 # Some forks are disabled for now:
@@ -36,6 +37,10 @@ CAPELLA_FORK_EPOCH: 256
 DENEB_FORK_VERSION: 0x05017000
 DENEB_FORK_EPOCH: 29696
 
+# Electra
+ELECTRA_FORK_VERSION: 0x06017000
+ELECTRA_FORK_EPOCH: 115968
+
 # Time parameters
 # ---------------------------------------------------------------
 # 12 seconds
@@ -49,6 +54,7 @@ SHARD_COMMITTEE_PERIOD: 256
 # 2**11 (= 2,048) Eth1 blocks ~8 hours
 ETH1_FOLLOW_DISTANCE: 2048
 
+
 # Validator cycle
 # ---------------------------------------------------------------
 # 2**2 (= 4)
@@ -68,6 +74,12 @@ MAX_PER_EPOCH_ACTIVATION_CHURN_LIMIT: 8
 # ---------------------------------------------------------------
 # 40%
 PROPOSER_SCORE_BOOST: 40
+# 20%
+REORG_HEAD_WEIGHT_THRESHOLD: 20
+# 160%
+REORG_PARENT_WEIGHT_THRESHOLD: 160
+# `2` epochs
+REORG_MAX_EPOCHS_SINCE_FINALIZATION: 2
 
