diff --git a/cabal.project b/cabal.project
index 30bffd7256..6f3845d8ae 100644
--- a/cabal.project
+++ b/cabal.project
@@ -14,7 +14,7 @@ repository cardano-haskell-packages
 -- you need to run if you change them
 index-state:
   , hackage.haskell.org 2024-10-10T08:11:33Z
-  , cardano-haskell-packages 2024-10-14T23:19:53Z
+  , cardano-haskell-packages 2024-10-21T06:28:35Z
 
 packages:
     cardano-api
@@ -52,3 +52,13 @@ write-ghc-environment-files: always
 constraints:
     Cabal < 3.14,
     cardano-ledger-shelley ^>= 1.14.1
+
+-- coot/typed-protocols-new-api
+source-repository-package
+  type: git
+  location: https://github.com/IntersectMBO/ouroboros-consensus
+  tag: 254aa51558cc71baa5d23faa4bdb5b3ae1e7ba70
+  --sha256: sha256-Drnc35CQFB5QrYgHFYaqwn7Tnc8p11KJq3vp9DvpKoE=
+  subdir: ouroboros-consensus
+          ouroboros-consensus-cardano
+          ouroboros-consensus-diffusion
diff --git a/cardano-api/cardano-api.cabal b/cardano-api/cardano-api.cabal
index c2a1899aea..9c365ea6e0 100644
--- a/cardano-api/cardano-api.cabal
+++ b/cardano-api/cardano-api.cabal
@@ -203,7 +203,7 @@ library internal
     ouroboros-consensus-diffusion ^>=0.18,
     ouroboros-consensus-protocol ^>=0.9.0.2,
     ouroboros-network,
-    ouroboros-network-api ^>=0.10,
+    ouroboros-network-api ^>=0.11,
     ouroboros-network-framework,
     ouroboros-network-protocols,
     parsec,
@@ -222,7 +222,7 @@ library internal
     time,
     transformers,
     transformers-except ^>=0.1.3,
-    typed-protocols ^>=0.1.1,
+    typed-protocols ^>=0.3,
     vector,
     yaml,
 
@@ -257,7 +257,7 @@ library
     memory,
     nothunks,
     ouroboros-network-protocols,
-    typed-protocols ^>=0.1.1,
+    typed-protocols,
 
 library gen
   import: project-config
diff --git a/cardano-api/internal/Cardano/Api/IPC.hs b/cardano-api/internal/Cardano/Api/IPC.hs
index c277fc35a5..f99dc11765 100644
--- a/cardano-api/internal/Cardano/Api/IPC.hs
+++ b/cardano-api/internal/Cardano/Api/IPC.hs
@@ -122,6 +122,7 @@ import qualified Ouroboros.Network.Protocol.LocalTxSubmission.Client as Net.Tx
 
 import           Control.Concurrent.STM (TMVar, atomically, newEmptyTMVarIO, putTMVar, takeTMVar,
                    tryPutTMVar)
+import           Control.Exception (SomeException, throwIO)
 import           Control.Monad (void)
 import           Control.Monad.IO.Class
 import           Control.Tracer (nullTracer)
@@ -202,8 +203,8 @@ connectToLocalNodeWithVersion
     , localConsensusModeParams
     }
   clients =
-    liftIO $ Net.withIOManager $ \iomgr ->
-      Net.connectTo
+    liftIO $ Net.withIOManager $ \iomgr -> do
+      r <- Net.connectTo
         (Net.localSnocket iomgr)
         Net.NetworkConnectTracers
           { Net.nctMuxTracer = nullTracer
@@ -211,6 +212,9 @@ connectToLocalNodeWithVersion
           }
         versionedProtocls
         (unFile localNodeSocketPath)
+      case r of
+        Left e  -> throwIO e
+        Right _ -> pure ()
    where
     versionedProtocls =
       -- First convert from the mode-parametrised view of things to the
@@ -302,10 +306,11 @@ mkVersionedProtocols networkid ptcl unversionedClients =
                   )
         , localStateQueryProtocol =
             Net.InitiatorProtocolOnly $
-              Net.mkMiniProtocolCbFromPeer $
+              Net.mkMiniProtocolCbFromPeerSt $
                 const
                   ( nullTracer
                   , cStateQueryCodec
+                  , Net.Query.StateIdle
                   , maybe
                       Net.localStateQueryPeerNull
                       Net.Query.localStateQueryClientPeer
diff --git a/cardano-api/internal/Cardano/Api/LedgerState.hs b/cardano-api/internal/Cardano/Api/LedgerState.hs
index a960aaaf72..468242a2c7 100644
--- a/cardano-api/internal/Cardano/Api/LedgerState.hs
+++ b/cardano-api/internal/Cardano/Api/LedgerState.hs
@@ -220,7 +220,7 @@ import qualified Data.Yaml as Yaml
 import           Formatting.Buildable (build)
 import           GHC.Exts (IsList (..))
 import           Lens.Micro
-import           Network.TypedProtocol.Pipelined (Nat (..))
+import           Network.TypedProtocol.Core (Nat (..))
 import           System.FilePath
 
 data InitialLedgerStateError
@@ -1097,45 +1097,45 @@ instance FromJSON NodeConfig where
         <*> parseBabbageHardForkEpoch o
         <*> parseConwayHardForkEpoch o
 
