diff --git a/.release-please-manifest.json b/.release-please-manifest.json
index 816df2d..37fcefa 100644
--- a/.release-please-manifest.json
+++ b/.release-please-manifest.json
@@ -1,3 +1,3 @@
 {
-  ".": "0.3.1"
+  ".": "1.0.0"
 }
diff --git a/CHANGELOG.md b/CHANGELOG.md
index b61b7b4..96f6608 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -1,5 +1,24 @@
 # Changelog
 
+## [1.0.0](https://github.com/bertrandgressier/tanstack-markdown-math/compare/v0.3.1...v1.0.0) (2026-10-04)
+
+
+### ⚠ BREAKING CHANGES
+
+* peer dependency minimum raised to @tanstack/markdown 1.0.0. How to migrate: run `pnpm add @tanstack/markdown@^1 tanstack-markdown-math@^1` (or the npm/yarn equivalent).
+* heading slugs change when headings contain inline math. How to migrate: regenerate any stored heading anchors, table-of-contents entries and deep links for headings that contain `$...$`.
+* default error output now uses English text and neutral CSS classes (`katex-error-badge` / `katex-error-box`). How to migrate: replace styling that targeted the old Tailwind classes or French strings with CSS for those classes, or pass a custom `render` option to keep your previous markup.
+* `protectMath` and `restoreMathChars` are deprecated (still exported). How to migrate: remove `protectMath(content)` calls before parsing; math with `_`, `*` and `\` now works without it.
+
+### Features
+
+* adopt @tanstack/markdown 1.0 inlineParser API ([#10](https://github.com/bertrandgressier/tanstack-markdown-math/issues/10)) ([a7f8538](https://github.com/bertrandgressier/tanstack-markdown-math/commit/a7f8538349bc4f267c83025778785328454f13f4))
+
+
+### Bug Fixes
+
+* support @tanstack/markdown 1.x ([#9](https://github.com/bertrandgressier/tanstack-markdown-math/issues/9)) ([45e604e](https://github.com/bertrandgressier/tanstack-markdown-math/commit/45e604eaa591a1b3f5ea245f871fb7f541a071a4))
+
 ## 0.3.1
 
 ### Changes
diff --git a/package.json b/package.json
index 4627e7d..766725f 100644
--- a/package.json
+++ b/package.json
@@ -1,6 +1,6 @@
 {
   "name": "tanstack-markdown-math",
-  "version": "0.3.1",
+  "version": "1.0.0",
   "description": "Math extension for @tanstack/markdown with KaTeX rendering",
   "license": "MIT",
   "author": "Bertrand GRESSIER",