diff --git a/.gitignore b/.gitignore
index 3a9a8a6..7b9e168 100644
--- a/.gitignore
+++ b/.gitignore
@@ -4,6 +4,9 @@
 !.editorconfig
 !.nojekyll
 !.travis.yml
+!.husky
+!.commitlintrc.json
+!.versionrc.json
 
 # bundler cache
 _site
diff --git a/Gemfile b/Gemfile
index 362cb64..e2160e5 100644
--- a/Gemfile
+++ b/Gemfile
@@ -2,7 +2,7 @@
 
 source "https://rubygems.org"
 
-gem "jekyll-theme-chirpy", "~> 5.1", ">= 5.1.0"
+gem "jekyll-theme-chirpy", "~> 5.2", ">= 5.2.0"
 
 group :test do
   gem "html-proofer", "~> 3.18"
diff --git a/_config.yml b/_config.yml
index cfe3c78..5e124ca 100644
--- a/_config.yml
+++ b/_config.yml
@@ -115,6 +115,9 @@ assets:
     # only works if `assets.self_host.enabled` is 'true'
     env:          # [development|production]
 
+pwa:
+  enabled: true   # the option for PWA feature
+
 paginate: 10
 
 # ------------ The following options are not recommended to be modified ------------------
diff --git a/_data/locales/en.yml b/_data/locales/en.yml
index 1221776..14394a6 100644
--- a/_data/locales/en.yml
+++ b/_data/locales/en.yml
@@ -20,7 +20,7 @@ tabs:
 search:
   hint: search
   cancel: Cancel
-  no_results: Oops! No result founds.
+  no_results: Oops! No results found.
 
 panel:
   lastmod: Recently Updated
@@ -44,9 +44,10 @@ meta: Powered by :PLATFORM with :THEME theme.
 
 not_found:
   statment: Sorry, we've misplaced that URL or it's pointing to something that doesn't exist.
-  hint_template: :HEAD_BAK to try finding it again, or search for it on the :ARCHIVES_PAGE.
-  head_back: Head back Home
-  archives_page: Archives page
+
+notification:
+  update_found: A new version of content is available.
+  update: Update
 
 # ----- Posts related labels -----
 
@@ -74,5 +75,9 @@ post:
 
