Log Message:
fmtlib: updated to 10.2.1

10.2.1 - 2024-01-03

-   Fixed ABI compatibility with earlier 10.x versions

10.2.0 - 2024-01-01

-   Added support for the `%j` specifier (the number of days) for
    `std::chrono::duration`

-   Added support for the chrono suffix for days and changed
    the suffix for minutes from "m" to the correct "min"
    For example ([godbolt](https://godbolt.org/z/9KhMnq9ba)):

    ```c++
    #include <fmt/chrono.h>

    int main() {
      fmt::print("{}\n", std::chrono::days(42)); // prints "42d"
    }
    ```

-   Fixed an overflow in `std::chrono::time_point` formatting with large dates
-   Added a formatter for `std::source_location`
    For example ([godbolt](https://godbolt.org/z/YajfKjhhr)):

    ```c++
    #include <source_location>
    #include <fmt/std.h>

    int main() {
      fmt::print("{}\n", std::source_location::current());
    }
    ```

    prints

    ```
    /app/example.cpp:5:51: int main()
    ```

-   Added a formatter for `std::bitset`

    ```c++
    #include <bitset>
    #include <fmt/std.h>

    int main() {
      fmt::print("{}\n", std::bitset<6>(42)); // prints \ 
"101010"
    }
    ```

-   Added an experimental `nested_formatter` that provides an easy way of
    applying a formatter to one or more subobjects while automatically handling
    width, fill and alignment. For example:

    ```c++
    #include <fmt/format.h>

    struct point {
      double x, y;
    };

    template <>
    struct fmt::formatter<point> : nested_formatter<double> {
      auto format(point p, format_context& ctx) const {
        return write_padded(ctx, [=](auto out) {
          return format_to(out, "({}, {})", nested(p.x), nested(p.y));
        });
      }
    };

    int main() {
      fmt::print("[{:>20.2f}]", point{1, 2});
    }
    ```

    prints

    ```
    [          (1.00, 2.00)]
    ```

-   Added the generic representation (`g`) to `std::filesystem::path`

    ```c++
    #include <filesystem>
    #include <fmt/std.h>

    int main() {
      fmt::print("{:g}\n", std::filesystem::path("C:\\foo"));
    }
    ```

    prints `"C:/foo"` on Windows.

-   Made `format_as` work with references
-   Fixed formatting of invalid UTF-8 with precision
-   Fixed an inconsistency between `fmt::to_string` and `fmt::format`
-   Disallowed unsafe uses of `fmt::styled`

    ```c++
    auto s = fmt::styled(std::string("dangle"), fmt::emphasis::bold);
    fmt::print("{}\n", s); // compile error
    ```

    Pass `fmt::styled(...)` as a parameter instead.

-   Added a null check when formatting a C string with the `s` specifier
-   Disallowed the `c` specifier for `bool`
-   Made the default formatting unlocalized in `fmt::ostream_formatter` for
    consistency with the rest of the library
-   Fixed localized formatting in bases other than decimal
-   Fixed a performance regression in experimental `fmt::ostream::print`
-   Added synchronization with the underlying output stream when writing to
    the Windows console
-   Changed to only export `format_error` when {fmt} is built as a shared
    library
-   Made `fmt::streamed` `constexpr`.
-   Enabled `consteval` on older versions of MSVC
-   Added an option to build without `wchar_t` support on Windows
-   Improved build and CI configuration
-   Fixed various warnings, compilation and test issues
-   Improved documentation and README
-   Updated CI dependencies