diff --git a/src/chainparams.cpp b/src/chainparams.cpp
index 7cb4c0a2b9e5..7e4e42e610bc 100644
--- a/src/chainparams.cpp
+++ b/src/chainparams.cpp
@@ -274,7 +274,6 @@ class CMainParams : public CChainParams {
 
         vSporkAddresses = {"Xgtyuk76vhuFW2iT7UAiHgNdWXCf3J34wh"};
         nMinSporkKeys = 1;
-        fBIP9CheckMasternodesUpgraded = true;
 
         checkpointData = {
             {
@@ -464,7 +463,6 @@ class CTestNetParams : public CChainParams {
 
         vSporkAddresses = {"yjPtiKh2uwk3bDutTEA2q9mCtXyiZRWn55"};
         nMinSporkKeys = 1;
-        fBIP9CheckMasternodesUpgraded = true;
 
         checkpointData = {
             {
@@ -644,8 +642,6 @@ class CDevNetParams : public CChainParams {
 
         vSporkAddresses = {"yjPtiKh2uwk3bDutTEA2q9mCtXyiZRWn55"};
         nMinSporkKeys = 1;
-        // devnets are started with no blocks and no MN, so we can't check for upgraded MN (as there are none)
-        fBIP9CheckMasternodesUpgraded = false;
 
         checkpointData = (CCheckpointData) {
             {
@@ -846,8 +842,6 @@ class CRegTestParams : public CChainParams {
         // privKey: cP4EKFyJsHT39LDqgdcB43Y3YXjNyjb5Fuas1GQSeAtjnZWmZEQK
         vSporkAddresses = {"yj949n1UH6fDhw6HtVE5VMj2iSTaSWBMcW"};
         nMinSporkKeys = 1;
-        // regtest usually has no masternodes in most tests, so don't check for upgraged MNs
-        fBIP9CheckMasternodesUpgraded = false;
 
         checkpointData = {
             {
diff --git a/src/chainparams.h b/src/chainparams.h
index b52ba292d1e6..ad25af62ed7c 100644
--- a/src/chainparams.h
+++ b/src/chainparams.h
@@ -129,17 +129,12 @@ class CChainParams
     void UpdateDIP3Parameters(int nActivationHeight, int nEnforcementHeight);
     void UpdateDIP8Parameters(int nActivationHeight);
     void UpdateBudgetParameters(int nMasternodePaymentsStartBlock, int nBudgetPaymentsStartBlock, int nSuperblockStartBlock);
-    void UpdateSubsidyAndDiffParams(int nMinimumDifficultyBlocks, int nHighSubsidyBlocks, int nHighSubsidyFactor);
-    void UpdateLLMQChainLocks(Consensus::LLMQType llmqType);
     void UpdateLLMQInstantSend(Consensus::LLMQType llmqType);
-    void UpdateLLMQTestParams(int size, int threshold);
-    void UpdateLLMQDevnetParams(int size, int threshold);
     int PoolMinParticipants() const { return nPoolMinParticipants; }
     int PoolMaxParticipants() const { return nPoolMaxParticipants; }
     int FulfilledRequestExpireTime() const { return nFulfilledRequestExpireTime; }
     const std::vector<std::string>& SporkAddresses() const { return vSporkAddresses; }
     int MinSporkKeys() const { return nMinSporkKeys; }
-    bool BIP9CheckMasternodesUpgraded() const { return fBIP9CheckMasternodesUpgraded; }
     std::optional<Consensus::LLMQParams> GetLLMQ(Consensus::LLMQType llmqType) const;
 
 protected:
@@ -174,7 +169,6 @@ class CChainParams
     int nFulfilledRequestExpireTime;
     std::vector<std::string> vSporkAddresses;
     int nMinSporkKeys;
-    bool fBIP9CheckMasternodesUpgraded;
     uint16_t nDefaultPlatformP2PPort;
     uint16_t nDefaultPlatformHTTPPort;
 
diff --git a/src/miner.cpp b/src/miner.cpp
index 93feeedd6688..6c1e703d4686 100644
--- a/src/miner.cpp
+++ b/src/miner.cpp
@@ -134,7 +134,7 @@ std::unique_ptr<CBlockTemplate> BlockAssembler::CreateNewBlock(const CScript& sc
     bool fDIP0003Active_context = nHeight >= chainparams.GetConsensus().DIP0003Height;
     bool fDIP0008Active_context = nHeight >= chainparams.GetConsensus().DIP0008Height;
 
