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Sharing one of the important update for all PostgreSQL Professionals.
Recently, PostgreSQL Organization announces that No more Support and Update for PostgreSQL 9.1.
PostgreSQL 9.1 has End of Life in November 2016.
If you or your organization currently using PostgreSQL 9.1, you should upgrade your Database Server from PostgreSQL 9.1 to PostgreSQL 9.5 or PostgreSQL 9.6.
The official release date of PostgreSQL 9.6 was on 2016-08-27, but unfortunately It postponed and now release somewhere in September 2016.
You can use pg_upgrade to upgrade your PostgreSQL Database Server.