<?xml version="1.0" encoding="utf-8" ?>
<!DOCTYPE chapter SYSTEM "chapter.dtd">

<chapter>
  <header>
    <copyright>
      <year>2007</year>
      <year>2016</year>
      <holder>Ericsson AB, All Rights Reserved</holder>
    </copyright>
    <legalnotice>
  Licensed under the Apache License, Version 2.0 (the "License");
  you may not use this file except in compliance with the License.
  You may obtain a copy of the License at
 
      http://www.apache.org/licenses/LICENSE-2.0

  Unless required by applicable law or agreed to in writing, software
  distributed under the License is distributed on an "AS IS" BASIS,
  WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
  See the License for the specific language governing permissions and
  limitations under the License.

  The Initial Developer of the Original Code is Ericsson AB.
    </legalnotice>

    <title>Percept Release Notes</title>
    <prepared>otp_appnotes</prepared>
    <docno>nil</docno>
    <date>nil</date>
    <rev>nil</rev>
    <file>notes.xml</file>
  </header>
  <p>This document describes the changes made to the Percept application.</p>

<section><title>Percept 0.9</title>

    <section><title>Fixed Bugs and Malfunctions</title>
      <list>
        <item>
          <p>
	    Remove deprecated <c>erlang:now/0</c> calls</p>
          <p>
	    Own Id: OTP-13422</p>
        </item>
      </list>
    </section>


    <section><title>Improvements and New Features</title>
      <list>
        <item>
          <p>
	    Improve line implementation</p>
          <p>
	    Add capabilities for line thickness and anti-aliasing.</p>
          <p>
	    Own Id: OTP-13598</p>
        </item>
      </list>
    </section>

</section>

<section><title>Percept 0.8.11</title>

    <section><title>Fixed Bugs and Malfunctions</title>
      <list>
        <item>
          <p>
	    Fix http server configuration</p>
          <p>
	    Own Id: OTP-12662</p>
        </item>
      </list>
    </section>

</section>

<section><title>Percept 0.8.10</title>

    <section><title>Fixed Bugs and Malfunctions</title>
      <list>
        <item>
          <p>
	    Make sure to install .hrl files when needed</p>
          <p>
	    Own Id: OTP-12197</p>
        </item>
      </list>
    </section>

</section>

<section><title>Percept 0.8.9</title>

    <section><title>Fixed Bugs and Malfunctions</title>
      <list>
        <item>
          <p>
	    Application upgrade (appup) files are corrected for the
	    following applications: </p>
          <p>
	    <c>asn1, common_test, compiler, crypto, debugger,
	    dialyzer, edoc, eldap, erl_docgen, et, eunit, gs, hipe,
	    inets, observer, odbc, os_mon, otp_mibs, parsetools,
	    percept, public_key, reltool, runtime_tools, ssh,
	    syntax_tools, test_server, tools, typer, webtool, wx,
	    xmerl</c></p>
          <p>
	    A new test utility for testing appup files is added to
	    test_server. This is now used by most applications in
	    OTP.</p>
          <p>
	    (Thanks to Tobias Schlager)</p>
          <p>
	    Own Id: OTP-11744</p>
        </item>
      </list>
    </section>

</section>

<section><title>Percept 0.8.8.2</title>

    <section><title>Improvements and New Features</title>
      <list>
        <item>
          <p>
	    The encoding of the <c>notes.xml</c> file has been
	    changed from latin1 to utf-8 to avoid future merge
	    problems.</p>
          <p>
	    Own Id: OTP-11310</p>
        </item>
      </list>
    </section>

</section>

<section><title>Percept 0.8.8.1</title>

    <section><title>Improvements and New Features</title>
      <list>
        <item>
	    <p> Postscript files no longer needed for the generation
	    of PDF files have been removed. </p>
          <p>
	    Own Id: OTP-11016</p>
        </item>
      </list>
    </section>

</section>

<section><title>Percept 0.8.8</title>

    <section><title>Improvements and New Features</title>
      <list>
        <item>
          <p>
	    Misc build updates</p>
          <p>
	    Own Id: OTP-10784</p>
        </item>
      </list>
    </section>

