<?xml version="1.0" encoding="latin1" ?>
<!DOCTYPE chapter SYSTEM "chapter.dtd">
<chapter>
<header>
<copyright>
<year>2000</year><year>2010</year>
<holder>Ericsson AB. All Rights Reserved.</holder>
</copyright>
<legalnotice>
The contents of this file are subject to the Erlang Public License,
Version 1.1, (the "License"); you may not use this file except in
compliance with the License. You should have received a copy of the
Erlang Public License along with this software. If not, it can be
retrieved online at http://www.erlang.org/.
Software distributed under the License is distributed on an "AS IS"
basis, WITHOUT WARRANTY OF ANY KIND, either express or implied. See
the License for the specific language governing rights and limitations
under the License.
</legalnotice>
<title>Megaco Release Notes</title>
<prepared>Lars Thorsén, Håkan Mattsson, Micael Karlberg</prepared>
<docno></docno>
<date></date>
<rev>%VSN%</rev>
<file>notes.xml</file>
</header>
<p>This document describes the changes made to the Megaco system
from version to version. The intention of this document is to
list all incompatibilities as well as all enhancements and
bugfixes for every release of Megaco. Each release of Megaco
thus constitutes one section in this document. The title of each
section is the version number of Megaco.</p>
<section>
<title>Megaco 3.13.0.2</title>
<p>Version 3.13.0.2 supports code replacement in runtime from/to
version 3.13, 3.12 and 3.11.3.</p>
<section>
<title>Improvements and new features</title>
<!--
<p>-</p>
-->
<list type="bulleted">
<item>
<p>Added a help target in the test Makefile to explain
the most useful make targets, used when testing the
application using the test-server provided with megaco.</p>
<p>Own Id: OTP-8362</p>
</item>
</list>
</section>
<section>
<title>Fixed bugs and malfunctions</title>
<!--
<p>-</p>
-->
<list type="bulleted">
<item>
<p>Fixing copyright problems.</p>
</item>
</list>
</section>
</section> <!-- 3.13.0.2 -->
<section>
<title>Megaco 3.13</title>
<p>Version 3.13 supports code replacement in runtime from/to
version 3.12 and 3.11.3.</p>
<section>
<title>Improvements and new features</title>
<!--
<p>-</p>
-->
<list type="bulleted">
<item>
<p>A minor optimization by using ets:update_element
instead of ets:insert for some table updates.</p>
<p>Own Id: OTP-8239</p>
<!-- <p>Aux Id: Seq 11332</p> -->
</item>
<item>
<p>The documentation is now built with open source tools
(<em>xsltproc</em> and <em>fop</em>) that exists on most
platforms. One visible change is that the frames are removed.</p>
<p>Own Id: OTP-8249</p>
</item>
</list>
</section>
<section>
<title>Fixed bugs and malfunctions</title>
<p>-</p>
<!--
<list type="bulleted">
<item>
<p>Replacing obsolete guard tests.</p>
<p>Own Id: OTP-8164</p>
<p>Aux Id: Seq 11332</p>
</item>
</list>
-->
</section>
<section>
<title>Incompatibilities</title>
<p>-</p>
<!--
<list type="bulleted">
<item>
<p>For those implementing their own codec's, the new megaco_encoder
behaviour will require three more functions. See above for more
info. </p>
<p>Own Id: OTP-7168</p>
<p>Aux Id: Seq 10867</p>
</item>
</list>
-->
</section>
</section> <!-- 3.13 -->
<section>
<title>Megaco 3.12</title>
<!--
<p>Version 3.12 supports code replacement in runtime from/to
version 3.11.3.</p>
-->
<section>
<title>Improvements and new features</title>
<!--
<p>-</p>
-->
<list type="bulleted">
<item>
<p>Improve handling of async transaction reply. </p>
<p>For asynchronous requests, issued using
<seealso marker="megaco#cast">megaco:cast/3</seealso>,
the reply will be delivered using the
<seealso marker="megaco_user#trans_reply">handle_trans_reply/4,5</seealso>
callback function. </p>
<p>If a receiver of a request, issued using
<seealso marker="megaco#cast">megaco:cast/3</seealso>,
does not reply in time, megaco re-sends the request.
