diff --git a/win-linux/package/windows/Makefile.mk b/win-linux/package/windows/Makefile.mk
index 60649cf5f..0b1db753f 100644
--- a/win-linux/package/windows/Makefile.mk
+++ b/win-linux/package/windows/Makefile.mk
@@ -27,6 +27,10 @@ VCREDIST += $(VCREDIST13)
 endif
 VCREDIST += $(VCREDIST15)
 
+BUILD_TIMESTAMP = $(shell date +%s)
+APPCAST := win-linux/package/windows/update/appcast.xml
+CHANGES_EN := win-linux/package/windows/update/changes.html
+CHANGES_RU := win-linux/package/windows/update/changes_ru.html
 INDEX_HTML := win-linux/package/windows/index.html
 
 ISCC_PARAMS += //Qp
@@ -78,9 +82,12 @@ clean-package:
 		$(dir $(DESKTOP_EDITORS_ZIP))*.zip \
 		$(dir $(DESKTOP_EDITORS_UPDATE))*.exe \
 		$(VCREDIST) \
+		$(APPCAST) \
+		$(CHANGES_EN) \
+		$(CHANGES_RU) \
 		$(INDEX_HTML)
 
-deploy: $(PACKAGES) $(INDEX_HTML)
+deploy: $(PACKAGES) $(APPCAST) $(CHANGES_EN) $(CHANGES_RU) $(INDEX_HTML)
 	aws s3 cp \
 	$(DESKTOP_EDITORS_EXE) \
 	s3://$(S3_BUCKET)/$(WIN_REPO_DIR)/$(PACKAGE_NAME)/$(PACKAGE_VERSION)/ \
@@ -96,17 +103,48 @@ deploy: $(PACKAGES) $(INDEX_HTML)
 	s3://$(S3_BUCKET)/$(WIN_REPO_DIR)/$(PACKAGE_NAME)/$(PACKAGE_VERSION)/ \
 	--acl public-read
 
+	aws s3 cp \
+		$(APPCAST) \
+		s3://$(S3_BUCKET)/$(WIN_REPO_DIR)/$(PACKAGE_NAME)/$(PACKAGE_VERSION)/update/ \
+		--acl public-read
+
+	aws s3 cp \
+		$(CHANGES_EN) \
+		s3://$(S3_BUCKET)/$(WIN_REPO_DIR)/$(PACKAGE_NAME)/$(PACKAGE_VERSION)/update/changes/ \
+		--acl public-read
+
+	aws s3 cp \
+		$(CHANGES_RU) \
+		s3://$(S3_BUCKET)/$(WIN_REPO_DIR)/$(PACKAGE_NAME)/$(PACKAGE_VERSION)/update/changes/ \
+		--acl public-read
+
 #	aws s3 sync \
 #	s3://$(S3_BUCKET)/$(WIN_REPO_DIR)/$(PACKAGE_NAME)/$(PACKAGE_VERSION)/ \
 #	s3://$(S3_BUCKET)/$(WIN_REPO_DIR)/$(PACKAGE_NAME)/latest/ \
 #	--acl public-read \
 #	--delete
 
+M4_PARAMS += -D M4_COMPANY_NAME="$(COMPANY_NAME)"
+M4_PARAMS += -D M4_PRODUCT_NAME="$(PRODUCT_NAME)"
+M4_PARAMS += -D M4_PACKAGE_VERSION="$(PACKAGE_VERSION)"
+M4_PARAMS += -D M4_BUILD_TIMESTAMP="$(shell date +%s)"
 M4_PARAMS += -D M4_S3_BUCKET=$(S3_BUCKET)
 M4_PARAMS += -D M4_WIN_ARCH=$(WIN_ARCH)
 M4_PARAMS += -D M4_EXE_URI="$(WIN_REPO_DIR)/$(PACKAGE_NAME)/$(PACKAGE_VERSION)/$(notdir $(DESKTOP_EDITORS_EXE))"
 M4_PARAMS += -D M4_EXE_UPDATE_URI="$(WIN_REPO_DIR)/$(PACKAGE_NAME)/$(PACKAGE_VERSION)/$(notdir $(DESKTOP_EDITORS_UPDATE))"
 M4_PARAMS += -D M4_ZIP_URI="$(WIN_REPO_DIR)/$(PACKAGE_NAME)/$(PACKAGE_VERSION)/$(notdir $(DESKTOP_EDITORS_ZIP))"
+M4_PARAMS += -D M4_APPCAST_URI="$(WIN_REPO_DIR)/$(PACKAGE_NAME)/$(PACKAGE_VERSION)/update/appcast.xml"
+M4_PARAMS += -D M4_CHANGES_EN_URI="$(WIN_REPO_DIR)/$(PACKAGE_NAME)/$(PACKAGE_VERSION)/update/changes/changes.html"
+M4_PARAMS += -D M4_CHANGES_RU_URI="$(WIN_REPO_DIR)/$(PACKAGE_NAME)/$(PACKAGE_VERSION)/update/changes/changes_ru.html"
