diff --git a/src/validation.cpp b/src/validation.cpp
--- a/src/validation.cpp
+++ b/src/validation.cpp
@@ -2128,9 +2128,6 @@
  * block to the chain tip.
  */
 static void UpdateTip(const Config &config, CBlockIndex *pindexNew) {
-    const Consensus::Params &consensusParams =
-        config.GetChainParams().GetConsensus();
-
     chainActive.SetTip(pindexNew);
 
     // New best block
@@ -2142,42 +2139,8 @@
         g_best_block_cv.notify_all();
     }
 
-    static bool fWarned = false;
-    std::vector<std::string> warningMessages;
-    if (!IsInitialBlockDownload()) {
-        int nUpgraded = 0;
-        const CBlockIndex *pindex = chainActive.Tip();
-
-        // Check the version of the last 100 blocks to see if we need to
-        // upgrade:
-        for (int i = 0; i < 100 && pindex != nullptr; i++) {
-            int32_t nExpectedVersion =
-                ComputeBlockVersion(pindex->pprev, consensusParams);
-            if (pindex->nVersion > VERSIONBITS_LAST_OLD_BLOCK_VERSION &&
-                (pindex->nVersion & ~nExpectedVersion) != 0) {
-                ++nUpgraded;
-            }
-            pindex = pindex->pprev;
-        }
-        if (nUpgraded > 0) {
-            warningMessages.push_back(strprintf(
-                "%d of last 100 blocks have unexpected version", nUpgraded));
-        }
-        if (nUpgraded > 100 / 2) {
-            std::string strWarning =
-                _("Warning: Unknown block versions being mined! It's possible "
-                  "unknown rules are in effect");
-            // notify GetWarnings(), called by Qt and the JSON-RPC code to warn
-            // the user:
-            SetMiscWarning(strWarning);
-            if (!fWarned) {
-                AlertNotify(strWarning);
-                fWarned = true;
-            }
-        }
-    }
     LogPrintf("%s: new best=%s height=%d version=0x%08x log2_work=%.8g tx=%lu "
-              "date='%s' progress=%f cache=%.1fMiB(%utxo)",
+              "date='%s' progress=%f cache=%.1fMiB(%utxo)\n",
               __func__, chainActive.Tip()->GetBlockHash().ToString(),
               chainActive.Height(), chainActive.Tip()->nVersion,
               log(chainActive.Tip()->nChainWork.getdouble()) / log(2.0),
@@ -2187,11 +2150,6 @@
                                         chainActive.Tip()),
               pcoinsTip->DynamicMemoryUsage() * (1.0 / (1 << 20)),
               pcoinsTip->GetCacheSize());
-    if (!warningMessages.empty()) {
-        LogPrintf(" warning='%s'",
-                  boost::algorithm::join(warningMessages, ", "));
-    }
-    LogPrintf("\n");
 }
 
 /**