PHP 5.1

end of lifeno security fixes since 2006-08-24

PHP 5.1 reached end of life 20 years ago.

Supported now: PHP 8.2 (until 2026-12-31), PHP 8.3 (until 2027-12-31), PHP 8.4 (until 2028-12-31), PHP 8.5 (until 2029-12-31)

Facts

Released
(20 years ago)
Active support ended
(20 years ago)
Security support ended
(20 years ago)
Latest release
5.1.6, (20 years ago)
Source
endoflife.date (checked 2026-09-09)

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