+
+$(APPCAST):
+	m4 $(M4_PARAMS) $(BRANDING_DIR)/win-linux/package/windows/update/appcast.xml.m4 > $@
+
+$(CHANGES_EN): L10N=en
+$(CHANGES_RU): L10N=ru
+
+$(CHANGES_EN) $(CHANGES_RU):
+	m4 $(M4_PARAMS) -D L10N="$(L10N)" $(BRANDING_DIR)/win-linux/package/windows/update/changes.html.m4 > $@
 
 % : %.m4
 	m4 $(M4_PARAMS)	$< > $@
diff --git a/win-linux/package/windows/index.html.m4 b/win-linux/package/windows/index.html.m4
index 393a63888..43c25261c 100644
--- a/win-linux/package/windows/index.html.m4
+++ b/win-linux/package/windows/index.html.m4
@@ -24,5 +24,20 @@ ifdef(`M4_ZIP_XP_URI',
 `        <p>Win XP M4_WIN_ARCH-bit archive
             <a href="https://M4_S3_BUCKET.s3-eu-west-1.amazonaws.com/M4_ZIP_XP_URI">zip</a>
         </p>',)
+
+ifdef(`M4_APPCAST_URI',
+`        <p>
+            <a href="https://M4_S3_BUCKET.s3-eu-west-1.amazonaws.com/M4_APPCAST_URI">Appcast</a>
+        </p>',)
+
+ifdef(`M4_CHANGES_EN_URI',
+`        <p>
+            <a href="https://M4_S3_BUCKET.s3-eu-west-1.amazonaws.com/M4_CHANGES_EN_URI">Changes EN</a>
+        </p>',)
+
+ifdef(`M4_CHANGES_RU_URI',
+`        <p>
+            <a href="https://M4_S3_BUCKET.s3-eu-west-1.amazonaws.com/M4_CHANGES_RU_URI">Changes RU</a>
+        </p>',)
     </body>
 </html>
diff --git a/win-linux/package/windows/update/appcast.xml.m4 b/win-linux/package/windows/update/appcast.xml.m4
new file mode 100644
index 000000000..48ad292ca
--- /dev/null
+++ b/win-linux/package/windows/update/appcast.xml.m4
@@ -0,0 +1,32 @@
+changequote()changequote(`,`)dnl
+define(`APPCAST_TITLE`,format(`%s Changelog`,M4_COMPANY_NAME M4_PRODUCT_NAME))dnl
+define(`APPCAST_DESCRIPTION`,`Most recent changes with links to updates.`)dnl
+define(`APPCAST_VERSION`,M4_PACKAGE_VERSION)dnl
+define(`APPCAST_ITEM_TITLE`,format(`Version %s`,patsubst(M4_PACKAGE_VERSION,`\(\.\w+\)$`)))dnl
+define(`APPCAST_PUBDATE`,esyscmd(echo -n $(LANG=en_US date -u -d @M4_BUILD_TIMESTAMP "+%b %e %Y")))dnl
+define(`APPCAST_LINK_CHANGES_EN`,`http://download.onlyoffice.com/install/desktop/editors/windows/onlyoffice/changes/changes.html`)dnl
+define(`APPCAST_LINK_CHANGES_RU`,`http://download.onlyoffice.com/install/desktop/editors/windows/onlyoffice/changes/changes_ru.html`)dnl
+define(`APPCAST_LINK_EXE_64`,`http://download.onlyoffice.com/install/desktop/editors/windows/onlyoffice/updates/editors_update_x64.exe`)dnl
+define(`APPCAST_LINK_EXE_32`,`http://download.onlyoffice.com/install/desktop/editors/windows/onlyoffice/updates/editors_update_x86.exe`)dnl
+<?xml version="1.0" encoding="UTF-8"?>
+<rss version="2.0" xmlns:sparkle="http://www.andymatuschak.org/xml-namespaces/sparkle" xmlns:dc="http://purl.org/dc/elements/1.1/">
+    <channel>
