Bump required Chef Infra Client to >= 15.3

- Remove Ubuntu 16.04 testing now that it's EOL

Signed-off-by: Lance Albertson <[email protected]>

.github/workflows/ci.yml

@@ -45,7 +45,6 @@ jobs:
           - 'amazonlinux-2'
           - 'centos-7'
           - 'centos-8'
-          - 'ubuntu-1604'
           - 'ubuntu-1804'
           - 'ubuntu-2004'
         suite:

CHANGELOG.md

@@ -6,7 +6,9 @@ and this project adheres to [Semantic Versioning](https://semver.org/spec/v2.0.0
 
 ## Unreleased
 
-- resolved cookstyle error: resources/memcached_instance.rb:1:1 refactor: `Chef/Deprecations/ResourceWithoutUnifiedTrue`
+- Chef 17 updates: enable `unified_mode` on all resources
+- Bump required Chef Infra Client to >= 15.3
+- Remove Ubuntu 16.04 testing now that it's EOL
 
 ## 6.1.0 (2020-06-18)
 

README.md

@@ -18,7 +18,7 @@ Provides a custom resource for installing instances of memcached. Also ships wit
 
 ### Chef Infra Client
 
-- Chef Infra Client 13+
+- Chef Infra Client 15.3+
 
 ## Attributes
 

kitchen.dokken.yml

@@ -45,13 +45,6 @@ platforms:
       image: dokken/centos-8
       pid_one_command: /usr/lib/systemd/systemd
 
-  - name: ubuntu-16.04
-    driver:
-      image: dokken/ubuntu-16.04
-      pid_one_command: /bin/systemd
-      intermediate_instructions:
-        - RUN /usr/bin/apt-get update
-
   - name: ubuntu-18.04
     driver:
       image: dokken/ubuntu-18.04

kitchen.yml

@@ -20,7 +20,6 @@ platforms:
   - name: amazonlinux-2
   - name: centos-7
   - name: centos-8
-  - name: ubuntu-16.04
   - name: ubuntu-18.04
   - name: ubuntu-20.04
 

metadata.rb

@@ -5,7 +5,7 @@
 description       'Installs memcached and includes memcached_instance resource for setting up memcached instances'
 source_url        'https://github.com/sous-chefs/memcached'
 issues_url        'https://github.com/sous-chefs/memcached/issues'
-chef_version      '>= 13.0'
+chef_version      '>= 15.3'
 version           '6.1.0'
 
 %w(ubuntu debian redhat centos suse opensuse opensuseleap scientific oracle amazon zlinux).each do |os|