Compatibility/it

MediaWiki strives to maintain broad compatibility between versions, and with a range of current and legacy software. At the same time, the constantly-evolving codebase and features of the latest MediaWiki development mean that it is not possible to maintain compatibility with legacy software indefinitely.

Browsers
There is an ever-growing number of different web browsers in the world. Too many to actively test and support each one. To guide our practices around browser support, we have three levels of support. Each tier represents a different category of browsers.

Modern
This group (also known as Grade A) represents the highest level of support. Features take advantage of capabilities in modern browsers, while allowing a graceful fallback for older browsers. All features provided by the software (whether or not in a degraded form) must work in these browsers.

Browsers in this category are known (listed below) and actively tested against. Problems users perceive in these browsers are addressed with high priority.

Basic
The group (also known as Grade C) is provided the core functionality of the MediaWiki platform. Our HTTP responses are compatible with these browsers (e.g. HTTP features we rely on, character encoding, and image formats used by the content; must work in these browsers). In the front-end this means content is presented in a readable manner, and to some extent user actions can be performed.

Browsers in this category are known (listed below) and identified via a blacklist in the startup module. Problems users perceive in these browsers are addressed with high priority. Issue handling focuses mainly on ensuring provided functionality is not broken; if acceptable from a product perspective, this may result in the functionality (whether or not temporarily) no longer being provided for these browsers.

MediaWiki may serve these browsers a JavaScript-less environment. The environment may lack certain visual features and extra functionally. The core functionality for these browsers must be maintained via traditional client-server interaction with full GET/POST page loads.

Unknown
This group (also known as Grade X) represents all other browsers. This includes browsers that are no longer developed or browsers not popular enough to justify the added maintenance cost for software development.

Browsers not included in any other group belong to this category. Problems users perceive in these browsers only are given low priority.

MediaWiki handles these browsers the same as Modern (Grade A) browsers and are thus assumed to be capable. This principle provides various important benefits:
 * New versions of modern browsers may temporarily be considered Unknown if they are not yet tested against by us. Treating Unknown browsers as capable ensures optimal user experience in these browsers.
 * Users of new and evolving browsers are given a chance to have a modern experience.
 * Users of less popular browsers based on, or derived from, known modern browsers are not negatively impacted (e.g. Iceweasel).

In practice the only difference between Unknown and Modern browsers is that we don't actively test against Unknown browsers. These browsers are given the full feature set.

Browser support matrix
While the principles and different grades described above apply to MediaWiki core and extensions alike, the below browser support matrix applies to MediaWiki core only (and extensions that decide to follow it). Individual extensions may have their own support matrix distributing browsers among the different levels of support.


 * A few mobile browsers are included here. However as noted earlier, this matrix is for MediaWiki core and its desktop skin. Mobile-specific skins and/or extensions especially for mobile devices may have a different support matrix.

PHP
L'ultimo ramo stabile di MediaWiki necessità per funzionare di una qualsiasi versione di PHP da  a 7 E'inoltre in sperimentazione il supporto a HHVM.

MediaWiki 1.23 e 1.27 continueranno a ricevere aggiornamenti di sicurezza fino alla fine del loro ciclo di vita (vedi ciclo di vita delle versioni) e resteranno compatibili con le rispettive versioni di PHP.

Database
MediaWiki è compatibile con svariati database server, il più supportato è MySQL. (Ma può essere utilizzato anche MariaDB).

Support for any other database software ranges from dubious to stable; architectures for which have at least some support. Usare MediaWiki su database diversi da MySQL o MariaDB non è raccomandato per l'uso in produzione.

Web server
MediaWiki è compatibile con tutti i maggiori web server che possono invocare una versione compatibile di PHP. Apache è il più usato e testato. HHVM e nginx sono comunque ottime scelte.

Note

 * Software marked in blue is supported while software marked in orange is not supported.

Vedi anche

 * delle versioni di MediaWiki
 * Retrocompatibilità

Collegamenti esterni

 * YUI Graded Browser Support - Popularized the concepts of Grade A, C, and X.