diff --git a/Sources/FoundationNetworking/URLSession/libcurl/MultiHandle.swift b/Sources/FoundationNetworking/URLSession/libcurl/MultiHandle.swift
index 86c2704cc8..f1b3ad6a21 100644
--- a/Sources/FoundationNetworking/URLSession/libcurl/MultiHandle.swift
+++ b/Sources/FoundationNetworking/URLSession/libcurl/MultiHandle.swift
@@ -48,16 +48,6 @@ extension URLSession {
         fileprivate var timeoutSource: _TimeoutSource? = nil
         private var reentrantInUpdateTimeoutTimer = false
         
-        // Only use serialization for OpenSSL < 1.1.0 which has race conditions during cleanup
-        private static let _needsCleanupSerialization: Bool = {
-            let version = CFURLSessionSSLVersionInfo();
-            let versionNotThreadSafe = version.major < 1 || (version.major == 1 && version.minor < 1)
-            return version.isOpenSSL && versionNotThreadSafe
-        }()
-
-        // Process-wide cleanup lock
-        private static let _cleanupLock = NSLock()
-
         init(configuration: URLSession._Configuration, workQueue: DispatchQueue) {
             queue = DispatchQueue(label: "MultiHandle.isolation", target: workQueue)
             setupCallbacks()
@@ -68,14 +58,7 @@ extension URLSession {
             easyHandles.forEach {
                 try! CFURLSessionMultiHandleRemoveHandle(rawHandle, $0.rawHandle).asError()
             }
-
-            if Self._needsCleanupSerialization {
-                Self._cleanupLock.lock()
-                try! CFURLSessionMultiHandleDeinit(rawHandle).asError()
-                Self._cleanupLock.unlock()
-            } else {
-                try! CFURLSessionMultiHandleDeinit(rawHandle).asError()
-            }
+            try! CFURLSessionMultiHandleDeinit(rawHandle).asError()
         }
     }
 }
diff --git a/Sources/_CFURLSessionInterface/CFURLSessionInterface.c b/Sources/_CFURLSessionInterface/CFURLSessionInterface.c
index 10c78dcfaa..327397fe78 100644
--- a/Sources/_CFURLSessionInterface/CFURLSessionInterface.c
+++ b/Sources/_CFURLSessionInterface/CFURLSessionInterface.c
@@ -676,22 +676,6 @@ CFURLSessionCurlVersion CFURLSessionCurlVersionInfo(void) {
     return v;
 }
 
-CFURLSessionSSLVersion CFURLSessionSSLVersionInfo(void) {
-    CFURLSessionSSLVersion version = {.major = 0, .minor = 0, .patch = 0, .isOpenSSL = false};
-    curl_version_info_data *info = curl_version_info(CURLVERSION_NOW);
-    if (info && info->ssl_version) {
-        // Parse OpenSSL version string like "OpenSSL/1.0.2k-fips" or "OpenSSL/1.1.1"
-        const char *ssl_str = info->ssl_version;
-        if (strncmp(ssl_str, "OpenSSL/", 8) == 0) {
-            version.isOpenSSL = true;
-            ssl_str += 8;  // Skip "OpenSSL/"
-            sscanf(ssl_str, "%d.%d.%d", &version.major, &version.minor, &version.patch);
-        }
-    }
-
-    return version;
-}
-
 
 int const CFURLSessionWriteFuncPause = CURL_WRITEFUNC_PAUSE;
 int const CFURLSessionReadFuncPause = CURL_READFUNC_PAUSE;
diff --git a/Sources/_CFURLSessionInterface/include/CFURLSessionInterface.h b/Sources/_CFURLSessionInterface/include/CFURLSessionInterface.h
index dff3a5e7b3..c6ca3766be 100644
--- a/Sources/_CFURLSessionInterface/include/CFURLSessionInterface.h
+++ b/Sources/_CFURLSessionInterface/include/CFURLSessionInterface.h
@@ -580,15 +580,6 @@ typedef struct CFURLSessionCurlVersion {
 } CFURLSessionCurlVersion;
 CF_EXPORT CFURLSessionCurlVersion CFURLSessionCurlVersionInfo(void);
 
-typedef struct CFURLSessionSSLVersion {
-    int major;
-    int minor;
-    int patch;
-    bool isOpenSSL;
-} CFURLSessionSSLVersion;
-
-CF_EXPORT CFURLSessionSSLVersion CFURLSessionSSLVersionInfo(void);
-
 
 CF_EXPORT int const CFURLSessionWriteFuncPause;
 CF_EXPORT int const CFURLSessionReadFuncPause;