Changes:

2010-09-07 - v0.7.3
	* fixed re-association after WPS not initializing WPA state machine in
	  some cases
	* fixed WPS IE update on reconfiguration
	* fixed WPS code not to proxy Probe Request frames for foreign SSIDs
	* added WPS workaround for open networks and some known interop issues
	* fixed WPS Diffie-Hellman derivation to use correct public key length
	* fixed FT RRB messages on big endian CPUs
	* changed WPS protection for brute force AP PIN attacks to disable AP
	  PIN only temporarily (but with increasing time) to avoid usability
	  issues on Label-only devices
	* added wps_ap_pin command for more secure handling of AP PIN
	  operations (e.g., to generate a random AP PIN and only use it for
	  short amount of time)
	* fixed HT STBC negotiation

2010-04-18 - v0.7.2
	* fix WPS internal Registrar use when an external Registrar is also
	  active
	* bsd: Cleaned up driver wrapper and added various low-level
	  configuration options
	* TNC: fixed issues with fragmentation
	* EAP-TNC: add Flags field into fragment acknowledgement (needed to
	  interoperate with other implementations; may potentially breaks
	  compatibility with older wpa_supplicant/hostapd versions)
	* cleaned up driver wrapper API for multi-BSS operations
	* nl80211: fix multi-BSS and VLAN operations
	* fix number of issues with IEEE 802.11r/FT; this version is not
	  backwards compatible with old versions
	* add SA Query Request processing in AP mode (IEEE 802.11w)
	* fix IGTK PN in group rekeying (IEEE 802.11w)
	* fix WPS PBC session overlap detection to use correct attribute
	* hostapd_notif_Assoc() can now be called with all IEs to simplify
	  driver wrappers
	* work around interoperability issue with some WPS External Registrar
	  implementations
	* nl80211: fix WPS IE update
	* hostapd_cli: add support for action script operations (run a script
	  on hostapd events)
	* fix DH padding with internal crypto code (mainly, for WPS)
	* fix WPS association with both WPS IE and WPA/RSN IE present with
	  driver wrappers that use hostapd MLME (e.g., nl80211)

2010-01-16 - v0.7.1
	* cleaned up driver wrapper API (struct wpa_driver_ops); the new API
	  is not fully backwards compatible, so out-of-tree driver wrappers
	  will need modifications
	* cleaned up various module interfaces
	* merge hostapd and wpa_supplicant developers' documentation into a
	  single document
	* fixed HT Capabilities IE with nl80211 drivers
	* moved generic AP functionality code into src/ap
	* WPS: handle Selected Registrar as union of info from all Registrars
	* remove obsolte Prism54.org driver wrapper
	* added internal debugging mechanism with backtrace support and memory
	  allocation/freeing validation, etc. tests (CONFIG_WPA_TRACE=y)
	* EAP-FAST server: piggyback Phase 2 start with the end of Phase 1
	* WPS: add support for dynamically selecting whether to provision the
	  PSK as an ASCII passphrase or PSK
	* added support for WDS (4-address frame) mode with per-station virtual
	  interfaces (wds_sta=1 in config file; only supported with
	  driver=nl80211 for now)
	* fixed WPS Probe Request processing to handle missing required
	  attribute
	* fixed PKCS#12 use with OpenSSL 1.0.0
	* detect bridge interface automatically so that bridge parameter in
	  hostapd.conf becomes optional (though, it may now be used to
	  automatically add then WLAN interface into a bridge with
	  driver=nl80211)

2009-11-21 - v0.7.0
	* increased hostapd_cli ping interval to 5 seconds and made this
	  configurable with a new command line options (-G<seconds>)
	* driver_nl80211: use Linux socket filter to improve performance
	* added support for external Registrars with WPS (UPnP transport)
	* 802.11n: scan for overlapping BSSes before starting 20/40 MHz channel
	* driver_nl80211: fixed STA accounting data collection (TX/RX bytes
	  reported correctly; TX/RX packets not yet available from kernel)
	* added support for WPS USBA out-of-band mechanism with USB Flash
	  Drives (UFD) (CONFIG_WPS_UFD=y)
	* fixed EAPOL/EAP reauthentication when using an external RADIUS
	  authentication server
	* fixed TNC with EAP-TTLS
	* fixed IEEE 802.11r key derivation function to match with the standard
	  (note: this breaks interoperability with previous version) [Bug 303]
	* fixed SHA-256 based key derivation function to match with the
	  standard when using CCMP (for IEEE 802.11r and IEEE 802.11w)
	  (note: this breaks interoperability with previous version) [Bug 307]
	* added number of code size optimizations to remove unnecessary
	  functionality from the program binary based on build configuration
	  (part of this automatic; part configurable with CONFIG_NO_* build
	  options)
	* use shared driver wrapper files with wpa_supplicant
	* driver_nl80211: multiple updates to provide support for new Linux
	  nl80211/mac80211 functionality
	* updated management frame protection to use IEEE Std 802.11w-2009
	* fixed number of small WPS issues and added workarounds to
	  interoperate with common deployed broken implementations
	* added some IEEE 802.11n co-existance rules to disable 40 MHz channels
	  or modify primary/secondary channels if needed based on neighboring
	  networks
	* added support for NFC out-of-band mechanism with WPS
	* added preliminary support for IEEE 802.11r RIC processing