-    parseShelleyHardForkEpoch :: Object -> Parser Consensus.TriggerHardFork
+    parseShelleyHardForkEpoch :: Object -> Parser (Consensus.CardanoHardForkTrigger blk)
     parseShelleyHardForkEpoch o =
       asum
-        [ Consensus.TriggerHardForkAtEpoch <$> o .: "TestShelleyHardForkAtEpoch"
-        , pure $ Consensus.TriggerHardForkAtVersion 2 -- Mainnet default
+        [ Consensus.CardanoTriggerHardForkAtEpoch <$> o .: "TestShelleyHardForkAtEpoch"
+        , pure Consensus.CardanoTriggerHardForkAtDefaultVersion
         ]
 
-    parseAllegraHardForkEpoch :: Object -> Parser Consensus.TriggerHardFork
+    parseAllegraHardForkEpoch :: Object -> Parser (Consensus.CardanoHardForkTrigger blk)
     parseAllegraHardForkEpoch o =
       asum
-        [ Consensus.TriggerHardForkAtEpoch <$> o .: "TestAllegraHardForkAtEpoch"
-        , pure $ Consensus.TriggerHardForkAtVersion 3 -- Mainnet default
+        [ Consensus.CardanoTriggerHardForkAtEpoch <$> o .: "TestAllegraHardForkAtEpoch"
+        , pure Consensus.CardanoTriggerHardForkAtDefaultVersion
         ]
 
-    parseMaryHardForkEpoch :: Object -> Parser Consensus.TriggerHardFork
+    parseMaryHardForkEpoch :: Object -> Parser (Consensus.CardanoHardForkTrigger blk)
     parseMaryHardForkEpoch o =
       asum
-        [ Consensus.TriggerHardForkAtEpoch <$> o .: "TestMaryHardForkAtEpoch"
-        , pure $ Consensus.TriggerHardForkAtVersion 4 -- Mainnet default
+        [ Consensus.CardanoTriggerHardForkAtEpoch <$> o .: "TestMaryHardForkAtEpoch"
+        , pure Consensus.CardanoTriggerHardForkAtDefaultVersion
         ]
 
-    parseAlonzoHardForkEpoch :: Object -> Parser Consensus.TriggerHardFork
+    parseAlonzoHardForkEpoch :: Object -> Parser (Consensus.CardanoHardForkTrigger blk)
     parseAlonzoHardForkEpoch o =
       asum
-        [ Consensus.TriggerHardForkAtEpoch <$> o .: "TestAlonzoHardForkAtEpoch"
-        , pure $ Consensus.TriggerHardForkAtVersion 5 -- Mainnet default
+        [ Consensus.CardanoTriggerHardForkAtEpoch <$> o .: "TestAlonzoHardForkAtEpoch"
+        , pure Consensus.CardanoTriggerHardForkAtDefaultVersion
         ]
-    parseBabbageHardForkEpoch :: Object -> Parser Consensus.TriggerHardFork
+    parseBabbageHardForkEpoch :: Object -> Parser (Consensus.CardanoHardForkTrigger blk)
     parseBabbageHardForkEpoch o =
       asum
-        [ Consensus.TriggerHardForkAtEpoch <$> o .: "TestBabbageHardForkAtEpoch"
-        , pure $ Consensus.TriggerHardForkAtVersion 7 -- Mainnet default
+        [ Consensus.CardanoTriggerHardForkAtEpoch <$> o .: "TestBabbageHardForkAtEpoch"
+        , pure Consensus.CardanoTriggerHardForkAtDefaultVersion
         ]
 
-    parseConwayHardForkEpoch :: Object -> Parser Consensus.TriggerHardFork
+    parseConwayHardForkEpoch :: Object -> Parser (Consensus.CardanoHardForkTrigger blk)
     parseConwayHardForkEpoch o =
       asum
-        [ Consensus.TriggerHardForkAtEpoch <$> o .: "TestConwayHardForkAtEpoch"
-        , pure $ Consensus.TriggerHardForkAtVersion 9 -- Mainnet default
+        [ Consensus.CardanoTriggerHardForkAtEpoch <$> o .: "TestConwayHardForkAtEpoch"
+        , pure Consensus.CardanoTriggerHardForkAtDefaultVersion
         ]
 
 ----------------------------------------------------------------------
diff --git a/cardano-api/src/Cardano/Api/ChainSync/ClientPipelined.hs b/cardano-api/src/Cardano/Api/ChainSync/ClientPipelined.hs
index 0ff1ba8e89..e794708a29 100644
--- a/cardano-api/src/Cardano/Api/ChainSync/ClientPipelined.hs
+++ b/cardano-api/src/Cardano/Api/ChainSync/ClientPipelined.hs
@@ -34,4 +34,4 @@ where
 import           Ouroboros.Network.Protocol.ChainSync.ClientPipelined
 import           Ouroboros.Network.Protocol.ChainSync.PipelineDecision
 
-import           Network.TypedProtocol.Pipelined (N (..), Nat (..), natToInt)
+import           Network.TypedProtocol.Core (N (..), Nat (..), natToInt)
diff --git a/flake.lock b/flake.lock
index 785b5bc9f9..b086cee87d 100644
--- a/flake.lock
+++ b/flake.lock
@@ -3,11 +3,11 @@
     "CHaP": {
       "flake": false,
       "locked": {
-        "lastModified": 1728953092,
-        "narHash": "sha256-DBqT9uexf/yoZjtEP3263ltnhP/o7iBl8IZdJRfPjJs=",
+        "lastModified": 1729560667,
+        "narHash": "sha256-tHDAxN8erb23MIy7zH6VV6mCspKBstj2R1LkeBgZt28=",
         "owner": "intersectmbo",
         "repo": "cardano-haskell-packages",
-        "rev": "fd5e5cf056090977ecbd661ad07f602eb7e2614d",
+        "rev": "7f24768c3a2f42a15fef889d5b415100d8082c16",
         "type": "github"
       },
       "original": {