Support for Java 6 and later

Hi,

PostgreSQL JDBC 4.2 Driver, 42.2.18 currently supports Java 6 and later.
However, on the master branch, support for Java 6 and 7 are removed by pull request #1848.
https://github.com/pgjdbc/pgjdbc/pull/1848

I have three questions about this.

(1)
When will PostgreSQL JDBC Driver which do not support Java 6 be released?

(2)
When will PostgreSQL JDBC Driver which do not support Java 7 be released?

(3)
Could you please tell me the support policy for Java 8 and later?
(Ex: Java is supported for x years after released.
     Java is supported while oracle supports.)


Regards,
Ryohei Takahashi