# F-Stack Release Note

 F-Stack is an open source network framework based on DPDK.

2019.11 F-Stack v1.13

  1. F-Stack lib:

  - Fix some bugs.
  - Add interface `ff_dup`, `ff_dup2``ff_ioctl_freebsd`, `ff_getsockopt_freebsd`, `ff_setsockopt_freebsd`.
  - Initial parameter `proc-type` can be NULL, default "auto".
  - Add "idle_sleep" parameter to reduce CPU usage when no pkts incomming, add `base_virtaddr` parameter for some vms.
  - Add arch arm64 compiler options.
  - Support Container(Docker).
  - Support vlan.

  2. Nginx:

  - Fix some bugs.
  - Hook `getpeername`,`getsockname`,`shutdown`.
  - Support "master_process off".

  3. Redis:

  - Reset cpu affinity when new process forked.

  4. Tools:

  - Add `traffic` tool.

  5. DPDK:

  - Upgrade to 17.11.4 LTS.

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.