- Patch #1410096 by fastangel, Gábor Hojtsy, kalman.hosszu: convert comment language code schema to langcode.

- Patch #1416392 by Gábor Hojtsy, plach, rvilar: clean up language (types) bootstrap function naming and documentation.

Issue #655048 by Gábor Hojtsy, intuited: Fixed Plural formula information blanked when importing a poorly-formed .po file.

Issue #1313300 by jwilson3, rjgoldsborough, MrHaroldA: Fixed Wrong uri in 'Add new comment' teaser link if set to COMMENT_FORM_BELOW.

Issue #652288 by Niklas Fiekas: Rewording the 'proceed with the installation' text on the installer's requirements page.

Issue #1401496 by bleen18: Fixed forum_taxonomy_term_delete() completely broken (takes  instead of  entity).

Issue #1267918 by Niklas Fiekas, darrellulm: Fixed User signature does not appear in comment preview.

Issue #1373312 by sun: Assign system_main() block to 'content' region and help block to 'help' region by default.

- Patch #1427098 by chris.leversuch: EntityFieldQuery::execute documentation - return value example doesn't work if query result is empty.

Issue #1376166 by sun: Fixed Custom logo and favicon functionality inanely tries to support absolute local file paths.

- Patch #1250800 by attiks, Jelle_S, dereine, xjm: language domain should work regardless of ports or protocols.

- Patch #540294 by Gábor Hojtsy, clemens.tolboom, Xano: node language settings from Locale to Node module.

Issue #1221276 by fietserwin, Gábor Hojtsy, sun, gumanist: Fixed locale_get_plural() only works for a single language within a request and does not work for English.

Issue #1294264 by budda, davidwhthomas: FieldUpdateForbiddenException: Cannot update a list field - better debug info.

Issue #283045 by mlncn, Jody Lynn, pwolanin, gpk: Fixed Allow top-level pages to be removed from books.

Issue #1430986 by Gábor Hojtsy, plach: Clean up naming for language negotiation configuration functions/paths.

Issue #1006042 by ksenzee, grendzy: Fixed Links outside the overlay with existing fragments are broken.

Issue #334948 by David_Rothstein, Albert Volkman: Fixed The 'default' folder is sometimes required to be writable even when installing Drupal in sites/example.com.

Issue #41595 by pillarsdotnet, m3avrck, sun et al: Fixed All pager links have an 'active' CSS class.

Issue #1250800 by attiks, Jelle_S, dereine: Fixed Language domain should work regardless of ports or protocols.