diff --git a/src/plugins/projectexplorer/buildmanager.cpp b/src/plugins/projectexplorer/buildmanager.cpp
index 6de84f199b2..4dc482c4f7d 100644
--- a/src/plugins/projectexplorer/buildmanager.cpp
+++ b/src/plugins/projectexplorer/buildmanager.cpp
@@ -286,13 +286,17 @@ BuildManager *BuildManager::instance()
 void BuildManager::extensionsInitialized()
 {
     TaskHub::addCategory(Constants::TASK_CATEGORY_COMPILE,
-                         tr("Compile", "Category for compiler issues listed under 'Issues'"));
+                         tr("Compile", "Category for compiler issues listed under 'Issues'"),
+                         true, 100);
     TaskHub::addCategory(Constants::TASK_CATEGORY_BUILDSYSTEM,
-                         tr("Build System", "Category for build system issues listed under 'Issues'"));
+                         tr("Build System", "Category for build system issues listed under 'Issues'"),
+                         true, 100);
     TaskHub::addCategory(Constants::TASK_CATEGORY_DEPLOYMENT,
-                         tr("Deployment", "Category for deployment issues listed under 'Issues'"));
+                         tr("Deployment", "Category for deployment issues listed under 'Issues'"),
+                         true, 100);
     TaskHub::addCategory(Constants::TASK_CATEGORY_AUTOTEST,
-                         tr("Autotests", "Category for autotest issues listed under 'Issues'"));
+                         tr("Autotests", "Category for autotest issues listed under 'Issues'"),
+                         true, 100);
 }
 
 void BuildManager::buildProjectWithoutDependencies(Project *project)
diff --git a/src/plugins/projectexplorer/taskhub.cpp b/src/plugins/projectexplorer/taskhub.cpp
index 0db4b7073a7..ec402ad03bf 100644
--- a/src/plugins/projectexplorer/taskhub.cpp
+++ b/src/plugins/projectexplorer/taskhub.cpp
@@ -64,7 +64,7 @@ class TaskMark : public TextEditor::TextMark
 public:
     TaskMark(const Task &task) :
         TextMark(task.file, task.line, categoryForType(task.type)),
-        m_id(task.taskId)
+        m_task(task)
     {
         setColor(task.type == Task::Error ? Utils::Theme::ProjectExplorer_TaskError_TextMarkColor
                                           : Utils::Theme::ProjectExplorer_TaskWarn_TextMarkColor);
@@ -90,24 +90,24 @@ public:
     void updateLineNumber(int lineNumber) override;
     void removedFromEditor() override;
 private:
-    unsigned int m_id;
+    const Task m_task;
 };
 
 void TaskMark::updateLineNumber(int lineNumber)
 {
-    TaskHub::updateTaskLineNumber(m_id, lineNumber);
+    TaskHub::updateTaskLineNumber(m_task, lineNumber);
     TextMark::updateLineNumber(lineNumber);
 }
 
 void TaskMark::updateFileName(const FilePath &fileName)
 {
-    TaskHub::updateTaskFileName(m_id, fileName.toString());
+    TaskHub::updateTaskFileName(m_task, fileName.toString());
     TextMark::updateFileName(FilePath::fromString(fileName.toString()));
 }
 
 void TaskMark::removedFromEditor()
 {
-    TaskHub::updateTaskLineNumber(m_id, -1);
+    TaskHub::updateTaskLineNumber(m_task, -1);
 }
 
 bool TaskMark::isClickable() const
@@ -117,7 +117,7 @@ bool TaskMark::isClickable() const
 
 void TaskMark::clicked()
 {
-    TaskHub::taskMarkClicked(m_id);
+    TaskHub::taskMarkClicked(m_task);
 }
 
 TaskHub::TaskHub()
@@ -132,12 +132,13 @@ TaskHub::~TaskHub()
     m_instance = nullptr;
 }
 
-void TaskHub::addCategory(Utils::Id categoryId, const QString &displayName, bool visible)
+void TaskHub::addCategory(Utils::Id categoryId, const QString &displayName, bool visible,
+                          int priority)
 {
     QTC_CHECK(!displayName.isEmpty());
     QTC_ASSERT(!m_registeredCategories.contains(categoryId), return);
     m_registeredCategories.push_back(categoryId);
-    emit m_instance->categoryAdded(categoryId, displayName, visible);
+    emit m_instance->categoryAdded(categoryId, displayName, visible, priority);
 }
 
 TaskHub *TaskHub::instance()
@@ -178,24 +179,24 @@ void TaskHub::removeTask(const Task &task)
     emit m_instance->taskRemoved(task);
 }
 
