ns-3 RELEASE NOTES

This file contains ns-3 release notes (most recent releases first).  

All of the ns-3 documentation is accessible from the ns-3 website: 

http://www.nsnam.org including tutorials: http://www.nsnam.org/tutorials.html

Consult the file CHANGES.html for more detailed information about changed

API and behavior across ns-3 releases.

Release 3-dev

============

Availability

------------

This release is not yet available.

Supported platforms

-------------------

To be determined.

New user-visible features

-------------------------

- (internet) The native TCP implementation has been refactored, for the following

  improvements:  1) congestion control has been aligned with the Linux

  architecture, to facilitate easier coding of new congestion control algorithms

  or porting implementations from the Linux kernel, 2) Fast Retransmit and Fast

  recovery algorithms, compliant to RFCs, are shared by all TCP variants, unlike

  previous releases. 3) TCP Hybla and TCP HighSpeed have been added.

- (routing) The PrintRoutingTable* functions now print the following informations

  each time they are called: 1) the node ID, 2) the global time, 3) the local time

  4) the routing protocol type

- (internet) L4 protocols (e.g., TCP, UDP, ICMP, etc.) can be demultiplexed by IP

  according to the incoming interface. In other words, it is now possible to

  use specialized L4 protocols according to the interface.

- (internet) Ipv6Address::IsAllHostsMulticast() is now deprecated. FF02::3 is not

  in the official reserved IPv6 multicast address list.

- (internet) Ipv6Address::IsAll[Nodes,Routers]Multicast() now checks the address

  scope beyond the simple link-local. Nodes are checked for Interface-Local, Link-Local

  and Realm-Local, Routers for the above plus Site-Local.

- (internet) Ipv6 routing protocols must now *not* forward packets to upper layers

  unless for extremey specific cases. The Ipv6L3protocol handles almost all the

  packets directed to the host.

- (internet) Ipv6 can now reject packets directed to an address not configured on 

  the interface they are received from (Strong End System Model, RFC 1222).

- (internet) UDP and Ipv6 RAW sockets can now join Ipv6 multicast groups.

  Incomin packets will be filtered according to if there's a socket listening to

  that group. Source filtering is left to the application.

Bugs fixed

----------

- Bug 1132 - useless for loops in block-ack-test-suite.cc

- Bug 1571 - TCP zero-window and flow control window updates by the receiver

- Bug 1761 - Rounding with olsr::EmfToSeconds

- Bug 1954 - Serialized size of wifi-net-device differ for TX and RX trace

- Bug 2003 - Missing DSSS short PLCP preamble

- Bug 2041 - TCP RTO needs unit tests

- Bug 2150 - The TCP sender keeps retransmitting and does not terminate the connection after some retries.

- Bug 2159 - TCP advertises wrong receive window

- Bug 2176 - Building IPv4 address from char* doesn't look reliable

- Bug 2183 - LiIonEnergySourceHelper is not in the energy wscript

- Bug 2185 - WiFi MacLow may respond to errored frames that it should ignore

- Bug 2193 - Simulation fails when transmitting very small MPDU subframes

- Bug 2195 - Udp[*]Client can't send packets to broadcast address

- Bug 2201 - Simulation fails when active probing is used in 802.11n/ac with channel bonding enabled

- Bug 2207 - Print node ID and time when printing routing tables

- Bug 2206 - Split internet-apps from applications

- Bug 2208 - Interface index based L4 protocols

- Bug 2211 - Ipv{4,6}EndPoint can cause memory corruption

- Bug 2219 - SixLowPanNetDevice hangs trying to decode a IPv6 Fragment extension header

- Bug 2233 - Implement RFC 1222 - Strong End System Model

- Bug 2234 - Ipv6L3Protocol should trash multicast packets not interesting for the node

- Bug 2238 - Ipv6 routing reorganization

- Bug 2242 - Mobility of both sender PHY and receiver PHY set to sender mobility in lr-wpan-phy-test.cc example.

Known issues

------------

In general, known issues are tracked on the project tracker available

at http://www.nsnam.org/bugzilla/

Release 3.24.1

==============

Release 3.24.1 is a maintenance release that fixes three issues:

- support for Xcode 7 clang compiler version

- detection of Python bindings location

- compilation problem on 32-bit gcc-4.4 machine

The issues prevented selected systems from being able to successfully

build ns-3, and prevented the released version from being able to

detect the presence of pybindgen used for Python bindings.

