diff --git a/_includes/header.html b/_includes/header.html
index 2afd73fb539985..eb7be7be3c011a 100644
--- a/_includes/header.html
+++ b/_includes/header.html
@@ -1,3 +1,17 @@
+<style>
+.top-bar {
+  display: block;
+  border-bottom: 1px solid goldenrod;
+  background: lightgoldenrodyellow;
+  line-height: 3em;
+  text-align: center;
+}
+</style>
+
+<aside class="top-bar">
+  We are planning to migrate the EIP &amp; ERC websites to a new rendering system in early <time datetime="2026-02">February 2026</time>. Please read our <a href="https://github.com/eips-wg/preprocessor/blob/master/MIGRATION.md">migration guide</a> for more details. Leave any questions/comments on the <a href="https://ethereum-magicians.org/t/eip-erc-website-migration-jekyll-zola/27375">discussion thread</a>.
+</aside>
+
 <header class="site-header" role="banner">
   <div class="wrapper">
     {%- assign default_paths = site.pages | map: "path" -%}
diff --git a/_includes/rssnotice.xml b/_includes/rssnotice.xml
new file mode 100644
index 00000000000000..52605ebcfe9402
--- /dev/null
+++ b/_includes/rssnotice.xml
@@ -0,0 +1,11 @@
+    <item>
+      <title>EIP/ERC Website Migration</title>
+      <category>News</category>
+      <comments>https://ethereum-magicians.org/t/eip-erc-website-migration-jekyll-zola/27375</comments>
+      <description>
+          We are planning to migrate the EIP &amp;amp; ERC websites to a new rendering system in early &lt;time datetime=&quot;2026-02&quot;&gt;February 2026&lt;/time&gt;. Please read our &lt;a href=&quot;https://github.com/eips-wg/preprocessor/blob/master/MIGRATION.md&quot;&gt;migration guide&lt;/a&gt; for more details. Leave any questions/comments on the &lt;a href=&quot;https://ethereum-magicians.org/t/eip-erc-website-migration-jekyll-zola/27375&quot;&gt;discussion thread&lt;/a&gt;.
+      </description>
+      <pubDate>Fri, 02 Jan 2026 14:48:00 -0500</pubDate>
+      <link>https://github.com/eips-wg/preprocessor/blob/master/MIGRATION.md</link>
+      <guid isPermaLink="true">https://github.com/eips-wg/preprocessor/blob/master/MIGRATION.md</guid>
+    </item>
diff --git a/rss/all.xml b/rss/all.xml
index b5be0a9442f3b6..23cfb1bda3fa11 100644
--- a/rss/all.xml
+++ b/rss/all.xml
@@ -10,6 +10,9 @@ layout: null
     <atom:link href="{{ site.url }}/all.xml" rel="self" type="application/rss+xml" />
     <lastBuildDate>{{ site.time | date_to_rfc822 }}</lastBuildDate>
     {% assign eips = site.pages | sort: 'eip' %}
+
+    {% include rssnotice.xml %}
+
     {% for eip in eips %}
       <item>
         <title>{{ eip.title | xml_escape }}</title>
diff --git a/rss/erc-last-call.xml b/rss/erc-last-call.xml
index 5ba15cf2f0fbba..196b3336045a61 100644
--- a/rss/erc-last-call.xml
+++ b/rss/erc-last-call.xml
@@ -10,6 +10,7 @@ layout: null
     <atom:link href="{{ site.url }}/rss/last-call.xml" rel="self" type="application/rss+xml" />
     <lastBuildDate>{{ site.time | date_to_rfc822 }}</lastBuildDate>
     {% assign eips = site.pages | sort: 'eip' %}
+    {% include rssnotice.xml %}
     {% for eip in eips %}
       {% if eip.category == "ERC" %}
       {% if eip.status == "Last Call" %}
diff --git a/rss/erc.xml b/rss/erc.xml
index 48f58f598c8dfd..e5ea1ff89822dc 100644
--- a/rss/erc.xml
+++ b/rss/erc.xml
@@ -10,6 +10,7 @@ layout: null
     <atom:link href="{{ site.url }}/rss/erc.xml" rel="self" type="application/rss+xml" />
     <lastBuildDate>{{ site.time | date_to_rfc822 }}</lastBuildDate>
     {% assign eips = site.pages | sort: 'eip' %}
+    {% include rssnotice.xml %}
     {% for eip in eips %}
       {% if eip.category == "ERC" %}
       {% capture description %}
diff --git a/rss/last-call.xml b/rss/last-call.xml
index da06188ca24741..9497be65c23cac 100644
--- a/rss/last-call.xml
+++ b/rss/last-call.xml
@@ -10,6 +10,7 @@ layout: null
     <atom:link href="{{ site.url }}/rss/last-call.xml" rel="self" type="application/rss+xml" />
     <lastBuildDate>{{ site.time | date_to_rfc822 }}</lastBuildDate>
     {% assign eips = site.pages | sort: 'eip' %}
+    {% include rssnotice.xml %}
     {% for eip in eips %}
       {% if eip.status == "Last Call" %}
       {% capture description %}
diff --git a/rss/nonerc-last-call.xml b/rss/nonerc-last-call.xml
index 17f09393674463..52d1accfb723f0 100644
--- a/rss/nonerc-last-call.xml
+++ b/rss/nonerc-last-call.xml
@@ -10,6 +10,7 @@ layout: null
     <atom:link href="{{ site.url }}/rss/last-call.xml" rel="self" type="application/rss+xml" />
     <lastBuildDate>{{ site.time | date_to_rfc822 }}</lastBuildDate>
     {% assign eips = site.pages | sort: 'eip' %}
+    {% include rssnotice.xml %}
     {% for eip in eips %}
       {% unless eip.category == "ERC" %}
       {% if eip.status == "Last Call" %}
diff --git a/rss/nonerc.xml b/rss/nonerc.xml
index 327e47827ae964..0d0a2238904dc2 100644
--- a/rss/nonerc.xml
+++ b/rss/nonerc.xml
@@ -10,6 +10,7 @@ layout: null
     <atom:link href="{{ site.url }}/rss/last-call.xml" rel="self" type="application/rss+xml" />
     <lastBuildDate>{{ site.time | date_to_rfc822 }}</lastBuildDate>
     {% assign eips = site.pages | sort: 'eip' %}
+    {% include rssnotice.xml %}
     {% for eip in eips %}
       {% unless eip.category == "ERC" %}
       {% if eip.status == "Last Call" %}