WebDNA FastCGI 8.5.1 for Apple OS X SierraWebDNA can be used for free after download. Just install and try it out! The only restriction is very limited concurrent page requests, which makes it unsuitable for a live webserver but is perfectly fine for a developer.
If you get a message that "the software canít be opened because it is from an unidentified developer", just go to the "System Preferences > Security and Privacy" and chose "Open Anyway"
If you want to upgrade from a previous version of WebDNA FastCGI 8.x to WebDNA FastCGI 8.5.1, just download the executable here, move the FastCGI you want to replace to the trash, and replace it with the executable you just downloaded and unzipped. Be aware that BioType certificate registration will not show if you use this method, because the administration interface has been updated from 8.2 to 8.5. To update this part, you can download a new /WebDNA folder from here.
Then, from the terminal, you need to log as root:
enter your password and copy-paste the following lines:
chown www:www WebDNA.fcgi
chmod 555 WebDNA.fcgi
Then gracefully restart WebDNA.fcgi through apache:
The administration > statistics page should now show that you run WebDNA 8.5.1
DOWNLOAD WEBDNA NOW!
(We recommend the Debian or Ubuntu versions of linux)...
WebDNA Apache module 8...WebDNA Server 8.5.1 for Debian 7
WebDNA Apache module 8...WebDNA FastCGI 8.5.1 for Ubuntu 14 with apache
WebDNA FastCGI for Apache/Ubuntu 14 (Trusty)...WebDNA FastCGI 8.5.1 for Debian 7 with nginx
WebDNA FastCGI for Nginx/Debian 7 (Wheezy)...WebDNA Server 8.5.1 for Ubuntu 15
WebDNA Apache module 8...WebDNA FastCGI 8.5.1 for Debian 8 with apache
WebDNA FastCGI for Apache/Debian 8 (Jessie)...