In the docs I miss some more examples how the config would look like as JSON or YAML, as I had to look up other configs on GitHub before I exactly knew what to do.

• updates.py - Use requires_admin instead of file_requires_admin & dir_requires_admin
• updates.win_run: do not return the Popen
• docs - usage-client-advanced.md: download_verify_write should return a boolean to signal if the write was successful or not.