diff --git a/README.md b/README.md
index 1a37002e6..bace8512d 100644
--- a/README.md
+++ b/README.md
@@ -22,35 +22,16 @@
 
     gem install rspec-puppet
 
-> Note for ruby 1.8 users:  while rspec-puppet itself supports ruby 1.8, you'll
-> need to pin rspec itself to `~> 3.1.0`, as later rspec versions do not work
-> on old rubies anymore.
-
 ## Starting out with a new module
 
 When you start out on a new module, create a metadata.json file for your module and then run `rspec-puppet-init` to create the necessary files to configure rspec-puppet for your module's tests.
 
-
-## Configure manifests for Puppet 4
-
-With Puppet 3, the manifest is set to `$manifestdir/site.pp`. However Puppet 4 defaults to an empty value. In order to test manifests you will need to set appropriate settings.
-
-Puppet configuration reference for `manifest` can be found online:
-
-* Puppet 3: https://docs.puppet.com/puppet/3.8/reference/configuration.html#manifest
-* Puppet 4: https://docs.puppet.com/puppet/4.8/reference/configuration.html#manifest
-
 Configuration is typically done in a `spec/spec_helper.rb` file which each of your spec will require. Example code:
 ```ruby
-# /spec
-base_dir = File.dirname(File.expand_path(__FILE__))
-
 RSpec.configure do |c|
-  c.module_path     = File.join(base_dir, 'fixtures', 'modules')
-  c.manifest_dir    = File.join(base_dir, 'fixtures', 'manifests')
-  c.manifest        = File.join(base_dir, 'fixtures', 'manifests', 'site.pp')
+  c.module_path     = File.join(File.dirname(File.expand_path(__FILE__)), 'fixtures', 'modules')
   c.environmentpath = File.join(Dir.pwd, 'spec')
-
+  c.manifest        = File.join(File.dirname(File.expand_path(__FILE__)), 'fixtures', 'manifests', 'site.pp')
   # Coverage generation
   c.after(:suite) do
     RSpec::Puppet::Coverage.report!
@@ -69,54 +50,46 @@ RSpec.configure do |c|
 end
 ```
 
-#### manifest\_dir
-Type   | Default  | Puppet Version(s)
------- | -------- | -----------------
-String | Required | 2.x, 3.x
-
-The path to the directory containing your basic manifests like `site.pp`.
-
 #### module\_path
 Type   | Default  | Puppet Version(s)
 ------ | -------- | ------------------
-String | Required | 2.x, 3.x, 4.x, 5.x
+String | Required | any
 
 The path to the directory containing your Puppet modules.
 
 #### default\_facts
 Type | Default | Puppet Version(s)
 ---- | ------- | ------------------
-Hash | `{}`    | 2.x, 3.x, 4.x, 5.x
+Hash | `{}`    | any
 
 A hash of default facts that should be used for all the tests.
 
 #### hiera\_config
 Type   | Default       | Puppet Version(s)
 ------ | ------------- | -----------------
-String | `"/dev/null"` | 3.x, 4.x, 5.x
+String | `"/dev/null"` | any
 
 The path to your `hiera.yaml` file (if used).
 
 #### default\_node\_params
 Type | Default | Puppet Version(s)
 ---- | ------- | -----------------
-Hash | `{}`    | 4.x, 5.x
+Hash | `{}`    | any
 
 A hash of default node parameters that should be used for all the tests.
 
 #### default\_trusted\_facts
 Type | Default | Puppet Version(s)
 ---- | ------- | -----------------
-Hash | `{}`    | 4.x, 5.x
+Hash | `{}`    | any
 
 A hash of default trusted facts that should be used for all the tests
-(available in the manifests as the `$trusted` hash). In order to use this, the
-`trusted_node_data` setting must be set to `true`.
+(available in the manifests as the `$trusted` hash).
 
 #### trusted\_node\_data
 Type    | Default | Puppet Version(s)
 ------- | ------- | -----------------
-Boolean | `false` | >=3.4, 4.x, 5.x
+Boolean | `false` | any
 
 Configures rspec-puppet to use the `$trusted` hash when compiling the
 catalogues.
@@ -124,7 +97,7 @@ catalogues.
 #### trusted\_server\_facts
 Type    | Default | Puppet Version(s)
 ------- | ------- | -----------------
-Boolean | `false` | >=4.3, 5.x
+Boolean | `false` | any
 
 Configures rspec-puppet to use the `$server_facts` hash when compiling the
 catalogues.
@@ -132,62 +105,28 @@ catalogues.
 #### confdir
 Type   | Default         | Puppet Version(s)
 ------ | --------------- | ------------------
-String | `"/etc/puppet"` | 2.x, 3.x, 4.x, 5.x
+String | `"/etc/puppet"` | any
 
 The path to the main Puppet configuration directory.
 
 #### config
 Type   | Default                | Puppet Version(s)
 ------ | ---------------------- | ------------------
-String | Puppet's default value | 2.x, 3.x, 4.x, 5.x
+String | Puppet's default value | any
 
 The path to `puppet.conf`.
 
