v0.37.5 - 2019-07-11

Bug Fixes 🐞

• remove availability sets in scaling up template (#1610)
• do not install clear containers runtime on the VHD (#1587)

Maintenance 🔧

• update VHD to 2019.07.10375
• re-enable k8s 1.12.7 (#1603)

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