If the receiver of the request sends the reply at the same
time as megaco re-sends, it may also send a reply to the
resent request (thinking the first reply got lost). These
two replies may arrive more or less at the same time,
causing confusion. </p>
<p>In order to improve this situation, a number of
improvements have been done: </p>
<list type="bulleted">
<item>
<p>When the first reply arrives, a timer, request-keep-alive,
is started. This timer is used to decide when to stop
accepting replies as legitimate. </p>
<p>The timeout time for the timer is specified by the
config option <em>request_keep_alive_timout</em>,
which can be set per
<seealso marker="megaco#ui_request_keep_alive_timeout">user</seealso>
or per
<seealso marker="megaco#ci_request_keep_alive_timeout">connection</seealso>. </p>
</item>
<item>
<p>We also keep track of how many replies has been received
(we do this as long as the request-keep-alive timer is
running). </p>
</item>
<item>
<p>Each reply that arrives while the request-keep-alive timer
is running (including the first) will be delivered using the
<seealso marker="megaco_user#trans_reply">handle_trans_reply/4,5</seealso>
callback function, but with the UserReply augmented to
include a serial number indicating which reply number this
is.
The <em>first</em> reply to arrive,
will be numbered <em>one (1)</em>. </p>
</item>
<item>
<p>Replies arriving after the timer has expired will be delivered
in the same way as before, using the
<seealso marker="megaco_user#unexpected_trans">handle_unexpected_trans/3,4</seealso>
callback function. </p>
</item>
<item>
<p>Note that if the timer was <em>not</em> configured,
megaco will act exactly as before! </p>
</item>
</list>
<p>Own Id: OTP-8183</p>
<p>Aux Id: Seq 11393</p>
</item>
</list>
</section>
<section>
<title>Fixed bugs and malfunctions</title>
<!--
<p>-</p>
-->
<list type="bulleted">
<item>
<p>If the megaco app received a transaction reply, for a request
issued using the
<seealso marker="megaco#call">call/3</seealso> function, from
the wrong remote entity (wrong MId)), megaco would still deliver
the reply (<seealso marker="megaco#call">call/3</seealso>
returnes) as if from the correct remote entity (right MId). </p>
<p>This has been changed so that the function now returns with
an error reason. </p>
<p>See <seealso marker="megaco#call">call/3</seealso> for more
info. </p>
<p>*** POTENTIAL INCOMPATIBILITY ***</p>
<p>Own Id: OTP-8212</p>
<p>Aux Id: Seq 11305</p>
</item>
</list>
</section>
</section> <!-- 3.12 -->
<section>
<title>Megaco 3.11.3</title>
<!--
<p>Version 3.11.3 supports code replacement in runtime from/to
version 3.11.2, 3.11.1 and 3.11.</p>
-->
<section>
<title>Improvements and new features</title>
<!--
<p>-</p>
-->
<list type="bulleted">
<item>
<p>Replacing obsolete guard tests.</p>
<p>Own Id: OTP-8164</p>
<!-- <p>Aux Id: Seq 11332</p> -->
</item>
<item>
<p>Added the config option
<seealso marker="megaco#ui_call_proxy_gc_timeout">call_proxy_gc_timeout</seealso>
to be able to control the way unexpected replies (when requests issued
via calls to <seealso marker="megaco#call">call/3</seealso>)
are handled. </p>
<p>See
<seealso marker="megaco#user_info">user_info/2</seealso>,
<seealso marker="megaco#conn_info">conn_info/2</seealso> and
<seealso marker="megaco#call">call/3</seealso> for more info. </p>
<p>Own Id: OTP-8167</p>
<p>Aux Id: Seq 11393</p>
</item>
<item>
<p>Make flex scanner c89 compiler compliant.</p>
<p>Akira Kitada</p>
<p>Own Id: OTP-8191</p>
<!-- <p>Aux Id: Seq 11332</p> -->
</item>
</list>
</section>
<section>
<title>Fixed bugs and malfunctions</title>
<p>-</p>
<!--
<list type="bulleted">
<item>
<p>Replacing obsolete guard tests.</p>
<p>Own Id: OTP-8164</p>
<p>Aux Id: Seq 11332</p>
</item>
</list>
-->
</section>
<section>
<title>Incompatibilities</title>
<p>-</p>
<!--
<list type="bulleted">
<item>
<p>For those implementing their own codec's, the new megaco_encoder
behaviour will require three more functions. See above for more
info. </p>
<p>Own Id: OTP-7168</p>
<p>Aux Id: Seq 10867</p>
</item>
</list>
-->
</section>
</section> <!-- 3.11.3 -->
<section>
<title>Megaco 3.11.2</title>
<p>Version 3.11.2 supports code replacement in runtime from/to
version 3.11.1 and 3.11.</p>
<section>
<title>Improvements and new features</title>
<!--
<p>-</p>
-->
<list type="bulleted">
<item>
<p>Megaco was unnecessarily strict when parsing the SDP
attribute <c>maxptime</c> (leading or trailing spaces
cased the value parse to fail). </p>
<p>This has been improved so that leading and trailing
spaces are stripped before parsing the value.
