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	<description>Sito personale di Silvio Zennaro, Dottore Magistrale in Informatica</description>
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		<title>CSS 2.1 e CSS 3 Cheat Sheets</title>
		<link>http://www.silzenna.net/2010/05/14/css-2-1-e-css-3-cheat-sheets/</link>
		<comments>http://www.silzenna.net/2010/05/14/css-2-1-e-css-3-cheat-sheets/#comments</comments>
		<pubDate>Fri, 14 May 2010 15:48:41 +0000</pubDate>
		<dc:creator>silzenna</dc:creator>
				<category><![CDATA[Download]]></category>
		<category><![CDATA[News]]></category>
		<category><![CDATA[Snippets]]></category>
		<category><![CDATA[Tips]]></category>
		<category><![CDATA[Web Development]]></category>
		<category><![CDATA[cheat sheets]]></category>
		<category><![CDATA[css]]></category>
		<category><![CDATA[css 2]]></category>
		<category><![CDATA[css 3]]></category>
		<category><![CDATA[specifiche css 3]]></category>

		<guid isPermaLink="false">http://www.silzenna.net/?p=464</guid>
		<description><![CDATA[Pubblicati nella sezione Download due nuovi Cheat Sheet relativi al linguaggio e alle specifiche Cascade Style Sheet - CSS 2.1 e 3.]]></description>
			<content:encoded><![CDATA[<p style="text-align: left;"><a href="http://www.silzenna.net/wp-content/uploads/2010/05/css.jpg"><img class="size-full wp-image-465  aligncenter" title="css" src="http://www.silzenna.net/wp-content/uploads/2010/05/css.jpg" alt="" width="420" height="261" /></a>Pubblicati nella sezione <a title="Sezione Download" href="/downloads?phpMyAdmin=RZ8nrM4%2CSmA06b-70UviYU2l8Q6" target="_self">Download</a> due nuovi Cheat Sheet relativi al linguaggio e alle specifiche Cascade Style Sheet &#8211; CSS 2.1 e 3.<br />
Fondamentale soprattutto quest&#8217;ultimo (il primo può servire senza dubbio più ai neofiti dello sviluppo web) per acquisire immediata dimestichezza con le nuove specifiche della versione 3.<span id="more-464"></span>Qui di seguito i link ai due file pdf da scaricare e stampare:</p>
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		<title>BetterSoftware 2010</title>
		<link>http://www.silzenna.net/2010/04/27/bettersoftware-2010/</link>
		<comments>http://www.silzenna.net/2010/04/27/bettersoftware-2010/#comments</comments>
		<pubDate>Tue, 27 Apr 2010 13:54:15 +0000</pubDate>
		<dc:creator>silzenna</dc:creator>
				<category><![CDATA[News]]></category>
		<category><![CDATA[Siloos]]></category>

		<guid isPermaLink="false">http://www.silzenna.net/?p=435</guid>
		<description><![CDATA[Better Software è la prima conferenza Italiana dedicata allo sviluppo di software e si terrà a Firenze il 5 e 6 maggio 2010]]></description>
			<content:encoded><![CDATA[<div class="clear"></div>
<p style="text-align: left;"><a href="http://www.silzenna.net/wp-content/uploads/2010/04/better-software-logo-big1.png"><img class="aligncenter size-full  wp-image-447" style="margin-top: 10px; margin-bottom: 10px;" title="better-software-logo-big" src="http://www.silzenna.net/wp-content/uploads/2010/04/better-software-logo-big1.png" alt="" width="480" height="50" /></a></p>
<p style="text-align: left;">&#8220;Better Software è la prima conferenza Italiana dedicata allo  sviluppo di software e rivolta a imprenditori e manager del settore.  Better Software è un&#8217;opportunità per intrecciare relazioni durature con  nuovi clienti e partner.&#8221;</p>
<p>&#8220;L&#8217;evento è rivolto ad una varietà eterogenea di argomenti legati  alla produzione di software: dalla raccolta delle specifiche al design,  dal project management allo sviluppo, dal licensing al marketing.&#8221;</p>
<p>&#8220;La conferenza porta sul palco i più importanti esperti su  progettazione agile, open source, web2.0 e tutte le discipline che  contribuiscono alla costruzione di un prodotto stabile, usabile e  vendibile.&#8221;</p>
<p>BetterSoftware si terrà a Firenze il 5 e 6 maggio 2010. Ecco la <a title="Programma della conferenza" href="http://www.bettersoftware.it/2010/programma" onclick="pageTracker._trackPageview('/outgoing/www.bettersoftware.it/2010/programma?referer=');">lista dei talk</a>.</p>


