Bump version to 25.7.0

[why]
To keep in sync with DOOCS release 25.7.0.

Signed-off-by: Lars Froehlich <lars.froehlich@desy.de>

Author: alt-graph

data/doxygen.h

@@ -146,7 +146,7 @@ namespace gul17 {
  *
  * \section changelog_gul17 GUL17 Versions
  *
- * \subsection V25_X_X UNRELEASED
+ * \subsection V25_7_0 Version 25.7.0
  *
  * - Add gul17::null_safe_string(const char*) and
  *   gul17::null_safe_string_view(const char*). The new functions construct a string or

include/gul17/OverloadSet.h

@@ -51,7 +51,7 @@ namespace gul17 {
  * Addison-Wesley, 2023.
  *
  * \since GUL14 version 2.9.2; dropped in GUL17 25.3.0; reintroduced in GUL17 version
- *        UNRELEASED
+ *        25.7.0
  */
 template<typename... Fcts>
 struct OverloadSet : Fcts ...

include/gul17/join_split.h

@@ -392,7 +392,7 @@ join(const StringContainer& parts, std::string_view glue)
  *                   iterator type and returns a string type. This string type must
  *                   support concatenation with std::string::operator+=().
  *
- * \since GUL version UNRELEASED
+ * \since version 25.7.0
  */
 template <typename Iterator, typename ConversionFct>
 inline std::string
@@ -448,7 +448,7 @@ join(Iterator begin, Iterator end, std::string_view glue, ConversionFct to_strin
  *                     iterator type and returns a string type. This string type must
  *                     support concatenation with std::string::operator+=().
  *
- * \since GUL version UNRELEASED
+ * \since version 25.7.0
  */
 template <typename Container, typename ConversionFct>
 inline std::string

include/gul17/string_util.h

@@ -239,7 +239,7 @@ hex_string(const Container& container, std::string_view separator = "")
  *
  * \see safe_string(), null_safe_string_view()
  *
- * \since GUL version UNRELEASED
+ * \since version 25.7.0
  */
 GUL_EXPORT
 std::string null_safe_string(const char* char_ptr);
@@ -260,7 +260,7 @@ std::string null_safe_string(const char* char_ptr);
  *
  * \see safe_string_view(), null_safe_string()
  *
- * \since GUL version UNRELEASED
+ * \since version 25.7.0
  */
 GUL_EXPORT
 std::string_view null_safe_string_view(const char* char_ptr);