-#### manifest
-Type   | Default                | Puppet Version(s)
------- | ---------------------- | -----------------
-String | Puppet's default value | 2.x, 3.x
-
-The entry-point manifest for Puppet, usually `$manifest_dir/site.pp`.
-
-#### template\_dir
-Type   | Default | Puppet Version(s)
------- | ------- | -----------------
-String | `nil`   | 2.x, 3.x
-
-The path to the directory that Puppet should search for templates that are
-stored outside of modules.
-
 #### environmentpath
 Type   | Default                               | Puppet Version(s)
 ------ | ------------------------------------- | -----------------
-String | `"/etc/puppetlabs/code/environments"` | 4.x, 5.x
+String | `"/etc/puppetlabs/code/environments"` | any
 
 The search path for environment directories.
 
-#### parser
-Type   | Default     | Puppet Version(s)
------- | ----------- | -----------------
-String | `"current"` | >= 3.2
-
-This switches between the 3.x (`current`) and 4.x (`future`) parsers.
-
-#### ordering
-Type   | Default        | Puppet Version(s)
------- | -------------- | -----------------
-String | `"title-hash"` | >= 3.3, 4.x, 5.x
-
-How unrelated resources should be ordered when applying a catalogue.
- * `manifest` - Use the order in which the resources are declared in the
-   manifest.
- * `title-hash` - Order the resources randomly, but in a consistent manner
-   across runs (the order will only change if the manifest changes).
- * `random` - Order the resources randomly.
-
 #### strict\_variables
 Type    | Default | Puppet Version(s)
 ------- | ------- | -----------------
-Boolean | `false` | >= 3.5, 4.x, 5.x
+Boolean | `false` | any
 
 Makes Puppet raise an error when it tries to reference a variable that hasn't
 been defined (not including variables that have been explicitly set to
@@ -196,7 +135,7 @@ been defined (not including variables that have been explicitly set to
 #### stringify\_facts
 Type    | Default | Puppet Version(s)
 ------- | ------- | -----------------
-Boolean | `true`  | >= 3.3, 4.x, 5.x
+Boolean | `true`  | any
 
 Makes rspec-puppet coerce all the fact values into strings (matching the
 behaviour of older versions of Puppet).
@@ -204,7 +143,7 @@ behaviour of older versions of Puppet).
 #### enable\_pathname\_stubbing
 Type    | Default | Puppet Version(s)
 ------- | ------- | ------------------
-Boolean |`false`  | 2.x, 3.x, 4.x, 5.x
+Boolean |`false`  | any
 
 Configures rspec-puppet to stub out `Pathname#absolute?` with it's own
 implementation. This should only be enabled if you're running into an issue
@@ -214,7 +153,7 @@ functions, etc) that use `Pathname#absolute?`.
 #### setup\_fixtures
 Type    | Default | Puppet Version(s)
 ------- | ------- | ------------------
-Boolean | `true`  | 2.x, 3.x, 4.x, 5.x
+Boolean | `true`  | any
 
 Configures rspec-puppet to automatically create a link from the root of your
 module to `spec/fixtures/<module name>` at the beginning of the test run.
@@ -222,7 +161,7 @@ module to `spec/fixtures/<module name>` at the beginning of the test run.
 #### derive\_node\_facts\_from\_nodename
 Type    | Default | Puppet Version(s)
 ------- | ------- | -----------------
-Boolean | `true`  | 2.x, 3.x, 4.x, 5.x
+Boolean | `true`  | any
 
 If `true`, rspec-puppet will override the `fdqn`, `hostname`, and `domain`
 facts with values that it derives from the node name (specified with
@@ -235,7 +174,7 @@ setting to `false`.
 #### facter\_implementation
 Type    | Default  | Puppet Version(s)
 ------- | -------- | -----------------
-String  | `facter` | 6.25+, 7.12+
+String  | `facter` | any
 
