v0.57.0 - 2020-10-08

Features 🌈

• Target new windows VHD with new K8s binaries (1.19.2, 1.18.9, etc) (#3905)
• add ScaleCPULimitsToSandbox for hyperv runtimeclasses (#3889)
• allow custom containerd package for Linux nodes (#3878)
• Updating Windows VHD build files to support building for multiple OS versions (#3847)
• add support for Kubernetes v1.18.9 (#3841)
• add support for Kubernetes v1.19.2 (#3842)
• add support for Kubernetes v1.17.12 (#3840)
• update VMSS node pools (#3830)

Maintenance 🔧

• rev Linux VHDs to 2020.10.06 (#3906)
• enable VHD re-use in no outbound scenarios (#3897)

Bug Fixes 🐞

• Add azure.json path for custom cloud k8s config & Update stability timeout for Azure CNI network policy (#3895)
• fix jumpbox custom data (#3896)
• don't warn about CRI update on cluster create (#3890)
• ensure addon hostNetwork ports don't conflict (#3894)
• de-dup vnet roleAssignment deployments (#3857)
• add #EOF sentinel chars to custom search file (#3862)
• E2E scale scenario broken if update is false (#3852)

Continuous Integration 💜

• adding github actions to create nightly builds
• add containerd PR E2E tests (#3892)
• update OWNERS (#3853)

Documentation 📘

• confirm flannel + docker is not supported (#3886)
• add notes about not upgrading LB config (#3884)
• clarify that update is for node pools only (#3877)
• CLI operations (#3837)
• mark rotate-certs command as experimental (#3869)
• add v0.55.4 to Azure Stack topic page (#3846)
• remove mention about library for AKS (#3835)
• add required attribution reminder to PR template (#3826)

Maintenance 🔧

• update csi-secrets-store addon manifest and images (v0.0.9) (#3891)
• create azure.json via CSE (#3876)
• distribute apiserver.crt to control plane nodes only (#3860)
• update azure cni to 1.1.7 (#3864)
• update Dashboard addon to v2.0.4 (#3855)
• check VHD media name length before being published to Marketplace (#3799)
• remove no-op 1.15 version checks in templates (#3851)

Testing 💚

• E2E fix scale test indexing out of bounds (#3873)
• not nil defense broke logic (#3881)
• fixes for akse e2e tests (#3874)
• E2E optionally validates rotate-certs (#3866)
• add more E2E timeout tolerance (#3850)

Please report any issues here: https://github.com/Azure/aks-engine/issues/new