The same has been done for the attribute <c>ptime</c>.</p>
<p>Own Id: OTP-8123</p>
<p>Aux Id: Seq 11364</p>
</item>
</list>
</section>
<section>
<title>Fixed bugs and malfunctions</title>
<p>-</p>
<!--
<list type="bulleted">
<item>
<p>[text] The <em>unquoted</em> string BOTH was interpreted as the
<c>'BothToken'</c> token. This was a version 3 (prev3a, prev3b,
prev3c and v3) only. </p>
<p>Own Id: OTP-8114</p>
<p>Aux Id: Seq 11353</p>
</item>
<item>
<p>The reply proxy could crash if the timeout time calculation
results in a negative number. This will result in a function
clause with resulting error report.</p>
<p>Own Id: OTP-8081</p>
<p>Aux Id: Seq 11332</p>
</item>
</list>
-->
</section>
<section>
<title>Incompatibilities</title>
<p>-</p>
<!--
<list type="bulleted">
<item>
<p>For those implementing their own codec's, the new megaco_encoder
behaviour will require three more functions. See above for more
info. </p>
<p>Own Id: OTP-7168</p>
<p>Aux Id: Seq 10867</p>
</item>
</list>
-->
</section>
</section> <!-- 3.11.2 -->
<section>
<title>Megaco 3.11.1</title>
<p>Version 3.11.1 supports code replacement in runtime from/to
version 3.11.</p>
<section>
<title>Improvements and new features</title>
<p>-</p>
<!--
<list type="bulleted">
<item>
<p>In order to better utilize multi-core procs, the
<c>flex</c> (text) scanner has been improved. </p>
<p>The <c>flex</c> (text) scanner has been made reentrant,
<em>if</em> the flex utility supports this. Note that the version
of <c>flex</c> supplied with some OS/distros (Solaris 10,
FreeBSD and OpenBSD to mention a few) may not support this, in which
case the flex scanner will be non-reentrant, just as before. </p>
<p>Own Id: OTP-7302</p>
</item>
</list>
-->
</section>
<section>
<title>Fixed bugs and malfunctions</title>
<!--
<p>-</p>
-->
<list type="bulleted">
<item>
<p>[text] The <em>unquoted</em> string BOTH was interpreted as the
<c>'BothToken'</c> token. This was a version 3 (prev3a, prev3b,
prev3c and v3) only. </p>
<p>Own Id: OTP-8114</p>
<p>Aux Id: Seq 11353</p>
</item>
<item>
<p>The reply proxy could crash if the timeout time calculation
results in a negative number. This will result in a function
clause with resulting error report.</p>
<p>Own Id: OTP-8081</p>
<p>Aux Id: Seq 11332</p>
</item>
</list>
</section>
<section>
<title>Incompatibilities</title>
<p>-</p>
<!--
<list type="bulleted">
<item>
<p>For those implementing their own codec's, the new megaco_encoder
behaviour will require three more functions. See above for more
info. </p>
<p>Own Id: OTP-7168</p>
<p>Aux Id: Seq 10867</p>
</item>
</list>
-->
</section>
</section> <!-- 3.11.1 -->
<section>
<title>Megaco 3.11</title>
<!--
<p>Version 3.11 supports code replacement in runtime from/to
version 3.10.1 and 3.10.0.1.</p>
-->
<section>
<title>Improvements and new features</title>
<!--
<p>-</p>
-->
<list type="bulleted">
<item>
<p>In order to better utilize multi-core procs, the
<c>flex</c> (text) scanner has been improved. </p>
<p>The <c>flex</c> (text) scanner has been made reentrant,
<em>if</em> the flex utility supports this. Note that the version
of <c>flex</c> supplied with some OS/distros (Solaris 10,
FreeBSD and OpenBSD to mention a few) may not support this, in which
case the flex scanner will be non-reentrant, just as before. </p>
<p>Own Id: OTP-7302</p>
</item>
</list>
</section>
<section>
<title>Fixed bugs and malfunctions</title>
<p>-</p>
<!--
<list type="bulleted">
