I am a delphi Xe2 user and in my project I use Zeos 7.2 with postgresql 11. Now I have to use postgresql 15 and I don't know what happened since I get this message in the connection:
SQL Error: authentication method 10 not supported.
I think I'm supposed to use Zeos 8 but I am not sure I've no idea how to update the libs. Can anyone help me?
I don't know which methods are supported by youor library and your server. If you use SSL encrypted connections, you can use plain text passwords. Otherwise you might want to try md5.
libpq is usually distributed alongside PostgreSQL. Unfortunately PostgreSQL only distributes a 64-Bit version. If you need a 32-Bit library you might want to try some builds that I have done in the past and distributed on the Zeoslib files section: https://sourceforge.net/projects/zeoslib/files/3rd%20party/libpq/.
I seem to remember that some builds from the PG16 builds had problems. You might need to try other versions too.