-void TaskHub::updateTaskFileName(unsigned int id, const QString &fileName)
+void TaskHub::updateTaskFileName(const Task &task, const QString &fileName)
 {
-    emit m_instance->taskFileNameUpdated(id, fileName);
+    emit m_instance->taskFileNameUpdated(task, fileName);
 }
 
-void TaskHub::updateTaskLineNumber(unsigned int id, int line)
+void TaskHub::updateTaskLineNumber(const Task &task, int line)
 {
-    emit m_instance->taskLineNumberUpdated(id, line);
+    emit m_instance->taskLineNumberUpdated(task, line);
 }
 
-void TaskHub::taskMarkClicked(unsigned int id)
+void TaskHub::taskMarkClicked(const Task &task)
 {
-    emit m_instance->showTask(id);
+    emit m_instance->showTask(task);
 }
 
-void TaskHub::showTaskInEditor(unsigned int id)
+void TaskHub::showTaskInEditor(const Task &task)
 {
-    emit m_instance->openTask(id);
+    emit m_instance->openTask(task);
 }
 
 void TaskHub::setCategoryVisibility(Utils::Id categoryId, bool visible)
diff --git a/src/plugins/projectexplorer/taskhub.h b/src/plugins/projectexplorer/taskhub.h
index b6696fa511d..40255e21fec 100644
--- a/src/plugins/projectexplorer/taskhub.h
+++ b/src/plugins/projectexplorer/taskhub.h
@@ -50,26 +50,28 @@ public slots:
     static void removeTask(const ProjectExplorer::Task &task);
 
 public:
-    static void addCategory(Utils::Id categoryId, const QString &displayName, bool visible = true);
-    static void updateTaskFileName(unsigned int id, const QString &fileName);
-    static void updateTaskLineNumber(unsigned int id, int line);
-    static void taskMarkClicked(unsigned int id);
-    static void showTaskInEditor(unsigned int id);
+    static void addCategory(Utils::Id categoryId, const QString &displayName, bool visible = true,
+                            int priority = 0);
+    static void updateTaskFileName(const Task &task, const QString &fileName);
+    static void updateTaskLineNumber(const Task &task, int line);
+    static void taskMarkClicked(const Task &task);
+    static void showTaskInEditor(const Task &task);
     static void setCategoryVisibility(Utils::Id categoryId, bool visible);
 
     static void requestPopup();
 
 signals:
-    void categoryAdded(Utils::Id categoryId, const QString &displayName, bool visible);
+    void categoryAdded(Utils::Id categoryId, const QString &displayName, bool visible,
+                       int priority);
     void taskAdded(const ProjectExplorer::Task &task);
     void taskRemoved(const ProjectExplorer::Task &task);
     void tasksCleared(Utils::Id categoryId);
-    void taskFileNameUpdated(unsigned int id, const QString &fileName);
-    void taskLineNumberUpdated(unsigned int id, int line);
+    void taskFileNameUpdated(const Task &task, const QString &fileName);
+    void taskLineNumberUpdated(const Task &task, int line);
     void categoryVisibilityChanged(Utils::Id categoryId, bool visible);
     void popupRequested(int);
-    void showTask(unsigned int id);
-    void openTask(unsigned int id);
+    void showTask(const Task &task);
+    void openTask(const Task &task);
 
 private:
     TaskHub();
diff --git a/src/plugins/projectexplorer/taskmodel.cpp b/src/plugins/projectexplorer/taskmodel.cpp
index a52f2ff3ac6..b9b74bb340c 100644
--- a/src/plugins/projectexplorer/taskmodel.cpp
+++ b/src/plugins/projectexplorer/taskmodel.cpp
@@ -35,6 +35,9 @@
 #include <QFontMetrics>
 
 #include <algorithm>
+#include <functional>
+
+using namespace std::placeholders;
 
 namespace ProjectExplorer {
 namespace Internal {
@@ -78,11 +81,12 @@ bool TaskModel::hasFile(const QModelIndex &index) const
     return !m_tasks.at(row).file.isEmpty();
 }
 
-void TaskModel::addCategory(Utils::Id categoryId, const QString &categoryName)
+void TaskModel::addCategory(Utils::Id categoryId, const QString &categoryName, int priority)
 {
     QTC_ASSERT(categoryId.isValid(), return);
     CategoryData data;
     data.displayName = categoryName;
+    data.priority = priority;
     m_categories.insert(categoryId, data);
 }
 
@@ -99,9 +103,20 @@ Tasks TaskModel::tasks(Utils::Id categoryId) const
     return taskList;
 }
 
