下面是一个自 7.2 版本发布以来进入 PostgreSQL 开发版本分支的 变化．对于完整修改的列表，请参考 CVS 日志．
+ The last vestiges of support for type names datetime and timespan are gone; use timestamp and interval instead
Rule names are now per-relation, not global; DROP RULE and COMMENT ON RULE syntax changes accordingly
Readline and Zlib are now required by default and must be turned off explicitly if their use is not desired
Define a third class of function volatility to allow indexscans in more cases
Locale support is now built by default; choice of locale is set by initdb and/or at run-time
ALTER TABLE ALTER COLUMN SET/DROP NOT NULL
EXPLAIN 输出以查询结果的形式输出，而不是 NOTICE 信息
DOMAINs (那些基本类型的约束类型)
函数的访问权限
过程语言的访问权限
CREATE DATABASE 有了 OWNER 选项，这样超级用户可以为其它人创建 DB
Kerberos 5 支持现在可以用于 Heimdal
数据库和用户声明的运行时配置变量的会话缺省
(ALTER DATABASE ... SET and ALTER USER ... SET)