Availability

------------

This release is available from:

https://www.nsnam.org/release/ns-allinone-3.24.1.tar.bz2

Supported platforms

-------------------

This release has been tested on the following platforms:

- Ubuntu 15.04 (64 bit) with g++-4.9.2

- Fedora Core 22 (32 bit) with g++-5.1.1

- Fedora Core 21 (64 bit) with g++-4.9.2

- Ubuntu 14.04 (64 bit) with g++-4.8.2

- Ubuntu 12.04.4 (64 bit) with g++-4.6.3

- CentOS/RHEL 6.7 (64-bit) with g++-4.4.7

- OS X Yosemite 10.10.5 with Xcode 7 and Apple LLVM version 7.0.0

- OS X Yosemite 10.10.5 with Xcode 6.4 and Apple LLVM version 6.1.0

- FreeBSD 10.2-RELEASE (64 bit) with clang-3.4.1

New user-visible features

-------------------------

Features are identical to release 3.24.

Bugs fixed

----------

- Bug 2181 - Xcode 7.0 compiler warnings trigger build failure

- Bug 2182 - pybindgen required version is now a string literal

- Bug 2184 - integer overflow in MacLow

Release 3.24

============

Availability

------------

This release is available from:

https://www.nsnam.org/release/ns-allinone-3.24.tar.bz2

Supported platforms

-------------------

This release has been tested on the following platforms:

- Ubuntu 15.04 (64 bit) with g++-4.9.2

- Fedora Core 22 (32 bit) with g++-5.1.1

- Fedora Core 21 (64 bit) with g++-4.9.2

- Ubuntu 14.04 (64 bit) with g++-4.8.2

- Ubuntu 12.04.4 (32/64 bit) with g++-4.6.3

- CentOS/RHEL 6.7 (64-bit) with g++-4.4.7

- OS X Yosemite 10.10.4 with Xcode 6.4 and Apple LLVM version 6.1.0

- FreeBSD 10.1-RELEASE (64 bit) with clang-3.4.1

New user-visible features

-------------------------

- (build system) Python 3 is now supported by waf and test runner programs

- (wifi) 802.11ac Very High Throughput (VHT) physical layer modes are now 

  supported.

- (internet) permanent (static) ARP entries can be created for IPv4

- (network) SimpleChannel allows per-NetDevice blacklists, in order to do hidden terminal testcases.

- (documentation) TracedCallback function signatures now documented in Doxygen

Bugs fixed

----------

- Bug 730 - Enabling fragmentation at run-time breaks simulation

- Bug 1249 - doxygen comments on device-level SetMobility ()

- Bug 1482 - mesh module was producing fatal error with ASCII and netanim traces

- Bug 1557 - errors in function OpenFlowSwitchNetDevice::BufferFromPacket()

- Bug 1681 - m_lastNavStart is assigned twice continuously

- Bug 1736 - default dot11EDCATableMSDULifetime

- Bug 1901 - mesh module producing malformed pcaps

- Bug 1929 - TcpL4Protocol::Send must indicate the source address to routing (if known)

- Bug 1982 - AODV and mesh modules use random variables before seeds can be set

- Bug 2058 - TCP window update can shrink left edge of window

- Bug 2063 - FdNetDevice::SendFrom assert does not account for headers correctly

- Bug 2082 - Empirical RV fails if value provided in CDF function is negative

- Bug 2093 - MultiModelSpectrumChannel::GetDevice only works for 0-th index

- Bug 2096 - Wrong pcap information when MPDU aggregation is used

- Bug 2104 - Sequence Number passed to QosUtilsMapSeqControlToUniqueInteger instead of Sequence Control

- Bug 2108 - Erroneous implementation in InterferenceHelper

- Bug 2119 - Fix memory leaks in FdNetDevice test due to non-executed events

- Bug 2124 - UdpSocketImpl::ShutdownRecv doesn't stop the Ipv[4,6]EndPointDemux

- Bug 2125 - subclasses must chain up to base class NotifyNewAggregate

- Bug 2126 - LrWpanNetDevice silently accepts no mobility on the node

- Bug 2127 - Scheduler benchmark utility works in first run only

- Bug 2130 - Allow SimpleChannel to simulate hidden terminals

- Bug 2132 - TcpL4Protocol sends a bad-formatted RST packet

- Bug 2135 - TCP doesn't honor the socket's output interface

- Bug 2136 - The usage of tid in wifi and wave module shall be "if (tid > 7)" rather than "if (tid >= 7)"