+        <title>APPCAST_TITLE</title>
+        <description>APPCAST_DESCRIPTION</description>
+        <language>en</language>
+        <item>
+            <title>APPCAST_ITEM_TITLE</title>
+            <pubDate>APPCAST_PUBDATE</pubDate>
+            <sparkle:releaseNotesLink>APPCAST_LINK_CHANGES_EN</sparkle:releaseNotesLink>
+            <sparkle:releaseNotesLink xml:lang="ru-RU">APPCAST_LINK_CHANGES_RU</sparkle:releaseNotesLink>
+            <enclosure sparkle:os="windows-x64" sparkle:version="APPCAST_VERSION" sparkle:shortVersionString="APPCAST_VERSION" url="APPCAST_LINK_EXE_64" length="0" type="application/octet-stream" sparkle:installerArguments="/silent /update"/>
+        </item>
+        <item>
+            <title>APPCAST_ITEM_TITLE</title>
+            <pubDate>APPCAST_PUBDATE</pubDate>
+            <sparkle:releaseNotesLink>APPCAST_LINK_CHANGES_EN</sparkle:releaseNotesLink>
+            <sparkle:releaseNotesLink xml:lang="ru-RU">APPCAST_LINK_CHANGES_RU</sparkle:releaseNotesLink>
+            <enclosure sparkle:os="windows-x86" sparkle:version="APPCAST_VERSION" sparkle:shortVersionString="APPCAST_VERSION" url="APPCAST_LINK_EXE_32" length="0" type="application/octet-stream" sparkle:installerArguments="/silent /update"/>
+        </item>
+    </channel>
+</rss>
diff --git a/win-linux/package/windows/update/changes.html.m4 b/win-linux/package/windows/update/changes.html.m4
new file mode 100644
index 000000000..a28ad9204
--- /dev/null
+++ b/win-linux/package/windows/update/changes.html.m4
@@ -0,0 +1,55 @@
+changequote()changequote(`,`)dnl
+changecom(`<!--`,`-->`)dnl
+define(`CHANGES_TITLE[en]`,format(`%s Release Notes`,M4_COMPANY_NAME M4_PRODUCT_NAME))dnl
+define(`CHANGES_TITLE[ru]`,format(`История изменений %s`,M4_COMPANY_NAME M4_PRODUCT_NAME))dnl
+define(`CHANGES_VERSION`,patsubst(M4_PACKAGE_VERSION,`\(\.\w+\)$`))dnl
+define(`CHANGES_HEADING`,M4_COMPANY_NAME M4_PRODUCT_NAME CHANGES_VERSION)dnl
+define(`CHANGES_RELEASE_DATE[en]`,esyscmd(echo -n $(LANG=en_US.UTF-8 date -u -d @M4_BUILD_TIMESTAMP "+%b %e&comma; %Y")))dnl
+define(`CHANGES_RELEASE_DATE[ru]`,esyscmd(echo -n $(LANG=ru_RU.UTF-8 date -u -d @M4_BUILD_TIMESTAMP "+%e %b %Y")))dnl
+define(`CHANGES_BODY_FILE`,esyscmd(echo -n $(dirname "__file__"))/changes/CHANGES_VERSION/L10N.html)dnl
+define(`CHANGES_BODY`,patsubst(sinclude(CHANGES_BODY_FILE),`^`,`        `))dnl
+define(`CHANGES_MORE[en]`,`and a little more...`)dnl
+define(`CHANGES_MORE[ru]`,`и многое другое...`)dnl
+define(`CHANGES_LINK_CHANGELOG`,format(`https://github.com/ONLYOFFICE/DesktopEditors/blob/master/CHANGELOG.md#%s`,patsubst(CHANGES_VERSION,`\.`)))dnl
+<!DOCTYPE html>
+<html>
+<head>
+    <meta charset="utf-8">
+    <title>defn(CHANGES_TITLE[L10N])</title>