<item>
<p>The (plain) text scanner could incorrectly identify
character strings (any 17 char long string with the
char t in the middle) as a TimeStampToken.</p>
<p>Own Id: OTP-7249</p>
<p>Aux Id: Seq 10917</p>
</item>
</list>
-->
</section>
<section>
<title>Incompatibilities</title>
<p>-</p>
<!--
<list type="bulleted">
<item>
<p>For those implementing their own codec's, the new megaco_encoder
behaviour will require three more functions. See above for more
info. </p>
<p>Own Id: OTP-7168</p>
<p>Aux Id: Seq 10867</p>
</item>
</list>
-->
</section>
</section> <!-- 3.11 -->
<section>
<title>Megaco 3.10.1</title>
<p>Version 3.10.1 supports code replacement in runtime from/to
version 3.10.0.1, 3.10 and 3.9.4.</p>
<section>
<title>Improvements and new features</title>
<p>-</p>
<!--
<list type="bulleted">
<item>
<p>Updated file headers.</p>
<p>Own Id: OTP-7851</p>
<p>Aux Id: Seq 11140</p>
</item>
</list>
-->
</section>
<section>
<title>Fixed bugs and malfunctions</title>
<!--
<p>-</p>
-->
<list type="bulleted">
<item>
<p>Unexpected <seealso marker="megaco_user#unexpected_trans">handle_unexpected_reply</seealso> callbacks. </p>
<p>The <seealso marker="megaco_user">megaco_user</seealso> callback function
<seealso marker="megaco_user#unexpected_trans">handle_unexpected_reply</seealso>
could during high load be called with unexpected values for the Trans
argument, such as an <c>TransactionReply</c> where <c>transactionResult</c>
had the value <c>{error, timeout}</c>. This was a result of a raise condition
and has now been fixed. </p>
<p>Own Id: OTP-7926</p>
<p>Aux Id: Seq 11255</p>
</item>
<item>
<p>[text] PropertyParm values cannot be quoted. </p>
<p>It was not possible to encode a PropertyParm value as a quoted string
(unless it *had* to (has at least one RestChar)). The megaco text codec's
now also accepts quoted strings as PropertyParm values. </p>
<p>Own Id: OTP-7936</p>
<p>Aux Id: Seq 11258</p>
</item>
</list>
</section>
<section>
<title>Incompatibilities</title>
<p>-</p>
<!--
<list type="bulleted">
<item>
<p>If the transport module calls the
<seealso marker="megaco#process_received_message">process_received_message/5</seealso>
or
<seealso marker="megaco#receive_message">receive_message/5</seealso>
function(s) for the initial message, then the
<seealso marker="megaco_user#connect">handle_connect/3</seealso>
function will now be called and not the
<seealso marker="megaco_user#connect">handle_connect/2</seealso>
function. </p>
<p>Own Id: OTP-7713</p>
<p>Aux Id: Seq 11140</p>
</item>
</list>
-->
</section>
</section> <!-- 3.10.1 -->
<section>
<title>Megaco 3.10.0.1</title>
<p>Version 3.10.0.1 supports code replacement in runtime from/to
version 3.10 and 3.9.4 except
when using any of the drivers (flex for text or asn1 for binary).</p>
<section>
<title>Improvements and new features</title>
<!--
<p>-</p>
-->
<list type="bulleted">
<item>
<p>Updated file headers.</p>
<p>Own Id: OTP-7851</p>
<!-- <p>Aux Id: Seq 11140</p> -->
</item>
</list>
</section>
<section>
<title>Fixed bugs and malfunctions</title>
<p>-</p>
<!--
<list type="bulleted">
<item>
<p>Memory leak in the flex scanner. There was a memory
leak in the flex scanner function handling
Property Parameters. </p>
<p>Own Id: OTP-7700</p>
<p>Aux Id: Seq 11126</p>
</item>
</list>
-->
</section>
<section>
<title>Incompatibilities</title>
<p>-</p>
<!--
<list type="bulleted">
<item>
<p>If the transport module calls the
