feat: expose transaction message version on Pump creation events

README.md

@@ -301,6 +301,8 @@ instruction args, while log-only `CreatePoolEvent` payloads keep the default
 account value is also available from
 `PumpSwapPoolAccountEvent.pool.is_cashback_coin`.
 
+`PumpFunCreateTokenEvent.transaction_version` reports the transaction message version as `Some(YellowstoneMessageVersion::Legacy)`, `V0` or `V1` on gRPC/RPC. JSON uses `"legacy"`, `"v0"` and `"v1"`. It remains `None` without transaction context (including standalone Shred parsing). This is independent of the Pump instruction name in `ix_name`.
+
 <a id="trade-provenance-and-parsing-boundaries"></a>
 
 ## Trade provenance and parsing boundaries

README_CN.md

@@ -281,6 +281,8 @@ log-only 的 `CreatePoolEvent` payload 因为 IDL 不包含该字段，会保持
 `false`。账户里的权威值也可通过
 `PumpSwapPoolAccountEvent.pool.is_cashback_coin` 读取。
 
+`PumpFunCreateTokenEvent.transaction_version` 在 gRPC/RPC 路径下表示交易消息版本：`Some(YellowstoneMessageVersion::Legacy)`、`V0` 或 `V1`，JSON 分别为 `"legacy"`、`"v0"`、`"v1"`。缺少交易上下文时（包括独立 Shred 解析）为 `None`。该字段与 `ix_name` 表示的 Pump 指令版本相互独立。
+
 <a id="交易来源与解析边界"></a>
 
 ## 交易来源与解析边界

examples/pumpfun_trade_filter.rs

@@ -92,6 +92,7 @@ fn print_trade(e: &PumpFunTradeEvent, now_us: i64) {
 }
 
 fn print_create_legacy(e: &PumpFunCreateTokenEvent, now_us: i64) {
+    println!("Transaction version: {:?}", e.transaction_version);
     let latency_us = now_us - e.metadata.recv_us;
     println!(
         "│ CREATE | sig={:.8}.. | name={} symbol={} | mint={:.8}.. | latency={} μs",

src/streaming/event_parser/protocols/pumpfun/events.rs

@@ -7,6 +7,10 @@ use crate::streaming::event_parser::protocols::pumpfun::types::{BondingCurve, Gl
 
 #[derive(Clone, Debug, Default, PartialEq, Eq, Serialize, Deserialize, BorshDeserialize)]
 pub struct PumpFunCreateTokenEvent {
+    /// Transaction message version from gRPC/RPC context, independent of create/create_v2.
+    #[borsh(skip)]
+    #[serde(default)]
+    pub transaction_version: Option<sol_parser_sdk::grpc::YellowstoneMessageVersion>,
     #[borsh(skip)]
     #[serde(default)]
     pub depth: u8,

src/streaming/parser_sdk_bridge/mod.rs

@@ -339,6 +339,7 @@ mod tests {
         let quote_vault = Pubkey::new_unique();
         let quote_token_program = Pubkey::new_unique();
         let c = PbPumpCreateV2 {
+            transaction_version: Some(sol_parser_sdk::YellowstoneMessageVersion::V1),
             metadata: EventMetadata {
                 signature: Signature::default(),
                 slot: 42,
@@ -365,6 +366,10 @@ mod tests {
         let ev = convert_parser_event(PbDexEvent::PumpFunCreateV2(c), None, 999).expect("convert");
         match ev {
             DexEvent::PumpFunCreateTokenEvent(st) => {
+                assert_eq!(
+                    st.transaction_version,
+                    Some(sol_parser_sdk::YellowstoneMessageVersion::V1)
+                );
                 assert_eq!(st.metadata.event_type, EventType::PumpFunCreateToken);
                 assert_eq!(st.mint, mint);
                 assert_eq!(st.global, global);

src/streaming/parser_sdk_bridge/pump_pumpswap.rs

@@ -36,6 +36,7 @@ pub(crate) fn pumpfun_create_token_from_parser(
     meta: EventMetadata,
 ) -> PumpFunCreateTokenEvent {
     PumpFunCreateTokenEvent {
+        transaction_version: c.transaction_version,
         metadata: meta,
         name: c.name,
         symbol: c.symbol,
@@ -82,6 +83,7 @@ pub(crate) fn pumpfun_create_token_from_parser_v2(
     meta: EventMetadata,
 ) -> PumpFunCreateTokenEvent {
     PumpFunCreateTokenEvent {
+        transaction_version: c.transaction_version,
         metadata: meta,
         name: c.name,
         symbol: c.symbol,