Bug Fixes

• types: async Component types (#11906) c52427b, closes #11990
• v-slot: fix scoped slot normalization combined with v-if (#12104) 38f71de, closes #12102

Features

• ssr: vue-ssr-webpack-plugin compatible with webpack 5 (#12002) 80e7730, closes #11718

Bug Fixes

• attrs: do not consider translate attribute as boolean (#11392) cd57393, closes #11392 #11391
• compiler: Allow BigInt usage in templates (#11152) c42b706, closes #11152
• compiler: avoid converting   to spaces (#11065) 55a30cf, closes #11065
• compiler: event handlers with modifiers swallowing arguments (fix #10867) (#10958) 8620706, closes #10867 #10958
• core: fix sameVnode for async component (#11107) 5260830, closes #11107
• core: remove trailing comma in function signature (#10845) 579e1ff, closes #10845 #10843
• errorHandler: async error handling for watchers (#9484) e4dea59, closes #9484
• keep-alive: cache what is really needed not the whole VNode data (#12015) e7baaa1, closes #12015
• parser: allow multiple slots with new syntax (#9785) 67825c2, closes #9785 #9781
• props: correctly warn when a provided prop is Symbol (#10529) abb5ef3, closes #10529 #10519
• props: support BigInt in props type validation (#11191) fa1f81e, closes #11191
• slot: add a function to return the slot fallback content (#12014) ce457f9, closes #12014
• ssr: avoid missing files in manifest (#11609) b97606c, closes #11609
• ssr: inheritAttrs false adds attributes to html (#11706) 7e5dc6b, closes #11706
• ssr: textarea keeps undefined/null values (#11121) b8bd149, closes #11121
• types: add types for Vue.util.warn function (#11964) e0274e4, closes #11964 /github.com/vuejs/vue/blob/v2.6.12/src/core/util/debug.js#L18-L26
• types: allow string for watch handlers in options (#10396) 668e1e6, closes #10396
• types: allow symbol & boolean for vnode key (#11914) 5c459f0, closes #11914
• types: changed expression type to optional string (#11189) 7c75462, closes #11189 #10871
• types: make $refs undefined possible (#11112) 2b93e86, closes #11112
• v-on: avoid events with empty keyCode (autocomplete) (#11326) c6d7a6f, closes #11326
• force update between two components with and without slot (#11795) 77b5330, closes #11795
• give correct namespace in foreignObject (#11576) af5e05d, closes #11576 #11575
• handle async placeholders in normalizeScopedSlot (#11963) af54514, closes #11963
• warns: modify maybeComponent function in parser (#10167) 0603ff6, closes #10167 #10152
• pause dep collection during immediate watcher invocation (#11943) 987f322, closes #11943
• v-pre: do not alter attributes (#10088) 0664cb0, closes #10088 #10087
• vdom: avoid executing root level script tags (#11487) fb16d7b, closes #11487 #11483
• warn: better message with no constructors props (#9241) 6940131, closes #9241

Features

• warn: warn computed conflict with methods (#10119) 3ad60fe, closes #10119
• warns: avoid warning native modifiers on dynamic components (#11052) 3d46692, closes #11052

Performance Improvements

• preinitialize typeCheck RegExp (#10990) 2488a6a, closes #10990

Security Fixes

• Bump vue-server-renderer's dependency of serialize-javascript to 2.1.2

Bug Fixes

• types: fix prop constructor type inference (#10779) 4821149, closes #10779
• fix function expression regex (#9922) 569b728, closes #9922 #9920
• compiler: Remove the warning for valid v-slot value (#9917) 085d188, closes #9917
• types: fix global namespace declaration for UMD bundle (#9912) ab50e8e, closes #9912

Bug Fixes

• codegen: support named function expression in v-on (#9709) 3433ba5, closes #9709 #9707
• core: cleanup timeouts for async components (#9649) 02d21c2, closes #9649 #9648
• core: only unset dom prop when not present f11449d, closes #9650
• core: use window.performance for compatibility in JSDOM (#9700) 653c74e, closes #9700 #9698
• scheduler: revert timeStamp check 22790b2, closes #9729 #9632
• slots: fix slots not updating when passing down normal slots as $scopedSlots ebc1893, closes #9699
• types: allow using functions on the PropTypes (#9733) df4af4b, closes #9733 #9692
• types: support string type for style in VNode data (#9728) 982d5a4, closes #9728 #9727

Bug Fixes

• event timeStamp check for Qt 7591b9d, closes #9681
• should consider presence of normal slots when caching normalized scoped slots 9313cf9, closes #9644
• should not swallow user catch on rejected promise in methods 7186940, closes #9694
• should use fallback for scoped slots with single falsy v-if 781c705, closes #9658
• ssr: not push non-async css files into map (#9677) d282400, closes #9677
• v-bind object should be overridable by single bindings (#9653) 0b57380, closes #9653 #9641
• compiler: whitespace: 'condense' should honor pre tag as well (#9660) f1bdd7f, closes #9660
• scheduler: fix getNow check in IE9 (#9647) da77d6a, closes #9647 #9632
• scheduler: getNow detection can randomly fail (#9667) ef2a380, closes #9667
• ssr: fix nested async functional componet rendering (#9673) 8082d2f, closes #9673 #9643
• transition: fix appear check for transition wrapper components (#9668) 4de4649, closes #9668

Bug Fixes

• avoid compression of unicode sequences by using regexps (#9595) 7912f75, closes #9595 #9456
• fix modifier parsing for dynamic argument with deep path (#9585) 060c3b9, closes #9585 #9577
• further adjust max stack size 571a488, closes #9562
• handle async component when parent is toggled before resolve (#9572) ed34113, closes #9572 #9571
• scoped slots dynamic check should include v-for on element itself 2277b23, closes #9596
• compiler: set end location for incomplete elements (#9598) cbad54a, closes #9598
• types: allow scoped slots to return a single VNode (#9563) 241eea1, closes #9563
• types: update this for nextTick api (#9541) f333016, closes #9541

Bug Fixes

• avoid errors thrown during dom props update 8a80a23, closes #9459
• avoid possible infinite loop by accessing observables in error handler (#9489) ee29e41, closes #9489
• ensure generated scoped slot code is compatible with 2.5 7ec4627, closes #9545
• ensure scoped slots update in conditional branches d9b27a9, closes #9534
• scoped slots should update when inside v-for 8f004ea, closes #9506
• #9511: avoid promise catch multiple times (#9526) 2f3020e, closes #9511 #9526 #9511 #9511 #9511
• compiler: handle negative length in codeframe repeat 7a8de91

Bug Fixes

• ensure scoped slot containing passed down slot content updates properly 21fca2f
• fix keyCode check for Chrome autofill fake key events 29c348f, closes #9441

Bug Fixes

• allow passing multiple arguments to scoped slot e7d49cd, closes #9468
• bail out of event blocking for iOS bug 0bad7e2, closes #9462
• do not cache scoped slots when mixed with normal slots 060686d

Performance Improvements

• cache result from functional ctx.slots() calls 7a0dfd0
• skip scoped slots normalization when possible 099f3ba

Bug Fixes

• avoid breaking avoriaz edge case 9011b83
• avoid logging same error twice when thrown by user in global handler ca57920, closes #9445
• empty scoped slot should return undefined 57bc80a, closes #9452
• expose v-slot slots without scope on this.$slots 0e8560d, closes #9421 #9458
• new syntax slots without scope should also be exposed on functional slots() 8a80086