diff --git a/.github/workflows/object_store.yml b/.github/workflows/object_store.yml
index 1857b330326..5ea44603bb9 100644
--- a/.github/workflows/object_store.yml
+++ b/.github/workflows/object_store.yml
@@ -164,7 +164,7 @@ jobs:
       - name: Run object_store tests (AWS native conditional put)
         run: cargo test --features=aws
         env:
-          AWS_CONDITIONAL_PUT: etag-put-if-not-exists
+          AWS_CONDITIONAL_PUT: etag
           AWS_COPY_IF_NOT_EXISTS: multipart
 
       - name: GCS Output
diff --git a/object_store/src/aws/mod.rs b/object_store/src/aws/mod.rs
index 832173da9e8..ed1677070c9 100644
--- a/object_store/src/aws/mod.rs
+++ b/object_store/src/aws/mod.rs
@@ -172,7 +172,7 @@ impl ObjectStore for AmazonS3 {
             (PutMode::Create | PutMode::Update(_), None) => Err(Error::NotImplemented),
             (
                 PutMode::Create,
-                Some(S3ConditionalPut::ETagMatch | S3ConditionalPut::ETagPutIfNotExists),
+                Some(S3ConditionalPut::ETagMatch),
             ) => {
                 match request.header(&IF_NONE_MATCH, "*").do_put().await {
                     // Technically If-None-Match should return NotModified but some stores,
@@ -197,7 +197,6 @@ impl ObjectStore for AmazonS3 {
                     source: "ETag required for conditional put".to_string().into(),
                 })?;
                 match put {
-                    S3ConditionalPut::ETagPutIfNotExists => Err(Error::NotImplemented),
                     S3ConditionalPut::ETagMatch => {
                         match request
                             .header(&IF_MATCH, etag.as_str())
@@ -505,6 +504,7 @@ mod tests {
         let integration = config.build().unwrap();
         let config = &integration.client.config;
         let test_not_exists = config.copy_if_not_exists.is_some();
+        let test_conditional_put = config.conditional_put.is_some();
 
         put_get_delete_list(&integration).await;
         get_opts(&integration).await;
@@ -535,9 +535,8 @@ mod tests {
         if test_not_exists {
             copy_if_not_exists(&integration).await;
         }
-        if let Some(conditional_put) = &config.conditional_put {
-            let supports_update = !matches!(conditional_put, S3ConditionalPut::ETagPutIfNotExists);
-            put_opts(&integration, supports_update).await;
+        if test_conditional_put {
+            put_opts(&integration, true).await;
         }
 
         // run integration test with unsigned payload enabled
diff --git a/object_store/src/aws/precondition.rs b/object_store/src/aws/precondition.rs
index e5058052790..b261ad0dbfb 100644
--- a/object_store/src/aws/precondition.rs
+++ b/object_store/src/aws/precondition.rs
@@ -138,17 +138,6 @@ pub enum S3ConditionalPut {
     /// [HTTP precondition]: https://datatracker.ietf.org/doc/html/rfc9110#name-preconditions
     ETagMatch,
 
-    /// Like `ETagMatch`, but with support for `PutMode::Create` and not
-    /// `PutMode::Option`.
-    ///
-    /// This is the limited form of conditional put supported by Amazon S3
-    /// as of August 2024 ([announcement]).
-    ///
-    /// Encoded as `etag-put-if-not-exists` ignoring whitespace.
-    ///
-    /// [announcement]: https://aws.amazon.com/about-aws/whats-new/2024/08/amazon-s3-conditional-writes/
-    ETagPutIfNotExists,
-
     /// The name of a DynamoDB table to use for coordination
     ///
     /// Encoded as either `dynamo:<TABLE_NAME>` or `dynamo:<TABLE_NAME>:<TIMEOUT_MILLIS>`
@@ -164,7 +153,6 @@ impl std::fmt::Display for S3ConditionalPut {
     fn fmt(&self, f: &mut std::fmt::Formatter<'_>) -> std::fmt::Result {
         match self {
             Self::ETagMatch => write!(f, "etag"),
-            Self::ETagPutIfNotExists => write!(f, "etag-put-if-not-exists"),
             Self::Dynamo(lock) => write!(f, "dynamo: {}", lock.table_name()),
         }
     }
@@ -174,7 +162,6 @@ impl S3ConditionalPut {
     fn from_str(s: &str) -> Option<Self> {
         match s.trim() {
             "etag" => Some(Self::ETagMatch),
-            "etag-put-if-not-exists" => Some(Self::ETagPutIfNotExists),
             trimmed => match trimmed.split_once(':')? {
                 ("dynamo", s) => Some(Self::Dynamo(DynamoCommit::from_str(s)?)),
                 _ => None,