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		<title>Regole di base sulle Performance di Joomla!</title>
		<link>http://www.silzenna.net/2010/02/25/regole-di-base-sulle-performance-di-joomla/</link>
		<comments>http://www.silzenna.net/2010/02/25/regole-di-base-sulle-performance-di-joomla/#comments</comments>
		<pubDate>Thu, 25 Feb 2010 15:48:31 +0000</pubDate>
		<dc:creator>silzenna</dc:creator>
				<category><![CDATA[News]]></category>
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		<category><![CDATA[prestazioni joomla]]></category>

		<guid isPermaLink="false">http://www.silzenna.net/?p=421</guid>
		<description><![CDATA[Riprendo qui di seguito alcune considerazioni e utili consigli divulgati ieri da Brad Baker su come incrementare le prestazioni del proprio sito Joomla! senza l'utilizzo di alcune estensioni. Sono pertanto tutti accorgimenti che possono essere adottati a partire dalla versione base del CMS più popolare al mondo.]]></description>
			<content:encoded><![CDATA[<div id="attachment_253" class="wp-caption alignright" style="width: 245px"><a href="http://www.silzenna.net/wp-content/uploads/2009/05/logo_joomla.png"><img class="size-full wp-image-253" title="logo_joomla" src="http://www.silzenna.net/wp-content/uploads/2009/05/logo_joomla.png" alt="" width="235" height="46" /></a><p class="wp-caption-text">Logo di Joomla!</p></div>
<p>Riprendo qui di seguito alcune considerazioni e utili consigli divulgati ieri da Brad Baker su come incrementare le prestazioni del proprio sito Joomla! senza l&#8217;utilizzo di alcune estensioni. Sono pertanto tutti accorgimenti che possono essere adottati a partire dalla versione base del CMS più popolare al mondo.</p>
<p>L&#8217;importanza sulle prestazioni di un sito è di rilievo in quanto la riduzione del tempo di caricamento delle pagine comporta benifici sulle prestazioni SEO.<br />
<span id="more-421"></span></p>
<p>Ecco i consigli che tutti gli sviluppatori/creatori/possessori di un sito Joomla! dovrebbero seguire:</p>
<ul>
<li><strong>abilitare la cache</strong>: utilizzare la cache interna di Joomla! per velocizzare ed alleggerire l&#8217;elaborazione del server per la generazione delle pagine; qualora il supporto cache di php non fosse installato è possibile utilizzare il salvataggio su file (all&#8217;interno della cartella cache);</li>
<li><strong>installare l&#8217;ultima versione disponibile</strong>: gli aggiornamenti di Joomla! apportano modifiche per la risoluzione di bug e problemi ma al tempo stesso apportano miglioramenti in termini di prestazioni;</li>
<li><strong>mantenere le estensioni aggiornate</strong>: come per il core del CMS anche le estensioni di terze parti dovrebbero venire aggiornate regolarmente per risolvere problemi di sicurezza e ottimizzare le elaborazioni interne; molti problemi di prestazioni sono infatti spesso fatti ricondurre alle estensioni di terze parti;</li>
<li><strong>attenzione ai requisiti server</strong>: fare attenzione alla configurazione dell&#8217;hosting quando si sceglie un provider! Verificare sempre che, almeno per il momento, la configurazione minima corrisponda a PHP5, MySql 5 e Apache 2;</li>
<li><strong>attenzione alla scelta del server</strong>: il servizio di hosting scelto è informato in termini di performance, affidabilità e sicurezza? Hanno esperienza nella configurazione di server per Joomla? <strong>Pagando 2$ al mese per un hosting con spazio e banda illimitata non possiamo di certo aspettarci buone performace!</strong></li>
<li><strong>compressione di file e CDN</strong>: una tecnica avanzata potrebbe essere quella di attivare una compressione di script e stili del sito ed eventualmente utilizzare un CDN per la propagazione ottimale dei contenuti del proprio sito.</li>
</ul>
<p>Queste regole fondamentali possono essere ovviamente estese con funzionalità avanzate e, perchè no, con l&#8217;integrazione di estensioni di terze parti dedicate a questo scopo.</p>
<p>E&#8217; possibile consultare l&#8217;articolo originale seguendo questo <a title="Guida alle performance di Joomla! " href="http://community.joomla.org/blogs/community/1121-joomla-performance-basics.html" onclick="pageTracker._trackPageview('/outgoing/community.joomla.org/blogs/community/1121-joomla-performance-basics.html?referer=');">link</a>.</p>