 Configures rspec-puppet to use a specific Facter implementation for running
 unit tests. If the `rspec` implementation is set and Puppet does not support
@@ -699,8 +638,6 @@ RSpec.configure do |c|
 end
 ```
 
-**NOTE** Setting top-scope variables is not supported in Puppet < 3.0.
-
 #### Specifying extra code to load (pre-conditions)
 
 If the manifest being tested relies on another class or variables to be set, these can be added via
@@ -752,7 +689,7 @@ let(:module_path) { '/path/to/your/module/dir' }
 
 #### Specifying trusted facts
 
-When testing with Puppet >= 4.3 the trusted facts hash will have the standard trusted fact keys
+The trusted facts hash will have the standard trusted fact keys
 (certname, domain, and hostname) populated based on the node name (as set with `:node`).
 
 By default, the test environment contains no custom trusted facts (as usually obtained
@@ -777,8 +714,7 @@ end
 
 #### Specifying trusted external data
 
-When testing with Puppet >= 6.14, the trusted facts hash will have an additional `external`
-key for trusted external data.
+The trusted facts hash will have an `external` key for trusted external data.
 
 By default, the test environment contains no trusted external data (as usually obtained from
 trusted external commands and found in the `external` key). If you need to test against specific
diff --git a/docs/documentation/configuration/index.md b/docs/documentation/configuration/index.md
index 3d2510250..1ea09e655 100644
--- a/docs/documentation/configuration/index.md
+++ b/docs/documentation/configuration/index.md
@@ -19,15 +19,10 @@ end
 {% endhighlight %}
 
 ## Required settings
-### manifest\_dir
-**Type:** String<br />
-**Puppet Version(s):** 2.x, 3.x
-
-The path to the directory containing your basic manifests like `site.pp`.
 
 ### module\_path
 **Type:** String<br />
-**Puppet Version(s):** 2.x, 3.x, 4.x, 5.x
+**Puppet Version(s):** any
 
 The path to the directory containing the Puppet modules.
 
@@ -35,44 +30,36 @@ The path to the directory containing the Puppet modules.
 ### default\_facts
 **Type:** Hash<br />
 **Default:** None<br />
-**Puppet Version(s):** 2.x, 3.x, 4.x, 5.x
+**Puppet Version(s):** any
 
 A hash of default facts that should be used for all the tests.
 
 ### hiera\_config
 **Type:** String<br />
 **Default:** `/dev/null`<br />
-**Puppet Version(s):** 3.x, 4.x, 5.x
+**Puppet Version(s):** any
 
 The path to your `hiera.yaml` file (if used).
 
 ### default\_node\_params
 **Type:** Hash<br />
 **Default:** None<br />
-**Puppet Version(s):** 4.x, 5.x
+**Puppet Version(s):** any
 
 A hash of default node parameters that should be used for all the tests.
 
 ### default\_trusted\_facts
 **Type:** Hash<br />
 **Default:** None<br />
-**Puppet Version(s):** 4.x, 5.x
+**Puppet Version(s):** any
 
 A hash of default trusted facts that should be used for all the tests
-(available in the manifests as `$trusted`). In order to use this,
-`trusted_node_data` must also be set to `true`.
-
-### trusted\_node\_data
-**Type:** Boolean<br />
-**Default:** `false`<br />
-**Puppet Version(s):** ~> 3.4, 4.x, 5.x
-
-Makes rspec-puppet use the `$trusted` hash when testing catalogues.
+(available in the manifests as `$trusted`).
 
 ### setup\_fixtures
 **Type:** Boolean<br />
 **Default:** `true`<br />
-**Puppet Version(s):** 2.x, 3.x, 4.x, 5.x
+**Puppet Version(s):** any
 
 Configures rspec-puppet to automatically create a link from the root of your
 module to `spec/fixtures/<module name>` at the beginning of the test run.
@@ -80,7 +67,7 @@ module to `spec/fixtures/<module name>` at the beginning of the test run.
 ### trusted\_server\_facts
 **Type:** Boolean<br />
 **Default:** `false`<br />
-**Puppet Version(s):** >= 4.3, 5.x
+**Puppet Version(s):** any
 
 Configures rspec-puppet to use the `$server_facts` hash when compiling the
 catalogues.
@@ -92,7 +79,7 @@ determining the values itself, but if you need to override them you can.
 ### confdir
 **Type:** String<br />
 **Default:** `/etc/puppet`<br />
-**Puppet Version(s):** 2.x, 3.x, 4.x, 5.x
+**Puppet Version(s):** any
 
 The path to the main Puppet configuration directory.
 
@@ -103,40 +90,17 @@ for further details.
 ### config
 **Type:** String<br />
 **Default:** Puppet's default value<br />
-**Puppet Version(s):** 2.x, 3.x, 4.x, 5.x
+**Puppet Version(s):** any
 
 The path to `puppet.conf`.
 
 See the [Puppet documentation](https://docs.puppet.com/puppet/latest/configuration.html#config)
 for further details.
 
-### manifest
-**Type:** String<br />
-**Default:** Puppet's default value<br />
-**Puppet Version(s):** 2.x, 3.x
-
-The entry-point manifest for Puppet, usually `<manifest_dir>/site.pp`.
-
-See the [Puppet
-documentation](https://docs.puppet.com/puppet/latest/configuration.html#manifest)
-for further details.
-
-### template\_dir
-**Type**: String<br />
-**Default:** None<br />
-**Puppet Version(s):** 2.x, 3.x
-
-The path to the directory that Puppet should search for templates stored
-outside of modules.
-
-See the [Puppet
