# F-Stack Release Note F-Stack is an open source network framework based on DPDK. 2018.5 F-Stack v1.12 1. Fixed some bugs. 2. Nginx: host event supported. 3. kern_timeout: decrease the cpu usage of timer. 4. DPDK: upgrade to 17.11.2 LTS. 2017.11 F-Stack v1.11 1. Intel DPDK network I/O module. 2. FreeBSD Network Stack. 3. Nic offload: checksum(IP/TCP/UDP), TSO, VLAN, etc. 4. Network tools: sysctl, ifconfig, route, netstat, top, etc. 5. Firewall supported: ipfw. 6. Netgraph supported: ngctl. 7. Posix-like API: socket,event. 8. Coroutine API. 9. Python bindings for F-Stack: pyfstack. 10. App: Nginx/Redis supported.