PostgreSQL Release Support Policy
From PostgreSQL wiki
The PostgreSQL project aims to fully support a major release for five years, under the terms of the Versioning policy
After a release falls out of full support, we may (at our committers' discretion) continue to apply further critical fixes to the source code, on a best-effort basis. No formal releases or binary packages will be produced by the project, but the updated source code will be available from our source code control system.
This policy will be followed on a best-effort basis. In extreme cases it may not be possible to support a release for the planned lifetime; for example if a serious bug is found that cannot be resolved in a given major version without significant risk to the stability of the code or loss of application compatibility. In such cases, early retirement of a major version may be required.
The first version update released after the EOL date will normally be the final one for that version. Note that this can extend support shortly past the listed date. For example, 7.4.30 and 8.0.26 were the EOL releases for those two versions. They were originally targeted for EOL as of July 2010, but those final versions were not actually released until October 2010.
End Of Life (EOL) dates
Releases which have already reached an EOL release are italicized:
|Version||EOL Date||Release Date|
|PostgreSQL 7.4||October 2010 (extended)||November 2003|
|PostgreSQL 8.0||October 2010 (extended)||January 2005|
|PostgreSQL 8.1||November 2010||November 2005|
|PostgreSQL 8.2||December 2011||December 2006|
|PostgreSQL 8.3||February 2013||February 2008|
|PostgreSQL 8.4||July 2014||July 2009|
|PostgreSQL 9.0||September 2015||September 2010|
Note: Versions 8.1 and earlier are not supported on Windows platforms.