-bool sortById(const Task &task, unsigned int id)
+bool TaskModel::compareTasks(const Task &task1, const Task &task2)
 {
-    return task.taskId < id;
+    if (task1.category == task2.category)
+        return task1.taskId < task2.taskId;
+
+    // Higher-priority task should appear higher up in the view and thus compare less-than.
+    const int prio1 = m_categories.value(task1.category).priority;
+    const int prio2 = m_categories.value(task2.category).priority;
+    if (prio1 < prio2)
+        return false;
+    if (prio1 > prio2)
+        return true;
+
+    return task1.taskId < task2.taskId;
 }
 
 void TaskModel::addTask(const Task &task)
@@ -110,7 +125,8 @@ void TaskModel::addTask(const Task &task)
     CategoryData &data = m_categories[task.category];
     CategoryData &global = m_categories[Utils::Id()];
 
-    auto it = std::lower_bound(m_tasks.begin(), m_tasks.end(),task.taskId, sortById);
+    auto it = std::lower_bound(m_tasks.begin(), m_tasks.end(), task,
+                               std::bind(&TaskModel::compareTasks, this,  _1, task));
     int i = it - m_tasks.begin();
     beginInsertRows(QModelIndex(), i, i);
     m_tasks.insert(it, task);
@@ -134,30 +150,31 @@ void TaskModel::removeTask(unsigned int id)
     }
 }
 
-int TaskModel::rowForId(unsigned int id)
+int TaskModel::rowForTask(const Task &task)
 {
-    auto it = std::lower_bound(m_tasks.constBegin(), m_tasks.constEnd(), id, sortById);
+    auto it = std::lower_bound(m_tasks.constBegin(), m_tasks.constEnd(), task,
+                               std::bind(&TaskModel::compareTasks, this, _1, task));
     if (it == m_tasks.constEnd())
         return -1;
     return it - m_tasks.constBegin();
 }
 
-void TaskModel::updateTaskFileName(unsigned int id, const QString &fileName)
+void TaskModel::updateTaskFileName(const Task &task, const QString &fileName)
 {
-    int i = rowForId(id);
+    int i = rowForTask(task);
     QTC_ASSERT(i != -1, return);
-    if (m_tasks.at(i).taskId == id) {
+    if (m_tasks.at(i).taskId == task.taskId) {
         m_tasks[i].file = Utils::FilePath::fromString(fileName);
         const QModelIndex itemIndex = index(i, 0);
         emit dataChanged(itemIndex, itemIndex);
     }
 }
 
-void TaskModel::updateTaskLineNumber(unsigned int id, int line)
+void TaskModel::updateTaskLineNumber(const Task &task, int line)
 {
-    int i = rowForId(id);
+    int i = rowForTask(task);
     QTC_ASSERT(i != -1, return);
-    if (m_tasks.at(i).taskId == id) {
+    if (m_tasks.at(i).taskId == task.taskId) {
         m_tasks[i].movedLine = line;
         const QModelIndex itemIndex = index(i, 0);
         emit dataChanged(itemIndex, itemIndex);
diff --git a/src/plugins/projectexplorer/taskmodel.h b/src/plugins/projectexplorer/taskmodel.h
index bb3cb2c2a4c..43e2d1d18c9 100644
--- a/src/plugins/projectexplorer/taskmodel.h
+++ b/src/plugins/projectexplorer/taskmodel.h
@@ -52,14 +52,14 @@ public:
 
     QList<Utils::Id> categoryIds() const;
     QString categoryDisplayName(Utils::Id categoryId) const;
-    void addCategory(Utils::Id categoryId, const QString &categoryName);
+    void addCategory(Utils::Id categoryId, const QString &categoryName, int priority);
 
     Tasks tasks(Utils::Id categoryId = Utils::Id()) const;
     void addTask(const Task &t);
     void removeTask(unsigned int id);
     void clearTasks(Utils::Id categoryId = Utils::Id());
-    void updateTaskFileName(unsigned int id, const QString &fileName);
-    void updateTaskLineNumber(unsigned int id, int line);
+    void updateTaskFileName(const Task &task, const QString &fileName);
+    void updateTaskLineNumber(const Task &task, int line);
 
     int sizeOfFile(const QFont &font);
     int sizeOfLineNumber(const QFont &font);
@@ -74,8 +74,9 @@ public:
 
     bool hasFile(const QModelIndex &index) const;
 
