1.21.1 (February 22, 2022) ========================== Incompatible Behavior Changes ----------------------------- *Changes that are expected to cause an incompatibility if applicable; deployment changes are likely required* Minor Behavior Changes ---------------------- *Changes that may cause incompatibilities for some users, but should not for most* Bug Fixes --------- *Changes expected to improve the state of the world and are unlikely to have negative effects* * data plane: fix crash when internal redirect selects a route configured with direct response or redirect actions. * jwt_authn: fixed the crash when a CONNECT request is sent to JWT filter configured with regex match on the Host header. * tcp_proxy: fix a crash that occurs when configured for :ref:`upstream tunneling <envoy_v3_api_field_extensions.filters.network.tcp_proxy.v3.TcpProxy.tunneling_config>` and the downstream connection disconnects while the the upstream connection or http/2 stream is still being established. * upstream: fix stack overflow when a cluster with large number of idle connections is removed. Removed Config or Runtime ------------------------- *Normally occurs at the end of the* :ref:`deprecation period <deprecated>` New Features ------------ Deprecated ----------