diff --git a/CMakeLists.txt b/CMakeLists.txt
--- a/CMakeLists.txt
+++ b/CMakeLists.txt
@@ -25,7 +25,7 @@
 
 
 set(KCALENDARCORE_LIB_VERSION "5.11.40")
-set(KCONTACTS_LIB_VERSION "5.11.40")
+set(KCONTACTS_LIB_VERSION "5.11.44")
 
 ecm_setup_version(PROJECT
     VARIABLE_PREFIX KGAPI
diff --git a/src/contacts/contact.h b/src/contacts/contact.h
--- a/src/contacts/contact.h
+++ b/src/contacts/contact.h
@@ -136,90 +136,6 @@
      */
     QDateTime updated() const;
 
-    /**
-     * @brief Sets name of contact's spouse.
-     *
-     * @param name
-     */
-    void setSpousesName(const QString &name);
-
-    /**
-     * @brief Returns name of contacts' spouse
-     */
-    QString spousesName() const;
-
-    /**
-     * @brief Sets name of contact's manager.
-     *
-     * @param name
-     */
-    void setManagersName(const QString &name);
-
-    /**
-     * @brief Returns name of contact's manager.
-     */
-    QString managersName() const;
-
-    /**
-     * @brief Sets assistant's name.
-     *
-     * @param name
-     */
-    void setAssistantsName(const QString &name);
-
-    /**
-     * @brief Returns name of contact's assistant.
-     */
-    QString assistantsName() const;
-
-    /**
-     * @brief Sets contact's profession.
-     *
-     * @param profession
-     */
-    void setProfession(const QString &profession);
-
-    /**
-     * @brief Returns contact's profession.
-     */
-    QString profession() const;
-
-    /**
-     * @brief Sets address of contact's office.
-     *
-     * @param office
-     */
-    void setOffice(const QString &office);
-
-    /**
-     * @brief Returns address of contacts' office.
-     */
-    QString office() const;
-
-    /**
-     * @brief Sets date of contact's anniversary.
-     *
-     * @param anniversary
-     */
-    void setAnniversary(const QString &anniversary);
-
-    /**
-     * @brief Returns date of contact's anniversary
-     */
-    QString anniversary() const;
-
-    /**
-     * @brief Sets URL of contact's blog.
-     *
-     * @param url
-     */
-    void setBlogFeed(const QString &url);
-
-    /**
-     * @brief Returns URL of contact's blog.
-     */
-    QString blogFeed() const;
-
     /**
      * @brief Set list of groups the contact is member of.
      *
diff --git a/src/contacts/contact.cpp b/src/contacts/contact.cpp
--- a/src/contacts/contact.cpp
+++ b/src/contacts/contact.cpp
@@ -173,76 +173,6 @@
     return d->updated;
 }
 
