More than 700 commits since the 19.01 release.

Features

Infrastructure

DPDK 19.02 integration
Buffer manager rework and improvements
Python3 migration (work in progress)
- vppapigen
- Python API wrappers
- Docs generation
- vpp_config
- "make test" python3 readiness and refactoring
Add "make test-gcov" target to main Makefile
Refactor multiarch code
vfctl script: bind VF to vfio-pci after VF is created
cmake cross-compilation support
CLI control of graph dispatch elogs
AppImage packaging (disabled by default)
Complete upstreaming of wireshark dissector
Remove JVPP which is now an FD.io project
Punt infra: manage dispatch of exception packets

VNET & Plugins

BVI Interface
Deprecate TAP cli
Experimental TAP interface TCP segmentation offload
Vmxnet3 driver plugin
LACP passive mode
ACL plugin refactoring
RDMA (ibverb) driver plugin - MLX5 with multiqueue
IPSEC
- Intel IPSEC-MB engine plugin
- Tunnel fragmentation
- CLI improvements
- Performance improvements
- API modernisation and improvements
- New Tests and test refactoring
Crypto
- Introduce crypto infra
- crypto_ia32 plugin
- Add support for AEAD and AES-GCM
- Implement rfc4231 test cases
- Implement crypto tests per RFC2202
Perfmon improvements
- Python to C parser for intel CPUs
- 2-way parallel stat collection
- Collect data on selected thread(s)

Host stack

Improve ldp/vls/vcl support for multi-process and multi-threaded applications
Major refactor/cleanup of session layer
Refactor cut-through sessions to use a custom transport
Baseline QUIC transport support

Known issues

For the full list of issues please refer to fd.io JIRA.

Issues fixed

For the full list of fixed issues please refer to:

fd.io JIRA
git commit log

API changes

Description of results:

Definition changed: indicates that the API file was modified between releases.
Only in image: indicates the API is new for this release.
Only in file: indicates the API has been removed in this release.

Message Name	Result
accept_session	only in file
accept_session_reply	only in file
bind_sock_reply	definition changed
bind_uri_reply	definition changed
bvi_create	only in image
bvi_create_reply	only in image
bvi_delete	only in image
bvi_delete_reply	only in image
connect_session	only in file
connect_session_reply	only in file
ct6_enable	only in image
ct6_enable_disable	only in image
gbp_contract_add_del_reply	definition changed
gbp_endpoint_group_del	definition changed
gbp_endpoint_learn_set_inactive_threshold	only in file
gbp_endpoint_learn_set_inactive_threshold_reply	only in file
ikev2_plugin_get_version	only in image
ikev2_plugin_get_version_reply	only in image
ip4_arp_event	definition changed
ip6_nd_event	definition changed
ip6_ra_event	definition changed
ip6nd_proxy_add_del	definition changed
ip6nd_proxy_details	definition changed
ip_container_proxy_add_del	definition changed
ip_neighbor_add_del	definition changed
ip_neighbor_details	definition changed
ip_probe_neighbor	definition changed
ip_source_and_port_range_check_add_del	definition changed
ipsec_backend_details	definition changed
ipsec_gre_add_del_tunnel	only in file
ipsec_gre_add_del_tunnel_reply	only in file
ipsec_gre_tunnel_add_del	only in image
ipsec_gre_tunnel_add_del_reply	only in image
ipsec_gre_tunnel_details	definition changed
ipsec_sa_details	definition changed
ipsec_sa_set_key	definition changed
ipsec_sad_add_del_entry	only in file
ipsec_sad_add_del_entry_reply	only in file
ipsec_sad_entry_add_del	only in image
ipsec_sad_entry_add_del_reply	only in image
ipsec_select_backend	definition changed
ipsec_spd_add_del_entry	only in file
ipsec_spd_add_del_entry_reply	only in file
ipsec_spd_details	definition changed
ipsec_spd_entry_add_del	only in image
ipsec_spd_entry_add_del_reply	only in image
ipsec_tunnel_if_add_del	definition changed
lb_conf	definition changed
map_add_domain	definition changed
map_domain_details	definition changed
nat_ha_flush	only in image
nat_ha_flush_reply	only in image
nat_ha_get_failover	only in image
nat_ha_get_failover_reply	only in image
nat_ha_get_listener	only in image
nat_ha_get_listener_reply	only in image
nat_ha_resync	only in image
nat_ha_resync_completed_event	only in image
nat_ha_resync_reply	only in image
nat_ha_set_failover	only in image
nat_ha_set_failover_reply	only in image
nat_ha_set_listener	only in image
nat_ha_set_listener_reply	only in image
reset_session	only in file
reset_session_reply	only in file
sw_interface_ip6nd_ra_prefix	definition changed
sw_interface_set_dpdk_hqos_pipe	only in file
sw_interface_set_dpdk_hqos_pipe_reply	only in file
sw_interface_set_dpdk_hqos_subport	only in file
sw_interface_set_dpdk_hqos_subport_reply	only in file
sw_interface_set_dpdk_hqos_tctbl	only in file
sw_interface_set_dpdk_hqos_tctbl_reply	only in file
sw_interface_tap_details	only in file
sw_interface_tap_dump	only in file
sw_interface_virtio_pci_details	only in image
sw_interface_virtio_pci_dump	only in image
tap_connect	only in file
tap_connect_reply	only in file
tap_delete	only in file
tap_delete_reply	only in file
tap_modify	only in file
tap_modify_reply	only in file
virtio_pci_create	only in image
virtio_pci_create_reply	only in image
virtio_pci_delete	only in image
virtio_pci_delete_reply	only in image
vmxnet3_create	definition changed
vmxnet3_details	definition changed
want_ip4_arp_events	definition changed
want_ip6_nd_events	definition changed