+    <style type="text/css">
+        body {
+            background:white;
+            font: 12px "Lucida Grande", "Lucida Sans Unicode", Verdana, Lucida, Helvetica, sans-serif;
+        }
+        h1, h2, h3 {
+            color: #000000;
+            font-family: "Helvetica";
+            font-weight: normal;
+            font-style: normal;
+        }
+        h1 {
+            font-size: 18px;
+        }
+        h2 {
+            font-size: 16px;
+        }
+        h3 {
+            font-size: 14px;
+        }
+        .releasedate {
+            color: #888;
+            font-size: medium;
+        }
+        .version {
+            border-bottom: 1px solid #cfcfcf;
+        }
+    </style>
+</head>
+<body>
+    <div class="version">
+        <h1>CHANGES_HEADING<span class="releasedate"> - defn(CHANGES_RELEASE_DATE[L10N])</span></h1>
+CHANGES_BODY
+        <div style="margin:0 0 20px 0;"><a href="CHANGES_LINK_CHANGELOG" target="_blank">defn(CHANGES_MORE[L10N])</a></div>
+    </div>
+</body>
+</html>
diff --git a/win-linux/package/windows/update/changes/5.6.4/en.html b/win-linux/package/windows/update/changes/5.6.4/en.html
new file mode 100644
index 000000000..29a4e1b62
--- /dev/null
+++ b/win-linux/package/windows/update/changes/5.6.4/en.html
@@ -0,0 +1,7 @@
+<h2>Fixes</h2>
+<ul>
+    <li>Fix several vulnerabilities in convertion app (bugs #46348, #46352, 46353, #46384, #46434, #46436)</li>
+    <li>Fix vulnerability in TXT converter (Bug #46437)</li>
+    <li>Fix Path Traversal vulnerability via image upload params (Bug #46113)</li>
+    <li>Fix Path Traversal vulnerability via `savefile` param (Bug #46037)</li>
+</ul>
\ No newline at end of file
diff --git a/win-linux/package/windows/update/changes/5.6.4/ru.html b/win-linux/package/windows/update/changes/5.6.4/ru.html
new file mode 100644
index 000000000..28476da49
--- /dev/null
+++ b/win-linux/package/windows/update/changes/5.6.4/ru.html
@@ -0,0 +1,7 @@
+<h2>Исправления</h2>
+<ul>
+    <li>Исправлено несколько уязвимостей в приложении конвертации (Bugs #46348, #46352, 46353, #46384, #46434, #46436)</li>
+    <li>Исправлена уязвимость в конверторе TXT формата (Bug #46437)</li>
+    <li>Исправлена уязвимость "Path Traversal" в параметрах при загрузке изображений (Bug #46113)</li>
+    <li>Исправлена уязвимость "Path Traversal" в параметре `savefile` (Bug #46037)</li>
+</ul>
\ No newline at end of file
diff --git a/win-linux/package/windows/update/changes/6.0.0/en.html b/win-linux/package/windows/update/changes/6.0.0/en.html
new file mode 100644
index 000000000..e69de29bb
diff --git a/win-linux/package/windows/update/changes/6.0.0/ru.html b/win-linux/package/windows/update/changes/6.0.0/ru.html
new file mode 100644
index 000000000..e69de29bb