<seealso marker="megaco#process_received_message">process_received_message/5</seealso>
or
<seealso marker="megaco#receive_message">receive_message/5</seealso>
function(s) for the initial message, then the
<seealso marker="megaco_user#connect">handle_connect/3</seealso>
function will now be called and not the
<seealso marker="megaco_user#connect">handle_connect/2</seealso>
function. </p>
<p>Own Id: OTP-7713</p>
<p>Aux Id: Seq 11140</p>
</item>
</list>
-->
</section>
</section> <!-- 3.10.0.1 -->
<section>
<title>Megaco 3.10</title>
<p>Version 3.10 supports code replacement in runtime from/to
version 3.9.4, 3.9.3, 3.9.2, 3.9.1.1, 3.9.1, 3.9, 3.8.2, 3.8.1 and 3.8 except
when using any of the drivers (flex for text or asn1 for binary).</p>
<section>
<title>Improvements and new features</title>
<!--
<p>-</p>
-->
<list type="bulleted">
<item>
<p>Added new API function
<seealso marker="megaco#connect">megaco:connect/5</seealso> and
the corresponding new <c>megaco_user</c> callback function
<seealso marker="megaco_user#connect">handle_connect/3</seealso>.
The purpose of this is to be able to pass information to the
<seealso marker="megaco_user#connect">handle_connect/3</seealso>
function by calling the
<seealso marker="megaco#connect">megaco:connect/5</seealso>
function. </p>
<p>Own Id: OTP-7713</p>
<p>Aux Id: Seq 11140</p>
</item>
<item>
<p>Update file headers with new copyright notice. </p>
<p>Own Id: OTP-7743</p>
</item>
</list>
</section>
<section>
<title>Fixed bugs and malfunctions</title>
<p>-</p>
<!--
<list type="bulleted">
<item>
<p>Memory leak in the flex scanner. There was a memory
leak in the flex scanner function handling
Property Parameters. </p>
<p>Own Id: OTP-7700</p>
<p>Aux Id: Seq 11126</p>
</item>
</list>
-->
</section>
<section>
<title>Incompatibilities</title>
<!--
<p>-</p>
-->
<list type="bulleted">
<item>
<p>If the transport module calls the
<seealso marker="megaco#process_received_message">process_received_message/5</seealso>
or
<seealso marker="megaco#receive_message">receive_message/5</seealso>
function(s) for the initial message, then the
<seealso marker="megaco_user#connect">handle_connect/3</seealso>
function will now be called and not the
<seealso marker="megaco_user#connect">handle_connect/2</seealso>
function. </p>
<p>Own Id: OTP-7713</p>
<p>Aux Id: Seq 11140</p>
</item>
</list>
</section>
</section> <!-- 3.10 -->
<section>
<title>Megaco 3.9.4</title>
<p>Version 3.9.4 supports code replacement in runtime from/to
version 3.9.3, 3.9.2, 3.9.1.1, 3.9.1, 3.9, 3.8.2, 3.8.1 and 3.8 except
when using any of the drivers (flex for text or asn1 for binary).</p>
<section>
<title>Improvements and new features</title>
<p>-</p>
<!--
<list type="bulleted">
<item>
<p>Miscellaneous dialyzer related and test case cleanup. </p>
<p>Own Id: OTP-7614</p>
</item>
</list>
-->
</section>
<section>
<title>Fixed bugs and malfunctions</title>
<!--
<p>-</p>
-->
<list type="bulleted">
<item>
<p>Segmenting a reply failed (with a badmatch) if the message
did not actually need to be segmented (e.g. was within the
size limit,
<seealso marker="megaco#ui_max_pdu_size">max_pdu_size</seealso>). </p>
<p>Own Id: OTP-7733</p>
<p>Aux Id: Seq 11168</p>
</item>
<item>
<p>Improve the error handling of megaco_tcp for received
messages. </p>
<p>Own Id: OTP-7728</p>
</item>
</list>
</section>
<section>
<title>Incompatibilities</title>
<p>-</p>
<!--
<list type="bulleted">
<item>
