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[Utility & Helpers](/categories/utility) 4. / 5. symfony/event-dispatcher-contracts ActiveLibrary[Utility & Helpers](/categories/utility) symfony/event-dispatcher-contracts ================================== Generic abstractions related to dispatching event v3.6.0(1y ago)3.4k756.5M—4.2%320MITPHPPHP >=8.1 Since May 22Pushed 1w ago5 watchersCompare [ Source](https://github.com/symfony/event-dispatcher-contracts)[ Packagist](https://packagist.org/packages/symfony/event-dispatcher-contracts)[ Docs](https://symfony.com)[ Fund](https://symfony.com/sponsor)[ GitHub Sponsors](https://github.com/fabpot)[ RSS](/packages/symfony-event-dispatcher-contracts/feed)WikiDiscussions main Synced 1mo ago READMEChangelog (4)Dependencies (1)Versions (53)Used By (20) Symfony EventDispatcher Contracts ================================= [](#symfony-eventdispatcher-contracts) A set of abstractions extracted out of the Symfony components. Can be used to build on semantics that the Symfony components proved useful and that already have battle tested implementations. See for more information. ### Health Score 72 ↑ ExcellentBetter than 100% of packages Maintenance70 Regular maintenance activity Popularity79 Solid adoption and visibility Community43 Growing community involvement Maturity81 Battle-tested with a long release history Bus Factor1 Top contributor holds 57.1% of commits — single point of failure How is this calculated?**Maintenance (25%)** — Last commit recency, latest release date, and issue-to-star ratio. Uses a 2-year decay window. **Popularity (30%)** — Total and monthly downloads, GitHub stars, and forks. Logarithmic scaling prevents top-heavy scores. **Community (15%)** — Contributors, dependents, forks, watchers, and maintainers. Measures real ecosystem engagement. **Maturity (30%)** — Project age, version count, PHP version support, and release stability. ### Release Activity Cadence Every ~38 days Recently: every ~0 days Total 52 Last Release 600d ago Major Versions v1.1.12 → 2.4.x-dev2022-01-02 v2.5.1 → v3.0.22022-01-02 v1.10.0 → v3.2.02022-11-25 v2.5.3 → 3.3.x-dev2024-01-23 v2.5.4 → 3.4.x-dev2024-09-25 PHP version history (7 changes)v1.1.1PHP ^7.1.3 v2.0.0PHP ^7.2.9 v2.0.1PHP ^7.2.5 v2.1.2PHP >=7.2.5 v1.1.9PHP >=7.1.3 v3.0.0PHP >=8.0.2 v3.1.1PHP >=8.1 ### Community Maintainers ![](https://avatars.githubusercontent.com/u/47313?v=4)[Fabien Potencier](/maintainers/fabpot)[@fabpot](https://github.com/fabpot) --- Top Contributors [![nicolas-grekas](https://avatars.githubusercontent.com/u/243674?v=4)](https://github.com/nicolas-grekas "nicolas-grekas (52 commits)")[![fabpot](https://avatars.githubusercontent.com/u/47313?v=4)](https://github.com/fabpot "fabpot (21 commits)")[![derrabus](https://avatars.githubusercontent.com/u/1506493?v=4)](https://github.com/derrabus "derrabus (3 commits)")[![chalasr](https://avatars.githubusercontent.com/u/7502063?v=4)](https://github.com/chalasr "chalasr (2 commits)")[![lyrixx](https://avatars.githubusercontent.com/u/408368?v=4)](https://github.com/lyrixx "lyrixx (2 commits)")[![GromNaN](https://avatars.githubusercontent.com/u/400034?v=4)](https://github.com/GromNaN "GromNaN (1 commits)")[![kbond](https://avatars.githubusercontent.com/u/127811?v=4)](https://github.com/kbond "kbond (1 commits)")[![rosier](https://avatars.githubusercontent.com/u/117380?v=4)](https://github.com/rosier "rosier (1 commits)")[![samnela](https://avatars.githubusercontent.com/u/1852108?v=4)](https://github.com/samnela "samnela (1 commits)")[![ValentineBoineau](https://avatars.githubusercontent.com/u/34517639?v=4)](https://github.com/ValentineBoineau "ValentineBoineau (1 commits)")[![alexandre-daubois](https://avatars.githubusercontent.com/u/2144837?v=4)](https://github.com/alexandre-daubois "alexandre-daubois (1 commits)")[![xabbuh](https://avatars.githubusercontent.com/u/1957048?v=4)](https://github.com/xabbuh "xabbuh (1 commits)")[![alexpott](https://avatars.githubusercontent.com/u/769634?v=4)](https://github.com/alexpott "alexpott (1 commits)")[![a-menshchikov](https://avatars.githubusercontent.com/u/2580489?v=4)](https://github.com/a-menshchikov "a-menshchikov (1 commits)")[![artyuum](https://avatars.githubusercontent.com/u/17199757?v=4)](https://github.com/artyuum "artyuum (1 commits)")[![cedric-anne](https://avatars.githubusercontent.com/u/33253653?v=4)](https://github.com/cedric-anne "cedric-anne (1 commits)") --- Tags abstractionscontractsdecouplinginterfacesinteroperabilityphpstandardssymfonysymfony-contractsstandardsinterfacesinteroperabilitycontractsabstractionsdecoupling ### Embed Badge ![Health badge](/badges/symfony-event-dispatcher-contracts/health.svg) ``` [![Health](https://phpackages.com/badges/symfony-event-dispatcher-contracts/health.svg)](https://phpackages.com/packages/symfony-event-dispatcher-contracts) ``` ### Alternatives [symfony/service-contracts Generic abstractions related to writing services 2.6k860.1M360](/packages/symfony-service-contracts)[symfony/contracts A set of abstractions extracted out of the Symfony components 3.9k64.6M103](/packages/symfony-contracts)[symfony/translation-contracts Generic abstractions related to translation 2.6k698.7M432](/packages/symfony-translation-contracts)[symfony/cache-contracts Generic abstractions related to caching 2.4k308.9M198](/packages/symfony-cache-contracts)[symfony/http-client-contracts Generic abstractions related to HTTP clients 2.0k402.7M267](/packages/symfony-http-client-contracts) PHPackages © 2026 [Directory](/)[Categories](/categories)[Trending](/trending)[Changelog](/changelog)[Analyze](/analyze)