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
maybeComponentfunction 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