polymer

• Fix an accidentally quadratic reduce(concat) in FlattenedNodesObserver (#5739) 3c2f7591

https://github.com/Polymer/polymer/compare/v3.5.1...v3.5.2

• [ci skip] bump to 3.4.1 (commit)

• Add type for DomApiNative's setAttribute method. (commit)

• Remove gen-typescript-declarations; manually add LegacyElementMixin's setAttribute type. (commit)

• Remove "DO NOT EDIT" warning com...

New global settings

This update to Polymer includes some new global settings:

• legacyUndefined / setLegacyUndefined

  What does it do? This setting reverts how computed properties handle undefined values to the Polymer 1 behavior: when enabled, computed properties will only be recomputed if none of th...

• [ci skip] bump to 3.3.1 11f1f139
• Merge pull request #5594 from rslawik/patch-1 e477a6f3
• Merge pull request #5600 from Polymer/TimvdLippe-patch-2 dc20feca
• Remove TimvdLippe from CODEOWNERS b99c2997
• Merge pull request #5598 from Polymer/polymer-dom-api 8c69fb87
• Add node field to PolymerDomApi 15747c83
• Improve types for the template field on Polymer elements. (#5596) 4274bc...

• [ci skip] Update version to 3.3.0 dd7c0d70
• Don't import/export from the same file twice (#5562) 94585c31
• Merge pull request #5559 from Polymer/compile 9c7492d2
• Add @override, remove @attribute/@group/@hero/@homepage ed7709f6
• Merge pull request #5558 from Polymer/compile 8af0ec4a
• Closure compilation tweaks 15090f26
• Merge pull request #5557 from Polymer/compile 1b8263fc -...