Fix of an application update situation, where the profiles were

not updated correctly if the index installed in vendor directory
was the same as the one provided with the applicaton installation.

src/slic3r/Utils/PresetUpdater.hpp

@@ -38,7 +38,9 @@ public:
 
 	// If updating is enabled, check if updates are available in cache, if so, ask about installation.
 	// A false return value implies Slic3r should exit due to incompatibility of configuration.
-	UpdateResult config_update() const;
+	// Providing old slic3r version upgrade profiles on upgrade of an application even in case
+	// that the config index installed from the Internet is equal to the index contained in the installation package.
+	UpdateResult config_update(const Semver &old_slic3r_version) const;
 
 	// "Update" a list of bundles from resources (behaves like an online update).
 	void install_bundles_rsrc(std::vector<std::string> bundles, bool snapshot = true) const;