select2 4.1.0

Select2 4.1.0

on Node.js NPM

Breaking changes

• The minimum jQuery version supported is the latest version in the 1.x, 2.x, 3.x, and 4.x series (#5525, #5955)
• Removed support for legacy Internet Explorer (versions older than IE 11) (#5834)
• Removed modules deprecated in 4.0.0 (#5815)
  • Removed legacy support for <input /> tags
  • Removed legacy support for initSelection
  • Removed legacy support for query
  • Removed old select2/compat/matcher module
• Removed undocumented CSS-related options (#5815)
  • Removed dropdownCss option
  • Removed adaptDropdownCss option
  • Removed containerCss option
  • Removed adaptContainerCss option
• The containerCssClass option has been renamed to selectionCssClass (#5815, #5847)
• Significant changes to the HTML/CSS for the selection area impacting custom themes (#5842)
• New CSS classes for the dropdown results to better target highlighted / selected results (#5841)
• The search box in the selection area for multiple selects has been changed from an <input /> to a <textarea> to support pasting multiple lines (#5806)
• Change tab key to select the currently highlighted option instead of just closing (#5759)
• Tags will be highlighted first in the results even if other options have been selected (#5812)

New features / improvements

• dropdownCssClass and selectionCssClass are now available in all builds of Select2 (#5815)
• Calls to get the currently selected options are now considerably faster on large datasets (#5775)
• Selected results in the dropdown should now be properly announced to screen readers (#5841)
• Significant improvements were made to make the selection area accessible (#5824, #5842, #5916, #5942, #5973)
• Allow pasting multiple lines into the search field for tokenization (#5806)
• Add support for jQuery 4.0.0 (#6332)
• Add originalEvent to close trigger arguments (#6079)

Bug fixes

• Resize the selection search on close to properly display the placeholder (#5766)
• Change internal data ID generation to be more unique and prevent conflicts with numeric IDs (#5840)
• Internet Explorer 11 no longer steals focus of search box while tagging (#5842)
• Fix slow memory leak caused by not clearing cache on destroy (#5965)
• Fix multiple select placeholder misalignment (#6277)
• Fix RTL selection__choice__remove button (#6257)
• Fix support for data-placeholder values which consist solely of digits (#6297)
• Fix unselection of items from AJAX data sources with non-string identifiers (#6241, #6335)
• Convert optgroup child data identifiers to string datatype (#6338)

Translations

• Add Esperanto translation (eo) (#5823)
• Add Punjabi translations (pa) (#5831)
• Add Telugu translations (te) (#5881)
• Updated Hungarian translations (hu) for 4.1.0 changes (#5970)
• Add Luxembourgish translation (lb) (#6131)
• Add Uyghur (Uighur) translation (ug) (#6166)
• Update Arabic translation with removeItem string (ar) (#6175)
• Add missing Traditional Chinese translations (zh-TW) (#6157)
• Update Indonesian translation (id) (#6153)
• Update Turkish translation (tr) (#6123)
• Update Romanian translation (ro) (#6190)
• Updated DE/ES/FR/PT/PT-BR translations (#6132)
• Update Polish translation (pl) (#6097, #6377)
• Update Norwegian translations (nb) (#6213)
• Update Persian/Farsi translation (fa) (#6258)
• Fix Dutch translation (nl) removing unwanted dots for noResults (#6269)
• Fix Brazilian Portuguese translation typo (#6200)
• Add missing Bosnian, Catalan, Danish, and Finnish translations (#6305)

Miscellaneous

• The amdLanguageBase option no longer has an effect because the full build does not include any dynamically loaded modules (#5815)
• Replace jQuery attr/removeAttr with native getAttribute/setAttribute/removeAttribute (#6227, #6228)
• Replace jQuery addClass with native classList.add (#6229)
• Remove jQuery from Utils and Translation modules (#6233)
• Remove use of jQuery prop() function (#6289)
• Switch NPM publishing to trusted publishing with provenance (#6405)

This release was sponsored in part by a donation from Bullet Train and many other contributors on the Open Source Collective and GitHub Sponsors.