Issue #2805205 by andrewmacpherson, michielnugter, lauriekap, BarisW, pk188, Ehud, arunkumark, SteffenR, Lendude, droplet, alexpott, xiwar: Provide screen-reader feedback when filtering by block name

Issue #2177335 by drintios, idebr, czigor, oo0shiny, bdimaggio, samiullah, alexpott: Selecting 'Disabled' does not move the block to the disabled region when there are no disabled blocks

Issue #2548195 by nod_, JohnAlbin, madhavvyas, sriharsha.uppuluri: Only use single quotes in JavaScript and update .eslintrc

Issue #2396937 by legolasbo, Vj, subhojit777, jhodgdon: "Last placed block" color confusing in Block layout page

Issue #2544066 by legolasbo, joelpittet, nod_, Ankit Agrawal: Block position not saved when below the first block of another region

Issue #2512456 by tim.plunkett, legolasbo, MattA, dawehner, googletorp, darol100, Bojhan, webchick, andypost, ivanstegic, larowlan, lauriii, LewisNyman, tkoleary, rickvug, eliza411, lunk_rat, nickrosencrans, stpaultim, Mark LaCroix: Implement the new block layout design to emphasize the primary interaction of placing a block

Issue #1305882 by dawehner, nod_, Fabianx, Steven Jones, sun, nlisgo: drupal_html_id() considered harmful; remove ajax_html_ids to use GET (not POST) AJAX requests

Issue #2422399 by aliyakhan, JCL324, mortendk, skippednote, rpayanm, tadityar, LewisNyman, joelpittet, idebr: Rewrite block.admin.css inline with our CSS standards

Issue #2154475 by tarekdj, neelam.chaudhary, droplet, nod_, lanchez, Poornima3, jamin_melville: Convert position selectors to be compatible with with jQuery native-API selector

Issue #2339151 by EclipseGc, tim.plunkett, Gábor Hojtsy, effulgentsia: Conditions / context system does not allow for multiple configurable contexts, eg. language types

Issue #2278541 by tim.plunkett, kim.pepper, Bojhan, EclipseGc: Refactor block visibility to use condition plugins.

Issue #1913510 by erich_s, jibran, scresante, nod_, mitron: Core Javascript Files Not Using Standard Indentation.