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<p class='vspace'></p><h2>Changes</h2>
<p>This page lists major changes to the Arduino core, libraries, and environment. For details, see the <a class='wikilink' href='http://arduino.cc/en/Main/ReleaseNotes'>release notes</a>.
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<p class='vspace'></p><h3>Changes in Arduino 0017</h3>
<ul><li><strong>Environment</strong>: The code base for the Arduino development environment was largely re-written to bring it back into sync with Processing (1.0.3). The main differences include support for multiple sketch windows open simultaneously and a dedicated window for the serial monitor.
<p class='vspace'></p></li><li><strong>Icons</strong>: The icons and about images were updated.
<p class='vspace'></p></li><li><strong>Arduino.app</strong>: The Mac OS X version of Arduino is now a .app file packaged in a .dmg.
<p class='vspace'></p></li><li><strong>Libraries</strong>: Support was added for third-party libraries in the <em>SKETCHBOOK</em>/libraries directory. This allows user-installed libraries to persist across upgrades of the Arduino software.
<p class='vspace'></p></li><li><strong>Servo</strong>: The servo library was rewritten to allow support for up to 12 servos (on any pins) and up to 48 on the Mega.
<p class='vspace'></p></li><li><strong><span class='wikiword'>LiquidCrystal</span></strong>: The begin(), cursor(), noCursor(), blink(), noBlink(), display(), noDisplay(), scrollDisplayLeft(), scrollDisplayRight(), autoscroll(), noAutoscroll(), leftToRight(), rightToLeft(), and createChar() functions were added.
</li></ul><p class='vspace'></p><h3>Changes in Arduino 0016</h3>
<ul><li>New functions for writing a string, write(str), or buffer, write(buf, len), were added to the Print, Serial, and Ethernet library Client and Server classes.
</li></ul><p class='vspace'></p><h3>Changes in Arduino 0015</h3>
<ul><li>Support for the Arduino Mega.
</li></ul><p class='vspace'></p><h3>Changes in Arduino 0013</h3>
<ul><li>Support for printing floats was added to the Print, Serial, and Ethernet library Client and Server classes.
<p class='vspace'></p></li><li>The word type and word(), bitRead(), bitWrite(), bitSet(), bitClear(), bit(), lowByte(), and highByte() functions were added.
</li></ul><p class='vspace'></p><h3>Changes in Arduino 0012</h3>
<ul><li>Added the Firmata library, which provides a standard protocol for serial communication.
<p class='vspace'></p></li><li>Added Ethernet library.
<p class='vspace'></p></li><li>Added Servo library.
<p class='vspace'></p></li><li>Added <span class='wikiword'>LiquidCrystal</span> library.
</li></ul><p class='vspace'></p><p><a class='wikilink' href='index.html'>Reference Home</a>
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<p class='vspace'></p><p><em>Corrections, suggestions, and new documentation should be posted to the <a class='urllink' href='http://www.arduino.cc/cgi-bin/yabb2/YaBB.pl?board=swbugs' rel='nofollow'>Forum</a>.</em>
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<p class='vspace'></p><p>The text of the Arduino reference is licensed under a
<a class='urllink' href='http://creativecommons.org/licenses/by-sa/3.0/' rel='nofollow'>Creative Commons Attribution-ShareAlike 3.0 License</a>. Code samples in the reference are released into the public domain.
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