-    int rowForId(unsigned int id);
+    int rowForTask(const Task &task);
 private:
+    bool compareTasks(const Task &t1, const Task &t2);
 
     class CategoryData
     {
@@ -105,6 +106,7 @@ private:
         }
 
         QString displayName;
+        int priority = 0;
         int count = 0;
         int warnings = 0;
         int errors = 0;
diff --git a/src/plugins/projectexplorer/taskwindow.cpp b/src/plugins/projectexplorer/taskwindow.cpp
index a69011df64d..7b197a7ce18 100644
--- a/src/plugins/projectexplorer/taskwindow.cpp
+++ b/src/plugins/projectexplorer/taskwindow.cpp
@@ -507,9 +507,10 @@ void TaskWindow::visibilityChanged(bool visible)
         delayedInitialization();
 }
 
-void TaskWindow::addCategory(Utils::Id categoryId, const QString &displayName, bool visible)
+void TaskWindow::addCategory(Utils::Id categoryId, const QString &displayName, bool visible,
+                             int priority)
 {
-    d->m_model->addCategory(categoryId, displayName);
+    d->m_model->addCategory(categoryId, displayName, priority);
     if (!visible) {
         QList<Utils::Id> filters = d->m_filter->filteredCategories();
         filters += categoryId;
@@ -540,30 +541,30 @@ void TaskWindow::removeTask(const Task &task)
     navigateStateChanged();
 }
 
-void TaskWindow::updatedTaskFileName(unsigned int id, const QString &fileName)
+void TaskWindow::updatedTaskFileName(const Task &task, const QString &fileName)
 {
-    d->m_model->updateTaskFileName(id, fileName);
+    d->m_model->updateTaskFileName(task, fileName);
     emit tasksChanged();
 }
 
-void TaskWindow::updatedTaskLineNumber(unsigned int id, int line)
+void TaskWindow::updatedTaskLineNumber(const Task &task, int line)
 {
-    d->m_model->updateTaskLineNumber(id, line);
+    d->m_model->updateTaskLineNumber(task, line);
     emit tasksChanged();
 }
 
-void TaskWindow::showTask(unsigned int id)
+void TaskWindow::showTask(const Task &task)
 {
-    int sourceRow = d->m_model->rowForId(id);
+    int sourceRow = d->m_model->rowForTask(task);
     QModelIndex sourceIdx = d->m_model->index(sourceRow, 0);
     QModelIndex filterIdx = d->m_filter->mapFromSource(sourceIdx);
     d->m_listview->setCurrentIndex(filterIdx);
     popup(Core::IOutputPane::ModeSwitch);
 }
 
-void TaskWindow::openTask(unsigned int id)
+void TaskWindow::openTask(const Task &task)
 {
-    int sourceRow = d->m_model->rowForId(id);
+    int sourceRow = d->m_model->rowForTask(task);
     QModelIndex sourceIdx = d->m_model->index(sourceRow, 0);
     QModelIndex filterIdx = d->m_filter->mapFromSource(sourceIdx);
     triggerDefaultHandler(filterIdx);
@@ -583,7 +584,7 @@ void TaskWindow::triggerDefaultHandler(const QModelIndex &index)
         const Utils::FilePath userChoice = Utils::chooseFileFromList(task.fileCandidates);
         if (!userChoice.isEmpty()) {
             task.file = userChoice;
-            updatedTaskFileName(task.taskId, task.file.toString());
+            updatedTaskFileName(task, task.file.toString());
         }
     }
 
diff --git a/src/plugins/projectexplorer/taskwindow.h b/src/plugins/projectexplorer/taskwindow.h
index 69efe999662..e3287a92bd5 100644
--- a/src/plugins/projectexplorer/taskwindow.h
+++ b/src/plugins/projectexplorer/taskwindow.h
@@ -82,13 +82,13 @@ signals:
 private:
     void updateFilter() override;
 
-    void addCategory(Utils::Id categoryId, const QString &displayName, bool visible);
+    void addCategory(Utils::Id categoryId, const QString &displayName, bool visible, int priority);
     void addTask(const ProjectExplorer::Task &task);
     void removeTask(const ProjectExplorer::Task &task);
-    void updatedTaskFileName(unsigned int id, const QString &fileName);
-    void updatedTaskLineNumber(unsigned int id, int line);
-    void showTask(unsigned int id);
-    void openTask(unsigned int id);
+    void updatedTaskFileName(const Task &task, const QString &fileName);
+    void updatedTaskLineNumber(const Task &task, int line);
+    void showTask(const Task &task);
+    void openTask(const Task &task);
     void clearTasks(Utils::Id categoryId);
     void setCategoryVisibility(Utils::Id categoryId, bool visible);
     void currentChanged(const QModelIndex &index);