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		<title>WordPress 2.9.2 disponibile per l&#8217;aggiornamento</title>
		<link>http://www.silzenna.net/2010/02/16/wordpress-2-9-2-disponibile-per-laggiornamento/</link>
		<comments>http://www.silzenna.net/2010/02/16/wordpress-2-9-2-disponibile-per-laggiornamento/#comments</comments>
		<pubDate>Tue, 16 Feb 2010 09:52:52 +0000</pubDate>
		<dc:creator>silzenna</dc:creator>
				<category><![CDATA[Download]]></category>
		<category><![CDATA[News]]></category>
		<category><![CDATA[aggiornamenti]]></category>
		<category><![CDATA[aggiornamento wordpress]]></category>
		<category><![CDATA[download wordpress]]></category>
		<category><![CDATA[update wordpress]]></category>

		<guid isPermaLink="false">http://www.silzenna.net/?p=416</guid>
		<description><![CDATA[Rilasciato nel pomeriggio di ieri il nuovo aggiornamento di sicurezza di wordpress che arriva così alla versione 2.9.2. ]]></description>
			<content:encoded><![CDATA[<div id="attachment_274" class="wp-caption alignleft" style="width: 222px"><a href="http://www.silzenna.net/wp-content/uploads/2009/05/wordpress-logo_small.png"><img class="size-full wp-image-274" title="wordpress-logo_small" src="http://www.silzenna.net/wp-content/uploads/2009/05/wordpress-logo_small.png" alt="WordPress Image" width="212" height="200" /></a><p class="wp-caption-text">WordPress 2.9.2</p></div>
<p>Rilasciato nel pomeriggio di ieri il nuovo aggiornamento di sicurezza di wordpress che arriva così alla versione 2.9.2.</p>
<p>La versione pone rimedio ad un problema che permetteva agli utenti registrati di accedere ai post cestinati creati da altri utenti. L&#8217;aggiornamento è pertanto raccomandato in tutti quei siti powered by wordpress la cui garanzia di affidabilità deglil utenti non è così chiaramente identificata.</p>
<p>Come usualmente in questi casi, è possibile effettuare l&#8217;aggiornamento automatico in amministrazione seguendo la voce <em>Tools -&gt; </em><em>Upgrade</em> o scaricando l&#8217;ultima versione disponibile dal sito: Note: There is a file embedded within this post, please visit this post to download the file.</p>


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		<title>Nuovo template grafico per silzenna.net</title>
		<link>http://www.silzenna.net/2010/02/11/nuovo-template-grafico-per-silzenna-net/</link>
		<comments>http://www.silzenna.net/2010/02/11/nuovo-template-grafico-per-silzenna-net/#comments</comments>
		<pubDate>Thu, 11 Feb 2010 18:09:59 +0000</pubDate>
		<dc:creator>silzenna</dc:creator>
				<category><![CDATA[News]]></category>
		<category><![CDATA[design]]></category>
		<category><![CDATA[restyling grafico]]></category>
		<category><![CDATA[silzenna]]></category>
		<category><![CDATA[template]]></category>
		<category><![CDATA[wordpress]]></category>

