PostgreSQL has a wide variety of community and commercial support options available for users, including:
Commercial support is also available from one of the many companies providing professional services to the PostgreSQL community. A list of companies that provide PostgreSQL-specific hosting is also available.
You can see previous bug reports, and track your own on the email@example.com mailing list.
If you believe you have found a security issue, please send an email to firstname.lastname@example.org.