diff --git a/internal/rpc/solana/client.go b/internal/rpc/solana/client.go
index e919d2c..c5ffde6 100644
--- a/internal/rpc/solana/client.go
+++ b/internal/rpc/solana/client.go
@@ -53,7 +53,7 @@ func (c *Client) GetSlot(ctx context.Context) (uint64, error) {
 func (c *Client) GetTransaction(ctx context.Context, signature string) (*GetTransactionResult, error) {
 	cfg := map[string]any{
 		"encoding":                       "jsonParsed",
-		"maxSupportedTransactionVersion": 0,
+		"maxSupportedTransactionVersion": MaxSupportedTransactionVersion,
 		"commitment":                     "finalized",
 	}
 	resp, err := c.base.CallRPC(ctx, "getTransaction", []any{signature, cfg})
@@ -78,7 +78,7 @@ func (c *Client) GetBlock(ctx context.Context, slot uint64) (*GetBlockResult, er
 		Encoding:                       "jsonParsed",
 		TransactionDetails:             "full",
 		Rewards:                        false,
-		MaxSupportedTransactionVersion: 0,
+		MaxSupportedTransactionVersion: MaxSupportedTransactionVersion,
 		Commitment:                     "finalized",
 	}
 	resp, err := c.base.CallRPC(ctx, "getBlock", []any{slot, cfg})
diff --git a/internal/rpc/solana/types.go b/internal/rpc/solana/types.go
index 8db5c51..979067e 100644
--- a/internal/rpc/solana/types.go
+++ b/internal/rpc/solana/types.go
@@ -23,11 +23,17 @@ type jsonRPCError struct {
 
 type GetSlotResult uint64
 
+// MaxSupportedTransactionVersion is the newest transaction format getBlock and getTransaction may return.
+// Clusters now include version 1 transactions in most blocks; asking for at most 0 makes the RPC reject the
+// whole block ("Transaction version (1) is not supported by the requesting client"). Version 1 parses like
+// version 0 for transfers (it adds a transactionConfig field and drops addressTableLookups).
+const MaxSupportedTransactionVersion = 1
+
 type GetBlockConfig struct {
 	Encoding                       string `json:"encoding"`                       // json | jsonParsed
 	TransactionDetails             string `json:"transactionDetails"`             // full
 	Rewards                        bool   `json:"rewards"`                        // false
-	MaxSupportedTransactionVersion int    `json:"maxSupportedTransactionVersion"` // 0
+	MaxSupportedTransactionVersion int    `json:"maxSupportedTransactionVersion"` // MaxSupportedTransactionVersion
 	Commitment                     string `json:"commitment,omitempty"`           // processed | confirmed | finalized
 }
 
diff --git a/pkg/addressbloomfilter/redis.go b/pkg/addressbloomfilter/redis.go
index f5a1351..57ff821 100644
--- a/pkg/addressbloomfilter/redis.go
+++ b/pkg/addressbloomfilter/redis.go
@@ -214,13 +214,24 @@ func (rbf *redisBloomFilter) ContainsBatch(addresses []string, addressType enum.
 		return results
 	}
 	for i, item := range items {
-		if n, ok := item.(int64); ok {
-			results[i] = n == 1
-		}
+		results[i] = bloomReplyTrue(item)
 	}
 	return results
 }
 
+// bloomReplyTrue reads one BF.MEXISTS reply item. RESP2 answers 1 or 0; RESP3, go-redis v9's default protocol,
+// answers true or false. Reading only integers would report every address as unwatched.
+func bloomReplyTrue(item any) bool {
+	switch v := item.(type) {
+	case int64:
+		return v == 1
+	case bool:
+		return v
+	default:
+		return false
+	}
+}
+
 func (rbf *redisBloomFilter) Clear(addressType enum.NetworkType) {
 	rbf.mu.Lock()
 	defer rbf.mu.Unlock()
diff --git a/pkg/addressbloomfilter/redis_reply_test.go b/pkg/addressbloomfilter/redis_reply_test.go
new file mode 100644
index 0000000..630482e
--- /dev/null
+++ b/pkg/addressbloomfilter/redis_reply_test.go
@@ -0,0 +1,22 @@
+package addressbloomfilter
+
+import "testing"
+
+func TestBloomReplyTrue_AcceptsResp2AndResp3Replies(t *testing.T) {
+	cases := []struct {
+		item any
+		want bool
+	}{
+		{int64(1), true},  // RESP2
+		{int64(0), false}, // RESP2
+		{true, true},      // RESP3
+		{false, false},    // RESP3
+		{"1", false},
+		{nil, false},
+	}
+	for _, c := range cases {
+		if got := bloomReplyTrue(c.item); got != c.want {
+			t.Errorf("bloomReplyTrue(%#v) = %v, want %v", c.item, got, c.want)
+		}
+	}
+}