jQuery.support
A collection of properties that represent the presence of different browser features or bugs; intended for jQuery’s internal use.
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HTTP/2 200
date: Mon, 06 Oct 2025 00:52:25 GMT
content-type: text/html; charset=UTF-8
cf-ray: 98a12d049cd4c197-BLR
vary: Accept-Encoding
vary: X-Forwarded-Proto
x-powered-by: PHP/8.2.29
reporting-endpoints: csp-endpoint="https://csp-report-api.openjs-foundation.workers.dev/"
content-security-policy: default-src 'self'; script-src 'self' 'unsafe-inline' code.jquery.com api.flickr.com; style-src 'self' 'unsafe-inline' code.jquery.com; style-src-attr 'unsafe-inline'; img-src 'self' data: code.jquery.com live.staticflickr.com; connect-src 'self' typesense.jquery.com; font-src 'self' data:; object-src 'none'; frame-ancestors 'none'; base-uri 'self'; block-all-mixed-content ; report-to csp-endpoint; report-uri https://csp-report-api.openjs-foundation.workers.dev/;
link: ; rel="alternate"; title="JSON"; type="application/json"
content-encoding: gzip
last-modified: Mon, 06 Oct 2025 00:52:25 GMT
cf-cache-status: EXPIRED
server: cloudflare
Version 1.11 & 2.1 | jQuery API Documentation
Category: Version 1.11 & 2.1
Some APIs may have changed since these versions were released. If using either version, find out about our version support.
All the aspects of the API that were added, or had a new signature added, in the corresponding version of jQuery.
Changes in jQuery 1.11 and 2.1 include lower startup overhead & fewer forced layouts; jQuery is now authored via AMD and published to npm & bower under the name jquery.
For more information, see the Release Notes/Changelog.