		<guid isPermaLink="false">http://www.silzenna.net/?p=387</guid>
		<description><![CDATA[Dopo circa un'anno dall'ultimo restyling grafico, ecco che il sito ha cambiato nuovamente faccia. ]]></description>
			<content:encoded><![CDATA[<div id="attachment_388" class="wp-caption alignright" style="width: 470px"><a href="http://www.silzenna.net/wp-content/uploads/2010/02/silzenna.net_previous_new_site.png"><img class="size-full wp-image-388" title="silzenna.net_previous_new_site" src="http://www.silzenna.net/wp-content/uploads/2010/02/silzenna.net_previous_new_site.png" alt="vecchio e nuovo silzenna.net" width="460" height="247" /></a><p class="wp-caption-text">Vecchio e Nuovo sito a confronto</p></div>
<p>Dopo circa un&#8217;anno dall&#8217;ultimo restyling grafico, ecco che il sito ha cambiato nuovamente faccia.</p>
<p>Con l&#8217;occasione è stata aggiunta la sezione portfolio con alcuni dei progetti web in cui ho partecipato.</p>
<p>Per qualsiasi maggiore informazione occorre però far sempre riferimento al portfolio delle <a title="Portfolio Web" href="http://www.siloos.it/portfolio" target="_blank" onclick="pageTracker._trackPageview('/outgoing/www.siloos.it/portfolio?referer=');">realizzazioni web di SILOOS</a>.</p>


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		<title>Modificare la dimensione dei tag nel Tag Cloud di WordPress</title>
		<link>http://www.silzenna.net/2010/02/10/modificare-la-dimensione-dei-tag-nel-tag-cloud-di-wordpress/</link>
		<comments>http://www.silzenna.net/2010/02/10/modificare-la-dimensione-dei-tag-nel-tag-cloud-di-wordpress/#comments</comments>
		<pubDate>Wed, 10 Feb 2010 22:08:56 +0000</pubDate>
		<dc:creator>silzenna</dc:creator>
				<category><![CDATA[Tips]]></category>
		<category><![CDATA[Web Development]]></category>
		<category><![CDATA[esempi php]]></category>
		<category><![CDATA[snippet]]></category>
		<category><![CDATA[tag cloud]]></category>
		<category><![CDATA[wordpress]]></category>

		<guid isPermaLink="false">http://www.silzenna.net/?p=364</guid>
		<description><![CDATA[Esempio di codice per modificare la dimensione dei tag all'interno del tag cloud di Wordpress.]]></description>
			<content:encoded><![CDATA[<div class="mceTemp mceIEcenter">
<dl id="attachment_318" class="wp-caption aligncenter" style="width: 293px;">
<dt class="wp-caption-dt"><a href="http://www.silzenna.net/wp-content/uploads/2009/08/logo-wordpress.gif"><img class="size-full wp-image-318" title="logo-wordpress" src="http://www.silzenna.net/wp-content/uploads/2009/08/logo-wordpress.gif" alt="WordPress" width="283" height="66" /></a></dt>
</dl>
</div>
<p>Il modo migliore per modificare la dimensione dei tag all&#8217;interno del tag cloud di WordPress è sicuramente quella di aprire il file functions.php e aggiungere in coda il seguente pezzo di codice:</p>
<pre name="code" class="php">
add_filter( "widget_tag_cloud_args", "my_tag_cloud_args" );
function my_tag_cloud_args($in){
  return "smallest=10&amp;largest=20&amp;number=25&amp;orderby=name&amp;unit=px";
}
</pre>
<p>Modificando il valore di ritorno della funzione a proprio piacimento sarà possibile personalizzare la visualizzazione dei tag all&#8217;interno del tag cloud</p>


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		<title>SNIPPET PHP: separare basename e estensione dai filename</title>
		<link>http://www.silzenna.net/2010/02/10/snippet-php-separare-basename-e-estensione-dai-filename/</link>
		<comments>http://www.silzenna.net/2010/02/10/snippet-php-separare-basename-e-estensione-dai-filename/#comments</comments>
		<pubDate>Wed, 10 Feb 2010 09:07:02 +0000</pubDate>
		<dc:creator>silzenna</dc:creator>
				<category><![CDATA[Snippets]]></category>
		<category><![CDATA[Tips]]></category>
		<category><![CDATA[esempi php]]></category>
		<category><![CDATA[php]]></category>
		<category><![CDATA[script php]]></category>
		<category><![CDATA[snippet]]></category>