-documentation](https://docs.puppet.com/puppet/3.8/deprecated_settings.html#templatedir)
-for further details.
-
 ### environmentpath
 **Type:** String<br />
 **Default:** `/etc/puppetlabs/code/environments`<br />
-**Puppet Version(s):** 4.x, 5.x
+**Puppet Version(s):** any
 
 The search path for environment directories.
 
@@ -144,38 +108,10 @@ See the [Puppet
 documentation](https://docs.puppet.com/puppet/latest/configuration.html#environmentpath)
 for further details.
 
-### parser
-**Type:** String<br />
-**Default:** `current`<br />
-**Puppet Version(s):** ~> 3.2
-
-This switches between the 3.x (`current`) and 4.x (`future`) parsers.
-
-See the [Puppet
-documentation](https://docs.puppet.com/puppet/3.8/deprecated_settings.html#parser)
-for further details.
-
-### ordering
-**Type:** String<br />
-**Default:** `title-hash`<br />
-**Puppet Version(s):** ~> 3.3, 4.x, 5.x
-
-How unrelated resources should be ordered when applying a catalogue.
- * `manifest` - Use the order in which the resources are declared in the
-   manifest.
- * `title-hash` - Order the resources randomly, but in a consistent manner
-   across runs (the order will only change if the code changes).
- * `random` - Order the resources randomly (ideal for finding resources that
-   do not have explicit dependencies).
-
-See the [Puppet
-documentation](https://docs.puppet.com/puppet/latest/configuration.html#ordering)
-for further details.
-
 ### strict\_variables
 **Type:** Boolean<br />
 **Default:** `false`<br />
-**Puppet Version(s):** ~> 3.5, 4.x, 5.x
+**Puppet Version(s):** any
 
 Makes Puppet raise an error when it tries to reference a variable that hasn't
 been defined (not including variables that have been explicitly set to
@@ -184,7 +120,7 @@ been defined (not including variables that have been explicitly set to
 ### stringify\_facts
 **Type:** Boolean<br />
 **Default:** `true`<br />
-**Puppet Version(s):** ~> 3.3, 4.x, 5.x
+**Puppet Version(s):** any
 
 Makes rspec-puppet coerce all the fact values into strings (matching the
 behaviour of older versions of Puppet).
@@ -192,7 +128,7 @@ behaviour of older versions of Puppet).
 ### enable\_pathname\_stubbing
 **Type:** Boolean<br />
 **Default:** `false`<br />
-**Puppet Version(s):** 2.x, 3.x, 4.x, 5.x
+**Puppet Version(s):** any
 
 Configures rspec-puppet to stub out `Pathname#absolute?` with its own
 implementation. This should only be enabled if you're running into an issue
@@ -202,7 +138,7 @@ functions, etc) that use `Pathname#absolute?`.
 ### derive\_node\_facts\_from\_nodename
 **Type:** Boolean<br />
 **Default:** `true`<br />
-**Puppet Version(s):** 2.x, 3.x, 4.x, 5.x
+**Puppet Version(s):** any
 
 If `true`, rspec-puppet will override the `fdqn`, `hostname`, and `domain`
 facts with values that it derives from the node name (specified with
@@ -215,7 +151,7 @@ setting to `false`.
 ### vendormoduledir
 **Type:** String<br />
 **Default:** `'/dev/null'` (or `'c:/nul/'` on Windows)
-**Puppet Version(s):** 6.x
+**Puppet Version(s):** any
 
 The path to the directory containing vendored modules. Almost always
 unnecessary in a testing environment.
@@ -223,7 +159,7 @@ unnecessary in a testing environment.
 ### basemodulepath
 **Type:** String<br />
 **Default:** `'/dev/null'` (or `'c:/nul/'` on Windows)
-**Puppet Version(s):** 6.x
+**Puppet Version(s):** any
 
 The search path for global modules. Almost always unnecessary in a testing
 environment.
@@ -231,7 +167,7 @@ environment.
 ### disable_module_hiera
 **Type:** Boolean<br />
 **Default:** `false`<br />
-**Puppet Version(s):** 4.9+, 5.x, 6.x
+**Puppet Version(s):** any
 
 Enabling this will prevent Puppet from using module-layer Hiera data entirely.
 This includes the module being tested as well as any fixture modules.
@@ -240,7 +176,7 @@ The end effect is that only Hiera data from the global `:hiera_config` parameter
 ### fixture_hiera_configs
 **Type:** Hash<br />
 **Default:** `{}`<br />
-**Puppet Version(s):** 4.9+, 5.x, 6.x
+**Puppet Version(s):** any
 
 A hash of module names and their respective module-layer Hiera config file paths.
 This can be used to override the path to the module-layer hiera.yaml
@@ -248,14 +184,14 @@ This can be used to override the path to the module-layer hiera.yaml
 ### use_fixture_spec_hiera
 **Type:** Boolean<br />
 **Default:** `false`<br />
-**Puppet Version(s):** 4.9+, 5.x, 6.x
+**Puppet Version(s):** any
 
 Enabling this will prevent Puppet from using the module-layer Hiera config file and instead search the module spec folder for a file named hiera.yaml.
 
 ### fallback_to_default_hiera
 **Type:** Boolean<br />
 **Default:** `true`<br />
-**Puppet Version(s):** 4.9+, 5.x, 6.x
+**Puppet Version(s):** any
 
 A hash of module names and their respective module-layer Hiera config file paths.
 This can be used to override the path to the module-layer hiera.yaml.
diff --git a/docs/documentation/coverage/index.md b/docs/documentation/coverage/index.md
index fba690dc2..b147ffa73 100644
--- a/docs/documentation/coverage/index.md
