diff --git a/.release-please-manifest.json b/.release-please-manifest.json
index 6b7b74c..da59f99 100644
--- a/.release-please-manifest.json
+++ b/.release-please-manifest.json
@@ -1,3 +1,3 @@
 {
-  ".": "0.3.0"
+  ".": "0.4.0"
 }
\ No newline at end of file
diff --git a/.stats.yml b/.stats.yml
index 4d62cd0..56f5a81 100644
--- a/.stats.yml
+++ b/.stats.yml
@@ -1,4 +1,4 @@
 configured_endpoints: 17
 openapi_spec_url: https://storage.googleapis.com/stainless-sdk-openapi-specs/cas-parser%2Fcas-parser-56b0f699c5437d9e5326626d35dfc972c17d01f12cb416c7f4854c8ea6d0e95e.yml
 openapi_spec_hash: 158f405c1880706266d83e6ff16b9d2f
-config_hash: 1af2e938c93ea4ec25fc633469072c43
+config_hash: 41c337f5cda03b13880617490f82bad0
diff --git a/CHANGELOG.md b/CHANGELOG.md
index 3b67c23..63556f4 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -1,5 +1,13 @@
 # Changelog
 
+## 0.4.0 (2026-02-14)
+
+Full Changelog: [v0.3.0...v0.4.0](https://github.com/CASParser/cas-parser-php/compare/v0.3.0...v0.4.0)
+
+### Features
+
+* **api:** manual updates ([77615d4](https://github.com/CASParser/cas-parser-php/commit/77615d4ba6dd799e8a34af6a11ec4047685ca0f3))
+
 ## 0.3.0 (2026-02-14)
 
 Full Changelog: [v0.2.0...v0.3.0](https://github.com/CASParser/cas-parser-php/compare/v0.2.0...v0.3.0)
diff --git a/README.md b/README.md
index 5de6243..e37f9da 100644
--- a/README.md
+++ b/README.md
@@ -6,6 +6,8 @@ It is generated with [Stainless](https://www.stainless.com/).
 
 ## Documentation
 
+The REST API documentation can be found on [docs.casparser.in](https://docs.casparser.in).
+
 ## Installation
 
 To use this package, install via Composer by adding the following to your application's `composer.json`:
diff --git a/src/Version.php b/src/Version.php
index e05c34e..cb6f277 100644
--- a/src/Version.php
+++ b/src/Version.php
@@ -5,5 +5,5 @@
 namespace CasParser;
 
 // x-release-please-start-version
-const VERSION = '0.3.0';
+const VERSION = '0.4.0';
 // x-release-please-end