		<guid isPermaLink="false">http://www.silzenna.net/?p=358</guid>
		<description><![CDATA[Esempio di codice php per separare basename ed estensione da un filename.]]></description>
			<content:encoded><![CDATA[<p>Per l&#8217;elaborazione dei file da script molto spesso, se non addirittura quasi sempre, risulta utile separare l&#8217;estensione del file dal nome. Questo può servire ad esempio per criptare il nome del file, aggiungere prefissi/suffissi al nome del file o ancora per verificare l&#8217;estensione inserita di un file caricato dall&#8217;utente.</p>
<p>Il codice php per separare basename ed estensione da un filename è il seguente:</p>
<pre name="code" class="php">
// gestione dei filename
$filename = 'image.jpg';
$basefilename = preg_replace("/(.*)\.([^.]+)$/","\\1", $filename);
$ext = preg_replace("/.*\.([^.]+)$/","\\1", $filename);
echo $basefilename . '-' . $ext;
</pre>
<p>L&#8217;esempio sopra produrrà in output</p>
<pre>image - jpg
</pre>


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		<title>Nuovo aggiornamento disponibile: WordPress 2.9</title>
		<link>http://www.silzenna.net/2009/12/19/nuovo-aggiornamento-disponibile-wordpress-2-9/</link>
		<comments>http://www.silzenna.net/2009/12/19/nuovo-aggiornamento-disponibile-wordpress-2-9/#comments</comments>
		<pubDate>Sat, 19 Dec 2009 19:42:19 +0000</pubDate>
		<dc:creator>silzenna</dc:creator>
				<category><![CDATA[Download]]></category>
		<category><![CDATA[News]]></category>
		<category><![CDATA[aggiornamento wordpress]]></category>
		<category><![CDATA[update wordpress]]></category>
		<category><![CDATA[wordpress]]></category>
		<category><![CDATA[wordpress 2.9]]></category>

		<guid isPermaLink="false">http://www.silzenna.net/?p=349</guid>
		<description><![CDATA[Dopo alcuni giorni dal rilascio della versione beta ecco finalmente la versione stabile di Wordpress 2.9, denominata "Carmen" e disponibile attualmente in lingua inglese.]]></description>
			<content:encoded><![CDATA[<div id="attachment_274" class="wp-caption alignright" style="width: 222px"><a href="http://www.silzenna.net/wp-content/uploads/2009/05/wordpress-logo_small.png"><img class="size-full wp-image-274" title="wordpress-logo_small" src="http://www.silzenna.net/wp-content/uploads/2009/05/wordpress-logo_small.png" alt="" width="212" height="200" /></a><p class="wp-caption-text">WordPress 2.9</p></div>
<p>Dopo alcuni giorni dal rilascio della versione beta ecco finalmente la versione stabile di <strong>WordPress 2.9</strong>, denominata &#8220;<em>Carmen</em>&#8221; e disponibile attualmente in lingua inglese.</p>
<p>Tra le principali novità introdotte dal nuovo avanzamento di versione troviamo:</p>
<ul>
<li>introduzione del &#8220;Cestino&#8221; per poter ripristinare post e commenti accidentalmente eliminati;</li>
<li>editor delle immagini integrato;</li>
<li>aggiornamento multiplo dei plugin e controllo di versione;</li>
<li>semplice gestione dell’embed dei video.</li>
</ul>
<p>Per l&#8217;aggiornamento basta utilizzare la semplice e comoda funzionalità presente in bacheca. Alternativamente è possibile effettuare l&#8217;aggiornamento manuale scaricando e scompattando l&#8217;archivio direttamente dalla <a title="Download WordPress" href="http://wordpress.org/download/" target="_blank" onclick="pageTracker._trackPageview('/outgoing/wordpress.org/download/?referer=');">pagina di download di wordpress 2.9</a>.</p>
<p>Per maggiori informazioni riportiamo il link all&#8217;<a href="http://wordpress.org/development/2009/12/wordpress-2-9/" target="_blank" onclick="pageTracker._trackPageview('/outgoing/wordpress.org/development/2009/12/wordpress-2-9/?referer=');">articolo originale</a>.</p>


