+COMMON_EXPORT QByteArray prettyDigest(const QByteArray& digest);
+
+/**
+ * Format a string with %%<text>%% to current date/timestamp via QDateTime.
+ *
+ * @param[in] formatStr String with format codes
+ * @return String with current date/time substituted in via formatting codes
+ */
+COMMON_EXPORT QString formatCurrentDateTimeInString(const QString& formatStr);
+
+/**
+ * Try to localize a given date/time in seconds from Unix epoch, pass through string if invalid
+ *
+ * Allows compatibility with date/time fields that may or may not be in Unix epoch format,
+ * localizing if possible, leaving alone if not.
+ *
+ * @param possibleEpochDate Date/time that might be in seconds since Unix epoch format
+ * @param dateFormat Desired format of the date/time string
+ * @param useUTC If true, use UTC timezone, otherwise use local time
+ * @return Localized date/time if parse succeeded, otherwise the source string
+ */
+COMMON_EXPORT QString tryFormatUnixEpoch(const QString& possibleEpochDate,
+ Qt::DateFormat dateFormat = Qt::DateFormat::TextDate,
+ bool useUTC = false);
+
+/**
+ * Format the given date/time in ISO 8601 format with timezone offset
+ *
+ * @param dateTime Date/time of interest
+ * @return Date/time in ISO 8601 format with timezone offset
+ */
+COMMON_EXPORT QString formatDateTimeToOffsetISO(const QDateTime& dateTime);
+
+namespace detail {
+
+template<typename... Args>
+struct SelectOverloadHelper
+{
+ template<typename R, typename C>
+ constexpr auto operator()(R (C::*func)(Args...)) const noexcept -> decltype(func)
+ {
+ return func;
+ }
+};
+
+} // namespace detail
+
+/**
+ * Helper for resolving ambiguous overloads when using the member function-based connect syntax.
+ *
+ * Example usage:
+ * @code
+ * connect(this, selectOverload<int, QString>(&MyClass::mySignal), other, &Other::mySlot);
+ * @endcode
+ *
+ * @tparam Args Argument types of the desired signature
+ */
+template<typename... Args>
+constexpr Q_DECL_UNUSED detail::SelectOverloadHelper<Args...> selectOverload = {};