diff --git a/zkdoc/release-note b/zkdoc/release-note
index 8bf6f1c2db4..0ed390db9a8 100644
--- a/zkdoc/release-note
+++ b/zkdoc/release-note
@@ -5,6 +5,7 @@ ZK 10.0.1
   ZK-5679: RichletMapping with "/" on Class does not work on StatelessRichlet class
 
 * Upgrade Notes
+  + Remove zkplus/liferay because it is designed for ie6 & ie7 which are not supported by ZK10.
 
    --------
 ZK 10.0.0
diff --git a/zkplus/src/main/java/org/zkoss/zkplus/liferay/JQueryRenderCachedPatch.java b/zkplus/src/main/java/org/zkoss/zkplus/liferay/JQueryRenderCachedPatch.java
deleted file mode 100644
index 8bb40445d20..00000000000
--- a/zkplus/src/main/java/org/zkoss/zkplus/liferay/JQueryRenderCachedPatch.java
+++ /dev/null
@@ -1,105 +0,0 @@
-/* JQueryRenderPatch.java
-
-	Purpose:
-		
-	Description:
-		
-	History:
-		Sun Jan 17 11:48:04 TST 2010, Created by tomyeh
-
-Copyright (C) 2010 Potix Corporation. All Rights Reserved.
-
-*/
-package org.zkoss.zkplus.liferay;
-
-import java.util.regex.Matcher;
-import java.util.regex.Pattern;
-
-import org.slf4j.Logger;
-import org.slf4j.LoggerFactory;
-
-/**
- * Used to patch the rendering result of a ZK portlet for Liferay.
- * When using ZK portlets with Liferay under Internet Explorer, we have
- * to delay the processing at the client a bit. This patch assume 
- * "/zkau/web/js/zk.wpd" has loaded by Liferay, please refer to 
- * www.liferay.com document for configuration 
- *
- * <p>To use it, you have to specify a library property called
- * ""org.zkoss.zk.portlet.PageRenderPatch.class" with this class's name
- * ("org.zkoss.zkplus.liferay.JQueryRenderCachedPatch").
- *
- * @author tomyeh, sam
- * @since 5.0.1
- */
-public class JQueryRenderCachedPatch extends JQueryRenderPatch {
-	private static final Logger log = LoggerFactory.getLogger(JQueryRenderCachedPatch.class);
-
-	protected String getBrowserDelay() {
-		return "zk.ie6_ || zk.ie7_ ? 1300 : 100";
-	}
-
-	/**
-	 *	Append CSS link to head, and remove zk.wpd script
-	 */
-	protected String[] processHtml(String html) {
-		boolean isAppendCSS = false;
-		StringBuffer script = new StringBuffer(
-				"<script>function _zkCSS(uri){var e=document.createElement(\"LINK\");e.rel=\"stylesheet\";e.type=\"text/css\";e.href=uri;document.getElementsByTagName(\"HEAD\")[0].appendChild(e);};");
-		Pattern cssPattern = Pattern.compile("<link[^>]+href=[\"']?([^'\"> ]+)[\"']?[^>]*(/>|>\\s*</link>)");
-		Pattern scriptPattern = Pattern
-				.compile("<script[^>]+src=[\"']?([^'\"> ]+/zk.wpd)[\"']?[^>]*(/>|>\\s*</script>)");
-
-		StringBuffer buffer = new StringBuffer();
-		int parseStart = 0, scriptStart = 0, scriptEnd = 0;
-		for (scriptStart = html.indexOf("<script"); scriptStart != -1;) {
-			isAppendCSS = extractCSS(html, parseStart, scriptStart, cssPattern, script, buffer) ? true : isAppendCSS;
-
-			scriptEnd = html.indexOf("</script>", scriptStart);
-			if (scriptEnd == -1)
-				break;
-			scriptEnd += "</script>".length();
-
-			removeScript(html, scriptStart, scriptEnd, scriptPattern, script, buffer);
-			if ((scriptStart = html.indexOf("<script", scriptEnd)) != -1)
-				parseStart = scriptEnd;
-			else {
-				buffer.append(html.substring(scriptEnd, html.length()));
-				break;
-			}
-		}
-		String[] ret = { "", html };
-		if (isAppendCSS) {
-			script.append("</script>");
-			ret[0] = script.toString();
-			ret[1] = buffer.toString();
-		}
-		return ret;
-	}
-
-	private static boolean extractCSS(String html, int start, int end, Pattern cssPattern, StringBuffer scriptBuffer,
-			StringBuffer htmlBuffer) {
-		if (!(start < end))
-			return false;
-
-		boolean isAppendCSS = false;
-		Matcher m = cssPattern.matcher(html.substring(start, end));
-		while (m.find()) {
-			isAppendCSS = true;
-			scriptBuffer.append("_zkCSS('" + m.group(1) + "');");
-			m.appendReplacement(htmlBuffer, "");
-		}
-		m.appendTail(htmlBuffer);
-		return isAppendCSS;
-	}
-
-	private static void removeScript(String html, int start, int end, Pattern scriptPattern, StringBuffer scriptBuffer,
-			StringBuffer htmlBuffer) {
-		String scriptBlock = html.substring(start, end);
-		Matcher m = scriptPattern.matcher(scriptBlock);
-		if (m.find())
-			m.appendReplacement(scriptBuffer, "");
-		else
-			htmlBuffer.append(scriptBlock);
-	}
-}
\ No newline at end of file
diff --git a/zkplus/src/main/java/org/zkoss/zkplus/liferay/JQueryRenderPatch.java b/zkplus/src/main/java/org/zkoss/zkplus/liferay/JQueryRenderPatch.java
deleted file mode 100644
index 9dd811bb17e..00000000000
--- a/zkplus/src/main/java/org/zkoss/zkplus/liferay/JQueryRenderPatch.java
+++ /dev/null
@@ -1,157 +0,0 @@
-/* JQueryRenderPatch.java
-
-	Purpose:
-		
-	Description:
-		
-	History:
-		Sun Jan 17 11:48:04 TST 2010, Created by tomyeh
-
-Copyright (C) 2010 Potix Corporation. All Rights Reserved.
