.. _version_history_1.18.3: 1.18.3 (May 11, 2021) ====================== Bug fixes --------- *Changes expected to improve the state of the world and are unlikely to have negative effects* * **zipkin**: fix timestamp serializaiton in annotations. A prior bug fix exposed an issue with timestamps being serialized as strings. Removed config or runtime ------------------------- *Normally occurs at the end of the* :ref:`deprecation period ` * **tls**: removed ``envoy.reloadable_features.tls_use_io_handle_bio`` runtime guard and legacy code path. New features ------------ * **http**: added the ability to :ref:`unescape slash sequences ` in the path. Requests with unescaped slashes can be proxied, rejected or redirected to the new unescaped path. By default this feature is disabled. The default behavior can be overridden through :ref:`http_connection_manager.path_with_escaped_slashes_action ` runtime variable. This action can be selectively enabled for a portion of requests by setting the :ref:`http_connection_manager.path_with_escaped_slashes_action_sampling ` runtime variable.