diff --git a/resources/scripts/7za b/resources/scripts/7za
index 47f412575..9c10723bf 160000
--- a/resources/scripts/7za
+++ b/resources/scripts/7za
@@ -1 +1 @@
-Subproject commit 47f4125753452eff8800dbd6600c5a05540b15d9
+Subproject commit 9c10723bfbaf6cb85107d6ee16e0324e9e487749
diff --git a/resources/sql/db_init_sqlite.sql b/resources/sql/db_init_sqlite.sql
index 98b2a3234..5d929012d 100644
--- a/resources/sql/db_init_sqlite.sql
+++ b/resources/sql/db_init_sqlite.sql
@@ -23,7 +23,7 @@ CREATE TABLE Categories (
   title           TEXT        NOT NULL CHECK (title != ''),
   description     TEXT,
   date_created    BIGINT,
-  icon            BLOB,
+  icon            °°,
   account_id      INTEGER     NOT NULL,
   custom_id       TEXT,
   
@@ -35,10 +35,10 @@ CREATE TABLE Feeds (
   title           TEXT        NOT NULL CHECK (title != ''),
   description     TEXT,
   date_created    BIGINT,
-  icon            BLOB,
+  icon            °°,
   category        INTEGER     NOT NULL CHECK (category >= -1), /* Root feeds contain -1 here. */
   source          TEXT,
-  update_type     INTEGER(1)  NOT NULL CHECK (update_type >= 0),
+  update_type     INTEGER     NOT NULL CHECK (update_type >= 0),
   update_interval INTEGER     NOT NULL DEFAULT 15 CHECK (update_interval >= 1),
   account_id      INTEGER     NOT NULL,
   custom_id       TEXT        NOT NULL CHECK (custom_id != ''), /* Custom ID cannot be empty, it must contain either service-specific ID, or Feeds/id. */
@@ -50,10 +50,10 @@ CREATE TABLE Feeds (
 -- !
 CREATE TABLE Messages (
   id              $$,
-  is_read         INTEGER(1)  NOT NULL DEFAULT 0 CHECK (is_read >= 0 AND is_read <= 1),
-  is_important    INTEGER(1)  NOT NULL DEFAULT 0 CHECK (is_important >= 0 AND is_important <= 1),
-  is_deleted      INTEGER(1)  NOT NULL DEFAULT 0 CHECK (is_deleted >= 0 AND is_deleted <= 1),
-  is_pdeleted     INTEGER(1)  NOT NULL DEFAULT 0 CHECK (is_pdeleted >= 0 AND is_pdeleted <= 1),
+  is_read         INTEGER     NOT NULL DEFAULT 0 CHECK (is_read >= 0 AND is_read <= 1),
+  is_important    INTEGER     NOT NULL DEFAULT 0 CHECK (is_important >= 0 AND is_important <= 1),
+  is_deleted      INTEGER     NOT NULL DEFAULT 0 CHECK (is_deleted >= 0 AND is_deleted <= 1),
+  is_pdeleted     INTEGER     NOT NULL DEFAULT 0 CHECK (is_pdeleted >= 0 AND is_pdeleted <= 1),
   feed            TEXT        NOT NULL, /* Points to Feeds/custom_id. */
   title           TEXT        NOT NULL CHECK (title != ''),
   url             TEXT,
diff --git a/src/librssguard/database/databasedriver.cpp b/src/librssguard/database/databasedriver.cpp
index 062a65e8e..0574c3e76 100755
--- a/src/librssguard/database/databasedriver.cpp
+++ b/src/librssguard/database/databasedriver.cpp
@@ -48,5 +48,7 @@ QStringList DatabaseDriver::prepareScript(const QString& base_sql_folder,
 