-
-*/
-package org.zkoss.zkplus.liferay;
-
-import java.io.IOException;
-import java.io.StringWriter;
-import java.io.Writer;
-import java.util.regex.Matcher;
-import java.util.regex.Pattern;
-
-import org.slf4j.Logger;
-import org.slf4j.LoggerFactory;
-
-import org.zkoss.lang.Library;
-import org.zkoss.lang.Strings;
-import org.zkoss.zk.ui.Page;
-import org.zkoss.zk.ui.sys.PageRenderPatch;
-import org.zkoss.zk.ui.sys.RequestInfo;
-
-/**
- * Used to patch the rendering result of a ZK portlet for Liferay.
- * When using ZK portlets with Liferay under Internet Explorer, we have
- * to delay the processing at the client a bit.
- *
- * <p>To use it, you have to specify a library property called
- * ""org.zkoss.zk.portlet.PageRenderPatch.class" with this class's name
- * ("org.zkoss.zkplus.liferay.JQueryRenderPatch").
- *
- * <p>You can further control the behavior of this patch by use of
- * a library property called "org.zkoss.zkplus.liferary.jQueryPatch"
- * (refer to {@link #JQUERY_PATCH} for details).
- *
- * @author tomyeh, sam
- * @since 5.0.0
- */
-public class JQueryRenderPatch implements PageRenderPatch {
-	private static final Logger log = LoggerFactory.getLogger(JQueryRenderPatch.class);
-
-	/** A library property to indicate how to apply the so-called jQuery patch.
-	 * <p>Default: "500" (it means 500 milliseconds)
-	 *
-	 * <p>You can specify a number to indicate how many milliseconds to wait
-	 * before replacing with the correct content.
-	 * If negative, the patch is ignored.
-	 */
-	public static final String JQUERY_PATCH = "org.zkoss.zkplus.liferary.jQueryPatch";
-
-	private int _delay = -1;
-
-	public JQueryRenderPatch() {
-		final String val = Library.getProperty(JQUERY_PATCH);
-		try {
-			_delay = Integer.parseInt(val);
-		} catch (Throwable ex) {
-			log.warn("Ignored delay time specified in " + JQUERY_PATCH + ": " + val);
-		}
-	}
-
-	/** Returns the number of milliseconds to wait before replacing with
-	 * the correct content.
-	 * <p>Default: depends on the value defined in the {@link #JQUERY_PATCH}
-	 * library property.
-	 */
-	public int getDelay() {
-		return _delay;
-	}
-
-	/** Sets the number of milliseconds to wait before replacing with
-	 * the correct content.
-	 * @see #JQUERY_PATCH
-	 */
-	public void setDelay(int delay) {
-		_delay = delay;
-	}
-
-	/** It returns an instance of StringWriter if {@link #getDelay} is non-negative,
-	 * or null if negative (means no patch).
