Bookup 0.5.20.5.2

5 files changed, 19 insertions, 6 deletions

diff --git a/ChangeLog.md b/ChangeLog.md
index 9472494..8558e6b 100644
--- a/ChangeLog.md
+++ b/ChangeLog.md
@@ -1,5 +1,11 @@
 # ChangeLog
 
+## v0.5.2 - 2025-11-22
+
+* [x] Link the change log in the HTML frontmatter.
+* [x] Optionally add a small reference to the Bookup website in HTML
+      frontmatter.
+
 ## v0.5.1 - 2025-11-22
 
 * [x] Minor fixes in the RSS and Atom generation.
diff --git a/TODO.md b/TODO.md
index b225820..afdba99 100644
--- a/TODO.md
+++ b/TODO.md
@@ -61,8 +61,7 @@
   * [ ] Suport for a `BASE_URL` environment variable?
         It would be applied as a template variable in `%%base_url%%` placeholers,
         allowing the compile material to have links among themselves.
-  * [ ] Optionally add a small reference to the Bookup website in the book
-        frontmatter?
+  * [ ] Add a small reference to the Bookup website in PDF book frontmatter.
 
 ## Documentation
 
diff --git a/_changes.yml b/_changes.yml
index 4e3bc32..4352124 100644
--- a/_changes.yml
+++ b/_changes.yml
@@ -4,6 +4,14 @@ changelog: Changelog
 version: Version
 help: This section can be used to register changes in the text versions.
 versions:
+  - id: 0.5.2
+    date_atom: 2025-11-22T23:00:00-03:00
+    date_rss: 22 Sep 2025 23:00:00 -0300
+    date_markdown: 2025-11-22
+    summary: |
+      * Link the change log in the HTML frontmatter.
+      * Add a small reference to the Bookup website in the HTML frontmatter.
+
   - id: 0.5.1
     date_atom: 2025-11-22T22:50:00-03:00
     date_rss: 22 Sep 2025 22:50:00 -0300
diff --git a/structure/book/en/00-preamble.md b/structure/book/en/00-preamble.md
index 2db371a..e83f82b 100644
--- a/structure/book/en/00-preamble.md
+++ b/structure/book/en/00-preamble.md
@@ -21,13 +21,13 @@ if (knitr::is_html_output()) {
   cat(readLines('.metadata/revision.txt'), sep='\n')
   cat('</em></strong> - compiled at <strong><em>')
   cat(readLines('.metadata/date.txt'), sep='\n')
-  cat('</em></strong>.')
+  cat('</em></strong> using <a href="https://bookup.fluxo.info">Bookup</a>.')
   cat('<br/>')
   cat('Older versions available in the <a href="/archive">archive</a>.')
   cat('<br/>')
   cat('Follow updates in this book: <a href="/rss.xml">RSS</a> / <a href="/atom.xml">Atom</a>.')
   cat('<br/>')
-  cat('Notebook available <a href="/notes">here</a>.')
+  cat('Notebook available <a href="/notes">here</a>, with a changelog <a href="/notes/changelog.html">here</a>.')
   cat('<br/><br/>')
   cat(readLines('snippets/project.txt'))
   cat(' - ')
diff --git a/structure/book/pt-br/00-preamble.md b/structure/book/pt-br/00-preamble.md
index 6e92a1c..a79c9ec 100644
--- a/structure/book/pt-br/00-preamble.md
+++ b/structure/book/pt-br/00-preamble.md
@@ -21,13 +21,13 @@ if (knitr::is_html_output()) {
   cat(readLines('.metadata/revision.txt'), sep='\n')
   cat('</em></strong> - compilada em <strong><em>')
   cat(readLines('.metadata/date.txt'), sep='\n')
-  cat('</em></strong>.')
+  cat('</em></strong> usando <a href="https://bookup.fluxo.info">Bookup</a>.')
   cat('<br/>')
   cat('Versões anteriores disponíveis no <a href="/archive">arquivo</a>.')
   cat('<br/>')
   cat('Acompanhe as atualizações deste livro: <a href="/rss.xml">RSS</a> / <a href="/atom.xml">Atom</a>.')
   cat('<br/>')
-  cat('Caderno de anotações disponível <a href="/notes">aqui</a>.')
+  cat('Caderno de anotações disponível <a href="/notes">aqui</a>, com um registro de mudanças <a href="/notes/changelog.html>aqui</a>.')
   cat('<br/><br/>')
   cat(readLines('snippets/project.txt'))
   cat(' - ')