+* ethdev: Update API functions returning ``void`` to return ``int`` with
+ negative errno values to indicate various error conditions (e.g.
+ invalid port ID, unsupported operation, failed operation):
+
+ - ``rte_eth_dev_stop``
+ - ``rte_eth_dev_close``
+
+* ethdev: New offload flags ``DEV_RX_OFFLOAD_FLOW_MARK`` will be added in 19.11.
+ This will allow application to enable or disable PMDs from updating
+ ``rte_mbuf::hash::fdir``.
+ This scheme will allow PMDs to avoid writes to ``rte_mbuf`` fields on Rx and
+ thereby improve Rx performance if application wishes do so.
+ In 19.11 PMDs will still update the field even when the offload is not
+ enabled.
+
+* cryptodev: support for using IV with all sizes is added, J0 still can
+ be used but only when IV length in following structs ``rte_crypto_auth_xform``,
+ ``rte_crypto_aead_xform`` is set to zero. When IV length is greater or equal
+ to one it means it represents IV, when is set to zero it means J0 is used
+ directly, in this case 16 bytes of J0 need to be passed.
+
+* sched: To allow more traffic classes, flexible mapping of pipe queues to
+ traffic classes, and subport level configuration of pipes and queues
+ changes will be made to macros, data structures and API functions defined
+ in "rte_sched.h". These changes are aligned to improvements suggested in the
+ RFC https://mails.dpdk.org/archives/dev/2018-November/120035.html.
+
+* metrics: The function ``rte_metrics_init`` will have a non-void return
+ in order to notify errors instead of calling ``rte_exit``.
+
+* power: ``rte_power_set_env`` function will no longer return 0 on attempt
+ to set new power environment if power environment was already initialized.
+ In this case the function will return -1 unless the environment is unset first
+ (using ``rte_power_unset_env``). Other function usage scenarios will not change.