cdc: deprecate the enable-old-value to the previous v7.4 release-note (…

…#18538) (#18541)

releases/release-7.4.0.md

@@ -321,10 +321,11 @@ Quick access: [Quick start](https://docs.pingcap.com/tidb/v7.4/quick-start-with-
 | TiCDC | [`large-message-handle-compression`](/ticdc/ticdc-sink-to-kafka.md#ticdc-data-compression) | Newly added | Controls whether to enable compression during encoding. The default value is empty, which means not enabled. |
 | TiCDC | [`large-message-handle-option`](/ticdc/ticdc-sink-to-kafka.md#send-large-messages-to-external-storage) | Modified | This configuration item adds a new value `claim-check`. When it is set to `claim-check`, TiCDC Kafka sink supports sending the message to external storage when the message size exceeds the limit and sends a message to Kafka containing the address of this large message in external storage. |
 
-## Deprecated features
+## Deprecated and removed features
 
 + [Mydumper](https://docs.pingcap.com/tidb/v4.0/mydumper-overview) will be deprecated in v7.5.0 and most of its features have been replaced by [Dumpling](/dumpling-overview.md). It is strongly recommended that you use Dumpling instead of mydumper.
 + TiKV-importer will be deprecated in v7.5.0. It is strongly recommended that you use the [Physical Import Mode of TiDB Lightning](/tidb-lightning/tidb-lightning-physical-import-mode.md) as an alternative.
++ The `enable-old-value` parameter of TiCDC is removed. [#9667](https://github.com/pingcap/tiflow/issues/9667) @[3AceShowHand](https://github.com/3AceShowHand)
 
 ## Improvements