- Bug 2138 - SimpleNetDevice could send overlapped packets

- Bug 2143 - maybe-uninitialized warning

- Bug 2146 - bug in WAVE channel coordination

- Bug 2148 - Ipv6Interface::SetUp doesn't re-create the Link-Local addresses

- Bug 2153 - Incorrect power limits in wifi power control algorithms

- Bug 2154 - Incorrect power calculation in wifi power adaptation examples

- Bug 2156 - Duplicate packets when using two level aggregation

- Bug 2157 - OpenFlowSwitchNetDevice::BufferFromPacket setting eth_type incorrectly

- Bug 2158 - OpenflowSwitchNetDevice flooding bug

- Bug 2165 - server replies to SYN (with option TS) with a SYNACK (with option TS) also if the attribute Timestamp is false

- Bug 2166 - SteadyStateRandomWaypointMobilityModel directs the node to the ground

- Bug 2170 - AnimationInterface outputs improperly formed XML

- Bug 2171 - power-adaptation-distance.cc:202:22: error: call to 'pow' is ambiguous

- Bug 2173 - WifiInformationElement::DeserializeIfPresent attempts to read beyond the end of buffer

- Bug 2174 - m_rWnd not updated when segments without ACK are received

- Bug 2177 - Ipv6ExtensionFragmentHeader length is initialized to a wrong value.

Known issues

------------

In general, known issues are tracked on the project tracker available

at http://www.nsnam.org/bugzilla/

Release 3.23

============

Availability

------------

This release is available from:

http://www.nsnam.org/release/ns-allinone-3.23.tar.bz2

Supported platforms

-------------------

This release has been tested on the following platforms:

- Ubuntu 15.04 (64 bit) with g++-4.9.2

- Fedora Core 21 (64 bit) with g++-4.9.2

- Ubuntu 14.04 (64 bit) with g++-4.8.2

- Ubuntu 12.04.4 (32/64 bit) with g++-4.6.3

- CentOS/RHEL 6.6 (64-bit) with g++-4.4.7

- OS X Yosemite 10.10.3 with Xcode 6.3.1 and Apple LLVM version 6.1.0

- FreeBSD 10.1-RELEASE (64 bit) with clang-3.4.1

New user-visible features

-------------------------

- (network) CalculateTxTime has been declared obsolete.

  CalculateBytesTxTime and CalculateBitsTxTime are to be used instead.

  The return value is a Time, instead of a double.

- (mobility) Classes added for converting geographic to cartesian coordinates.

- (spectrum) TvSpectrumTransmitter models added to create television 

  transmitter(s) that transmit PSD spectrums customized by attributes such 

  as modulation type, power, antenna type, channel frequency, etc.

- (wifi) Several model improvements have been made.  Access points now 

  establish BSSBasicRateSet for control frame transmissions.  PLCP header 

  and payload reception have been decoupled for improved PHY modeling

  accuracy.  RTS/CTS with A-MPDU is now fully supported, and 802.11n

  stations now support two-level aggregation.

Bugs fixed

----------

- Bug 1757 - RLC AM not using NACK_SN

- Bug 1974 - CalculateTxTime should return a Time, not a double

- Bug 1982 - AODV and mesh use random variables before seed can be set

- Bug 2004 - Wrong timeout calculation for 802.11n in WifiMac

- Bug 2008 - (lr-wpan) Crash if ending rx while status change is in progress

- Bug 2025 - (lr-wpan) Changing the channel doesn't affect the Tx params

- Bug 2034 - (lr-wpan) CSMA-CA BackoffPeriod is too short 

- Bug 2054 - TCP window update can shrink the Left Edge of the window

- Bug 2066 - A-MPDU reception should check for successful preamble

- Bug 2067 - TCP performance when advertised window exceeds sender buffer size

- Bug 2070 - Wrong report of Packets and Bytes stored in CoDeL

- Bug 2073 - NDisc cache entries update timer might be stuck in a loop

- Bug 2075 - A-MPDU using RTS/CTS behaves wrongly when MaxSsrc is reached

- Bug 2076 - TCP MinRTO Attribute is not actually used

- Bug 2077 - Icmpv6L4Protocol::HandleDestinationUnreachable must check the packet size, not its serialized size