</section>

<section><title>Percept 0.8.7</title>

    <section><title>Fixed Bugs and Malfunctions</title>
      <list>
        <item>
          <p>
	    Add missing modules in app-file</p>
          <p>
	    Own Id: OTP-10439</p>
        </item>
      </list>
    </section>

</section>

<section><title>Percept 0.8.6.1</title>

    <section><title>Improvements and New Features</title>
      <list>
        <item>
          <p>
	    Miscellaneous documentation build updates</p>
          <p>
	    Own Id: OTP-9813</p>
        </item>
      </list>
    </section>

</section>

<section><title>Percept 0.8.6</title>

    <section><title>Fixed Bugs and Malfunctions</title>
      <list>
        <item>
          <p>
	    Fix message handling in select requests</p>
          <p>
	    percept_db used to send results in untagged messages, and
	    use a non selective receive to extract them. When percept
	    is used from the shell process, this can confuse other
	    messages with the actual result.</p>
          <p>
	    Add a tag to the message to be {result, Result}. Add
	    demonitor to avoid keeping DOWN message in the queue fix
	    one spec in do_start/0</p>
          <p>
	    (Thanks to Ahmed Omar)</p>
          <p>
	    Own Id: OTP-9490</p>
        </item>
      </list>
    </section>

</section>

<section><title>Percept 0.8.5</title>

    <section><title>Fixed Bugs and Malfunctions</title>
      <list>
        <item>
	    <p> Fixes a race condition found in percept_db start/1
	    function. (Thanks to Ahmed Omar) </p>
          <p>
	    Own Id: OTP-9012</p>
        </item>
      </list>
    </section>

</section>

<section><title>Percept 0.8.4</title>

    <section><title>Fixed Bugs and Malfunctions</title>
      <list>
        <item>
          <p>
	    Fix egd_render transparent to use float constants.</p>
          <p>
	    The render engine has float guards to enhance beam code
	    generation. However, the default case used integers which
	    caused the engine to crash. This is now fixed.</p>
          <p>
	    Own Id: OTP-8425</p>
        </item>
      </list>
    </section>


    <section><title>Improvements and New Features</title>
      <list>
        <item>
	    <p>The documentation is now possible to build in an open
	    source environment after a number of bugs are fixed and
	    some features are added in the documentation build
	    process. </p>
	    <p>- The arity calculation is updated.</p>
	    <p>- The module prefix used in the function names for
	    bif's are removed in the generated links so the links
	    will look like
	    "http://www.erlang.org/doc/man/erlang.html#append_element-2"
	    instead of
	    "http://www.erlang.org/doc/man/erlang.html#erlang:append_element-2".</p>
	    <p>- Enhanced the menu positioning in the html
	    documentation when a new page is loaded.</p>
	    <p>- A number of corrections in the generation of man
	    pages (thanks to Sergei Golovan)</p>
	    <p>- The legal notice is taken from the xml book file so
	    OTP's build process can be used for non OTP
	    applications.</p>
          <p>
	    Own Id: OTP-8343</p>
        </item>
        <item>
          <p>
	    Cleanups suggested by tidier and modernization of types
	    and specs.</p>
          <p>
	    Own Id: OTP-8455</p>
        </item>
      </list>
    </section>

</section>

<section><title>Percept 0.8.3</title>

    <section><title>Improvements and New Features</title>
      <list>
        <item>
          <p>
	    The documentation is now built with open source tools
	    (xsltproc and fop) that exists on most platforms. One
	    visible change is that the frames are removed.</p>
          <p>
	    Own Id: OTP-8201</p>
        </item>
      </list>
    </section>

</section>

<section><title>Percept 0.8.2</title>

    <section><title>Improvements and New Features</title>
      <list>
        <item>
          <p>
	    Extensions to <c>egd:color/1</c> for using atoms as color
	    definition in addition to rgb triplets.</p>
          <p>
	    Own Id: OTP-7975</p>
        </item>
      </list>
    </section>