+++ b/docs/documentation/coverage/index.md
@@ -56,16 +56,6 @@ If this percentage is not achieved, a test failure will be raised.
 Resources declared outside of the module being tested (i.e. resources added by
 module dependencies) are automatically excluded from the coverage report.
 
-<div class="callout-block callout-info">
-<div class="icon-holder"><i class="fa fa-info-circle"></i></div>
-<div class="content">
-Prior to Puppet 4.6.0, resources created by functions
-(<code>create_resources</code>, <code>ensure_packages</code> etc) did not have
-the required information in them to determine which manifest they came from and
-so can not be excluded from the coverage report.
-</div>
-</div>
-
 To exclude other resources from the coverage reports, for example to avoid `anchor`s,
 use the `add_filter(type, title)` and `add_filter_regex(type, regex)` methods:
 
diff --git a/docs/documentation/setup/index.md b/docs/documentation/setup/index.md
index eb0d10970..dd5820ec8 100644
--- a/docs/documentation/setup/index.md
+++ b/docs/documentation/setup/index.md
@@ -82,11 +82,9 @@ content.
 {% highlight ruby %}
 require 'rspec-puppet'
 
-fixture_path = File.expand_path(File.join(__FILE__, '..', 'fixtures'))
-
 RSpec.configure do |c|
-  c.module_path = File.join(fixture_path, 'modules')
-  c.manifest_dir = File.join(fixture_path, 'manifests')
+  c.environmentpath = __dir__
+  c.module_path = File.join(__dir__, 'fixtures', 'modules')
 end
 {% endhighlight %}
 
diff --git a/lib/rspec-puppet.rb b/lib/rspec-puppet.rb
index 887eb1075..2588da4a5 100644
--- a/lib/rspec-puppet.rb
+++ b/lib/rspec-puppet.rb
@@ -36,9 +36,7 @@ def self.current_example
 RSpec.configure do |c|
   c.add_setting :environmentpath, default: Puppet::Util::Platform.actually_windows? ? 'c:/nul/' : '/dev/null'
   c.add_setting :module_path, default: nil
-  c.add_setting :manifest_dir, default: nil
   c.add_setting :manifest, default: nil
-  c.add_setting :template_dir, default: nil
   c.add_setting :config, default: nil
   c.add_setting :confdir, default: Puppet::Util::Platform.actually_windows? ? 'c:/nul/' : '/dev/null'
   c.add_setting :default_facts, default: {}
@@ -47,9 +45,6 @@ def self.current_example
   c.add_setting :default_trusted_external_data, default: {}
   c.add_setting :facter_implementation, default: :facter
   c.add_setting :hiera_config, default: Puppet::Util::Platform.actually_windows? ? 'c:/nul/' : '/dev/null'
-  c.add_setting :parser, default: 'current'
-  c.add_setting :trusted_node_data, default: false
-  c.add_setting :ordering, default: 'title-hash'
   c.add_setting :stringify_facts, default: true
   c.add_setting :strict_variables, default: false
   c.add_setting :setup_fixtures, default: true
@@ -63,17 +58,6 @@ def self.current_example
   c.add_setting :use_fixture_spec_hiera, default: false
   c.add_setting :fallback_to_default_hiera, default: true
 
-  c.instance_eval do
-    def trusted_server_facts
-      @trusted_server_facts.nil? ? false : @trusted_server_facts
-    end
-
-    def trusted_server_facts=(value)
-      @trusted_server_facts = value
-      adapter&.setup_puppet(RSpec::Puppet.current_example)
-    end
-  end
-
   c.before(:all) do
     RSpec::Puppet::Setup.safe_setup_directories(nil, false) if RSpec.configuration.setup_fixtures?
   end
diff --git a/lib/rspec-puppet/adapters.rb b/lib/rspec-puppet/adapters.rb
index 0cf9904d2..eb1128f41 100644
--- a/lib/rspec-puppet/adapters.rb
+++ b/lib/rspec-puppet/adapters.rb
@@ -12,12 +12,6 @@ class Base
       # executing RSpec context. When a setting is specified both in the global configuration and in
       # the example group, the setting in the example group is preferred.
       #
-      # @example Configuring a Puppet setting from a global RSpec configuration value
-      #   RSpec.configure do |config|
-      #     config.parser = "future"
-      #   end
-      #   # => Puppet[:parser] will be future
-      #
       # @example Configuring a Puppet setting from within an RSpec example group
       #   RSpec.describe 'my_module::my_class', :type => :class do
       #     let(:module_path) { "/Users/luke/modules" }
@@ -42,6 +36,19 @@ class Base
       # @param example_group [RSpec::Core::ExampleGroup] The RSpec context to use for local settings
       # @return [void]
       def setup_puppet(example_group)
+        case RSpec.configuration.facter_implementation.to_sym
+        when :rspec
+          # Lazily instantiate FacterTestImpl here to optimize memory
+          # allocation, as the proc will only be called if FacterImpl is unset
+          set_facter_impl(proc { RSpec::Puppet::FacterTestImpl.new })
+        when :facter
+          set_facter_impl(Facter)
+        else
+          raise "Unsupported facter_implementation '#{RSpec.configuration.facter_implementation}'"
+        end
+
+        Puppet.runtime[:facter] = FacterImpl
+
         settings = settings_map.map do |puppet_setting, rspec_setting|
           [puppet_setting, get_setting(example_group, rspec_setting)]
         end.flatten