 # Deposit contract
 # ---------------------------------------------------------------
@@ -78,15 +90,13 @@ DEPOSIT_CONTRACT_ADDRESS: 0x4242424242424242424242424242424242424242
 # Networking
 # ---------------------------------------------------------------
 # `10 * 2**20` (= 10485760, 10 MiB)
-GOSSIP_MAX_SIZE: 10485760
+MAX_PAYLOAD_SIZE: 10485760
 # `2**10` (= 1024)
 MAX_REQUEST_BLOCKS: 1024
 # `2**8` (= 256)
 EPOCHS_PER_SUBNET_SUBSCRIPTION: 256
 # `MIN_VALIDATOR_WITHDRAWABILITY_DELAY + CHURN_LIMIT_QUOTIENT // 2` (= 33024, ~5 months)
 MIN_EPOCHS_FOR_BLOCK_REQUESTS: 33024
-# `10 * 2**20` (=10485760, 10 MiB)
-MAX_CHUNK_SIZE: 10485760
 # 5s
 TTFB_TIMEOUT: 5
 # 10s
@@ -113,3 +123,15 @@ MAX_REQUEST_BLOB_SIDECARS: 768
 MIN_EPOCHS_FOR_BLOB_SIDECARS_REQUESTS: 4096
 # `6`
 BLOB_SIDECAR_SUBNET_COUNT: 6
+
+# Electra
+# 2**7 * 10**9 (= 128,000,000,000)
+MIN_PER_EPOCH_CHURN_LIMIT_ELECTRA: 128000000000
+# 2**8 * 10**9 (= 256,000,000,000)
+MAX_PER_EPOCH_ACTIVATION_EXIT_CHURN_LIMIT: 256000000000
+# `9`
+BLOB_SIDECAR_SUBNET_COUNT_ELECTRA: 9
+# `uint64(9)`
+MAX_BLOBS_PER_BLOCK_ELECTRA: 9
+# MAX_REQUEST_BLOCKS_DENEB * MAX_BLOBS_PER_BLOCK_ELECTRA
+MAX_REQUEST_BLOB_SIDECARS_ELECTRA: 1152
diff --git a/config/networks/hoodi/boot_enr.yaml b/config/networks/hoodi/boot_enr.yaml
new file mode 100644
index 000000000..0340f5a0e
--- /dev/null
+++ b/config/networks/hoodi/boot_enr.yaml
@@ -0,0 +1,9 @@
+- enr:-Mq4QLkmuSwbGBUph1r7iHopzRpdqE-gcm5LNZfcE-6T37OCZbRHi22bXZkaqnZ6XdIyEDTelnkmMEQB8w6NbnJUt9GGAZWaowaYh2F0dG5ldHOIABgAAAAAAACEZXRoMpDS8Zl_YAAJEAAIAAAAAAAAgmlkgnY0gmlwhNEmfKCEcXVpY4IyyIlzZWNwMjU2azGhA0hGa4jZJZYQAS-z6ZFK-m4GCFnWS8wfjO0bpSQn6hyEiHN5bmNuZXRzAIN0Y3CCIyiDdWRwgiMo
+- enr:-Ku4QLVumWTwyOUVS4ajqq8ZuZz2ik6t3Gtq0Ozxqecj0qNZWpMnudcvTs-4jrlwYRQMQwBS8Pvtmu4ZPP2Lx3i2t7YBh2F0dG5ldHOIAAAAAAAAAACEZXRoMpBd9cEGEAAJEP__________gmlkgnY0gmlwhNEmfKCJc2VjcDI1NmsxoQLdRlI8aCa_ELwTJhVN8k7km7IDc3pYu-FMYBs5_FiigIN1ZHCCIyk
+- enr:-LK4QAYuLujoiaqCAs0-qNWj9oFws1B4iy-Hff1bRB7wpQCYSS-IIMxLWCn7sWloTJzC1SiH8Y7lMQ5I36ynGV1ASj4Eh2F0dG5ldHOIYAAAAAAAAACEZXRoMpDS8Zl_YAAJEAAIAAAAAAAAgmlkgnY0gmlwhIbRilSJc2VjcDI1NmsxoQOmI5MlAu3f5WEThAYOqoygpS2wYn0XS5NV2aYq7T0a04N0Y3CCIyiDdWRwgiMo
+- enr:-Ku4QIC89sMC0o-irosD4_23lJJ4qCGOvdUz7SmoShWx0k6AaxCFTKviEHa-sa7-EzsiXpDp0qP0xzX6nKdXJX3X-IQBh2F0dG5ldHOIAAAAAAAAAACEZXRoMpBd9cEGEAAJEP__________gmlkgnY0gmlwhIbRilSJc2VjcDI1NmsxoQK_m0f1DzDc9Cjrspm36zuRa7072HSiMGYWLsKiVSbP34N1ZHCCIyk
+- enr:-Ku4QNkWjw5tNzo8DtWqKm7CnDdIq_y7xppD6c1EZSwjB8rMOkSFA1wJPLoKrq5UvA7wcxIotH6Usx3PAugEN2JMncIBh2F0dG5ldHOIAAAAAAAAAACEZXRoMpBd9cEGEAAJEP__________gmlkgnY0gmlwhIbHuBeJc2VjcDI1NmsxoQP3FwrhFYB60djwRjAoOjttq6du94DtkQuaN99wvgqaIYN1ZHCCIyk
+- enr:-OS4QMJGE13xEROqvKN1xnnt7U-noc51VXyM6wFMuL9LMhQDfo1p1dF_zFdS4OsnXz_vIYk-nQWnqJMWRDKvkSK6_CwDh2F0dG5ldHOIAAAAADAAAACGY2xpZW502IpMaWdodGhvdXNljDcuMC4wLWJldGEuM4RldGgykNLxmX9gAAkQAAgAAAAAAACCaWSCdjSCaXCEhse4F4RxdWljgiMqiXNlY3AyNTZrMaECef77P8k5l3PC_raLw42OAzdXfxeQ-58BJriNaqiRGJSIc3luY25ldHMAg3RjcIIjKIN1ZHCCIyg
