Attention 18.04-LTS users

Please use https://github.com/Azure/aks-engine/releases/tag/v0.50.2 as it has critical fixes for 18.04-LTS-backed control planes.

v0.50.0 - 2020-04-22

Bug Fixes 🐞

• don't hardcode csi enableproxy in kubeclusterconfig.json (#3127)
• idempotent systemd + disk mount for etcd (#3126)
• use full userAssignedID reference in ARM template (#3116)
• add nodeSelector for coredns-autoscaler (#3109)
• typos in JSON annotations caught by staticcheck (#3104)
• Fixed bug in condition check for dualstack (#3110)
• update cluster-proportional-autoscaler path at MCR (#3091)
• Update CSI Secrets Store Provider for Azure to 0.0.4 (#3086)
• don't skip Windows VMSS node pools during upgrade (#3083)
• retry more aggressively when install the gpu deb package. (#3065)

Code Refactoring 💎

• Create signable PS scripts (#3015)
• skip sgx driver installation if already exists in OS (#3062)

Code Style 🎶

• override linguist's default language detection (#3100)

Documentation 📘

• join the #aks-engine-users Slack channel (not #provider-azure) (#3103)
• remove docker package and choco caveat from release docs (#3099)
• get-logs proposal (#2745)

Features 🌈

• add support for Kubernetes 1.19.0-alpha.2 (#3122)
• Enable Antrea in NetworkPolicyOnly mode with Azure CNI (#3027)
• Enabling SSH on windows nodes by default (#2759)
• Updating Windows VHDs with 4B patches (#3115)
• modify container runtime data dir (#3072)
• enable CSI proxy by default when cloud-controller-manager is enabled on Windows cluster (#3080)
• Azure CNI dual stack support (#2862)
• enable multiple frontend IPs in Standard LB (#3085)
• disable dashboard addon by default (#3093)
• coredns-autoscaler (#3067)
• add support for Kubernetes 1.17.5 (#3088)
• add support for Kubernetes 1.18.2 (#3089)
• add support for Kubernetes 1.16.9 (#3087)
• disabling windows updates by default (#3073)
• "aks-engine get-logs" command (#2987)
• give metrics-server system-cluster-critical priority (#3082)
• Support Non-Azure Stack Custom Clouds with custom endpoints/root certs/sources.list (#3063)
• support cloud-node-manager on Windows clusters (#3044)
• proximity placement group support (#3056)
• generic cluster-init component (#3023)

Maintenance 🔧

• Use prod repos for containerd. (#3107)
• update go compiler to 1.14.2 (#2839)
• rev Linux VHDs to 2020.04.21 (#3123)
• updating Windows VHD to include April patches (#3101)
• remove pre-1.14 addons specs (#3081)
• use Ubuntu 18.04-LTS as default (#3070)
• remove support for Kubernetes 1.13 (#3059)]
• update azure cni version to v1.1.0 (#3075)]

Testing 💚

• really fix bad distro value in everything cluster config (#3095)
• fix bad distro value in everything cluster config (#3094)

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