@@ -56,82 +63,14 @@ def setup_puppet(example_group)
           end
         end
 
-        if Puppet.settings.respond_to?(:initialize_app_defaults)
-          Puppet.settings.initialize_app_defaults(settings_hash)
+        Puppet.settings.initialize_app_defaults(settings_hash)
 
-          # Forcefully apply the environmentpath setting instead of relying on
-          # the application defaults as Puppet::Test::TestHelper automatically
-          # sets this value as well, overriding our application default
-          Puppet.settings[:environmentpath] = settings_hash[:environmentpath] if settings_hash.key?(:environmentpath)
-        else
-          # Set settings the old way for Puppet 2.x, because that's how
-          # they're defaulted in that version of Puppet::Test::TestHelper and
-          # we won't be able to override them otherwise.
-          settings_hash.each do |setting, value|
-            Puppet.settings[setting] = value
-          end
-        end
+        # Forcefully apply the environmentpath setting instead of relying on
+        # the application defaults as Puppet::Test::TestHelper automatically
+        # sets this value as well, overriding our application default
+        Puppet.settings[:environmentpath] = settings_hash[:environmentpath] if settings_hash.key?(:environmentpath)
 
         @environment_name = example_group.environment
-      end
-
-      def get_setting(example_group, rspec_setting)
-        if example_group.respond_to?(rspec_setting)
-          example_group.send(rspec_setting)
-        else
-          RSpec.configuration.send(rspec_setting)
-        end
-      end
-
-      def catalog(node, exported)
-        if exported
-          # Use the compiler directly to skip the filtering done by the indirector
-          Puppet::Parser::Compiler.compile(node).filter { |r| !r.exported? }
-        else
-          Puppet::Resource::Catalog.indirection.find(node.name, use_node: node)
-        end
-      end
-
-      def current_environment
-        Puppet::Node::Environment.new(@environment_name)
-      end
-
-      def settings_map
-        [
-          %i[modulepath module_path],
-          %i[config config],
-          %i[confdir confdir]
-        ]
-      end
-
-      def modulepath
-        Puppet[:modulepath].split(File::PATH_SEPARATOR)
-      end
-
-      # @return [String, nil] The path to the Puppet manifest if it is present and set, nil otherwise.
-      def manifest
-        Puppet[:manifest]
-      end
-    end
-
-    class Adapter40 < Base
-      #
-      # @api private
-      #
-      # Set the FacterImpl constant to the given Facter implementation or noop
-      # if the constant is already set. If a proc is given, it will only be
-      # called if FacterImpl is not defined.
-      #
-      # @param impl [Object, Proc] An object or a proc that implements the Facter API
-      def set_facter_impl(impl)
-        return if defined?(FacterImpl)
-
-        impl = impl.call if impl.is_a?(Proc)
-        Object.send(:const_set, :FacterImpl, impl)
-      end
-
-      def setup_puppet(example_group)
-        super
 
         modulepath = if (rspec_modulepath = RSpec.configuration.module_path)
                        rspec_modulepath.split(File::PATH_SEPARATOR)
@@ -141,20 +80,16 @@ def setup_puppet(example_group)
                        end
                      end
 
-        if (rspec_manifest = RSpec.configuration.manifest)
-          manifest = rspec_manifest
-        else
-          manifest_paths = Puppet[:environmentpath].split(File::PATH_SEPARATOR).map do |path|
-            File.join(path, 'fixtures', 'manifests')
-          end
-
-          manifest = manifest_paths.find do |path|
-            File.exist?(path)
-          end
+        manifest_paths = Puppet[:environmentpath].split(File::PATH_SEPARATOR).map do |path|
+          File.join(path, 'fixtures', 'manifests')
+        end
 
-          manifest ||= Puppet::Node::Environment::NO_MANIFEST
+        manifest = manifest_paths.find do |path|
+          File.exist?(path)
         end
 
+        manifest ||= Puppet::Node::Environment::NO_MANIFEST
+
         env = Puppet::Node::Environment.create(@environment_name, modulepath, manifest)
         loader = Puppet::Environments::Static.new(env)
 
@@ -168,13 +103,12 @@ def setup_puppet(example_group)
         )
       end
 
-      def settings_map
-        super.push(
-          %i[environmentpath environmentpath],
-          %i[hiera_config hiera_config],
-          %i[strict_variables strict_variables],
-          %i[manifest manifest]
-        )
+      def get_setting(example_group, rspec_setting)
+        if example_group.respond_to?(rspec_setting)
+          example_group.send(rspec_setting)
+        else
+          RSpec.configuration.send(rspec_setting)
+        end
       end
 
       def catalog(node, exported)
@@ -182,10 +116,36 @@ def catalog(node, exported)
         # Override $::environment to workaround PUP-5835, where Puppet otherwise
         # stores a symbol for the parameter
