diff --git a/localization/rssguard_cs.ts b/localization/rssguard_cs.ts
index b57869b80..292ad3ef4 100644
--- a/localization/rssguard_cs.ts
+++ b/localization/rssguard_cs.ts
@@ -7,7 +7,7 @@
     </message>
     <message>
         <source>(feed)</source>
-        <translation>(zdroj)</translation>
+        <translation>(kanál)</translation>
     </message>
 </context>
 <context>
@@ -331,11 +331,11 @@
     </message>
     <message>
         <source>This website does not contain any feeds</source>
-        <translation type="unfinished"/>
+        <translation>Tento web neobsahuje kanály</translation>
     </message>
     <message numerus="yes">
         <source>Add one of %n feed(s)</source>
-        <translation type="unfinished"><numerusform></numerusform><numerusform></numerusform><numerusform></numerusform><numerusform></numerusform></translation>
+        <translation><numerusform>Přidat %n kanál</numerusform><numerusform>Přidat %n kanály</numerusform><numerusform>Přidat %n kanálů</numerusform><numerusform>Přidat %n kanálů</numerusform></translation>
     </message>
 </context>
 <context>
@@ -523,16 +523,16 @@ Stav: %3</translation>
     <message numerus="yes">
         <source>uses global settings (%n minute(s) to next auto-download of messages)</source>
         <extracomment>Describes feed auto-update status.</extracomment>
-        <translation type="unfinished"><numerusform></numerusform><numerusform></numerusform><numerusform></numerusform><numerusform></numerusform></translation>
+        <translation><numerusform>dle globálního nastavení (%n minuta do dalšího automatického stažení zpráv)</numerusform><numerusform>dle globálního nastavení (%n minuty do dalšího automatického stažení zpráv)</numerusform><numerusform>dle globálního nastavení (%n minut do dalšího automatického stažení zpráv)</numerusform><numerusform>dle globálního nastavení (%n minut do dalšího automatického stažení zpráv)</numerusform></translation>
     </message>
     <message>
         <source>uses global settings (global auto-downloading of messages is disabled)</source>
-        <translation type="unfinished"/>
+        <translation>dle globálního nastavení (globální automatické stahování zpráv je zakázáno)</translation>
     </message>
     <message numerus="yes">
         <source>uses specific settings (%n minute(s) to next auto-downloading of new messages)</source>
         <extracomment>Describes feed auto-update status.</extracomment>
-        <translation type="unfinished"><numerusform></numerusform><numerusform></numerusform><numerusform></numerusform><numerusform></numerusform></translation>
+        <translation><numerusform>specifické nastavení (%n minuta do dalšího automatického stažení zpráv)</numerusform><numerusform>specifické nastavení (%n minuty do dalšího automatického stažení zpráv)</numerusform><numerusform>specifické nastavení (%n minut do dalšího automatického stažení zpráv)</numerusform><numerusform>specifické nastavení (%n minut do dalšího automatického stažení zpráv)</numerusform></translation>
     </message>
 </context>
 <context>
@@ -554,11 +554,11 @@ Stav: %3</translation>
     </message>
     <message>
         <source>You cannot download new messages for your items because another critical operation is ongoing.</source>
-        <translation type="unfinished"/>
+        <translation>Nelze stáhnout nové zprávy, protože právě běží jiná kritická operace.</translation>
     </message>
     <message>
         <source>Starting auto-download of some feeds&apos; messages</source>
-        <translation type="unfinished"/>
+        <translation>Spouštím stahování zpráv pro některé kanály.</translation>
     </message>
     <message numerus="yes">
         <source>I will auto-download new messages for %n feed(s).</source>
