diff --git a/.release-please-manifest.json b/.release-please-manifest.json
index 53b7bc9..895bf0e 100644
--- a/.release-please-manifest.json
+++ b/.release-please-manifest.json
@@ -1,3 +1,3 @@
 {
-  ".": "1.1.2"
+  ".": "2.0.0"
 }
diff --git a/CHANGELOG.md b/CHANGELOG.md
index 7074a07..5edf850 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -1,5 +1,22 @@
 # Changelog
 
+## [2.0.0](https://github.com/alex-feel/st-copy/compare/v1.1.2...v2.0.0) (2026-06-17)
+
+
+### ⚠ BREAKING CHANGES
+
+* Custom Components v2 requires Streamlit >= 1.56 and Python >= 3.10 (previously Streamlit >= 1.45 and Python >= 3.9). The component is now frameless (no iframe); the public copy_button() signature and return value are unchanged.
+
+### Features
+
+* migrate to Streamlit Custom Components v2 and fix horizontal layout ([1831952](https://github.com/alex-feel/st-copy/commit/1831952320b2b50962c134539b810901a0a4aeba)), closes [#27](https://github.com/alex-feel/st-copy/issues/27)
+
+
+### Bug Fixes
+
+* embed the frontend bundle inline instead of via an asset_dir manifest ([34478f8](https://github.com/alex-feel/st-copy/commit/34478f8956d16a1eb0aaf8d4aec58095290927e6))
+* include the frontend bundle as a wheel artifact instead of a force-include so editable builds don't require it ([d6f0036](https://github.com/alex-feel/st-copy/commit/d6f0036f8fd61b283444fa47d6d2cd514ada72c5))
+
 ## [1.1.2](https://github.com/alex-feel/st-copy/compare/v1.1.1...v1.1.2) (2025-06-15)
 
 
diff --git a/pyproject.toml b/pyproject.toml
index 54223f9..f1da3cf 100644
--- a/pyproject.toml
+++ b/pyproject.toml
@@ -1,6 +1,6 @@
 [project]
 name = "st-copy"
-version = "1.1.2"
+version = "2.0.0"
 description = "Streamlit copy‑to‑clipboard button component"
 readme = "README.md"
 authors = [{ name = "Aleksandr Filippov", email = "alex-feel.saga628@passmail.com" }]
diff --git a/src/st_copy/frontend/package.json b/src/st_copy/frontend/package.json
index 930b978..02b2529 100644
--- a/src/st_copy/frontend/package.json
+++ b/src/st_copy/frontend/package.json
@@ -1,7 +1,7 @@
 {
   "name": "frontend",
   "private": true,
-  "version": "1.1.2",
+  "version": "2.0.0",
   "type": "module",
   "scripts": {
     "dev": "vite build --watch",