**Noteworthy changes in version 1.45** (2022-04-07)
* Support the "sysopen" mode parameter for gpgrt_fopen so that file
names longer than MAX_PATH can be supported under Windows.
* gpgrt_access and gpgrt_mkdir now support file names longer than
MAX_PATH.
* gpgrt_fopen now maps "/dev/null" to "nul" on Windows.
* Published some internal helper functions for Windows.
* Interface changes relative to the 1.42 release:
```
gpgrt_free_wchar NEW.
gpgrt_fname_to_wchar NEW.
gpgrt_utf8_to_wchar NEW.
gpgrt_wchar_to_utf8 NEW.
```
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