@@ -790,7 +790,7 @@ or this functionality is not implemented yet.</source>
     <name>FormAccountDetails</name>
     <message>
         <source>Edit account &apos;%1&apos;</source>
-        <translation type="unfinished"/>
+        <translation>Updavit účet &apos;%1&apos;</translation>
     </message>
 </context>
 <context>
diff --git a/localization/rssguard_sv.ts b/localization/rssguard_sv.ts
index 243eeec39..117fc0791 100644
--- a/localization/rssguard_sv.ts
+++ b/localization/rssguard_sv.ts
@@ -331,11 +331,11 @@
     </message>
     <message>
         <source>This website does not contain any feeds</source>
-        <translation type="unfinished"/>
+        <translation>Denna webbsida innehåller inga flöden</translation>
     </message>
     <message numerus="yes">
         <source>Add one of %n feed(s)</source>
-        <translation type="unfinished"><numerusform></numerusform><numerusform></numerusform></translation>
+        <translation><numerusform>Lägg till ett av %n flöde</numerusform><numerusform>Lägg till ett av %n flöden</numerusform></translation>
     </message>
 </context>
 <context>
@@ -790,7 +790,7 @@ att funktionen inte är implementerad än.</translation>
     <name>FormAccountDetails</name>
     <message>
         <source>Edit account &apos;%1&apos;</source>
-        <translation type="unfinished"/>
+        <translation>Redigera konto &quot;%1&quot;</translation>
     </message>
 </context>
 <context>
@@ -1377,18 +1377,18 @@ Det rekommenderas starkt att du skapar ditt eget applikations-ID.</translation>
     </message>
     <message>
         <source>Installed version: %1, required at least: %2.</source>
-        <translation type="unfinished"/>
+        <translation>Installerad version: %1, minsta krav: %2.</translation>
     </message>
 </context>
 <context>
     <name>FormEditTtRssAccount</name>
     <message>
         <source>Server setup</source>
-        <translation type="unfinished"/>
+        <translation>Serverinställning</translation>
     </message>
     <message>
         <source>Add new TT-RSS account</source>
-        <translation type="unfinished"/>
+        <translation>Lägg till nytt TT-RSS-konto</translation>
     </message>
 </context>
 <context>
@@ -1847,7 +1847,7 @@ Det rekommenderas starkt att du skapar ditt eget applikations-ID.</translation>
     </message>
     <message>
         <source>Message viewer toolbars</source>
-        <translation type="unfinished"/>
+        <translation>Verktygsfält i meddelandeläsare</translation>
     </message>
 </context>
 <context>
@@ -3209,7 +3209,7 @@ Inloggningstoken upphör: %2</translation>
     </message>
     <message>
         <source>Failed to starting OAuth redirection listener. Maybe your rights are not high enough.</source>
-        <translation type="unfinished"/>
+        <translation>Kunde inte starta OAuth vidarebefordringslyssnare. Dina rättigheter kanske inte är höga nog.</translation>
     </message>
 </context>
 <context>
@@ -3846,7 +3846,7 @@ Utvecklaren av detta program, är INTE ansvarig för förlorad data.</translatio
     </message>
     <message>
         <source>Bring application window to front once message is opened in external web browser</source>
-        <translation type="unfinished"/>
+        <translation>Flytta programfönstret längst fram när meddelande öppnats i extern webbläsare</translation>
     </message>
 </context>
 <context>
@@ -4017,7 +4017,7 @@ Utvecklaren av detta program, är INTE ansvarig för förlorad data.</translatio
     </message>
     <message>
         <source>Display count of unread messages</source>
-        <translation type="unfinished"/>
+        <translation>Visa räkneverk för olästa meddelanden</translation>
     </message>
 </context>
 <context>