+- enr:-LK4QDwhXMitMbC8xRiNL-XGMhRyMSOnxej-zGifjv9Nm5G8EF285phTU-CAsMHRRefZimNI7eNpAluijMQP7NDC8kEMh2F0dG5ldHOIAAAAAAAABgCEZXRoMpDS8Zl_YAAJEAAIAAAAAAAAgmlkgnY0gmlwhAOIT_SJc2VjcDI1NmsxoQMoHWNL4MAvh6YpQeM2SUjhUrLIPsAVPB8nyxbmckC6KIN0Y3CCIyiDdWRwgiMo
+- enr:-LK4QPYl2HnMPQ7b1es6Nf_tFYkyya5bj9IqAKOEj2cmoqVkN8ANbJJJK40MX4kciL7pZszPHw6vLNyeC-O3HUrLQv8Mh2F0dG5ldHOIAAAAAAAAAMCEZXRoMpDS8Zl_YAAJEAAIAAAAAAAAgmlkgnY0gmlwhAMYRG-Jc2VjcDI1NmsxoQPQ35tjr6q1qUqwAnegQmYQyfqxC_6437CObkZneI9n34N0Y3CCIyiDdWRwgiMo
+- enr:-KG4QJk_4IQHQw3DAdKIuGcEauKU8-nmRPPMj_hIQPRHmsFGMPPeOj6_xX09aHCndOzLnOZimVRzNM56_EQWYVbEpJMBgmlkgnY0gmlwhLkvrBODaXA2kP6AAAAAAAAAAhY-__4PR6OJc2VjcDI1NmsxoQPU7g2jQGTz8BYbB2vLTb39S_PrcZAehwMM0b3bWsM5rIN1ZHCCIyiEdWRwNoIjKA
diff --git a/config/networks/hoodi/config.yaml b/config/networks/hoodi/config.yaml
new file mode 100644
index 000000000..5cca1cd03
--- /dev/null
+++ b/config/networks/hoodi/config.yaml
@@ -0,0 +1,163 @@
+# Extends the mainnet preset
+PRESET_BASE: mainnet
+CONFIG_NAME: hoodi
+
+# Genesis
+# ---------------------------------------------------------------
+# `2**14` (= 16,384)
+MIN_GENESIS_ACTIVE_VALIDATOR_COUNT: 16384
+# 2025-Mar-17 12:00:00 PM UTC
+MIN_GENESIS_TIME: 1742212800
+GENESIS_FORK_VERSION: 0x10000910
+GENESIS_DELAY: 600
+
+
+# Forking
+# ---------------------------------------------------------------
+# Some forks are disabled for now:
+#  - These may be re-assigned to another fork-version later
+#  - Temporarily set to max uint64 value: 2**64 - 1
+
+# Altair
+ALTAIR_FORK_VERSION: 0x20000910
+ALTAIR_FORK_EPOCH: 0
+# Merge
+BELLATRIX_FORK_VERSION: 0x30000910
+BELLATRIX_FORK_EPOCH: 0
+TERMINAL_TOTAL_DIFFICULTY: 0
+TERMINAL_BLOCK_HASH: 0x0000000000000000000000000000000000000000000000000000000000000000
+TERMINAL_BLOCK_HASH_ACTIVATION_EPOCH: 18446744073709551615
+
+# Capella
+CAPELLA_FORK_VERSION: 0x40000910
+CAPELLA_FORK_EPOCH: 0
+
+# DENEB
+DENEB_FORK_VERSION: 0x50000910
+DENEB_FORK_EPOCH: 0
+
+# Electra
+ELECTRA_FORK_VERSION: 0x60000910
+ELECTRA_FORK_EPOCH: 2048
+
+# Fulu
+FULU_FORK_VERSION: 0x70000910
+FULU_FORK_EPOCH: 18446744073709551615
+
+
+# Time parameters
+# ---------------------------------------------------------------
+# 12 seconds
+SECONDS_PER_SLOT: 12
+# 14 (estimate from Eth1 mainnet)
+SECONDS_PER_ETH1_BLOCK: 12
+# 2**8 (= 256) epochs ~27 hours
+MIN_VALIDATOR_WITHDRAWABILITY_DELAY: 256
+# 2**8 (= 256) epochs ~27 hours
+SHARD_COMMITTEE_PERIOD: 256
+# 2**11 (= 2,048) Eth1 blocks ~8 hours
+ETH1_FOLLOW_DISTANCE: 2048
+
+# Validator cycle
+# ---------------------------------------------------------------
+# 2**2 (= 4)
+INACTIVITY_SCORE_BIAS: 4
+# 2**4 (= 16)
+INACTIVITY_SCORE_RECOVERY_RATE: 16
+# 2**4 * 10**9 (= 16,000,000,000) Gwei
+EJECTION_BALANCE: 16000000000
+# 2**2 (= 4)