 # categories page
 categories:
-  category_measure: categories
-  post_measure: posts
+  category_measure:
+    singular: category
+    plural: categories
+  post_measure:
+    singular: post
+    plural: posts
diff --git a/_data/locales/es-ES.yml b/_data/locales/es-ES.yml
new file mode 100644
index 0000000..ee3a20f
--- /dev/null
+++ b/_data/locales/es-ES.yml
@@ -0,0 +1,79 @@
+# The layout text of site
+
+# ----- Commons label -----
+
+layout:
+  post: Entrada
+  category: Categoría
+  tag: Etiqueta
+
+# The tabs of sidebar
+tabs:
+  # format: <filename_without_extension>: <value>
+  home: Inicio
+  categories: Categorías
+  tags: Etiquetas
+  archives: Archivo
+  about: Acerca de
+
+# the text displayed in the search bar & search results
+search:
+  hint: Buscar
+  cancel: Cancelar
+  no_results: ¡Oops! No se encuentran resultados.
+
+panel:
+  lastmod: Actualizado recientemente
+  trending_tags: Etiquetas populares
+  toc: Contenido
+
+copyright:
+  # Shown at the bottom of the post
+  license:
+    template: Esta entrada está licenciada bajo :LICENSE_NAME por el autor.
+    name: CC BY 4.0
+    link: https://creativecommons.org/licenses/by/4.0/
+
+  # Displayed in the footer
+  brief: Algunos derechos reservados.
+  verbose: >-
+    Salvo que se indique explícitamente, las entradas de este blog están licenciadas
+    bajo la Creative Commons Attribution 4.0 International (CC BY 4.0) License por el autor.
+
+meta: Hecho con :PLATFORM usando el tema :THEME.
+
+not_found:
+  statment: Lo sentimos, hemos perdido esa URL o apunta a algo que no existe.
+
+notification:
+  update_found: Hay una nueva versión de contenido disponible.
+  update: Actualizar
+
+# ----- Posts related labels -----
+
+post:
+  written_by: Por
+  posted: Publicado
+  updated: Actualizado
+  words: palabras
+  pageview_measure: visitas
+  read_time:
+    unit: min
+    prompt: ' de lectura'
+  relate_posts: Lecturas adicionales
+  share: Compartir
+  button:
+    next: Nuevo
+    previous: Anterior
+    copy_code:
+      succeed: ¡Copiado!
+    share_link:
+      title: Copiar enlace
+      succeed: ¡Enlace copiado!
+  # pinned prompt of posts list on homepage
+  pin_prompt: Fijado
+
+# categories page
+categories:
+  category_measure: categorias
+  post_measure: entradas
diff --git a/_data/locales/fr-FR.yml b/_data/locales/fr-FR.yml
new file mode 100644
index 0000000..0d29a87
--- /dev/null
+++ b/_data/locales/fr-FR.yml
@@ -0,0 +1,79 @@
+# The layout text of site
+
+# ----- Commons label -----
+
+layout:
+  post: Post
+  category: Catégorie
+  tag: Tag
+
+# The tabs of sidebar
+tabs:
+  # format: <filename_without_extension>: <value>
+  home: Accueil
+  categories: Catégories
+  tags: Tags
+  archives: Archives
+  about: A propos de
+
+# the text displayed in the search bar & search results
+search:
+  hint: recherche
+  cancel: Annuler
+  no_results: Oups ! Aucun résultat trouvé.
+
+panel:
+  lastmod: Récemment mis à jour
+  trending_tags: Tags tendance
+  toc: Contenu
+
+copyright:
+  # Shown at the bottom of the post
+  license:
+    template: Cet article est sous licence :LICENSE_NAME par l'auteur.
+    name: CC BY 4.0
+    link: https://creativecommons.org/licenses/by/4.0/
+
+  # Displayed in the footer
+  brief: Certains droits réservés.
+  verbose: >-
+    Sauf mention contraire, les articles de ce site sont publiés sous licence
+    sous la licence Creative Commons Attribution 4.0 International (CC BY 4.0) par l'auteur.
+
+meta: Propulsé par :PLATFORM avec le thème :THEME
+
+not_found:
+  statment: Désolé, nous avons égaré cette URL ou elle pointe vers quelque chose qui n'existe pas.
+
+notification:
+  update_found: Une nouvelle version du contenu est disponible.
+  update: Mise à jour
+
+# ----- Posts related labels -----
+
+post:
+  written_by: Par
+  posted: Posté
+  updated: Mis à jour
+  words: mots
+  pageview_measure: vues
+  read_time:
+    unit: min
+    prompt: lire
+  relate_posts: Autres lectures
+  share: Partager
+  button:
+    next: Plus récent
+    previous: Plus ancien
+    copy_code:
+      succeed: Copié !
+    share_link:
+      title: Copier le lien
+      succeed: Lien copié avec succès !
+  # pinned prompt of posts list on homepage
+  pin_prompt: Épinglé
+
+# categories page
+categories:
+  category_measure: catégories
+  post_measure: posts
diff --git a/_data/locales/id-ID.yml b/_data/locales/id-ID.yml
index 37ad8ea..59ec661 100644
--- a/_data/locales/id-ID.yml
+++ b/_data/locales/id-ID.yml
@@ -44,9 +44,10 @@ meta: Didukung oleh :PLATFORM dengan tema :THEME.
 
 not_found:
   statment: Maaf, kami gagal menemukan URL itu atau memang mengarah ke sesuatu yang tidak ada.
-  hint_template: :HEAD_BAK untuk mencoba mencari kembali, atau cari di :ARCHIVES_PAGE.
-  head_back: Kembali ke Beranda
-  archives_page: Halaman Arsip
+
+notification:
+  update_found: Versi konten baru tersedia.
+  update: Perbarui
 
 # ----- Posts related labels -----
 
diff --git a/_data/locales/ko-KR.yml b/_data/locales/ko-KR.yml
index 4bfd318..2fb9391 100644
--- a/_data/locales/ko-KR.yml
+++ b/_data/locales/ko-KR.yml
@@ -44,9 +44,10 @@ meta: Powered by :PLATFORM with :THEME theme.
 
 not_found:
   statment: 해당 URL은 존재하지 않습니다.
-  hint_template: :HEAD_BAK을 눌러 다시 찾거나 :ARCHIVES_PAGE에서 검색해 주세요.
-  head_back: 홈으로 돌아가기
-  archives_page: 아카이브 페이지
+
+notification:
+  update_found: 새 버전의 콘텐츠를 사용할 수 있습니다.
+  update: 업데이트
 
