PHP 8.3
Current patch release: 8.3.30
End of life in 669 days (December 31, 2027). Plan your upgrade now.
November 23, 2023
December 31, 2025
December 31, 2027
8.3.30 (January 15, 2026)
About PHP 8.3
PHP 8.3 added typed class constants, deep cloning of readonly properties, and the json_validate() function. A solid quality-of-life release.
Key Changes in PHP 8.3
- ●Typed class constants for compile-time type safety on constants
- ●Deep cloning support for readonly properties
- ●
json_validate()function for checking JSON validity without decoding - ●New
#[Override]attribute to explicitly mark method overrides - ●Randomizer additions: getBytesFromString(), getFloat(), nextFloat()
PHP 8.3 has transitioned into security-only maintenance since December 31, 2025. This means it still receives critical security patches, but no new features, performance improvements, or non-critical bug fixes will be backported. It remains a safe choice for production systems that cannot upgrade immediately, but you should begin planning your migration path.
When you are ready to upgrade, PHP 8.5 is the recommended target. Test your application against 8.5 in a staging environment first, paying attention to any deprecated APIs you may be using.
Lifecycle Progress
55% through its lifecycle. 669 days remaining.
All PHP Versions
| Version | Released | EOL | Latest | Status |
|---|---|---|---|---|
| 8.5 | November 20, 2025 | December 31, 2029 | 8.5.3 | Active |
| 8.4 | November 21, 2024 | December 31, 2028 | 8.4.18 | Active |
| 8.3 (current page) | November 23, 2023 | December 31, 2027 | 8.3.30 | Security Only |
| 8.2 | December 8, 2022 | December 31, 2026 | 8.2.30 | Security Only |
| 8.1 | November 25, 2021 | December 31, 2025 | 8.1.34 | End of Life |
| 8.0 | November 26, 2020 | November 26, 2023 | 8.0.30 | End of Life |
| 7.4 | November 28, 2019 | November 28, 2022 | 7.4.33 | End of Life |
| 7.3 | December 6, 2018 | December 6, 2021 | 7.3.33 | End of Life |
| 7.2 | November 30, 2017 | November 30, 2020 | 7.2.34 | End of Life |
| 7.1 | December 1, 2016 | December 1, 2019 | 7.1.33 | End of Life |
| 7.0 | December 3, 2015 | January 10, 2019 | 7.0.33 | End of Life |
| 5.6 | August 28, 2014 | December 31, 2018 | 5.6.40 | End of Life |
| 5.5 | June 20, 2013 | July 21, 2016 | 5.5.38 | End of Life |
| 5.4 | March 1, 2012 | September 14, 2015 | 5.4.45 | End of Life |
| 5.3 | June 30, 2009 | August 14, 2014 | 5.3.29 | End of Life |
| 5.2 | November 2, 2006 | January 6, 2011 | 5.2.17 | End of Life |
| 5.1 | November 24, 2005 | August 24, 2006 | 5.1.6 | End of Life |
| 5.0 | July 13, 2004 | September 5, 2005 | 5.0.5 | End of Life |
Frequently Asked Questions
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