diff --git a/README.md b/README.md
index b1adda98b..ac1bb2d13 100644
--- a/README.md
+++ b/README.md
@@ -322,7 +322,7 @@ The following SDK library releases are available on [vcpkg](https://github.com/m
 * `azure-storage-files-shares-cpp`
 * `azure-storage-queues-cpp`
 
-> NOTE: In case of getting linker errors when consuming the SDK on Windows, make sure that [vcpkg triplet](https://vcpkg.readthedocs.io/en/latest/users/triplets/) being consumed matches the [CRT link flags](https://docs.microsoft.com/cpp/build/reference/md-mt-ld-use-run-time-library?view=msvc-160) being set for your app or library build. See also `MSVC_USE_STATIC_CRT` build flag.
+> NOTE: In case of getting linker errors when consuming the SDK on Windows, make sure that [vcpkg triplet](https://learn.microsoft.com/vcpkg/users/triplets) being consumed matches the [CRT link flags](https://docs.microsoft.com/cpp/build/reference/md-mt-ld-use-run-time-library?view=msvc-160) being set for your app or library build. See also `MSVC_USE_STATIC_CRT` build flag.
 
 ## OpenSSL Version
 
diff --git a/sdk/core/azure-core/src/http/curl/curl.cpp b/sdk/core/azure-core/src/http/curl/curl.cpp
index e7d1ccd19..6b9e940d9 100644
--- a/sdk/core/azure-core/src/http/curl/curl.cpp
+++ b/sdk/core/azure-core/src/http/curl/curl.cpp
@@ -2288,6 +2288,9 @@ CurlConnection::CurlConnection(
 
   if (!options.SslOptions.PemEncodedExpectedRootCertificates.empty())
   {
+    // curl_blob is defined in Curl version 7.77 or newer. Since we prefer to use the OS version of
+    // Curl some may not be up to date enough (e.g. Ubuntu 18.04 uses Curl 7.58)
+#if LIBCURL_VERSION_MAJOR > 7 || (LIBCURL_VERSION_MAJOR == 7 && LIBCURL_VERSION_MINOR >= 77)
     curl_blob rootCertBlob
         = {const_cast<void*>(reinterpret_cast<const void*>(
                options.SslOptions.PemEncodedExpectedRootCertificates.c_str())),
@@ -2300,6 +2303,12 @@ CurlConnection::CurlConnection(
           + ". Failed to set CA cert to:" + options.CAInfo + ". "
           + std::string(curl_easy_strerror(result)));
     }
+#else
+    throw Azure::Core::Http::TransportException(
+        _detail::DefaultFailedToGetNewConnectionTemplate + hostDisplayName
+        + ". Failed to set CA cert to:" + options.CAInfo + ". "
+        + "Not supported in your version of Curl");
+#endif
   }
 
 #if defined(AZ_PLATFORM_WINDOWS)
diff --git a/sdk/core/azure-core/src/http/websockets/websockets_impl.cpp b/sdk/core/azure-core/src/http/websockets/websockets_impl.cpp
index 7078c2ef8..9044a6e27 100644
--- a/sdk/core/azure-core/src/http/websockets/websockets_impl.cpp
+++ b/sdk/core/azure-core/src/http/websockets/websockets_impl.cpp
@@ -652,7 +652,7 @@ namespace Azure { namespace Core { namespace Http { namespace WebSockets { names
   WebSocketImplementation::DecodeFrame(Azure::Core::Context const& context)
   {
     // Ensure single threaded access to receive this frame.
-    std::unique_lock<std::mutex> lock(m_transportMutex);
+    std::unique_lock<std::mutex> lock(m_transportReadMutex);
     if (IsTransportEof())
     {
       throw std::runtime_error("Frame buffer is too small.");
@@ -726,7 +726,7 @@ namespace Azure { namespace Core { namespace Http { namespace WebSockets { names
       m_bufferPos = 0;
       if (m_bufferLen == 0)
       {
-        m_eof = true;
+        m_eof.store(true, std::memory_order_release);
         return 0;
       }
     }
@@ -774,7 +774,7 @@ namespace Azure { namespace Core { namespace Http { namespace WebSockets { names
       std::vector<uint8_t> const& sendFrame,
       Azure::Core::Context const& context)
   {
-    std::unique_lock<std::mutex> transportLock(m_transportMutex);
+    std::unique_lock<std::mutex> transportLock(m_transportWriteMutex);
     m_receiveStatistics.BytesSent += static_cast<uint32_t>(sendFrame.size());
     m_receiveStatistics.FramesSent += 1;
     m_transport->SendBuffer(sendFrame.data(), sendFrame.size(), context);
diff --git a/sdk/core/azure-core/src/http/websockets/websockets_impl.hpp b/sdk/core/azure-core/src/http/websockets/websockets_impl.hpp
index d62d82b56..62127d9ef 100644
--- a/sdk/core/azure-core/src/http/websockets/websockets_impl.hpp
+++ b/sdk/core/azure-core/src/http/websockets/websockets_impl.hpp
@@ -5,6 +5,8 @@
 #include "azure/core/internal/diagnostics/log.hpp"
 #include "azure/core/internal/http/pipeline.hpp"
 #include <array>
+#include <atomic>
+#include <condition_variable>
 #include <queue>
 #include <random>
 #include <shared_mutex>
@@ -335,7 +337,7 @@ namespace Azure { namespace Core { namespace Http { namespace WebSockets { names
     uint16_t ReadTransportShort(Azure::Core::Context const& context);
     uint64_t ReadTransportInt64(Azure::Core::Context const& context);
     std::vector<uint8_t> ReadTransportBytes(size_t readLength, Azure::Core::Context const& context);
-    bool IsTransportEof() const { return m_eof; }
+    bool IsTransportEof() const { return m_eof.load(std::memory_order_acquire); }
     void SendPong(std::vector<uint8_t> const& pongData, Azure::Core::Context const& context);
     void SendTransportBuffer(
         std::vector<uint8_t> const& payload,
@@ -358,17 +360,17 @@ namespace Azure { namespace Core { namespace Http { namespace WebSockets { names
     PingThread m_pingThread;
     SocketMessageType m_currentMessageType{SocketMessageType::Unknown};
     std::mutex m_stateMutex;
+    std::mutex m_transportReadMutex;
+    std::mutex m_transportWriteMutex;
     std::thread::id m_stateOwner;
 
     ReceiveStatistics m_receiveStatistics{};
 
-    std::mutex m_transportMutex;
-
     std::unique_ptr<Azure::Core::IO::BodyStream> m_initialBodyStream;
     constexpr static size_t m_bufferSize = 1024;
     uint8_t m_buffer[m_bufferSize]{};
     size_t m_bufferPos = 0;
     size_t m_bufferLen = 0;
-    bool m_eof = false;
+    std::atomic<bool> m_eof{false};
   };
 }}}}} // namespace Azure::Core::Http::WebSockets::_detail