@@ -4602,7 +4602,7 @@ Olästa nyheter: %2</translation>
     </message>
     <message>
         <source>Installed version: %1, required at least: %2.</source>
-        <translation type="unfinished"/>
+        <translation>Installerad version: %1, minsta krav: %2.</translation>
     </message>
     <message>
         <source>Selected Tiny Tiny RSS server is running unsupported version of API.</source>
@@ -4758,15 +4758,15 @@ Senaste inloggning: %4</translation>
     </message>
     <message>
         <source>Open this website in system web browser</source>
-        <translation type="unfinished"/>
+        <translation>Öppna denna webbsida i systemets webbläsare</translation>
     </message>
     <message>
         <source>Failed to open URL in web browser</source>
-        <translation type="unfinished"/>
+        <translation>Kunde inte öppna URL i webbläsaren</translation>
     </message>
     <message>
         <source>URL &apos;%1&apos; could not be opened in system&apos;s web browser.</source>
-        <translation type="unfinished"/>
+        <translation>URL:en &quot;%1&quot; kunde inte öppnas i systemets webbläsare.</translation>
     </message>
 </context>
 <context>
diff --git a/resources/desktop/com.github.rssguard.appdata.xml b/resources/desktop/com.github.rssguard.appdata.xml
index b8ab84666..098bc33a8 100644
--- a/resources/desktop/com.github.rssguard.appdata.xml
+++ b/resources/desktop/com.github.rssguard.appdata.xml
@@ -30,7 +30,7 @@
   <url type="donation">https://martinrotter.github.io/donate/</url>
   <content_rating type="oars-1.1" />
   <releases>
-    <release version="3.8.4" date="2021-01-11"/>
+    <release version="3.8.4" date="2021-01-12"/>
   </releases>
   <content_rating type="oars-1.0">
     <content_attribute id="violence-cartoon">none</content_attribute>
diff --git a/resources/rssguard.qrc b/resources/rssguard.qrc
index 8ce351062..35a39dceb 100755
--- a/resources/rssguard.qrc
+++ b/resources/rssguard.qrc
@@ -37,6 +37,7 @@
         <file>graphics/misc/flags/lt.png</file>
         <file>graphics/misc/flags/nl.png</file>
         <file>graphics/misc/flags/pl.png</file>
+        <file>graphics/misc/flags/pt_BR.png</file>
         <file>graphics/misc/flags/pt_PT.png</file>
         <file>graphics/misc/flags/ru.png</file>
         <file>graphics/misc/flags/sv.png</file>
@@ -80,6 +81,7 @@
         <file>../localization/rssguard_lt.qm</file>
         <file>../localization/rssguard_nl.qm</file>
         <file>../localization/rssguard_pl.qm</file>
+        <file>../localization/rssguard_pt_BR.qm</file>
         <file>../localization/rssguard_pt_PT.qm</file>
         <file>../localization/rssguard_ru.qm</file>
         <file>../localization/rssguard_sv.qm</file>
@@ -97,6 +99,7 @@
         <file>../localization/qtbase_ja.qm</file>
         <file>../localization/qtbase_lt.qm</file>
         <file>../localization/qtbase_pl.qm</file>
+        <file>../localization/qtbase_pt_BR.qm</file>
         <file>../localization/qtbase_pt_PT.qm</file>
         <file>../localization/qtbase_ru.qm</file>
         <file>../localization/qtbase_sv.qm</file>
diff --git a/resources/scripts/update-localizations.sh b/resources/scripts/update-localizations.sh
index 638d999e7..77e33e284 100755
--- a/resources/scripts/update-localizations.sh
+++ b/resources/scripts/update-localizations.sh
@@ -9,7 +9,7 @@ read -p "Password: " PASSWORD
 
 # Setup parameters.
 RESOURCE=../../../localization/rssguard_en.ts
-CODES="cs da de es fi fr gl he id it ja lt nl pl pt_PT ru sv uk zh_CN zh_TW"
+CODES="cs da de es fi fr gl he id it ja lt nl pl pt_BR pt_PT ru sv uk zh_CN zh_TW"
 TRANSLATION='../../../localization/rssguard_$CODE.ts'
 
 declare PARAMS
@@ -22,4 +22,4 @@ done
 
 cd ./transka
 
-$TRANSKA $PARAMS
\ No newline at end of file
+$TRANSKA $PARAMS