<p>For those implementing their own codec's, the new megaco_encoder
behaviour will require three more functions. See above for more
info. </p>
<p>Own Id: OTP-7168</p>
<p>Aux Id: Seq 10867</p>
</item>
</list>
-->
</section>
</section> <!-- 3.9.3.1 -->
<section>
<title>Megaco 3.9.3</title>
<p>Version 3.9.3 supports code replacement in runtime from/to
version 3.9.2, 3.9.1.1, 3.9.1, 3.9, 3.8.2, 3.8.1 and 3.8 except
when using any of the drivers (flex for text or asn1 for binary).</p>
<section>
<title>Improvements and new features</title>
<p>-</p>
<!--
<list type="bulleted">
<item>
<p>Miscellaneous dialyzer related and test case cleanup. </p>
<p>Own Id: OTP-7614</p>
</item>
</list>
-->
</section>
<section>
<title>Fixed bugs and malfunctions</title>
<!--
<p>-</p>
-->
<list type="bulleted">
<item>
<p>Memory leak in the flex scanner. There was a memory
leak in the flex scanner function handling
Property Parameters. </p>
<p>Own Id: OTP-7700</p>
<p>Aux Id: Seq 11126</p>
</item>
</list>
</section>
<section>
<title>Incompatibilities</title>
<p>-</p>
<!--
<list type="bulleted">
<item>
<p>For those implementing their own codec's, the new megaco_encoder
behaviour will require three more functions. See above for more
info. </p>
<p>Own Id: OTP-7168</p>
<p>Aux Id: Seq 10867</p>
</item>
</list>
-->
</section>
</section> <!-- 3.9.3 -->
<section>
<title>Megaco 3.9.2</title>
<p>Version 3.9.2 supports code replacement in runtime from/to
version 3.9.1.1, 3.9.1, 3.9, 3.8.2, 3.8.1 and 3.8 except
when using any of the drivers (flex for text or asn1 for binary).</p>
<section>
<title>Improvements and new features</title>
<p>-</p>
<!--
<list type="bulleted">
<item>
<p>Miscellaneous dialyzer related and test case cleanup. </p>
<p>Own Id: OTP-7614</p>
</item>
</list>
-->
</section>
<section>
<title>Fixed bugs and malfunctions</title>
<!--
<p>-</p>
-->
<list type="bulleted">
<item>
<p>The text encoders (v1, v2, v3, ...) all failed to
properly encode the DigitMapDescriptor. </p>
<p>Own Id: OTP-7671</p>
<p>Aux Id: Seq 11113</p>
</item>
<item>
<p>The mini decoder some time incorrectly identifies
plain text as tokens. </p>
<p>Own Id: OTP-7672</p>
<p>Aux Id: Seq 11103</p>
</item>
</list>
</section>
<section>
<title>Incompatibilities</title>
<p>-</p>
<!--
<list type="bulleted">
<item>
<p>For those implementing their own codec's, the new megaco_encoder
behaviour will require three more functions. See above for more
info. </p>
<p>Own Id: OTP-7168</p>
<p>Aux Id: Seq 10867</p>
</item>
</list>
-->
</section>
</section> <!-- 3.9.2 -->
<section>
<title>Megaco 3.9.1.1</title>
<p>Version 3.9.1.1 supports code replacement in runtime from/to
version 3.9.1, 3.9, 3.8.2, 3.8.1 and 3.8 except
when using any of the drivers (flex for text or asn1 for binary).</p>
<section>
<title>Improvements and new features</title>
<!--
<p>-</p>
-->
<list type="bulleted">
<item>
<p>Miscellaneous dialyzer related and test case cleanup. </p>
<p>Own Id: OTP-7614</p>
</item>
</list>
</section>
<section>
<title>Fixed bugs and malfunctions</title>
<p>-</p>
<!--
<list type="bulleted">
<item>
<p>[text] The flex scanner did not allow an empty quotedString
in propertyParm. </p>
<p>Own Id: OTP-7573</p>
<p>Aux Id: Seq 11062</p>
</item>
<item>
<p>[text] Unable to decode a version 2 message with a
topologyTriple containing an (optional) eventStream. </p>
<p>Own Id: OTP-7576</p>
<p>Aux Id: Seq 11066</p>
</item>
</list>
-->
</section>
<section>
<title>Incompatibilities</title>