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		<item>
		<title>Rilasciato WordPress 2.8.6</title>
		<link>http://www.silzenna.net/2009/11/13/rilasciato-wordpress-2-8-6/</link>
		<comments>http://www.silzenna.net/2009/11/13/rilasciato-wordpress-2-8-6/#comments</comments>
		<pubDate>Fri, 13 Nov 2009 09:12:59 +0000</pubDate>
		<dc:creator>silzenna</dc:creator>
				<category><![CDATA[Download]]></category>
		<category><![CDATA[News]]></category>
		<category><![CDATA[Web Development]]></category>
		<category><![CDATA[download wordpress]]></category>
		<category><![CDATA[security release]]></category>
		<category><![CDATA[update wordpress]]></category>
		<category><![CDATA[wordpress]]></category>

		<guid isPermaLink="false">http://www.silzenna.net/?p=347</guid>
		<description><![CDATA[Nuova release di Wordpress 2.8.6, security release che risolve alcuni problemi di sicurezza]]></description>
			<content:encoded><![CDATA[<div id="attachment_318" class="wp-caption alignleft" style="width: 293px"><img class="size-full wp-image-318" title="logo-wordpress" src="http://www.silzenna.net/wp-content/uploads/2009/08/logo-wordpress.gif" alt="WordPress" width="283" height="66" /><p class="wp-caption-text">WordPress 2.8.6 - Security Release</p></div>
<p>Rilasciata una nuova security release di WordPress, la 2.8.6 che risolve un paio di problemi di vulnerabilità del CMS da parte di utenti registrati e autenticati al sito che possiedono privilegi di scrittura nel sito. Pertanto tale aggiornamento è vivamente consigliato a chiunque abbia nel proprio blog utenti non completamente affidabili.</p>
<p>Il primo problema riguarda una vulnerabilità XSS identificata nell’utilizzo congiunto di “Press This” mentre il secondo risolve un problema con la funzione “sanitizing” del nome dei file uploadati che può risultare dannosa con alcune configurazioni di Apache.</p>


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		<title>Security Release: Joomla! 1.5.15</title>
		<link>http://www.silzenna.net/2009/11/05/security-release-joomla-1-5-15/</link>
		<comments>http://www.silzenna.net/2009/11/05/security-release-joomla-1-5-15/#comments</comments>
		<pubDate>Thu, 05 Nov 2009 08:36:57 +0000</pubDate>
		<dc:creator>silzenna</dc:creator>
				<category><![CDATA[Download]]></category>
		<category><![CDATA[News]]></category>
		<category><![CDATA[joomla download]]></category>
		<category><![CDATA[joomla update]]></category>
		<category><![CDATA[Joomla!]]></category>
		<category><![CDATA[security release]]></category>

		<guid isPermaLink="false">http://www.silzenna.net/?p=342</guid>
		<description><![CDATA[Il team di Joomla! ha da pochi istanti rilasciato un aggiornamento di sicurezza a Joomla! 1.5.15 [Wojmamni ama mamni]. ]]></description>
			<content:encoded><![CDATA[<div id="attachment_208" class="wp-caption alignleft" style="width: 167px"><img class="size-full wp-image-208" title="security_release" src="http://www.silzenna.net/wp-content/uploads/2009/03/security_release.png" alt="WordPress Security Release" width="157" height="157" /><p class="wp-caption-text">Joomla! Security Release</p></div>
<p>Il team di Joomla! ha da pochi istanti rilasciato un aggiornamento di sicurezza a Joomla! 1.5.15 [Wojmamni ama mamni].</p>
<p>Sono passati ben tre mesi dall&#8217;ultimo aggiornamento, avvenuto lo scorso 30 luglio, e nonostante siano all&#8217;opera per il rilascio della nuova versione 1.6. gli sviluppatori del progetto, continuano a preservare integrità, stabilità e sicurezza del noto CMS.</p>


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