- Bug 2079 - mcs variable in ht-wifi-network example is confusing

- Bug 2082 - Empirical RV fails if the value provided in the CDF member function is negative

- Bug 2083 - BridgeNetDevice may send corrupted packets

- Bug 2087 - Waf fails to build ns-3 if the path contains accented characters

- Bug 2090 - (rip-ng) Routes may be added twice on interface activation

- Bug 2093 - MultiModelSpectrumChannel::GetDevice only works for 0-th index

- Bug 2095 - (wimax) Wrong values in default-traces.h for 16 QAM 3/4

- Bug 2097 - ACKs should be sent using legacy rates and preambles in 802.11n

- Bug 2103 - Ipv[4,6]RoutingHelper::PrintRoutingTableAll[At,Every] hangs if a node doesn't have IP

Known issues

------------

In general, known issues are tracked on the project tracker available

at http://www.nsnam.org/bugzilla/

Release 3.22

============

Availability

------------

This release is available from:

http://www.nsnam.org/release/ns-allinone-3.22.tar.bz2

Supported platforms

-------------------

This release has been tested on the following platforms:

- Fedora Core 21 (64 bit) with g++-4.9.2

- Ubuntu 14.10 (32 bit) with g++-4.9.1

- Ubuntu 14.04 (64 bit) with g++-4.8.2

- Ubuntu 12.04.4 (32/64 bit) with g++-4.6.3

- CentOS/RHEL 6.6 (64-bit) with g++-4.4.7

- OS X Yosemite 10.10 with Xcode 6.1.1 and clang-600.0.56

- FreeBSD 10.1-RELEASE (64 bit) with clang-3.4.1

New user-visible features

-------------------------

- (wifi) Support for MPDU aggregation has been added to the wifi model, 

  as well as a number of related example programs.

- (wifi) Added two combined power and rate control mechanisms to the

  wifi module.  The new mechanisms, PARF and APARF, are the first in the

  wifi module to jointly control transmission power and data rate.  Two use 

  case examples (PowerAdaptationDistance and PowerAdaptationInterference) 

  and a test case have also been added.

- (lte) In previous releases of the LTE module, the bearer release

  functionality was only partially supported. As an enhancement, a

  complete release bearer procedure is now implemented, which can be

  invoked by calling the new helper method

  LteHelper::DeActivateDedicatedEpsBearer(). The related output can be

  seen through the stats collected at different layers like PDCP, RLC,

  MAC, PHY. To support this implementation, an example and test suite is

  added within the LTE module examples and tests folder.  

- (wave) Additional support has been added for WiFi-based vehicular networks, 

  including the channel-access coordination features of IEEE 1609.4 and a 

  comprehensive VANET routing example that includes a Basic Safety 

  Message (BSM) packet generator application and associated statistics 

  counters.  Together, these allow users to evaluate the performance effects 

  in a VANET of varying transmission and channel properties (e.g., packet 

  rate, message size, transmit power, propagation loss model, impact of 

  routing protocol traffic, etc.).

- (internet) It is now possible to print the Neighbor Cache (ARP and NDISC) 

  by using the RoutingProtocolHelper

- (stats) A new TimeProbe class has been added to hook the data collection 

  framework to traced values emitting Time objects

- (documentation) the callback function signatures for all TraceSources

  is documented in Doxygen

- (utils) print-introspected-doxygen.cc has had several enhancements;

  use -h to read the usage message for details.

- (core) TracedValue and TracedCallback function signatures are now documented,

  which required changing the TypeId::AddTraceSource API.

Bugs fixed

----------

- Bug 1405 - RttEstimator improvements

- Bug 1551 - NS_LOG_COMPONENT_DEFINE inside or outside of ns3 namespace?