<p>-</p>
<!--
<list type="bulleted">
<item>
<p>For those implementing their own codec's, the new megaco_encoder
behaviour will require three more functions. See above for more
info. </p>
<p>Own Id: OTP-7168</p>
<p>Aux Id: Seq 10867</p>
</item>
</list>
-->
</section>
</section> <!-- 3.9.1.1 -->
<section>
<title>Megaco 3.9.1</title>
<p>Version 3.9.1 supports code replacement in runtime from/to
version 3.9, 3.8.2, 3.8.1 and 3.8 except
when using any of the drivers (flex for text or asn1 for binary).</p>
<section>
<title>Improvements and new features</title>
<p>-</p>
<!--
<list type="bulleted">
<item>
<p>[text] The text codec(s) has been optimized. The parsing of
"property parameters" has been moved to the scanner(s). Which means
that when decoding messages containing property parameters, using
the flex scanner, decode time(s) will be reduced. The reduction
depends on the message, but can be as large as 25%. </p>
<p>Own Id: OTP-7431</p>
</item>
</list>
-->
</section>
<section>
<title>Fixed bugs and malfunctions</title>
<!--
<p>-</p>
-->
<list type="bulleted">
<item>
<p>[text] The flex scanner did not allow an empty quotedString
in propertyParm. </p>
<p>Own Id: OTP-7573</p>
<p>Aux Id: Seq 11062</p>
</item>
<item>
<p>[text] Unable to decode a version 2 message with a
topologyTriple containing an (optional) eventStream. </p>
<p>Own Id: OTP-7576</p>
<p>Aux Id: Seq 11066</p>
</item>
</list>
</section>
<section>
<title>Incompatibilities</title>
<p>-</p>
<!--
<list type="bulleted">
<item>
<p>For those implementing their own codec's, the new megaco_encoder
behaviour will require three more functions. See above for more
info. </p>
<p>Own Id: OTP-7168</p>
<p>Aux Id: Seq 10867</p>
</item>
</list>
-->
</section>
</section> <!-- 3.9.1 -->
<section>
<title>Megaco 3.9</title>
<p>Version 3.9 supports code replacement in runtime from/to
version 3.8.2, 3.8.1 and 3.8 except
when using any of the drivers (flex for text or asn1 for binary).</p>
<section>
<title>Improvements and new features</title>
<!--
<p>-</p>
-->
<list type="bulleted">
<item>
<p>[text] The text codec(s) has been optimized. The parsing of
"property parameters" has been moved to the scanner(s). Which means
that when decoding messages containing property parameters, using
the flex scanner, decode time(s) will be reduced. The reduction
depends on the message, but can be as large as 25%. </p>
<p>Own Id: OTP-7431</p>
</item>
</list>
</section>
<section>
<title>Fixed bugs and malfunctions</title>
<p>-</p>
<!--
<list type="bulleted">
<item>
<p>If a TransactionRequest arrives while a user is
connecting (is in the callback function
handle_connect as a result of a megaco:connect call),
megaco responds with a pending message and then drops
the request.</p>
<p>These messages will now be silently dropped, forcing the
other side to resend. </p>
<p>Own Id: OTP-7192</p>
<p>Aux Id: Seq 10884</p>
</item>
</list>
-->
</section>
<section>
<title>Incompatibilities</title>
<p>-</p>
<!--
<list type="bulleted">
<item>
<p>For those implementing their own codec's, the new megaco_encoder
behaviour will require three more functions. See above for more
info. </p>
<p>Own Id: OTP-7168</p>
<p>Aux Id: Seq 10867</p>
</item>
</list>
-->
</section>
</section> <!-- 3.9 -->
<!-- section>
<title>Release notes history</title>
<p>For information about older versions see
<url href="part_notes_history_frame.html">release notes history</url>.</p
</section> -->
</chapter>