         if node.parameters['environment'] != node.parameters['environment'].to_s
-          node.parameters['environment'] =
-            current_environment.name.to_s
+          node.parameters['environment'] = current_environment.name.to_s
         end
-        super
+
+        catalog = if exported
+                    # Use the compiler directly to skip the filtering done by the indirector
+                    Puppet::Parser::Compiler.compile(node).filter { |r| !r.exported? }
+                  else
+                    Puppet::Resource::Catalog.indirection.find(node.name, use_node: node)
+                  end
+
+        Puppet::Pops::Evaluator::DeferredResolver.resolve_and_replace(node.facts, catalog)
+
+        catalog
+      end
+
+      def current_environment
+        Puppet::Node::Environment.new(@environment_name)
+      end
+
+      def settings_map
+        [
+          %i[modulepath module_path],
+          %i[basemodulepath basemodulepath],
+          %i[config config],
+          %i[confdir confdir],
+          %i[environmentpath environmentpath],
+          %i[hiera_config hiera_config],
+          %i[strict_variables strict_variables],
+          %i[vendormoduledir vendormoduledir]
+        ]
       end
 
       def current_environment
@@ -196,9 +156,6 @@ def modulepath
         current_environment.modulepath
       end
 
-      # Puppet 4.0 specially handles environments that don't have a manifest set, so we check for the no manifest value
-      # and return nil when it is set.
-      #
       # @return [String, nil] The path to the Puppet manifest if it is present and set, nil otherwise.
       def manifest
         m = current_environment.manifest
@@ -208,144 +165,25 @@ def manifest
           m
         end
       end
-    end
-
-    class Adapter4X < Adapter40
-      def setup_puppet(example_group)
-        super
-
-        set_facter_impl(Facter)
-      end
-
-      def settings_map
-        super.push(
-          %i[trusted_server_facts trusted_server_facts]
-        )
-      end
-    end
 
-    class Adapter6X < Adapter40
-      #
       # @api private
       #
-      # Check to see if Facter runtime implementations are supported in the
-      # current Puppet version
+      # Set the FacterImpl constant to the given Facter implementation or noop
+      # if the constant is already set. If a proc is given, it will only be
+      # called if FacterImpl is not defined.
       #
-      # @return [Boolean] true if runtime implementations are supported
-      def supports_facter_runtime?
-        unless defined?(@supports_facter_runtime)
-          begin
-            Puppet.runtime[:facter]
-            @supports_facter_runtime = true
-          rescue StandardError
-            @supports_facter_runtime = false
-          end
-        end
-
-        @supports_facter_runtime
-      end
-
-      def setup_puppet(example_group)
-        case RSpec.configuration.facter_implementation.to_sym
-        when :rspec
-          if supports_facter_runtime?
-            # Lazily instantiate FacterTestImpl here to optimize memory
-            # allocation, as the proc will only be called if FacterImpl is unset
-            set_facter_impl(proc { RSpec::Puppet::FacterTestImpl.new })
-            Puppet.runtime[:facter] = FacterImpl
-          else
-            warn "Facter runtime implementations are not supported in Puppet #{Puppet.version}, continuing with facter_implementation 'facter'"
-            RSpec.configuration.facter_implementation = :facter
-            set_facter_impl(Facter)
-          end
-        when :facter
-          set_facter_impl(Facter)
-        else
-          raise "Unsupported facter_implementation '#{RSpec.configuration.facter_implementation}'"
-        end
-
-        super
-      end
-
-      def settings_map
-        super.push(
-          %i[basemodulepath basemodulepath],
-          %i[vendormoduledir vendormoduledir]
-        )
-      end
-
-      def catalog(node, _exported)
-        super.tap do |c|
-          Puppet::Pops::Evaluator::DeferredResolver.resolve_and_replace(node.facts, c)
-        end
-      end
-    end
-
-    class Adapter30 < Base
-      def settings_map
-        super.push(
-          %i[manifestdir manifest_dir],
-          %i[manifest manifest],
-          %i[templatedir template_dir],
-          %i[hiera_config hiera_config]
-        )
-      end
-    end
-
-    class Adapter32 < Adapter30
-      def settings_map
-        super.push(
-          %i[parser parser]
-        )
-      end
-    end
-
-    class Adapter33 < Adapter32
-      def settings_map
-        super.push(
-          %i[ordering ordering],
-          %i[stringify_facts stringify_facts]
-        )
-      end
-    end
-
-    class Adapter34 < Adapter33
-      def settings_map
-        super.push(
-          %i[trusted_node_data trusted_node_data]
-        )
-      end
-    end
-
-    class Adapter35 < Adapter34
-      def settings_map
-        super.push(
-          %i[strict_variables strict_variables]