Found 90 api message signature differences

Patches that changed API definitions

`src/vlibmemory/memclnt.api`
eaec2a6d9	bapi: add options to have vpp cleanup client registration

`src/vpp/api/vpe.api`
1aaf0e343	deprecate tapcli
f49ba0e81	stats: Deprecate old stats framework
413f4a5b2	API: Use string type instead of u8.

`src/vnet/interface.api`
3b0d7e42f	Revert "API: Cleanup APIs interface.api"
e63325e3c	API: Cleanup APIs interface.api
bb2c7b580	Update documentation for src/vnet/interface.api sw_interface_dump
f49ba0e81	stats: Deprecate old stats framework
53fffa1db	API: Add support for type aliases
5100aa9cb	vnet: store hw interface speed in kbps instead of using flags

`src/vnet/interface_types.api`
3b0d7e42f	Revert "API: Cleanup APIs interface.api"
e63325e3c	API: Cleanup APIs interface.api
53fffa1db	API: Add support for type aliases

`src/vnet/bonding/bond.api`
ad9d52831	bonding: support custom interface IDs

`src/vnet/ipip/ipip.api`
53fffa1db	API: Add support for type aliases

`src/vnet/ipsec-gre/ipsec_gre.api`
e524d45ef	IPSEC-GRE: fixes and API update to common types.

`src/vnet/syslog/syslog.api`
b4515b4be	Add RFC5424 syslog protocol support (VPP-1139)

`src/vnet/devices/tap/tapv2.api`
754f24b35	tapv2: add "tap_flags" field to the TAPv2 interface API

`src/vnet/devices/virtio/virtio.api`
d6c15af33	virtio: Native virtio driver

`src/vnet/fib/fib_types.api`
775f73c6b	FIB: encode the label stack in the FIB path during table dump

`src/vnet/ip/ip_types.api`
8c8acc027	API: Change ip4_address and ip6_address to use type alias.
ffba3c377	MAP: Use explicit address/prefix types in API

`src/vnet/ip/ip.api`
48ae19e90	API: Add python2.7 support for enum flags via aenum
37029305c	Use IP and MAC API types for neighbors
7c03ed47d	VOM: mroutes
3460b014a	api: ip_source_check_interface_add_del api is added.
609e1210c	VPP-1507: Added binary api to dump configured ip_punt_redirect
2af0e3a74	flow-hash: Add symmetric flag for flow hashing
47527b24a	IP-punt: add documentation to the API and fix IP address init
5bb1ecae8	IPv6: Make link-local configurable per-interface (VPP-1446)
75b9f45a1	ip: add container proxy dump API (VPP-1364)

`src/vnet/ip/punt.api`
e88865d7b	VPP-1506: dump local punts and registered punt sockets

`src/vnet/vxlan-gbp/vxlan_gbp.api`
4dd4cf4f9	GBP: fixes for l3-out routing
93cc3ee3b	GBP Endpoint Learning

`src/vnet/ethernet/ethernet_types.api`
8006c6aa4	PAPI: Add MACAddress object wrapper for vl_api_mac_address_t

