Add deneb config for Chiado

CHANGELOG.md

@@ -16,5 +16,6 @@ the [releases page](https://github.com/Consensys/teku/releases).
 - Added a hidden flag `--Xfork-choice-updated-always-send-payload-attributes` which would cause
 payload attributes to be calculated and sent with every fcU. This could be useful for builders
 consuming the `payload_attributes` SSE events.
+- Added Deneb (aka Dencun) configuration for Chiado network for epoch 516608 (2024-01-31 18:15:40 UTC)
 
 ### Bug Fixes

ethereum/spec/src/main/resources/tech/pegasys/teku/spec/config/configs/chiado.yaml

@@ -156,10 +156,15 @@ BELLATRIX_FORK_EPOCH: 180 # Mon Oct 10 2022 14:00:00 GMT+0000
 # Capella
 CAPELLA_FORK_VERSION: 0x0300006f
 CAPELLA_FORK_EPOCH: 244224 # Wed May 24 2023 13:12:00 GMT+0000
+# Deneb
+DENEB_FORK_VERSION: 0x0400006f
+DENEB_FORK_EPOCH: 516608 # Wed Jan 31 2024 18:15:40 GMT+0000
 
 INACTIVITY_SCORE_BIAS: 4
 # 2**4 (= 16)
 INACTIVITY_SCORE_RECOVERY_RATE: 16
+# [New in Deneb:EIP7514] 2**3 (= 8)
+MAX_PER_EPOCH_ACTIVATION_CHURN_LIMIT: 8
 
 # Networking
 # ---------------------------------------------------------------
@@ -189,3 +194,13 @@ 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**14` (= 16384 epochs, ~15 days)
+MIN_EPOCHS_FOR_BLOB_SIDECARS_REQUESTS: 16384
+# `6`
+BLOB_SIDECAR_SUBNET_COUNT: 6

ethereum/spec/src/main/resources/tech/pegasys/teku/spec/config/presets/gnosis/deneb.yaml

@@ -0,0 +1,12 @@
+# Gnosis preset - Deneb
+
+# Misc
+# ---------------------------------------------------------------
+# `uint64(4096)`
+FIELD_ELEMENTS_PER_BLOB: 4096
+# `uint64(2**12)` (= 4096)
+MAX_BLOB_COMMITMENTS_PER_BLOCK: 4096
+# `uint64(6)`
+MAX_BLOBS_PER_BLOCK: 6
+# `floorlog2(get_generalized_index(BeaconBlockBody, 'blob_kzg_commitments')) + 1 + ceillog2(MAX_BLOB_COMMITMENTS_PER_BLOCK)` = 4 + 1 + 12 = 17
+KZG_COMMITMENT_INCLUSION_PROOF_DEPTH: 17

ethereum/spec/src/test/java/tech/pegasys/teku/spec/SpecFactoryTest.java

@@ -40,9 +40,9 @@ public class SpecFactoryTest {
   private static final Set<String> NON_BELLATRIX_NETWORKS = Set.of("swift", "less-swift");
 
   private static final Set<String> CAPELLA_NETWORKS =
-      Set.of("sepolia", "mainnet", "gnosis", "chiado", "lukso", "holesky");
+      Set.of("sepolia", "mainnet", "gnosis", "lukso", "holesky");
 
-  private static final Set<String> DENEB_NETWORKS = Set.of("prater");
+  private static final Set<String> DENEB_NETWORKS = Set.of("prater", "chiado");
 
   @Test
   public void defaultFactoryShouldScheduleBellatrixAndCapellaForMainNet() {