 # ----- Posts related labels -----
 
diff --git a/_data/locales/my-MM.yml b/_data/locales/my-MM.yml
index 6ad9e28..9990c76 100644
--- a/_data/locales/my-MM.yml
+++ b/_data/locales/my-MM.yml
@@ -44,9 +44,10 @@ meta: Powered by :PLATFORM with :THEME theme.
 
 not_found:
   statment: ဝမ်းနည်းပါသည်၊ ကျွန်ုပ်တို့သည် အဆိုပါ URL ကို မှားယွင်းစွာ နေရာချထားခြင်း သို့မဟုတ် ၎င်းသည် မရှိသောအရာကို ညွှန်ပြနေပါသည်။
-  hint_template: ၎င်းကို ထပ်မံရှာဖွေရန် :HEAD_BAK , သို့မဟုတ် :ARCHIVES_PAGE တွင်ရှာပါ။
-  head_back: အဓိကစာမျက်နှာသို့ပြန်သွားပါ။
-  archives_page: မှတ်တမ်း​တိုက် စာမျက်နှာ။
+
+notification:
+  update_found: အကြောင်းအရာဗားရှင်းအသစ်ကို ရနိုင်ပါပြီ။
+  update: အပ်ဒိတ်
 
 # ----- Posts related labels -----
 
diff --git a/_data/locales/pt-BR.yml b/_data/locales/pt-BR.yml
new file mode 100644
index 0000000..59209ae
--- /dev/null
+++ b/_data/locales/pt-BR.yml
@@ -0,0 +1,79 @@
+# The layout text of site
+
+# ----- Commons label -----
+
+layout:
+  post: Post
+  category: Categoria
+  tag: Tag
+
+# The tabs of sidebar
+tabs:
+  # format: <filename_without_extension>: <value>
+  home: Home
+  categories: Categorias
+  tags: Tags
+  archives: Arquivos
+  about: Sobre
+
+# the text displayed in the search bar & search results
+search:
+  hint: Buscar
+  cancel: Cancelar
+  no_results: Oops! Nenhum resultado encontrado.
+
+panel:
+  lastmod: Atualizados recentemente
+  trending_tags: Trending Tags
+  toc: Conteúdo
+
+copyright:
+  # Shown at the bottom of the post
+  license:
+    template: Esta postagem está licenciada sob :LICENSE_NAME pelo autor.
+    name: CC BY 4.0
+    link: https://creativecommons.org/licenses/by/4.0/
+
+  # Displayed in the footer
+  brief: Alguns direitos reservados.
+  verbose: >-
+    Exceto onde indicado de outra forma, as postagens do blog neste site são licenciadas sob a 
+    Creative Commons Attribution 4.0 International (CC BY 4.0) License pelo autor.
+
+meta: Feito com :PLATFORM usando o tema :THEME.
+
+not_found:
+  statment: Desculpe, a página não foi encontrada.
+
+notification:
+  update_found: Uma nova versão do conteúdo está disponível.
+  update: atualização
+
+# ----- Posts related labels -----
+
+post:
+  written_by: Por
+  posted: Postado em
+  updated: Atualizado
+  words: palavras
+  pageview_measure: visualizações
+  read_time:
+    unit: min
+    prompt: " de leitura"
+  relate_posts: Leia também
+  share: Compartilhar
+  button:
+    next: Próximo
+    previous: Anterior
+    copy_code:
+      succeed: Copiado!
+    share_link:
+      title: Copie o link
+      succeed: Link copiado com sucesso!
+  # pinned prompt of posts list on homepage
+  pin_prompt: Fixado
+
+# categories page
+categories:
+  category_measure: categorias
+  post_measure: posts
diff --git a/_data/locales/ru-RU.yml b/_data/locales/ru-RU.yml
index 1a538fe..3cd937c 100644
--- a/_data/locales/ru-RU.yml
+++ b/_data/locales/ru-RU.yml
@@ -44,9 +44,10 @@ meta: Powered by :PLATFORM with :THEME theme.
 
 not_found:
   statment: Извините, эта ссылка указывает на ресурс который не существует.
-  hint_template: :HEAD_BAK чтобы снова осуществить поиск, или поищите :ARCHIVES_PAGE.
-  head_back: Вернитесь на домашнюю страницу
-  archives_page: архиве
+
+notification:
+  update_found: Доступна новая версия контента.
+  update: Обновлять
 
 # ----- Posts related labels -----
 
diff --git a/_data/locales/uk-UA.yml b/_data/locales/uk-UA.yml
index c06faaf..6925e42 100644
--- a/_data/locales/uk-UA.yml
+++ b/_data/locales/uk-UA.yml
@@ -44,9 +44,10 @@ meta: Powered by :PLATFORM with :THEME theme.
 
