diff --git a/.api-version b/.api-version
index da15618101..42ed2d7782 100644
--- a/.api-version
+++ b/.api-version
@@ -1 +1 @@
-8.1.0
\ No newline at end of file
+8.1.1
\ No newline at end of file
diff --git a/antora.yml b/antora.yml
index 27557c9e3c..4b79d5d160 100644
--- a/antora.yml
+++ b/antora.yml
@@ -26,7 +26,7 @@ asciidoc:
     # product variables
     productname: TinyMCE
     productmajorversion: 8
-    productminorversion: '8.1.0'
+    productminorversion: '8.1'
     ##### product name in codeblock
     prodnamecode: tinymce
     #### more names
diff --git a/modules/ROOT/nav.adoc b/modules/ROOT/nav.adoc
index 392295c0e8..806321ad31 100644
--- a/modules/ROOT/nav.adoc
+++ b/modules/ROOT/nav.adoc
@@ -415,6 +415,9 @@
 ** xref:tinymce-and-cors.adoc[Cross-Origin Resource Sharing (CORS)]
 * Release information
 ** xref:release-notes.adoc[Release notes for {productname}]
+*** {productname} 8.1.1
+**** xref:8.1.1-release-notes.adoc#overview[Overview]
+**** xref:8.1.1-release-notes.adoc#bug-fixes[Bug fix]
 *** {productname} 8.1.0
 **** xref:8.1.0-release-notes.adoc#overview[Overview]
 **** xref:8.1.0-release-notes.adoc#new-premium-plugin[New Premium plugin]
diff --git a/modules/ROOT/pages/8.1.1-release-notes.adoc b/modules/ROOT/pages/8.1.1-release-notes.adoc
new file mode 100644
index 0000000000..0ab561423d
--- /dev/null
+++ b/modules/ROOT/pages/8.1.1-release-notes.adoc
@@ -0,0 +1,25 @@
+= {productname} {release-version}
+:release-version: 8.1.1
+:navtitle: {productname} {release-version}
+:description: Release notes for {productname} {release-version}
+:keywords: releasenotes, bugfixes
+:page-toclevels: 1
+
+include::partial$misc/admon-releasenotes-for-stable.adoc[]
+
+
+[[overview]]
+== Overview
+
+{productname} {release-version} was released for {enterpriseversion} and {cloudname} on Wednesday, September 17^th^, 2025. These release notes provide an overview of the changes for {productname} {release-version}, including:
+
+* xref:bug-fix[Bug fix]
+
+
+[[bug-fix]]
+== Bug fix
+
+=== Reset rules for CSS were not applying correctly.
+// #TINY-12920
+
+{productname} {release-version} fixes an issue where CSS reset rules were not applied correctly to the editor UI. On pages using site-wide reset styles or generic element selectors, external CSS could override the editor's interface styles, leading to visual inconsistencies and, in some cases, a broken editor layout. This release reverts problematic internal CSS so that the reset rules are applied as intended, preventing conflicts with existing page styles and ensuring the editor UI renders reliably across integrations.
diff --git a/modules/ROOT/pages/changelog.adoc b/modules/ROOT/pages/changelog.adoc
index da89c6a19f..c702529f8a 100644
--- a/modules/ROOT/pages/changelog.adoc
+++ b/modules/ROOT/pages/changelog.adoc
@@ -5,6 +5,12 @@
 NOTE: This is the {productname} Community version changelog. For information about the latest {cloudname} or {enterpriseversion} Release, see: xref:release-notes.adoc[{productname} Release Notes].
 
 
+== xref:8.1.1-release-notes.adoc[8.1.1 - 2025-09-17]
+
+### Fixed
+* Reset rules for CSS were not applying correctly.
+// #TINY-12920
+
 == xref:8.1.0-release-notes.adoc[8.1.0 - 2025-09-17]
 
 ### Improved
diff --git a/modules/ROOT/pages/release-notes.adoc b/modules/ROOT/pages/release-notes.adoc
index 7b393f880b..1526348e5c 100644
--- a/modules/ROOT/pages/release-notes.adoc
+++ b/modules/ROOT/pages/release-notes.adoc
@@ -9,6 +9,12 @@ This section lists the releases for {productname} {productmajorversion} and the
 [cols="1,1"]
 |===
 
+a|
+[.lead]
+xref:8.1.1-release-notes.adoc#overview[{productname} 8.1.1]
+
+Release notes for {productname} 8.1.1
+
 a|
 [.lead]
 xref:8.1.0-release-notes.adoc#overview[{productname} 8.1.0]