+MIN_PER_EPOCH_CHURN_LIMIT: 4
+# 2**16 (= 65,536)
+CHURN_LIMIT_QUOTIENT: 65536
+# [New in Deneb:EIP7514] 2**3 (= 8)
+MAX_PER_EPOCH_ACTIVATION_CHURN_LIMIT: 8
+
+# Fork choice
+# ---------------------------------------------------------------
+# 40%
+PROPOSER_SCORE_BOOST: 40
+# 20%
+REORG_HEAD_WEIGHT_THRESHOLD: 20
+# 160%
+REORG_PARENT_WEIGHT_THRESHOLD: 160
+# `2` epochs
+REORG_MAX_EPOCHS_SINCE_FINALIZATION: 2
+
+# Deposit contract
+# ---------------------------------------------------------------
+DEPOSIT_CHAIN_ID: 560048
+DEPOSIT_NETWORK_ID: 560048
+DEPOSIT_CONTRACT_ADDRESS: 0x00000000219ab540356cBB839Cbe05303d7705Fa
+
+# Networking
+# ---------------------------------------------------------------
+# `10 * 2**20` (= 10485760, 10 MiB)
+MAX_PAYLOAD_SIZE: 10485760
+# `2**10` (= 1024)
+MAX_REQUEST_BLOCKS: 1024
+# `2**8` (= 256)
+EPOCHS_PER_SUBNET_SUBSCRIPTION: 256
+# `MIN_VALIDATOR_WITHDRAWABILITY_DELAY + CHURN_LIMIT_QUOTIENT // 2` (= 33024, ~5 months)
+MIN_EPOCHS_FOR_BLOCK_REQUESTS: 33024
+# 5s
+TTFB_TIMEOUT: 5
+# 10s
+RESP_TIMEOUT: 10
+ATTESTATION_PROPAGATION_SLOT_RANGE: 32
+# 500ms
+MAXIMUM_GOSSIP_CLOCK_DISPARITY: 500
+MESSAGE_DOMAIN_INVALID_SNAPPY: 0x00000000
+MESSAGE_DOMAIN_VALID_SNAPPY: 0x01000000
+# 2 subnets per node
+SUBNETS_PER_NODE: 2
+# 2**8 (= 64)
+ATTESTATION_SUBNET_COUNT: 64
+ATTESTATION_SUBNET_EXTRA_BITS: 0
+# ceillog2(ATTESTATION_SUBNET_COUNT) + ATTESTATION_SUBNET_EXTRA_BITS
+ATTESTATION_SUBNET_PREFIX_BITS: 6
+
+# Deneb
+# `2**7` (=128)
+MAX_REQUEST_BLOCKS_DENEB: 128
+# MAX_REQUEST_BLOCKS_DENEB * MAX_BLOBS_PER_BLOCK
+MAX_REQUEST_BLOB_SIDECARS: 768
+# `2**12` (= 4096 epochs, ~18 days)
+MIN_EPOCHS_FOR_BLOB_SIDECARS_REQUESTS: 4096
+# `6`
+BLOB_SIDECAR_SUBNET_COUNT: 6
+## `uint64(6)`
+MAX_BLOBS_PER_BLOCK: 6
+
+# Electra
+# 2**7 * 10**9 (= 128,000,000,000)
+MIN_PER_EPOCH_CHURN_LIMIT_ELECTRA: 128000000000
+# 2**8 * 10**9 (= 256,000,000,000)
+MAX_PER_EPOCH_ACTIVATION_EXIT_CHURN_LIMIT: 256000000000
+# `9`
+BLOB_SIDECAR_SUBNET_COUNT_ELECTRA: 9
+# `uint64(6)`
+TARGET_BLOBS_PER_BLOCK_ELECTRA: 6
+# `uint64(9)`
+MAX_BLOBS_PER_BLOCK_ELECTRA: 9
+# MAX_REQUEST_BLOCKS_DENEB * MAX_BLOBS_PER_BLOCK_ELECTRA
+MAX_REQUEST_BLOB_SIDECARS_ELECTRA: 1152
+
+# Whisk
+# `Epoch(2**8)`
+WHISK_EPOCHS_PER_SHUFFLING_PHASE: 256
+# `Epoch(2)`
+WHISK_PROPOSER_SELECTION_GAP: 2
+
+# Fulu
+NUMBER_OF_COLUMNS: 128
+NUMBER_OF_CUSTODY_GROUPS: 128
+DATA_COLUMN_SIDECAR_SUBNET_COUNT: 128
+MAX_REQUEST_DATA_COLUMN_SIDECARS: 16384
+SAMPLES_PER_SLOT: 8
+CUSTODY_REQUIREMENT: 4
+MAX_BLOBS_PER_BLOCK_FULU: 12
+MIN_EPOCHS_FOR_DATA_COLUMN_SIDECARS_REQUESTS: 4096
+
+# EIP7732
+MAX_REQUEST_PAYLOADS: 128
diff --git a/config/networks/mainnet/config.yaml b/config/networks/mainnet/config.yaml
index 6db16ed68..e4189bd5f 100644
--- a/config/networks/mainnet/config.yaml
+++ b/config/networks/mainnet/config.yaml
@@ -1,14 +1,16 @@
 # Mainnet config
 