`src/vnet/ipsec/ipsec.api`
1e3aa5e21	ipsec: USE_EXTENDED_SEQ_NUM -> USE_ESN
1ba5bc8d8	ipsec: add ipv6 support for ipsec tunnel interface
5d704aea5	updates now that flags are supported on the API
53f526b68	TEST: IPSEC NAT-T with UDP header
7c44d78ef	IKEv2 to plugin
eba31eceb	IPSEC: move SA counters into the stats segment
8d7c50200	IPSEC: no second lookup after tunnel encap
a09c1ff5b	IPSEC: SPD counters in the stats sgement
17dcec0b9	IPSEC: API modernisation
4c422f9a3	Add IPSec interface FIB index for TX packet
b4a7a7dcf	Add UDP encap flag
b4d305344	ipsec: infra for selecting backends
871bca9aa	VPP-1450: binary api call for dumping SPD to interface registration

`src/vnet/tcp/tcp.api`
c5df8c71c	host stack: update stale copyright

`src/vnet/l2/l2.api`
192b13f96	BVI Interface
5daf0c55c	add default NONE flag for bd_flags
e26c81fc8	L2 BD API to flush all IP-MAC entries in the specified BD
8006c6aa4	PAPI: Add MACAddress object wrapper for vl_api_mac_address_t
93cc3ee3b	GBP Endpoint Learning
4d5b917b1	BD ARP entry use common API types

`src/vnet/session/session.api`
6442401c2	session: remove deprecated binary apis
d85de68ec	vcl: wait for segments with segment handle
fa76a76bf	session: segment handle in accept/connect notifications
c1f5a4336	session: cleanup use of api_client_index
c0d532d17	session: mark apis for deprecation

`src/vnet/udp/udp.api`
c5df8c71c	host stack: update stale copyright

`src/plugins/cdp/cdp.api`
76ef6094c	tests: cdp plugin. Replace cdp enable cli command with API call.

`src/plugins/nat/nat.api`
8feeaff56	Typos. A bunch of typos I've been collecting.
34931eb47	NAT44: active-passive HA (VPP-1571)
b686508c4	NAT44: nat44_add_del_lb_static_mapping enhancements (VPP-1514)

`src/plugins/map/map.api`
4dc5c7b90	MAP: Add optional user-supplied 'tag' field in MAPs.
fc7344f9b	MAP: Convert from DPO to input feature.
f34597fc8	MAP: Add API support for MAP input feature.
5a2e278a0	MAP: Add API support for setting parameters.
a173a7a07	MAP: Use bool type in map.api instead of u8.
ffba3c377	MAP: Use explicit address/prefix types in API

`src/plugins/gbp/gbp.api`
1aa35576e	GBP: Counters per-contract
8ea109e40	gbp: Add bd flags
7bd343509	GBP: custom-dump functions
fa0ac2c56	GBP: contracts API fixed length of allowed ethertypes
5d704aea5	updates now that flags are supported on the API
4ba67723d	GBP: use sclass in the DP for policy
8da9fc659	GBP: learn from ARP and L2 packets
32f6d8e0c	GBP: per-group EP retention policy
879d11c25	GBP: Sclass to src-epg conversions
1c17e2eca	GBP: add allowed ethertypes to contracts
b6a479539	GBP: l3-out subnets
33b81da54	vom: Add support for redirect contracts in gbp
13a08cc09	GBP: redirect contracts
c29c0af40	GBP: Endpoints with VLAN tags and birdges that don't learn
93cc3ee3b	GBP Endpoint Learning

`src/plugins/acl/acl.api`
bb5d22daf	New api in order to get max entries of connection table is added.

`src/plugins/vmxnet3/vmxnet3.api`
ee8ba6877	vmxnet3: auto bind support
854559d15	vmxnet3: RSS support
773291163	vmxnet3: multiple TX queues support

`src/plugins/nsim/nsim.api`
10c5ff143	nsim: add packet loss simulation, docs

`src/plugins/igmp/igmp.api`
97748cae2	IGMP: proxy device

`src/plugins/lb/lb.api`
f7f13347b	tests: update test_lb.py to use api call lb_conf.

`src/plugins/ct6/ct6.api`
a55df1081	ipv6 connection tracking plugin

`src/plugins/ikev2/ikev2.api`
7c44d78ef	IKEv2 to plugin