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Update upgrade FAQ info.

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Bruce Momjian
2007-02-23 19:06:22 +00:00
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Frequently Asked Questions (FAQ) for PostgreSQL
Last updated: Wed Feb 21 17:54:05 EST 2007
Last updated: Fri Feb 23 14:06:15 EST 2007
Current maintainer: Bruce Momjian (bruce@momjian.us)
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3.6) What is the upgrade process for PostgreSQL?
The PostgreSQL team only adds bug fixes to minor releases. All users
should upgrade to the most recent minor release as soon as possible.
While upgrades always have some risk, PostgreSQL minor releases fix
only frequently-encountered, security, and data corruption bugs, to
reduce the risk of upgrading. The community considers not upgrading
more risky than upgrading.
PostgreSQL major releases include new features and occur roughly once
every year. A major release is numbered by increasing either the first
or second part of the version number, e.g. 8.1 to 8.2.
Upgrading to a minor release, e.g. 8.1.5 to 8.1.6, does not does not
require a dump and restore; merely stop the database server, install
the updated binaries, and restart the server.
Major releases usually change the internal format of system tables and
data files. These changes are often complex, so we don't maintain
backward compatibility for data files. A dump/reload of the database
is required for major upgrades.
Major releases (e.g. from 7.3 to 7.4) often change the internal format
of system tables and data files. These changes are often complex, so
we don't maintain backward compatibility for data files. A dump/reload
of the database is required for major upgrades.
Minor releases are numbered by increasing the third part of the
version number, e.g. 8.1.5 to 8.1.6. The PostgreSQL team only adds bug
fixes to minor releases. All users should upgrade to the most recent
minor release as soon as possible. While upgrades always have some
risk, PostgreSQL minor releases fix only frequently-encountered,
security, and data corruption bugs to reduce the risk of upgrading.
The community considers not upgrading riskier than upgrading.
`
Upgrading to a minor release does not does not require a dump and
restore; merely stop the database server, install the updated
binaries, and restart the server.
3.7) What computer hardware should I use?