PostgreSQL 8.1 and below have been end of lifed
Necessity to support old versions of postgres makes it difficult to take advantage of performance and functionality improvements offered in later versions. An example of a performance improvement is here
; for functionality, fulltext search may be easier to implement if we don't have to support 7.x.
We intend to make phpbb 3.1 require postgres 8.1 or better, or possibly 8.2 or better if the changes between 8.1 and 8.2 warrant it.
Debian lenny ships postgres 8.3; squeeze ships 8.4. RHEL/CentOS 5 ship 8.1.