 # Extends the mainnet preset
-PRESET_BASE: "mainnet"
+PRESET_BASE: 'mainnet'
 
 # Free-form short name of the network that this configuration applies to - known
 # canonical network names include:
 # * 'mainnet' - there can be only one
-# * 'prater' - testnet
+# * 'sepolia' - testnet
+# * 'holesky' - testnet
+# * 'hoodi' - testnet
 # Must match the regex: [a-z0-9\-]
-CONFIG_NAME: "mainnet"
+CONFIG_NAME: 'mainnet'
 
 # Transition
 # ---------------------------------------------------------------
@@ -18,6 +20,7 @@ TERMINAL_TOTAL_DIFFICULTY: 58750000000000000000000
 TERMINAL_BLOCK_HASH: 0x0000000000000000000000000000000000000000000000000000000000000000
 TERMINAL_BLOCK_HASH_ACTIVATION_EPOCH: 18446744073709551615
 
+
 # Genesis
 # ---------------------------------------------------------------
 # `2**14` (= 16,384)
@@ -29,6 +32,7 @@ GENESIS_FORK_VERSION: 0x00000000
 # 604800 seconds (7 days)
 GENESIS_DELAY: 604800
 
+
 # Forking
 # ---------------------------------------------------------------
 # Some forks are disabled for now:
@@ -37,25 +41,20 @@ GENESIS_DELAY: 604800
 
 # Altair
 ALTAIR_FORK_VERSION: 0x01000000
-ALTAIR_FORK_EPOCH: 74240 # Oct 27, 2021, 10:56:23am UTC
+ALTAIR_FORK_EPOCH: 74240  # Oct 27, 2021, 10:56:23am UTC
 # Bellatrix
 BELLATRIX_FORK_VERSION: 0x02000000
-BELLATRIX_FORK_EPOCH: 144896 # Sept 6, 2022, 11:34:47am UTC
+BELLATRIX_FORK_EPOCH: 144896  # Sept 6, 2022, 11:34:47am UTC
 # Capella
 CAPELLA_FORK_VERSION: 0x03000000
-CAPELLA_FORK_EPOCH: 194048 # April 12, 2023, 10:27:35pm UTC
+CAPELLA_FORK_EPOCH: 194048  # April 12, 2023, 10:27:35pm UTC
 # Deneb
 DENEB_FORK_VERSION: 0x04000000
-DENEB_FORK_EPOCH: 269568 # March 13, 2024, 01:55:35pm UTC
-# EIP6110
-EIP6110_FORK_VERSION: 0x05000000 # temporary stub
-EIP6110_FORK_EPOCH: 18446744073709551615
-# EIP7002
-EIP7002_FORK_VERSION: 0x05000000 # temporary stub
-EIP7002_FORK_EPOCH: 18446744073709551615
-# WHISK
-WHISK_FORK_VERSION: 0x06000000 # temporary stub
-WHISK_FORK_EPOCH: 18446744073709551615
+DENEB_FORK_EPOCH: 269568  # March 13, 2024, 01:55:35pm UTC
+# Electra
+ELECTRA_FORK_VERSION: 0x05000000
+ELECTRA_FORK_EPOCH: 364032  # May 7, 2025, 10:05:11am UTC
+
 
 # Time parameters
 # ---------------------------------------------------------------
@@ -70,6 +69,7 @@ SHARD_COMMITTEE_PERIOD: 256
 # 2**11 (= 2,048) Eth1 blocks ~8 hours
 ETH1_FOLLOW_DISTANCE: 2048
 
