diff --git a/include/quill/Backend.h b/include/quill/Backend.h
index e4e8c7ab..4812e6f8 100644
--- a/include/quill/Backend.h
+++ b/include/quill/Backend.h
@@ -113,21 +113,6 @@ class Backend
                    });
   }
 
-  /***/
-  template <typename TFrontendOptions>
-  [[deprecated(
-    "This function is deprecated and will be removed in the next version. Use "
-    "start(BackendOptions, SignalHandlerOptions) instead ")]] QUILL_ATTRIBUTE_COLD static void
-  start_with_signal_handler(BackendOptions const& options = BackendOptions{},
-                            QUILL_MAYBE_UNUSED std::initializer_list<int> const& catchable_signals =
-                              std::initializer_list<int>{SIGTERM, SIGINT, SIGABRT, SIGFPE, SIGILL, SIGSEGV},
-                            uint32_t signal_handler_timeout_seconds = 20u,
-                            std::string const& signal_handler_logger = {})
-  {
-    SignalHandlerOptions sho{catchable_signals, signal_handler_timeout_seconds, signal_handler_logger};
-    start<TFrontendOptions>(options, sho);
-  }
-
   /**
    * Stops the backend thread.
    * @note thread-safe
diff --git a/include/quill/sinks/FileSink.h b/include/quill/sinks/FileSink.h
index 28d69921..1d358621 100644
--- a/include/quill/sinks/FileSink.h
+++ b/include/quill/sinks/FileSink.h
@@ -124,15 +124,7 @@ class FileSinkConfig
    * @param value True to perform fsync, false otherwise.
    */
   QUILL_ATTRIBUTE_COLD void set_fsync_enabled(bool value) { _fsync_enabled = value; }
-
-  [[deprecated(
-    "This function is deprecated and will be removed in the next version. Use set_fsync_enabled() "
-    "instead.")]]
-  QUILL_ATTRIBUTE_COLD void set_do_fsync(bool value)
-  {
-    _fsync_enabled = value;
-  }
-
+  
   /**
    * @brief Sets the open mode for the file.
    * Valid options for the open mode are 'a' or 'w'. The default value is 'a'.