-void Contact::setSpousesName(const QString &name)
-{
-    insertCustom(QStringLiteral("KADDRESSBOOK"), QStringLiteral("X-SpousesName"), name);
-}
-
-QString Contact::spousesName() const
-{
-    return custom(QStringLiteral("KADDRESSBOOK"), QStringLiteral("X-SpousesName"));
-}
-
-void Contact::setManagersName(const QString &name)
-{
-    insertCustom(QStringLiteral("KADDRESSBOOK"), QStringLiteral("X-ManagersName"), name);
-}
-
-QString Contact::managersName() const
-{
-    return custom(QStringLiteral("KADDRESSBOOK"), QStringLiteral("X-ManagersName"));
-}
-
-void Contact::setAssistantsName(const QString &name)
-{
-    insertCustom(QStringLiteral("KADDRESSBOOK"), QStringLiteral("X-AssistantsName"), name);
-}
-
-QString Contact::assistantsName() const
-{
-    return custom(QStringLiteral("KADDRESSBOOK"), QStringLiteral("X-AssistantsName"));
-}
-
-void Contact::setProfession(const QString &profession)
-{
-    insertCustom(QStringLiteral("KADDRESSBOOK"), QStringLiteral("X-Profession"), profession);
-}
-
-QString Contact::profession() const
-{
-    return custom(QStringLiteral("KADDRESSBOOK"), QStringLiteral("X-Profession"));
-}
-
-void Contact::setOffice(const QString &office)
-{
-    insertCustom(QStringLiteral("KADDRESSBOOK"), QStringLiteral("X-Office"), office);
-}
-
-QString Contact::office() const
-{
-    return custom(QStringLiteral("KADDRESSBOOK"), QStringLiteral("X-Office"));
-}
-
-void Contact::setAnniversary(const QString &anniversary)
-{
-    insertCustom(QStringLiteral("KADDRESSBOOK"), QStringLiteral("X-Anniversary"), anniversary);
-}
-
-QString Contact::anniversary() const
-{
-    return custom(QStringLiteral("KADDRESSBOOK"), QStringLiteral("X-Anniversary"));
-}
-
-void Contact::setBlogFeed(const QString &url)
-{
-    insertCustom(QStringLiteral("KADDRESSBOOK"), QStringLiteral("BlogFeed"), url);
-}
-
-QString Contact::blogFeed() const
-{
-    return custom(QStringLiteral("KADDRESSBOOK"), QStringLiteral("BlogFeed"));
-}
-
 void Contact::addGroup(const QString &group)
 {
     if (d->groups.contains(group))
diff --git a/src/contacts/contactsservice.cpp b/src/contacts/contactsservice.cpp
--- a/src/contacts/contactsservice.cpp
+++ b/src/contacts/contactsservice.cpp
@@ -420,7 +420,7 @@
 
             if (event.value(QStringLiteral("rel")).toString() == QLatin1String("anniversary")) {
                 QVariantMap when = event.value(QStringLiteral("gd$when")).toMap();
-                contact->setAnniversary(when.value(QStringLiteral("startTime")).toString());
+                contact->setAnniversary(QDate::fromString(when.value(QStringLiteral("startTime")).toString(), Qt::ISODate));
             }
         }
     }
@@ -448,7 +448,7 @@
                 locator.setParameters({ { QStringLiteral("TYPE"), { QStringLiteral("PROFILE") } } });
                 contact->insertExtraUrl(locator);
             } else if (rel == QLatin1String("blog")) {
-                contact->setBlogFeed(url.toString(QUrl::PrettyDecoded));
+                contact->setBlogFeed(url);
             } else {
                 KContacts::ResourceLocatorUrl locator;
                 locator.setUrl(url);
@@ -674,14 +674,14 @@
     }
 
     /* Anniversary */
-    const QString anniversary = contact->anniversary();
+    const QString anniversary = contact->anniversary().toString(Qt::ISODate);
     if (!anniversary.isEmpty()) {
         output.append("<gContact:event rel=\"anniversary\"><gd:when startTime=\"").append(anniversary.toHtmlEscaped().toUtf8()).append("\" /></gContact:event>");
         parsedCustoms << QStringLiteral("KADDRESSBOOK-X-Anniversary");
     }
 
     /* Blog */
-    const QString blog = contact->blogFeed();
+    const QString blog = contact->blogFeed().url();
     if (!blog.isEmpty()) {
         output.append("<gContact:website rel=\"blog\" href=\"").append(blog.toHtmlEscaped().toUtf8()).append("\" />");
         parsedCustoms << QStringLiteral("KADDRESSBOOK-BlogFeed");
@@ -1009,16 +1009,16 @@
         if (e.tagName() == QLatin1String("gContact:event")) {
             if (e.attribute(QStringLiteral("rel"), QString()) == QLatin1String("anniversary")) {
                 QDomElement w = e.firstChildElement(QStringLiteral("gd:when"));
-                contact->setAnniversary(w.attribute(QStringLiteral("startTime"), QString()));
+                contact->setAnniversary(QDate::fromString(w.attribute(QStringLiteral("startTime"), QString()), Qt::ISODate));
             }
 
             continue;
         }
 
         /* Websites */
         if (e.tagName() == QLatin1String("gContact:website")) {
             if (e.attribute(QStringLiteral("rel"), QString()) == QLatin1String("blog")) {
-                contact->setBlogFeed(e.attribute(QStringLiteral("href"), QString()));
+                contact->setBlogFeed(QUrl(e.attribute(QStringLiteral("href"), QString())));
                 continue;
             }