diff --git a/addons/mail/static/src/scss/thread.scss b/addons/mail/static/src/scss/thread.scss
index 81f6862ca9f..8a0b0b08858 100644
--- a/addons/mail/static/src/scss/thread.scss
+++ b/addons/mail/static/src/scss/thread.scss
@@ -171,6 +171,7 @@
             }
             img {
                 max-width: 100%;
+                height: auto;
             }
 
             .o_mail_body_long {
diff --git a/addons/website_blog/controllers/main.py b/addons/website_blog/controllers/main.py
index 51a2deb3158..6f02268afc0 100644
--- a/addons/website_blog/controllers/main.py
+++ b/addons/website_blog/controllers/main.py
@@ -109,6 +109,9 @@ class WebsiteBlog(http.Controller):
         # retrocompatibility to accept tag as slug
         active_tag_ids = tag and [int(unslug(t)[1]) for t in tag.split(',')] or []
         if active_tag_ids:
+            fixed_tag_slug = ",".join(slug(t) for t in request.env['blog.tag'].browse(active_tag_ids))
+            if fixed_tag_slug != tag:
+                return request.redirect(request.httprequest.full_path.replace("/tag/%s/" % tag, "/tag/%s/" % fixed_tag_slug, 1), 301)
             domain += [('tag_ids', 'in', active_tag_ids)]
         if blog:
             domain += [('blog_id', '=', blog.id)]
diff --git a/addons/website_blog/views/website_blog_templates.xml b/addons/website_blog/views/website_blog_templates.xml
index 6623de92ebc..0d012ce49b4 100644
--- a/addons/website_blog/views/website_blog_templates.xml
+++ b/addons/website_blog/views/website_blog_templates.xml
@@ -164,7 +164,7 @@
 
                             <!-- To display tags //no options -->
                             <t t-foreach="blog_post.tag_ids" t-as="one_tag">
-                                <a class="mr8" t-attf-href="#{blog_url(tag=one_tag.id, date_begin=False, date_end=False)}" t-esc="one_tag.name"/>
+                                <a class="mr8" t-attf-href="#{blog_url(tag=slug(one_tag), date_begin=False, date_end=False)}" t-esc="one_tag.name"/>
                             </t>
                             <div class="o_sharing_links">
                                 <a class="fa fa-twitter-square o_twitter" aria-label="Twitter" title="Twitter"></a>
@@ -249,7 +249,7 @@
                     <p class="post-meta text-muted text-center" t-if="len(blog_post.tag_ids)">
                         <span class="fa fa-tags" role="img" aria-label="Tags" title="Tags"/>
                         <t t-foreach="blog_post.tag_ids" t-as="one_tag">
-                            <a class="badge badge-primary mr8" t-attf-href="#{blog_url(tag=one_tag.id)}" t-esc="one_tag.name"/>
+                            <a class="badge badge-primary mr8" t-attf-href="#{blog_url(tag=slug(one_tag))}" t-esc="one_tag.name"/>
                         </t>
                     </p>
                     <div t-if="'cover_full' in blog_post_cover_properties.get('resize_class', '')" id="blog_angle_down">
@@ -393,7 +393,7 @@
             <t t-foreach="tags" t-as="tag">
                 <t t-if="tag.post_ids">
                     <li class="nav-item">
-                        <a t-attf-href="#{blog_url(tag=tags_list(active_tag_ids, tag.id))}" t-attf-class="nav-link#{tag.id in active_tag_ids and ' active' or ''}">
+                        <a t-att-rel="'nofollow' if active_tag_ids else None" t-attf-href="#{blog_url(tag=tags_list(active_tag_ids, tag.id))}" t-attf-class="nav-link#{tag.id in active_tag_ids and ' active' or ''}">
                             <span t-field="tag.name"/>
                         </a>
                     </li>
@@ -443,10 +443,10 @@
                 <ul t-attf-class="blog_post_year collapse nav nav-pills flex-column #{not date and year_index == 0 and 'in'}" t-att-id="'b_' + year" role="menu">
                     <t t-foreach="nav_list[year]" t-as="months">
                         <li t-if="months['date_begin'] == date" class="nav-item">
-                            <a role="menuitem" t-ignore="True" t-attf-href="#{blog_url(date_begin=False, date_end=False)}" class="nav-link active"><t t-esc="months['month']"/><span class="float-right badge badge-pill" t-esc="months['post_date_count']"/></a>
+                            <a role="menuitem" rel="nofollow" t-ignore="True" t-attf-href="#{blog_url(date_begin=False, date_end=False)}" class="nav-link active"><t t-esc="months['month']"/><span class="float-right badge badge-pill" t-esc="months['post_date_count']"/></a>
                         </li>
                         <li t-else="1" class="nav-item">
-                            <a role="menuitem" t-ignore="True" t-attf-href="#{blog_url(date_begin=months['date_begin'], date_end=months['date_end'])}" class="nav-link"><t t-esc="months['month']"/><span class="float-right badge badge-pill" t-esc="months['post_date_count']"/></a>
+                            <a role="menuitem" rel="nofollow" t-ignore="True" t-attf-href="#{blog_url(date_begin=months['date_begin'], date_end=months['date_end'])}" class="nav-link"><t t-esc="months['month']"/><span class="float-right badge badge-pill" t-esc="months['post_date_count']"/></a>
                         </li>
                     </t>
                 </ul>
diff --git a/doc/reference/cmdline.rst b/doc/reference/cmdline.rst
index 83df644f150..0c5b8e6749c 100644
--- a/doc/reference/cmdline.rst
+++ b/doc/reference/cmdline.rst
@@ -214,6 +214,12 @@ database
     when creating new databases from the database-management screens, use the
     specified `template database`_. Defaults to ``template0``.
 
+.. option:: --pg_path </path/to/postgresql/binaries>
+
+    Path to the PostgreSQL binaries that are used by the database manager to
+    dump and restore databases. You have to specify this option only if these
+    binaries are located in a non-standard directory.
+
 .. option:: --no-database-list
 
     Suppresses the ability to list databases available on the system