Merge pull request microsoft#1100 from microsoft/vnext

1.4.5 release to unblock kiota

Merge pull request microsoft#1086 from microsoft/vnext

Merge dev into master

Merge pull request microsoft#1037 from microsoft/vnext

Release 1.4.4-preview1

Merge pull request microsoft#1023 from microsoft/vnext

Release 1.4.3

Merge pull request microsoft#1009 from microsoft/vnext

Merges `vnext` into `master`

Merge pull request microsoft#1002 from microsoft/vnext

Release `v1.4.1`

Merge pull request microsoft#999 from microsoft/vnext

v1.4.0 release

Merge pull request microsoft#997 from microsoft/vnext

Release libs v1.4.0-preview3

Merge pull request microsoft#979 from microsoft/vnext

Release v1.4.0-preview2