 not_found:
   statment: Вибачте, це посилання вказує на ресурс, що не існує.
-  hint_template: :HEAD_BAK аби здійснити пошук, або пошукайте в :ARCHIVES_PAGE.
-  head_back: Поверніться на домашню сторінку
-  archives_page: архіві
+
+notification:
+  update_found: Доступна нова версія вмісту.
+  update: Оновлення
 
 # ----- Posts related labels -----
 
diff --git a/_data/locales/vi-VN.yml b/_data/locales/vi-VN.yml
new file mode 100644
index 0000000..592000d
--- /dev/null
+++ b/_data/locales/vi-VN.yml
@@ -0,0 +1,77 @@
+# The layout text of site
+
+# ----- Commons label -----
+
+layout:
+  post: Bài viết
+  category: Danh mục
+  tag: Thẻ
+
+# The tabs of sidebar
+tabs:
+  # format: <filename_without_extension>: <value>
+  home: Trang chủ
+  categories: Các danh mục
+  tags: Các thẻ
+  archives: Lưu trữ
+  about: Giới thiệu
+
+# the text displayed in the search bar & search results
+search:
+  hint: tìm kiếm
+  cancel: Hủy
+  no_results: Không có kết quả tìm kiếm.
+
+panel:
+  lastmod: Mới cập nhật
+  trending_tags: Các thẻ thịnh hành
+  toc: Mục lục
+
+copyright:
+  # Shown at the bottom of the post
+  license:
+    template: Bài viết này được cấp phép bởi tác giả theo giấy phép :LICENSE_NAME.
+    name: CC BY 4.0
+    link: https://creativecommons.org/licenses/by/4.0/
+
+  # Displayed in the footer
+  brief: Một số quyền được bảo lưu.
+  verbose: >-
+    Trừ khi có ghi chú khác, các bài viết đăng trên trang này được cấp phép bởi tác giả theo giấy phép Creative Commons Attribution 4.0 International (CC BY 4.0).
+meta: Trang web này được tạo bởi :PLATFORM với chủ đề :THEME.
+
+not_found:
+  statment: Xin lỗi, chúng tôi đã đặt nhầm URL hoặc đường dẫn trỏ đến một trang nào đó không tồn tại.
+
+notification:
+  update_found: Đã có phiên bản mới của nội dung.
+  update: Cập nhật
+
+# ----- Posts related labels -----
+
+post:
+  written_by: Viết bởi
+  posted: Đăng lúc
+  updated: Cập nhật lúc
+  words: từ
+  pageview_measure: lượt xem
+  read_time:
+    unit: phút
+    prompt: đọc
+  relate_posts: Bài viết liên quan
+  share: Chia sẻ
+  button:
+    next: Mới hơn
+    previous: Cũ hơn
+    copy_code:
+      succeed: Đã sao chép!
+    share_link:
+      title: Sao chép đường dẫn
+      succeed: Đã sao chép đường dẫn thành công!
+  # pinned prompt of posts list on homepage
+  pin_prompt: Bài ghim
+
+# categories page
+categories:
+  category_measure: danh mục
+  post_measure: bài viết
diff --git a/_data/locales/zh-CN.yml b/_data/locales/zh-CN.yml
index 880a47e..42fcfbc 100644
--- a/_data/locales/zh-CN.yml
+++ b/_data/locales/zh-CN.yml
@@ -43,9 +43,10 @@ meta: 本站由 :PLATFORM 生成，采用 :THEME 主题。
 
 not_found:
   statment: 抱歉，我们放错了该 URL，或者它指向了不存在的内容。
-  hint_template: :HEAD_BAK尝试再次查找它，或在:ARCHIVES_PAGE上搜索它。
-  head_back: 返回主页
-  archives_page: 归档页面
+
+notification:
+  update_found: 发现新版本的内容。
+  update: 更新
 
 # ----- Posts related labels -----
 
diff --git a/tools/deploy.sh b/tools/deploy.sh
index 14b88eb..5baba00 100755
--- a/tools/deploy.sh
+++ b/tools/deploy.sh
@@ -77,7 +77,7 @@ setup_gh() {
     _no_pages_branch=true
     git checkout -b "$PAGES_BRANCH"
   else
-    git checkout "$PAGES_BRANCH"
+    git checkout -f "$PAGES_BRANCH"
   fi
 }