+
 # Validator cycle
 # ---------------------------------------------------------------
 # 2**2 (= 4)
@@ -96,6 +96,7 @@ REORG_PARENT_WEIGHT_THRESHOLD: 160
 # `2` epochs
 REORG_MAX_EPOCHS_SINCE_FINALIZATION: 2
 
+
 # Deposit contract
 # ---------------------------------------------------------------
 # Ethereum PoW Mainnet
@@ -103,18 +104,17 @@ DEPOSIT_CHAIN_ID: 1
 DEPOSIT_NETWORK_ID: 1
 DEPOSIT_CONTRACT_ADDRESS: 0x00000000219ab540356cBB839Cbe05303d7705Fa
 
+
 # Networking
 # ---------------------------------------------------------------
 # `10 * 2**20` (= 10485760, 10 MiB)
-GOSSIP_MAX_SIZE: 10485760
+MAX_PAYLOAD_SIZE: 10485760
 # `2**10` (= 1024)
 MAX_REQUEST_BLOCKS: 1024
 # `2**8` (= 256)
 EPOCHS_PER_SUBNET_SUBSCRIPTION: 256
 # `MIN_VALIDATOR_WITHDRAWABILITY_DELAY + CHURN_LIMIT_QUOTIENT // 2` (= 33024, ~5 months)
 MIN_EPOCHS_FOR_BLOCK_REQUESTS: 33024
-# `10 * 2**20` (=10485760, 10 MiB)
-MAX_CHUNK_SIZE: 10485760
 # 5s
 TTFB_TIMEOUT: 5
 # 10s
@@ -135,29 +135,21 @@ ATTESTATION_SUBNET_PREFIX_BITS: 6
 # Deneb
 # `2**7` (=128)
 MAX_REQUEST_BLOCKS_DENEB: 128
+# MAX_REQUEST_BLOCKS_DENEB * MAX_BLOBS_PER_BLOCK
+MAX_REQUEST_BLOB_SIDECARS: 768
 # `2**12` (= 4096 epochs, ~18 days)
 MIN_EPOCHS_FOR_BLOB_SIDECARS_REQUESTS: 4096
 # `6`
 BLOB_SIDECAR_SUBNET_COUNT: 6
-## 6 blobs
-MAX_BLOBS_PER_BLOCK: 6
-# MAX_REQUEST_BLOCKS_DENEB * MAX_BLOBS_PER_BLOCK (= 128 * 6) sidecars
-MAX_REQUEST_BLOB_SIDECARS: 768
-
-# Whisk
-# `Epoch(2**8)`
-WHISK_EPOCHS_PER_SHUFFLING_PHASE: 256
-# `Epoch(2)`
-WHISK_PROPOSER_SELECTION_GAP: 2
-
-# EIP7594
-EIP7594_FORK_VERSION: 0x06000001
-EIP7594_FORK_EPOCH: 18446744073709551615
 