- Bug 1726 - WiFi Minstrel rate control algorithm doesn't save state

- Bug 1734 - TcpSocketBase produces spurious delayed ACKs

- Bug 1758 - Yans and Nist error rate models for 5/6 code rate 802.11n HT

- Bug 1770 - mesh test and example crash for 32-bit optimized builds

- Bug 1774 - compute signal power around channel, not across whole band, and fix LrWpanHelper to add a default PropagationDelayModel

- Bug 1791 - TCP Endpoint never deallocates when closing

- Bug 1801 - Setting Wi-Fi timing parameters through WifiMac attributes (documentation fix)

- Bug 1906 - 802.11n PHY configuration for 2.4GHz and 5GHz devices

- Bug 1957 - UdpSocketImpl is stuck after a Close()

- Bug 1968 - Missing supported 802.11n HT rates in the WifiPhy constructor

- Bug 1969 - Support short guard interval durations in 802.11n

- Bug 1970 - Missing NotifyAckTimeoutStartNow in MacLow::StartDataTxTimers

- Bug 1971 - 802.11n at 2.4 GHz should include a signal extension duration

- Bug 1972 - CommandLine duplicate argument handling: documentation updated.

- Bug 1983 - FlowMonitor returns containers copies instead of references.

- Bug 1986 - test result divergence for lte-frequency-reuse test

- Bug 1991 - PcapFileWrapper::CaptureSize attribute (snaplen) has no effect.

- Bug 1995 - avoid multiple definitions of PI

- Bug 1996 - RSRQ calculation: misleading variable names

- Bug 1997 - Fix PlotProbe() documentation and usage for GnuplotHelper and FileHelper

- Bug 2002 - Hardcoded include paths cause breakage

- Bug 2011 - Default Speed attribute in ConstantSpeedPropagationDelayModel

- Bug 2016 - Radvd do not consider the SendAdvert option and don't reply to RS

- Bug 2020 - Erroneous MCS field in 802.11n PCAP files

- Bug 2021 - Missing const qualifier in TopologyReader::Link::Attributes{Begin,End}()

- Bug 2026 - 802.11n Ness parameter badly set for data frames

- Bug 2027 - Calculation of HT training symbol duration does not accurately follow 802.11n standard

- Bug 2028 - remove unnecessary Time to double conversions in Wifi models

- Bug 2029 - new CQI generation approach fix

- Bug 2030 - provide default values for WifiTxVector

- Bug 2037 - HT capabilities may print bogus chars

- Bug 2038 - Stop method does not stop next wave in WaveformGenerator

- Bug 2042 - LTE a3-rsrp-handover-algorithm.cc:  error: overflow in implicit constant conversion

- Bug 2043 - print-introspected-doxygen crashes when some modules are disabled 

- Bug 2044 - Buffer::Iterator::ReadNtohU16() and ReadNtohU32() not implemented correctly

- Bug 2045 - Missing NS_OBJECT_ENSURE_REGISTERED in TcpTxBuffer and TcpRxBuffer

- Bug 2046 - set Block Ack timeout when SetStandard is called

- Bug 2047 - Ipv6EndPointDemux::Lookup may crash

- Bug 2049 - CQI feedback should always use the same calculation method

- Bug 2053 - In tcp-socket-base.cc, NotifyDataSent incorrectly called with retransmits

- Bug 2055 - TCP TxBuffer and RxBuffer traces don't work

- Nix-vector routing implementation now uses a lazy flush mechanism,

  which dramatically speeds up the creation of large topologies.

Known issues

------------

In general, known issues are tracked on the project tracker available

at http://www.nsnam.org/bugzilla/

Release 3.21

============

Availability

------------

This release is available from:

http://www.nsnam.org/release/ns-allinone-3.21.tar.bz2

Supported platforms

-------------------

- Fedora Core 20 (32/64 bit) with g++-4.8.2

- Ubuntu 14.04 (32/64 bit) with g++-4.8.2

- Ubuntu 12.04.4 (64 bit) with g++-4.6.3

- Ubuntu 10.04.4 LTS (64 bit) with g++-4.4.3

- CentOS/RHEL 6.5 (64-bit) with g++-4.4.7

- OS X Mavericks 10.9 with Xcode 5.1.1 and clang-503.0.40

- FreeBSD 9.2-RELEASE (64 bit) with clang-3.3

New user-visible features

-------------------------

- The LTE module now supports the transport of the S1-U, X2-U and X2-C

  interfaces over emulated links via the new helper class EmuEpcHelper.

- CommandLine can now provide a shorthand argument name for any

  Attribute.

- Implemented support for Frequency Reuse algorithms in LTE module, as the 

  outcome of GSoC 2014 project. 

