Please use the latest release you can find in the CHANGELOG.md.
Please disclose any vulnerabilities found responsibly - report any security problems found to the maintainers privately. For example you can write me a email: lars@moelleken.org
Portable UTF-8 versions prior to 5.4.26 (released 2019-11-05) have an open redirect vulnerability. The Bootup::filterRequestUri()
method used a unsecure header('Location ...
implentation. And because it's most secure to not use this method at all, I decided to disable the function by default.