</section>

<section><title>Percept 0.8.1</title>

    <section><title>Improvements and New Features</title>
      <list>
        <item>
	    <p><c>egd</c> now supports encapsulated postscript output
	    format.</p>
          <p>
	    Own Id: OTP-7923</p>
        </item>
      </list>
    </section>

</section>

    <section><title>Percept 0.8</title>

    <section><title>Fixed Bugs and Malfunctions</title>
      <list>
        <item>
	    <p>A problem with options list to percept causing some
	    options to be disregarded unintentionally. This has now
	    been fixed.</p> <p>An error in <c>percept_analyzer</c>
	    caused calculation of standard deviation to be incorrect.
	    This has now been corrected.</p>
          <p>
	    Own Id: OTP-7693</p>
        </item>
      </list>
    </section>


    <section><title>Improvements and New Features</title>
      <list>
        <item>
	    <p>Updated css for percept server for enhanced
	    viewing.</p> <p>Increased performance of egd render.</p>
	    <p>Several graph errors could occur when compacting data
	    to decrease graph rendering time causing incorrect
	    scalability numbers. These errors have now been
	    fixed.</p> <p>Increased viewing width for graphs. The
	    viewing width is now dependent on client screen
	    resolution.</p>
          <p>
	    Own Id: OTP-7696</p>
        </item>
      </list>
    </section>

</section>
<section><title>Percept 0.7.3</title>

    <section><title>Fixed Bugs and Malfunctions</title>
      <list>
        <item>
	    <p>External pids caused the webserver to crash. This has
	    now been fixed.</p>
          <p>
	    Own Id: OTP-7515 Aux Id: seq11004 </p>
        </item>
        <item>
	    <p>Fixed a timestamp problem where some events could be
	    sent out of order. Minor fixes to presentation of
	    data.</p>
          <p>
	    Own Id: OTP-7544 Aux Id: otp-7442 </p>
        </item>
      </list>
    </section>


    <section><title>Improvements and New Features</title>
      <list>
        <item>
	    <p>Performance enhancement for the egd render engine
	    (Thanks to Magnus Thoäng).</p>
          <p>
	    Own Id: OTP-7616</p>
        </item>
      </list>
    </section>

</section>

<section><title>Percept 0.7.2</title>

    <section><title>Fixed Bugs and Malfunctions</title>
      <list>
        <item>
	    <p>Calling <c>egd:destroy/1</c> did not properly remove
	    the process holding the image.</p>
	    <p>Synchronous calls done via the egd interface could
	    erroneous receive messages not intended for egd. Messages
	    are now tagged in such a way so this should not
	    occur.</p>
          <p>
	    Own Id: OTP-7336</p>
        </item>
      </list>
    </section>

</section>

<section><title>Percept 0.7.1</title>

    <section><title>Fixed Bugs and Malfunctions</title>
      <list>
        <item>
          <p>
	    Fixed out of bounds rendering problem in egd which could
	    cause the rendering process to crash.</p>
          <p>
	    Own Id: OTP-7215</p>
        </item>
      </list>
    </section>

</section>

<section><title>Percept 0.7</title>

    <section><title>Improvements and New Features</title>
      <list>
        <item>
            <p>Percept no longer depends on external c-libraries. The
            graphical rendering is now done via erlang code.</p>
          <p>
            Own Id: OTP-7162</p>
        </item>
      </list>
    </section>

</section>

<section><title>Percept 0.6.2</title>

    <section><title>Improvements and New Features</title>
      <list>
        <item>
          <p>
	    A new module, percept_profile, can now be used to collect
	    profiling data even if the percept application is not
	    installed. This should help profiling erlang application
	    on target machines without libgd installed.</p>
          <p>
	    Own Id: OTP-7126</p>
        </item>
      </list>
    </section>

</section>

<section>
  <title>Percept 0.5.0</title>
    <section><title>First Release</title>
      <list>
        <item>
          <p>
            First Release.
          </p>
          <p>Own Id: OTP-6783</p>
        </item>
      </list>
    </section>
  </section>
</chapter>