 # Electra
-# 2**7 * 10**9 (= 128,000,000,000) Gwei
+# 2**7 * 10**9 (= 128,000,000,000)
 MIN_PER_EPOCH_CHURN_LIMIT_ELECTRA: 128000000000
-# 2**8 * 10**9) (= 256,000,000,000) Gwei
+# 2**8 * 10**9 (= 256,000,000,000)
 MAX_PER_EPOCH_ACTIVATION_EXIT_CHURN_LIMIT: 256000000000
-# 9
+# `9`
+BLOB_SIDECAR_SUBNET_COUNT_ELECTRA: 9
+# `uint64(9)`
 MAX_BLOBS_PER_BLOCK_ELECTRA: 9
+# MAX_REQUEST_BLOCKS_DENEB * MAX_BLOBS_PER_BLOCK_ELECTRA
+MAX_REQUEST_BLOB_SIDECARS_ELECTRA: 1152
diff --git a/config/networks/sepolia/boot_enr.yaml b/config/networks/sepolia/boot_enr.yaml
index d0bb94393..1797ae6b0 100644
--- a/config/networks/sepolia/boot_enr.yaml
+++ b/config/networks/sepolia/boot_enr.yaml
@@ -1,5 +1,11 @@
-- enode://4e5e92199ee224a01932a377160aa432f31d0b351f84ab413a8e0a42f4f36476f8fb1cbe914af0d9aef0d51665c214cf653c651c4bbd9d5550a934f241f1682b@138.197.51.181:30303
-- enode://143e11fb766781d22d92a2e33f8f104cddae4411a122295ed1fdb6638de96a6ce65f5b7c964ba3763bba27961738fef7d3ecc739268f3e5e771fb4c87b6234ba@146.190.1.103:30303
-- enode://8b61dc2d06c3f96fddcbebb0efb29d60d3598650275dc469c22229d3e5620369b0d3dedafd929835fe7f489618f19f456fe7c0df572bf2d914a9f4e006f783a9@170.64.250.88:30303
-- enode://10d62eff032205fcef19497f35ca8477bea0eadfff6d769a147e895d8b2b8f8ae6341630c645c30f5df6e67547c03494ced3d9c5764e8622a26587b083b028e8@139.59.49.206:30303
-- enode://9e9492e2e8836114cc75f5b929784f4f46c324ad01daf87d956f98b3b6c5fcba95524d6e5cf9861dc96a2c8a171ea7105bb554a197455058de185fa870970c7c@138.68.123.152:30303
\ No newline at end of file
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diff --git a/config/networks/sepolia/config.yaml b/config/networks/sepolia/config.yaml
index b07664d05..f80cbd20d 100644
--- a/config/networks/sepolia/config.yaml
+++ b/config/networks/sepolia/config.yaml
@@ -1,6 +1,6 @@
 # Extends the mainnet preset
-PRESET_BASE: "mainnet"
-CONFIG_NAME: "sepolia"
+PRESET_BASE: 'mainnet'
+CONFIG_NAME: 'sepolia'
 
 # Genesis
 # ---------------------------------------------------------------
@@ -10,6 +10,7 @@ MIN_GENESIS_TIME: 1655647200
 GENESIS_FORK_VERSION: 0x90000069
 GENESIS_DELAY: 86400
 
+
 # Forking
 # ---------------------------------------------------------------
 # Some forks are disabled for now:
@@ -35,6 +36,10 @@ CAPELLA_FORK_EPOCH: 56832
 DENEB_FORK_VERSION: 0x90000073
 DENEB_FORK_EPOCH: 132608
 
+# Electra
+ELECTRA_FORK_VERSION: 0x90000074
+ELECTRA_FORK_EPOCH: 222464
+
 # Time parameters
 # ---------------------------------------------------------------
 # 12 seconds
@@ -48,6 +53,7 @@ SHARD_COMMITTEE_PERIOD: 256
 # 2**11 (= 2,048) Eth1 blocks ~8 hours
 ETH1_FOLLOW_DISTANCE: 2048
 
+
 # Validator cycle
 # ---------------------------------------------------------------
 # 2**2 (= 4)
@@ -67,6 +73,12 @@ MAX_PER_EPOCH_ACTIVATION_CHURN_LIMIT: 8
 # ---------------------------------------------------------------
 # 40%
 PROPOSER_SCORE_BOOST: 40
+# 20%
+REORG_HEAD_WEIGHT_THRESHOLD: 20
+# 160%
+REORG_PARENT_WEIGHT_THRESHOLD: 160
+# `2` epochs
+REORG_MAX_EPOCHS_SINCE_FINALIZATION: 2
 