  The project also includes several sub-features, such as:

   - implementation of Downlink Power Control

   - implementation of Uplink Power Control

   - new DL-CQI generation approach, which increases throughput if FR algorithms 

     are used

   - seven options of Frequency Reuse algorithms: LteFrNoOpAlgorithm, 

     LteFrHardAlgorithm, LteFrStrictAlgorithm, LteFrSoftAlgorithm, 

     LteFfrSoftAlgorithm, LteFfrEnhancedAlgorithm, LteFfrDistributedAlgorithm

   - updated RadioEnvironmentMapHelper. Now RadioEnvironmentMap can be generated 

     for Data or Control channel and for specified RbId, what is helpful when 

     using FR algorithms

- Added a CoDel queue model.  CoDel queues measure and control the queue

  traversal delay.  The ns-3 implementation is a port of the Linux 

  implementation.

- Added support for TCP timestamp and window scale options, and added

  ability to trace the TCP slow start threshold value.

- SimpleNetDevice and SimpleChannel (used for adding basic link effects

  for testing of higher-layer protocols) have been extended to support 

  the option of broadcast or PointToPoint link semantics.  The bandwidth

  and link delay can be constrained, and it uses an output queue.

- SimpleNetDevice and SimpleChannel can be installed in a node through 

  a new helper: SimpleNetDeviceHelper.

- Implemented new PacketSocketServer and PacketSocketClient applications.

  The primary use is in tests, to avoid using the ones from the 

  application module that also bring in a dependency on the internet module.

Bugs fixed

----------

- Bug 1673 - Config::Set/Connect does not search for attributes in parent class

- Bug 1762 - UE stuck in IDLE_CONNECTING because RRC CONN REQ is not transmitted

- Bug 1811 - basic traffic generator for network module 

- Bug 1824 - L4 protocol sockets should support BindToNetDevice over IPv6

- Bug 1831 - TcpSocket SlowStartThreshold is not a TraceSource

- Bug 1851 - WifiRadioEnergyModel energy consumption values are taken from a 802.15.4 chip

- Bug 1854 - std::out_of_range Problem

- Bug 1858 - wireless examples not correctly recording packet reception

- Bug 1860 - TCP needs the Window Scale option

- Bug 1893 - issue in DoSchedUlTriggerReq with harq

- Bug 1911 - AODV cannot work on nodes with more than one netdevice

- Bug 1921 - Icmpv6L4Protocol::ForgeEchoRequest returns a malformed packet

- Bug 1930 - Use of invalid reference in OLSR RemoveLinkTuple

- Bug 1932 - NdiscCache entry is not failsafe on double neighbor probing.

- Bug 1937 - FlowMonitor fails to track multiplexed packets

- Bug 1942 - refactoring of lte-sinr-chunk-processor -> lte-chunk-processor

- Bug 1943 - Waveform generator signal duration calc error

- Bug 1951 - AODV does not update nexthop for 1-hop nodes

- Bug 1955 - The IPv4 identification field should be unique per (source, destination, protocol) tuple

- Bug 1960 - Wrong information on index range, about Node::GetDevice

- Bug 1961 - planetlab-tap-creator "variable set but not used"

- Bug 1963 - AODV can tag the same packet twice (and raise an assert)

- Bug 1964 - Integer overflow on UniformRandomVariable::GetInteger()

- Bug 1967 - LL Multicast is not compressed in the right way in IPHC

- Bug 1981 - PyViz shell not compatible with ipython >= 0.11

Known issues

------------

- Bug 1770 - The mesh module will crash if used for g++ version >= 4.8.1

in optimized mode, on a 32-bit Linux machine.  Lowering the optimization

level to -O1 in this case can be used as a workaround.

Release 3.20

=============

Availability

------------

This release is available from:

http://www.nsnam.org/release/ns-allinone-3.20.tar.bz2

Supported platforms

-------------------

- Fedora Core 20 (32/64 bit) with g++-4.8.2

- Ubuntu 14.04 (32/64 bit) with g++-4.8.2

- Ubuntu 12.04.4 (64 bit) with g++-4.6.3

- Ubuntu 10.04.4 LTS (64 bit) with g++-4.4.3

- CentOS/RHEL 6.5 (64-bit) with g++-4.4.7

- OS X Mavericks 10.9 with Xcode 5.1.1 and clang-503.0.40

- FreeBSD 9.2-RELEASE (64 bit) with clang-3.3