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## Features for Release VPP 19.08
### Infrastructure
- API
- API language: new types and limits support
- Python API - add support for defaults
- Export ip_types.api for out-of-tree plugins use
- Refactor ipip.api with explicit types
- DPDK
- 19.05 integration
- Remove bonding code
- Rework extended stats
- Debugging & Serviceability
- debug CLI leak-checker
- vlib: add "memory-trace stats-segment"
- vppapitrace JSON/API trace converter
- ARP: add arp-disabled node
- igmp: Trace more data from input packets
- ip: Trace the packet from the punt node
- Python API debug introspection improvements
- Pin dependencies for make test infra
- FEATURE.yaml meta-data infrastructure
- tcp: add cc stats plotting tools
- Packet tracer support for thread handoffs
- libmemif: support for multi-thread connection establishment
- svm
- fifo ooo reads/writes with multiple chunks
- support addition/removal of chunks to fifos
- vppinfra
- Mapped pcap file support
- More AVX2 and AVX512 inlines
- VLIB_INIT_FUNCTION sequencing rework
- refactor spinlocks and rwlocks
- add rbtree
- add doubly linked list
- rdma: bump rdma-core to v25.0
- stats
- Add the number of worker threads and per worker thread vector rates
- Support multiple workers for error counters
### VNET & Plugins
- New Plugins
- HTTP static page server with TLS support
- L3 cross connect
- acl: implement stat-segment counters
- arp: add feature arcs: arp-reply, arp-input, arp-proxy
- avf: improved logging and added 2.5/5 Gbps speeds
- bonding: NUMA-related improvements
- crypto: add support for AES-CTR cipher
- fib
- FIB Entry tracking
- Support the POP of a Pseudo Wire Control Word
- gbp
- Anonymous l3-out subnets support
- ARP unicast forward in gbp bridge domain
- An Endpoint can change sclass
- Consider data-plane learnt source better than control-plane
- VRF scoped contracts
- gso (experimental)
- Add support to pg interfaces
- Add support to vhost user
- Add support to native virtio
- Add support for tagged interfaces
- punt: allow to specify packets by IP protocol Type
- ip6-local: hop-by-hop protocol demux table
- ipsec
- intel-ipsec-mb version 0.52
- AH encrypt rework
- handle UDP keepalives
- support GCM in ESP
- virtio
- Refactor control queue support
- dhcp-client: DSCP marking for transmitted packets
- Idle resource usage improvements
- Allocate bihash virtual space on demand
- gre: don't register gre input nodes unless a gre tunnel is created
- gtpu: don't register udp ports unless a tunnel is created
- lacp: create lacp-process on demand
- lisp-cp: start lisp retry service on demand
- start the cdp period and dns resolver process on demand
- vat: unload unused vat plugins
- nat: api cleanup & update
- nsim: make available as an output feature
- load-balance performance improvements
- l2: Add support for arp unicast forwarding
- mactime
- Mini-ACLs
- Per-MAC allow-with-quota feature
- qos
- QoS dump APIs
- Store function
- rdma: add support for promiscuous mode (l2-switching and xconnect)
- sr: update the Segment Routing definition to be compliant with current in IETF
- udp-ping: disable due to conflict with mldv2
- vxlan-gpe: improve encap performance
- vom
- QoS support
- Bridge domain arp unicast forwarding flag
- Bridge domain unknown unicast flooding flag
### Host stack
- session
- API to support manual svm fifo resizing
- Improved session output scheduler and close state machine
- Transport and session cleanup notifications for builtin apps
- Session migration notifications for builtin apps
- Support for no session layer lookup transports (quic and tls)
- Ability to retrieve local/remote endpoint in transport vft
- Cleanup segment manager and fifo segment
- Fix vpp to app msg generation on enqueue fail
- Improve event logging
- Moved test applications to hsa plugin
- tcp
- Congestion control algorithm enhancements
- Delivery rate estimator
- ACK/retransmission refactor and pacing
- Add tcp-input sibling nodes without full 6-tuple lookup
- More RFC4898 connection statistics
- Allow custom output next node
- Allow custom congestion control algorithms
- quic
- Multi-thread support
- Logs readability improvements
- Multistream support
- tls
- Fix close with data and listen failures
- Handle TCP transport rests
- Support endpoint retrieval interface
- vcl
- support quic streams and "connectable listeners"
- worker unregister api
- fix epoll with large events batch
- ldp: add option to enable transparent TLS connections
- udp:
- support close with data
- fixed session migration
- sctp
- add option to enable/disable default to disable
- moved from vnet to plugins
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