-    pblock->nVersion = ComputeBlockVersion(pindexPrev, chainparams.GetConsensus(), chainparams.BIP9CheckMasternodesUpgraded());
+    pblock->nVersion = ComputeBlockVersion(pindexPrev, chainparams.GetConsensus());
     // Non-mainnet only: allow overriding block.nVersion with
     // -blockversion=N to test forking scenarios
     if (Params().NetworkIDString() != CBaseChainParams::MAIN)
diff --git a/src/validation.cpp b/src/validation.cpp
index 8c84fd033aa1..ae09129669de 100644
--- a/src/validation.cpp
+++ b/src/validation.cpp
@@ -45,7 +45,6 @@
 #include <util/translation.h>
 #include <util/system.h>
 #include <validationinterface.h>
-#include <versionbitsinfo.h>
 #include <warnings.h>
 
 #include <masternode/payments.h>
@@ -1960,7 +1959,7 @@ void StopScriptCheckWorkerThreads()
 
 VersionBitsCache versionbitscache GUARDED_BY(cs_main);
 
-int32_t ComputeBlockVersion(const CBlockIndex* pindexPrev, const Consensus::Params& params, bool fCheckMasternodesUpgraded)
+int32_t ComputeBlockVersion(const CBlockIndex* pindexPrev, const Consensus::Params& params)
 {
     LOCK(cs_main);
     int32_t nVersion = VERSIONBITS_TOP_BITS;
@@ -1968,10 +1967,6 @@ int32_t ComputeBlockVersion(const CBlockIndex* pindexPrev, const Consensus::Para
     for (int i = 0; i < (int)Consensus::MAX_VERSION_BITS_DEPLOYMENTS; i++) {
         Consensus::DeploymentPos pos = Consensus::DeploymentPos(i);
         ThresholdState state = VersionBitsState(pindexPrev, params, pos, versionbitscache);
-        const struct VBDeploymentInfo& vbinfo = VersionBitsDeploymentInfo[pos];
-        if (vbinfo.check_mn_protocol && state == ThresholdState::STARTED && fCheckMasternodesUpgraded) {
-            // TODO implement new logic for MN upgrade checks (e.g. with LLMQ based feature/version voting)
-        }
         if (state == ThresholdState::LOCKED_IN || state == ThresholdState::STARTED) {
             nVersion |= VersionBitsMask(params, static_cast<Consensus::DeploymentPos>(i));
         }
diff --git a/src/validation.h b/src/validation.h
index 2406334850c9..b26717c16548 100644
--- a/src/validation.h
+++ b/src/validation.h
@@ -1069,7 +1069,7 @@ extern VersionBitsCache versionbitscache;
 /**
  * Determine what nVersion a new block should use.
  */
-int32_t ComputeBlockVersion(const CBlockIndex* pindexPrev, const Consensus::Params& params, bool fCheckMasternodesUpgraded = false);
+int32_t ComputeBlockVersion(const CBlockIndex* pindexPrev, const Consensus::Params& params);
 
 /**
  * Return true if hash can be found in ::ChainActive() at nBlockHeight height.
diff --git a/src/versionbitsinfo.cpp b/src/versionbitsinfo.cpp
index b0ccf019f729..731fa31caa70 100644
--- a/src/versionbitsinfo.cpp
+++ b/src/versionbitsinfo.cpp
@@ -10,16 +10,13 @@ const struct VBDeploymentInfo VersionBitsDeploymentInfo[Consensus::MAX_VERSION_B
     {
         /*.name =*/ "testdummy",
         /*.gbt_force =*/ true,
-        /*.check_mn_protocol =*/ false,
     },
     {
         /*.name =*/"v19",
         /*.gbt_force =*/true,
-        /*.check_mn_protocol =*/false,
     },
     {
         /*.name =*/"v20",
         /*.gbt_force =*/true,
-        /*.check_mn_protocol =*/false,
     },
 };
diff --git a/src/versionbitsinfo.h b/src/versionbitsinfo.h
index edf81a31f040..a7822bc747a9 100644
--- a/src/versionbitsinfo.h
+++ b/src/versionbitsinfo.h
@@ -10,8 +10,6 @@ struct VBDeploymentInfo {
     const char *name;
     /** Whether GBT clients can safely ignore this rule in simplified usage */
     bool gbt_force;
-    /** Whether to check current MN protocol or not */
-    bool check_mn_protocol;
 };
 
 extern const struct VBDeploymentInfo VersionBitsDeploymentInfo[];