   statements.replaceInStrings(APP_DB_NAME_PLACEHOLDER, database_name);
   statements.replaceInStrings(APP_DB_AUTO_INC_PRIM_KEY_PLACEHOLDER, autoIncrementPrimaryKey());
+  statements.replaceInStrings(APP_DB_BLOB_PLACEHOLDER, blob());
+
   return statements;
 }
diff --git a/src/librssguard/database/databasedriver.h b/src/librssguard/database/databasedriver.h
index 06eb0797b..1bba300a6 100755
--- a/src/librssguard/database/databasedriver.h
+++ b/src/librssguard/database/databasedriver.h
@@ -32,6 +32,7 @@ class DatabaseDriver : public QObject {
     virtual QString qtDriverCode() const = 0;
     virtual DriverType driverType() const = 0;
     virtual QString autoIncrementPrimaryKey() const = 0;
+    virtual QString blob() const = 0;
     virtual bool vacuumDatabase() = 0;
     virtual bool saveDatabase() = 0;
     virtual void backupDatabase(const QString& backup_folder, const QString& backup_name) = 0;
diff --git a/src/librssguard/database/mariadbdriver.cpp b/src/librssguard/database/mariadbdriver.cpp
index 0bc4e43d3..bcad6ade8 100755
--- a/src/librssguard/database/mariadbdriver.cpp
+++ b/src/librssguard/database/mariadbdriver.cpp
@@ -298,3 +298,7 @@ QSqlDatabase MariaDbDriver::connection(const QString& connection_name, DatabaseD
 QString MariaDbDriver::autoIncrementPrimaryKey() const {
   return QSL("INTEGER AUTO_INCREMENT PRIMARY KEY");
 }
+
+QString MariaDbDriver::blob() const {
+  return QSL("BLOB");
+}
diff --git a/src/librssguard/database/mariadbdriver.h b/src/librssguard/database/mariadbdriver.h
index fdcda0a58..90556c18b 100755
--- a/src/librssguard/database/mariadbdriver.h
+++ b/src/librssguard/database/mariadbdriver.h
@@ -34,6 +34,7 @@ class MariaDbDriver : public DatabaseDriver {
     virtual QSqlDatabase connection(const QString& connection_name,
                                     DatabaseDriver::DesiredStorageType desired_type = DatabaseDriver::DesiredStorageType::FromSettings);
     virtual QString autoIncrementPrimaryKey() const;
+    virtual QString blob() const;
 
     QString interpretErrorCode(MariaDbError error_code) const;
 
diff --git a/src/librssguard/database/sqlitedriver.cpp b/src/librssguard/database/sqlitedriver.cpp
index 7d0773bb0..0fa70b18e 100755
--- a/src/librssguard/database/sqlitedriver.cpp
+++ b/src/librssguard/database/sqlitedriver.cpp
@@ -429,3 +429,7 @@ void SqliteDriver::backupDatabase(const QString& backup_folder, const QString& b
 QString SqliteDriver::autoIncrementPrimaryKey() const {
   return QSL("INTEGER PRIMARY KEY");
 }
+
+QString SqliteDriver::blob() const {
+  return QSL("BLOB");
+}
diff --git a/src/librssguard/database/sqlitedriver.h b/src/librssguard/database/sqlitedriver.h
index 2413a7f95..a2092a7b8 100755
--- a/src/librssguard/database/sqlitedriver.h
+++ b/src/librssguard/database/sqlitedriver.h
@@ -21,6 +21,7 @@ class SqliteDriver : public DatabaseDriver {
     virtual QString qtDriverCode() const;
     virtual void backupDatabase(const QString& backup_folder, const QString& backup_name);
     virtual QString autoIncrementPrimaryKey() const;
+    virtual QString blob() const;
 
   private:
     QSqlDatabase initializeDatabase(const QString& connection_name, bool in_memory);
diff --git a/src/librssguard/definitions/definitions.h b/src/librssguard/definitions/definitions.h
index 76af20060..98f51c8c2 100755
--- a/src/librssguard/definitions/definitions.h
+++ b/src/librssguard/definitions/definitions.h
@@ -158,6 +158,7 @@
 #define APP_DB_INCLUDE_PLACEHOLDER            "!!"
 #define APP_DB_NAME_PLACEHOLDER               "##"
 #define APP_DB_AUTO_INC_PRIM_KEY_PLACEHOLDER  "$$"
+#define APP_DB_BLOB_PLACEHOLDER               "°°"
 
 #define APP_CFG_PATH        "config"
 #define APP_CFG_FILE        "config.ini"
diff --git a/src/librssguard/gui/settings/settingsbrowsermail.cpp b/src/librssguard/gui/settings/settingsbrowsermail.cpp
index 53aeb668d..c9ed80ead 100644
--- a/src/librssguard/gui/settings/settingsbrowsermail.cpp
+++ b/src/librssguard/gui/settings/settingsbrowsermail.cpp
@@ -221,7 +221,7 @@ void SettingsBrowserMail::addExternalTool() {
     item->setData(0, Qt::ItemDataRole::UserRole, QVariant::fromValue(tool));
     m_ui->m_listTools->addTopLevelItem(item);
   }
-  catch (const ApplicationException& ex) {
+  catch (const ApplicationException&) {
     // NOTE: Tool adding cancelled.
   }
 }
@@ -269,7 +269,7 @@ void SettingsBrowserMail::editSelectedExternalTool() {
     m_ui->m_listTools->currentItem()->setText(1, ext_tool.parameters());
     m_ui->m_listTools->currentItem()->setData(0, Qt::ItemDataRole::UserRole, QVariant::fromValue(ext_tool));
   }
-  catch (const ApplicationException& ex) {
+  catch (const ApplicationException&) {
     // NOTE: Tool adding cancelled.
   }
 }