v1.17.0

Features

• cfnspec: update CloudFormation Resource Specification to v8.0.0 (#5031) (1896de2)
• cli: adding new option to cdk deploy to indicate whether ChangeSet should be executed (#4852) (c02c9e5), closes #4739
• custom-resources: python handler skeleton in readme (#4977) (f0a62fd
• upgrade all uses of node8.10 lambda runtime to node10.x (#5075) (7a3a3b1), #4655 #4653 #4642
• upgrade to jsii 0.20.7 (#5103) (5ebc633), closes aws/aws-cdk#4316 #994 aws/aws-cdk#5066 #904 #925

Bug Fixes

• cli: cdk bootstrap is broken due to --no-execute (#5092) (7acc588)
• cli: cdk version prints to STDERR instead of STDOUT like --version (#5095) (ae5170c), closes #4720
• core: unable to find stack by name using the cli in legacy mode (#4998) (26bba19), closes #4895 #4997
• custom-resources: flatten objects with null values in AwsCustomResource (#5073) (f4ea264), closes #5061
• ecs-patterns: Fix issue related to protocol being passed to target group (#4988) (a257d4d)
• init-templates: update init templates for csharp and java (#5059) (2d92ab3)
• logs: cannot use same Lambda for multiple SubscriptionFilters (#4975) (94f5017), closes #4951