Drop Support of MySQL 5.1/MariaDB 5.3/PostgreSQL 9.2 and older

[ximex]

Drop Support of:

• MySQL 5.0
• MySQL 5.1
• MariaDB 5.1
• MariaDB 5.2
• MariaDB 5.3
• PostgreSQL 9.0
• PostgreSQL 9.1
• PostgreSQL 9.2
• PostgreSQL 9.3 ??? (maintained until 2018-09)

So we drop all DB versions that aren't maintained any more. New Supported DB:

• MySQL 5.5+
• MariaDB 5.5+
• PostgreSQL 9.3+ (9.4+?)

[Fasse]

Why should we drop support? Is there a feature we want to use from the newer ones?

Since there is no technical reason we should not drop support.

[ximex]

for #501 we need to drop lower version as MySQL 5.5

[Fasse]

Why should we drop support?

Have a look at other bigger software like Wordpress: https://de.wordpress.org/about/requirements/

They support PHP 5.2 and MySql 5.0.

As said before we should not drop support only because this version is not maintained anymore.

[ximex]

As i said in the last post we need to drop it for the usage of uft8mb4