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	<id>http://ynls.crusty.computer/index.php?action=history&amp;feed=atom&amp;title=OS%2F400</id>
	<title>OS/400 - Revision history</title>
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	<updated>2026-09-03T18:03:31Z</updated>
	<subtitle>Revision history for this page on the wiki</subtitle>
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		<id>http://ynls.crusty.computer/index.php?title=OS/400&amp;diff=116&amp;oldid=prev</id>
		<title>Snow: Created page with &quot;{{Infobox Software | title = OS/400 | image = S36 SSP.png | intro = xx, 1988 | discon = Current | isa = IMPI, PowerPC AS }}  &#039;&#039;&#039;OS/400&#039;&#039;&#039; is the operating system of the AS/400. It is an evolution of the earlier Control Program Facility found on the System/38 and, although the OS/400 branding has been dropped, is still maintained and developed by IBM.  == Notable Versions == V2R2 is believed to be the first version of OS/400 to introduce the System P...&quot;</title>
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		<updated>2024-11-05T03:46:46Z</updated>

		<summary type="html">&lt;p&gt;Created page with &amp;quot;{{Infobox Software | title = OS/400 | image = S36 SSP.png | intro = xx, 1988 | discon = Current | isa = &lt;a href=&quot;/index.php?title=IMPI&amp;amp;action=edit&amp;amp;redlink=1&quot; class=&quot;new&quot; title=&quot;IMPI (page does not exist)&quot;&gt;IMPI&lt;/a&gt;, &lt;a href=&quot;/index.php?title=PowerPC_AS&amp;amp;action=edit&amp;amp;redlink=1&quot; class=&quot;new&quot; title=&quot;PowerPC AS (page does not exist)&quot;&gt;PowerPC AS&lt;/a&gt; }}  &amp;#039;&amp;#039;&amp;#039;OS/400&amp;#039;&amp;#039;&amp;#039; is the operating system of the &lt;a href=&quot;/index.php?title=AS/400&amp;amp;action=edit&amp;amp;redlink=1&quot; class=&quot;new&quot; title=&quot;AS/400 (page does not exist)&quot;&gt;AS/400&lt;/a&gt;. It is an evolution of the earlier &lt;a href=&quot;/index.php?title=Control_Program_Facility&quot; title=&quot;Control Program Facility&quot;&gt;Control Program Facility&lt;/a&gt; found on the &lt;a href=&quot;/index.php?title=System/38&amp;amp;action=edit&amp;amp;redlink=1&quot; class=&quot;new&quot; title=&quot;System/38 (page does not exist)&quot;&gt;System/38&lt;/a&gt; and, although the OS/400 branding has been dropped, is still maintained and developed by IBM.  == Notable Versions == V2R2 is believed to be the first version of OS/400 to introduce the System P...&amp;quot;&lt;/p&gt;
&lt;p&gt;&lt;b&gt;New page&lt;/b&gt;&lt;/p&gt;&lt;div&gt;{{Infobox Software&lt;br /&gt;
| title = OS/400&lt;br /&gt;
| image = S36 SSP.png&lt;br /&gt;
| intro = xx, 1988&lt;br /&gt;
| discon = Current&lt;br /&gt;
| isa = [[IMPI]], [[PowerPC AS]]&lt;br /&gt;
}}&lt;br /&gt;
&lt;br /&gt;
&amp;#039;&amp;#039;&amp;#039;OS/400&amp;#039;&amp;#039;&amp;#039; is the operating system of the [[AS/400]]. It is an evolution of the earlier [[Control Program Facility]] found on the [[System/38]] and, although the OS/400 branding has been dropped, is still maintained and developed by IBM.&lt;br /&gt;
&lt;br /&gt;
== Notable Versions ==&lt;br /&gt;
V2R2 is believed to be the first version of OS/400 to introduce the [[System Password]] mechanism.&lt;br /&gt;
&lt;br /&gt;
V3R1 is the first version of OS/400 to add TCP/IP support. It is also one of two versions of OS/400 to receive a simultaneous IPMI and PowerPC AS release; its contemporary PowerPC version was V3R5.&lt;br /&gt;
&lt;br /&gt;
V4R4 is the preferred version of OS/400 to run on first-generation PowerPC AS machines as it is far less demanding on system resources when compared to V5R1, and is the final version of OS/400 to support [[Advanced/36]] and [[OfficeVision]].&lt;br /&gt;
&lt;br /&gt;
V4R5 drops all support for Advanced/36 and OfficeVision, and these applications will be removed when upgrading to V4R5. It is also the final version of OS/400 to not require license keys when installed on an [[AS/400 Model 150]].&lt;br /&gt;
&lt;br /&gt;
V5R1, like its later V5R4 counterpart, was one of the long-toothed releases of OS/400 and could still be found driving many businesses into the 2010s. It is also the final version to be branded OS/400.&lt;br /&gt;
&lt;br /&gt;
== Archived Versions ==&lt;br /&gt;
[[OS/400 V3R1]]&lt;br /&gt;
&lt;br /&gt;
[[OS/400 V4R4]]&lt;br /&gt;
&lt;br /&gt;
[[OS/400 V5R1]]&lt;br /&gt;
&lt;br /&gt;
[[Category:Software]] [[Category:Operating Systems]]&lt;/div&gt;</summary>
		<author><name>Snow</name></author>
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