Bug 577278 - Readme file for 4.22
4.22 porting guide for Readme
Change-Id: I49550ad84156e1015b42b44bb77848bc4e66a627
Signed-off-by: Kalyan Prasad Tatavarthi <kalyan_prasad@in.ibm.com>
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+<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.0 Transitional//EN">
+<html lang="en">
+<head>
+<meta name="copyright" content="Copyright (c) IBM Corporation and others 2021. This page is made available under license. For full details see the LEGAL in the documentation book that contains this page." >
+<meta http-equiv="Content-Type" content="text/html; charset=ISO-8859-1">
+<meta http-equiv="Content-Style-Type" content="text/css">
+<link rel="STYLESHEET" href="../book.css" charset="ISO-8859-1" type="text/css">
+<title>Eclipse 2021-12 (4.22) Plug-in Migration Guide</title>
+</head>
+
+<body>
+
+<h1>Eclipse 2021-12 (4.22) Plug-in Migration Guide</h1>
+<p>This guide covers migrating Eclipse 4.21 plug-ins to Eclipse 4.22.</p>
+<p>One of the goals of Eclipse 4.22 was to move Eclipse forward while remaining compatible
+ with previous versions to the greatest extent possible. That is, plug-ins written
+ against the Eclipse 4.21 APIs should continue to work in 4.22 in spite of any API changes.</p>
+<p>The key kinds of compatibility are API contract compatibility and binary compatibility.
+ API contract compatibility means that valid use of 4.21 APIs remains valid for
+ 4.22, so there is no need to revisit working code. Binary compatibility means
+ that the API method signatures, etc. did not change in ways that would cause
+ existing compiled ("binary") code to no longer link and run with the
+ new 4.22 libraries.</p>
+<p>While every effort was made to avoid breakage, there are a few areas of incompatibility or new
+ APIs that should be adopted by clients.
+ These documents describe those areas and provide instructions for migrating 4.21 plug-ins to
+ 4.22.</p>
+<ul>
+ <li><a href="https://help.eclipse.org/2021-12/topic/org.eclipse.platform.doc.isv/porting/eclipse_4_22_porting_guide.html?cp=2_3_1_0">
+ Eclipse Platform 2021-12 (4.22) Plug-in Migration Guide</a></li>
+ <li><a href="https://help.eclipse.org/2021-12/topic/org.eclipse.platform.doc.isv/porting/removals.html?cp=2_3_0">
+ Deprecated API removals in Eclipse Platform</a></li>
+ <li><a href="https://help.eclipse.org/2021-12/topic/org.eclipse.jdt.doc.isv/porting/eclipse_4_22_porting_guide.html?cp=3_2_0_0">
+ Eclipse JDT 2021-12 (4.22) Plug-in Migration Guide</a></li>
+</ul>
+
+</body>
+</html>