-	 */
-	public Writer beforeRender(RequestInfo reqInfo) {
-		return _delay >= 0 ? new StringWriter() : null;
-		//we cannot retrieve HTTP request's header so no need to
-		//apply the patch for particular browsers, such as ie
-	}
-
-	public void patchRender(RequestInfo reqInfo, Page page, Writer result, Writer out) throws IOException {
-		final String extid = page.getUuid() + "-ext";
-		String[] html = processHtml(((StringWriter) result).toString());
-		//we have to process CSS and append it to HEAD
-		out.write(html[0]);
-		out.write("<div id=\"");
-		out.write(extid);
-		out.write("\"></div><script>setTimeout(function(){\njQuery('#");
-		out.write(extid);
-		out.write("').append('");
-		//we have to use append() since it is evaluated synchronously
-		//while replaceWith() is not
-		out.write(Strings.escape(html[1], Strings.ESCAPE_JAVASCRIPT));
-		out.write("');},");
-		out.write("" + getBrowserDelay());
-		out.write(");</script>");
-	}
-
-	protected String getBrowserDelay() {
-		return "" + _delay;
-	}
-
-	protected String[] processHtml(String html) {
-		boolean isAppendCSS = false;
-		StringBuffer script = new StringBuffer(
-				"<script>function _zkCSS(uri){var e=document.createElement(\"LINK\");e.rel=\"stylesheet\";e.type=\"text/css\";e.href=uri;document.getElementsByTagName(\"HEAD\")[0].appendChild(e);};");
-		Pattern p = Pattern.compile("<link[^>]+href=[\"']?([^'\"> ]+)[\"']?[^>]*>");
-
-		StringBuffer buffer = new StringBuffer();
-		int parseStart = 0, scriptStart = 0, scriptEnd = 0;
-		for (scriptStart = html.indexOf("<script"); scriptStart != -1;) {
-			if (parseStart < scriptStart) {
-				Matcher m = p.matcher(html.substring(parseStart, scriptStart));
-				while (m.find()) {
-					isAppendCSS = true;
-					String uri = m.group(1);
-					script.append("_zkCSS('" + uri + "');");
-					m.appendReplacement(buffer, "");
-				}
-				m.appendTail(buffer);
-			}
-			scriptEnd = html.indexOf("</script>", scriptStart);
-			if (scriptEnd == -1)
-				break;
-			scriptEnd += "</script>".length();
-			buffer.append(html.subSequence(scriptStart, scriptEnd));
-			if ((scriptStart = html.indexOf("<script", scriptEnd)) != -1)
-				parseStart = scriptEnd;
-			else {
-				buffer.append(html.substring(scriptEnd, html.length()));
-				break;
-			}
-		}
-
-		String[] ret = { "", html };
-		if (isAppendCSS) {
-			script.append("</script>");
-			ret[0] = script.toString();
-			ret[1] = buffer.toString();
-		}
-		return ret;
-	}
-}
diff --git a/zkplus/src/main/java/org/zkoss/zkplus/liferay/NonRootContextJQueryRenderPatch.java b/zkplus/src/main/java/org/zkoss/zkplus/liferay/NonRootContextJQueryRenderPatch.java
deleted file mode 100644
index 1ad7ca2e328..00000000000
--- a/zkplus/src/main/java/org/zkoss/zkplus/liferay/NonRootContextJQueryRenderPatch.java
+++ /dev/null
@@ -1,50 +0,0 @@
-/* NonRootContextJQueryRenderPatch.java
-
-	Purpose:
-		
-	Description:
-		
-	History:
-		Thu Feb 2 17:24:04 TST 2012, Created by jimmyshiau
-
-Copyright (C) 2012 Potix Corporation. All Rights Reserved.
-
-*/
-package org.zkoss.zkplus.liferay;
-
-import java.io.IOException;
-import java.io.StringWriter;
-import java.io.Writer;
-
-import javax.portlet.PortletSession;
-
-import org.zkoss.zk.ui.Page;
-import org.zkoss.zk.ui.sys.RequestInfo;
-
-/**
- * Used to patch the rendering result of a ZK portlet for Liferay.
- * When using ZK portlets with Liferay under non root context, we have
- * to add a JSESSIONID under root(/) path.
- *
- * <p>To use it, you have to specify a library property called
- * ""org.zkoss.zk.portlet.PageRenderPatch.class" with this class's name
- * ("org.zkoss.zkplus.liferay.NonRootContextJQueryRenderPatch").
- *
- * @author jimmy
- * @since 5.0.11
- */
-public class NonRootContextJQueryRenderPatch extends JQueryRenderPatch {
-
-	public Writer beforeRender(RequestInfo reqInfo) {
-		return new StringWriter();
-	}
-
-	public void patchRender(RequestInfo reqInfo, Page page, Writer result, Writer out) throws IOException {
-		if (getDelay() >= 0)
-			super.patchRender(reqInfo, page, result, out);
-		PortletSession p = (PortletSession) reqInfo.getSession().getNativeSession();
-		out.write("<script>zk.afterMount(function () {" + "document.cookie = 'JSESSIONID=" + p.getId() + "; path=/'"
-				+ "});</script>");
-	}
-
-}
diff --git a/zkplus/src/main/java/org/zkoss/zkplus/liferay/package.html b/zkplus/src/main/java/org/zkoss/zkplus/liferay/package.html
deleted file mode 100644
index 8b6814864b4..00000000000
--- a/zkplus/src/main/java/org/zkoss/zkplus/liferay/package.html
+++ /dev/null
@@ -1,8 +0,0 @@
-<html>
-<head>
-<title>Utilities to support Liferay</title>
-</head>
-<body>
-	<p>Utilities to support <a href="http://www.liferay.com/">Liferay Portal</a>.</p>
-</body>
-</html>