diff --git a/content/CHANGELOG.md b/content/CHANGELOG.md
new file mode 100644
index 000000000..139b88cfd
--- /dev/null
+++ b/content/CHANGELOG.md
@@ -0,0 +1,18 @@
+# Version Changelogs & Updates
+
+## 📝 Release v3.1.20240830 (2024-08-30)
+
+#### ◉ Chapter update
+
+- [Time Duration](https://dasarpemrogramangolang.novalagung.com/A-time-duration.html)
+    - Perbaikan kesalahan pada `time.Duration`
+- Perbaikan narasi konten semua chapter di section A
+- Perbaikan narasi konten semua chapter di section B
+
+#### ◉ General update
+
+- Penerapan manual versioning
+- Penambahan halaman changelogs
+- Penambahan halaman download file
+- Improvisasi keyword untuk keperluan SEO
+- Penyesuaian resolusi gambar konten
diff --git a/content/README.md b/content/README.md
index 565cc087f..1570b229c 100644
--- a/content/README.md
+++ b/content/README.md
@@ -21,15 +21,15 @@ Ada total sekitar <b>120 chapter</b> yang dibahas dalam website/ebook ini. Kumpu
 	</li>
 </ol>
 
-Versi e-book: **((VERSION))**, dan versi Go **1.22**.
+Versi e-book: **v3.1.20240830**, dan versi Go **1.22**.
 
 ## Download File E-book (pdf, epub, mobi)
 
 Versi ebook bisa di-download dalam bentuk file via link berikut:
 
-- [PDF](https://github.com/novalagung/dasarpemrogramangolang/raw/ebooks/dasarpemrogramangolang.pdf?v=((VERSION)))
-- [Epub](https://github.com/novalagung/dasarpemrogramangolang/raw/ebooks/dasarpemrogramangolang.epub?v=((VERSION)))
-- [Mobi](https://github.com/novalagung/dasarpemrogramangolang/raw/ebooks/dasarpemrogramangolang.mobi?v=((VERSION)))
+- [PDF](https://github.com/novalagung/dasarpemrogramangolang/raw/ebooks/dasarpemrogramangolang.pdf?v=v3.1.20240830)
+- [Epub](https://github.com/novalagung/dasarpemrogramangolang/raw/ebooks/dasarpemrogramangolang.epub?v=v3.1.20240830)
+- [Mobi](https://github.com/novalagung/dasarpemrogramangolang/raw/ebooks/dasarpemrogramangolang.mobi?v=v3.1.20240830)
 
 Untuk mendapatkan konten buku yang paling update, silakan baca langsung versi web secara online atau download ulang e-book versi terbaru.
 
diff --git a/content/SUMMARY.md b/content/SUMMARY.md
index 46cf1a6d7..2f6d90ac3 100644
--- a/content/SUMMARY.md
+++ b/content/SUMMARY.md
@@ -1,7 +1,8 @@
 # Summary
 
 * [Dasar Pemrograman Golang](README.md)
-* [Download versi PDF](https://github.com/novalagung/dasarpemrogramangolang/raw/ebooks/dasarpemrogramangolang.pdf)
+* [Version Changelogs & Updates](CHANGELOG.md)
+* [Download Ebook](download-ebook.md)
 * [Author & Contributors](CONTRIBUTING.md)
 * [Lisensi dan Distribusi Konten](DISTRIBUTION.md)
 
diff --git a/content/download-ebook.md b/content/download-ebook.md
new file mode 100644
index 000000000..bd5ab62ee
--- /dev/null
+++ b/content/download-ebook.md
@@ -0,0 +1,7 @@
+# Download Ebook
+
+Ebook Dasar Pemrograman Golang bisa di-download dalam bentuk file, silakan gunakan link berikut:
+
+- [PDF](https://github.com/novalagung/dasarpemrogramangolang/raw/ebooks/dasarpemrogramangolang.pdf?v=v3.1.20240830)
+- [Epub](https://github.com/novalagung/dasarpemrogramangolang/raw/ebooks/dasarpemrogramangolang.epub?v=v3.1.20240830)
+- [Mobi](https://github.com/novalagung/dasarpemrogramangolang/raw/ebooks/dasarpemrogramangolang.mobi?v=v3.1.20240830)