 # Deposit contract
 # ---------------------------------------------------------------
@@ -77,15 +89,13 @@ DEPOSIT_CONTRACT_ADDRESS: 0x7f02C3E3c98b133055B8B348B2Ac625669Ed295D
 # Networking
 # ---------------------------------------------------------------
 # `10 * 2**20` (= 10485760, 10 MiB)
-GOSSIP_MAX_SIZE: 10485760
+MAX_PAYLOAD_SIZE: 10485760
 # `2**10` (= 1024)
 MAX_REQUEST_BLOCKS: 1024
 # `2**8` (= 256)
 EPOCHS_PER_SUBNET_SUBSCRIPTION: 256
 # `MIN_VALIDATOR_WITHDRAWABILITY_DELAY + CHURN_LIMIT_QUOTIENT // 2` (= 33024, ~5 months)
 MIN_EPOCHS_FOR_BLOCK_REQUESTS: 33024
-# `10 * 2**20` (=10485760, 10 MiB)
-MAX_CHUNK_SIZE: 10485760
 # 5s
 TTFB_TIMEOUT: 5
 # 10s
@@ -112,3 +122,17 @@ MAX_REQUEST_BLOB_SIDECARS: 768
 MIN_EPOCHS_FOR_BLOB_SIDECARS_REQUESTS: 4096
 # `6`
 BLOB_SIDECAR_SUBNET_COUNT: 6
+# `uint64(6)`
+MAX_BLOBS_PER_BLOCK: 6
+
+# Electra
+# 2**7 * 10**9 (= 128,000,000,000)
+MIN_PER_EPOCH_CHURN_LIMIT_ELECTRA: 128000000000
+# 2**8 * 10**9 (= 256,000,000,000)
+MAX_PER_EPOCH_ACTIVATION_EXIT_CHURN_LIMIT: 256000000000
+# `9`
+BLOB_SIDECAR_SUBNET_COUNT_ELECTRA: 9
+# `uint64(9)`
+MAX_BLOBS_PER_BLOCK_ELECTRA: 9
+# MAX_REQUEST_BLOCKS_DENEB * MAX_BLOBS_PER_BLOCK_ELECTRA
+MAX_REQUEST_BLOB_SIDECARS_ELECTRA: 1152
\ No newline at end of file
diff --git a/config/runtime.exs b/config/runtime.exs
index d6f0a6b4f..76687466e 100644
--- a/config/runtime.exs
+++ b/config/runtime.exs
@@ -204,6 +204,7 @@ block_time_ms =
     "mainnet" -> 12_000
     "sepolia" -> 100
     "holesky" -> 24_000
+    "hoodi" -> 12_000
     # Default to mainnet
     _ -> 12_000
   end
diff --git a/lib/chain_spec/chain_spec.ex b/lib/chain_spec/chain_spec.ex
index 9bc89b6cd..f0ff64f6b 100644
--- a/lib/chain_spec/chain_spec.ex
+++ b/lib/chain_spec/chain_spec.ex
@@ -9,10 +9,10 @@ defmodule ChainSpec do
   def get_preset(), do: get_config().get("PRESET_BASE") |> String.to_atom()
 
   def get_fork_version_for_epoch(epoch) do
-    if epoch >= get("DENEB_FORK_EPOCH") do
-      get("DENEB_FORK_VERSION")
+    if epoch >= get("ELECTRA_FORK_EPOCH") do
+      get("ELECTRA_FORK_VERSION")
     else
-      raise "Forks before Deneb are not supported"
+      raise "Forks before Electra are not supported"
     end
   end
 
diff --git a/lib/chain_spec/configs/hoodi.ex b/lib/chain_spec/configs/hoodi.ex
new file mode 100644
index 000000000..19b17e806
--- /dev/null
+++ b/lib/chain_spec/configs/hoodi.ex
@@ -0,0 +1,11 @@
+defmodule HoodiConfig do
+  @moduledoc """
+  Hoodi config constants.
+  """
+  use ChainSpec.GenConfig, file: "config/networks/hoodi/config.yaml"
+
+  genesis_validators_root =
+    Base.decode16!("212F13FC4DF078B6CB7DB228F1C8307566DCECF900867401A92023D7BA99CB5F")
+
+  def genesis_validators_root(), do: unquote(genesis_validators_root)
+end
diff --git a/lib/chain_spec/utils.ex b/lib/chain_spec/utils.ex
index 54ab7a358..5a32b994e 100644
--- a/lib/chain_spec/utils.ex
+++ b/lib/chain_spec/utils.ex
@@ -30,6 +30,7 @@ defmodule ConfigUtils do
   def parse_config("holesky"), do: HoleskyConfig
   def parse_config("minimal"), do: MinimalConfig
   def parse_config("gnosis"), do: GnosisConfig
+  def parse_config("hoodi"), do: HoodiConfig
   def parse_config(_), do: :unknown
 
   def parse_config!(config) do