-        )
-      end
-    end
+      # @param impl [Object, Proc] An object or a proc that implements the Facter API
+      def set_facter_impl(impl)
+        return if defined?(FacterImpl)
 
-    class Adapter27 < Base
-      def settings_map
-        super.push(
-          %i[manifestdir manifest_dir],
-          %i[manifest manifest],
-          %i[templatedir template_dir]
-        )
+        impl = impl.call if impl.is_a?(Proc)
+        Object.send(:const_set, :FacterImpl, impl)
       end
     end
 
     def self.get
       [
-        ['6.0', Adapter6X],
-        ['4.1', Adapter4X],
-        ['4.0', Adapter40],
-        ['3.5', Adapter35],
-        ['3.4', Adapter34],
-        ['3.3', Adapter33],
-        ['3.2', Adapter32],
-        ['3.0', Adapter30],
-        ['2.7', Adapter27]
+        ['7.11', Base]
       ].each do |(version, klass)|
         return klass.new if Puppet::Util::Package.versioncmp(Puppet.version, version) >= 0
       end
diff --git a/lib/rspec-puppet/sensitive.rb b/lib/rspec-puppet/sensitive.rb
index dd942b088..c35962b37 100644
--- a/lib/rspec-puppet/sensitive.rb
+++ b/lib/rspec-puppet/sensitive.rb
@@ -1,53 +1,43 @@
 # frozen_string_literal: true
 
 module RSpec::Puppet
-  if defined?(::Puppet::Pops::Types::PSensitiveType::Sensitive)
-    # A wrapper representing Sensitive data type, eg. in class params.
-    class Sensitive < ::Puppet::Pops::Types::PSensitiveType::Sensitive
-      # Create a new Sensitive object
-      # @param [Object] value to wrap
-      def initialize(value)
-        @value = value
-      end
+  # A wrapper representing Sensitive data type, eg. in class params.
+  class Sensitive < ::Puppet::Pops::Types::PSensitiveType::Sensitive
+    # Create a new Sensitive object
+    # @param [Object] value to wrap
+    def initialize(value)
+      @value = value
+    end
 
-      # @return the wrapped value
-      def unwrap
-        @value
-      end
+    # @return the wrapped value
+    def unwrap
+      @value
+    end
 
-      # @return true
-      def sensitive?
-        true
-      end
+    # @return true
+    def sensitive?
+      true
+    end
 
-      # @return inspect of the wrapped value, inside Sensitive()
-      def inspect
-        "Sensitive(#{@value.inspect})"
-      end
+    # @return inspect of the wrapped value, inside Sensitive()
+    def inspect
+      "Sensitive(#{@value.inspect})"
+    end
 
-      # Check for equality with another value.
-      # If compared to Puppet Sensitive type, it compares the wrapped values.
+    # Check for equality with another value.
+    # If compared to Puppet Sensitive type, it compares the wrapped values.
 
-      # @param other [#unwrap, Object] value to compare to
-      def ==(other)
-        if other.respond_to? :unwrap
-          if unwrap.is_a?(Regexp)
-            unwrap =~ other.unwrap
-          else
-            unwrap == other.unwrap
-          end
+    # @param other [#unwrap, Object] value to compare to
+    def ==(other)
+      if other.respond_to? :unwrap
+        if unwrap.is_a?(Regexp)
+          unwrap =~ other.unwrap
         else
-          super
+          unwrap == other.unwrap
         end
+      else
+        super
       end
     end
-  else
-    # :nocov:
-    class Sensitive
-      def initialize(_value)
-        raise 'The use of the Sensitive data type is not supported by this Puppet version'
-      end
-    end
-    # :nocov:
   end
 end
diff --git a/lib/rspec-puppet/setup.rb b/lib/rspec-puppet/setup.rb
index f70e9f5bf..f11985830 100644
--- a/lib/rspec-puppet/setup.rb
+++ b/lib/rspec-puppet/setup.rb
@@ -91,8 +91,6 @@ def self.get_module_name
     end
 
     def self.get_module_name_from_file(file)
-      # FIXME: see discussion at
-      # https://github.com/rodjek/rspec-puppet/issues/290
       require 'puppet/pops'
       p = Puppet::Pops::Parser::Lexer2.new
       module_name = nil
diff --git a/lib/rspec-puppet/spec_helper.rb b/lib/rspec-puppet/spec_helper.rb
index 541391ecc..6dfff00b9 100644
--- a/lib/rspec-puppet/spec_helper.rb
+++ b/lib/rspec-puppet/spec_helper.rb
@@ -2,8 +2,6 @@
 
 require 'rspec-puppet'
 
-fixture_path = File.join(File.dirname(File.expand_path(__FILE__)), 'fixtures')
-
 RSpec.configure do |c|
   c.module_path     = File.join(fixture_path, 'modules')
   c.manifest_dir    = File.join(fixture_path, 'manifests')
diff --git a/lib/rspec-puppet/support.rb b/lib/rspec-puppet/support.rb
index 5f4d8d98f..692bfe92a 100644
--- a/lib/rspec-puppet/support.rb
+++ b/lib/rspec-puppet/support.rb
@@ -84,7 +84,6 @@ def load_catalogue(type, exported = false, manifest_opts = {})
         hiera_data_value = respond_to?(:hiera_data) ? hiera_data : nil
 
         rspec_config_values = %i[
-          trusted_server_facts
           disable_module_hiera
           use_fixture_spec_hiera
           fixture_hiera_configs
@@ -122,30 +121,6 @@ def load_catalogue(type, exported = false, manifest_opts = {})
       end
     end
 
-    def import_str
-      import_str = ''
-      adapter.modulepath.each do |d|
-        if File.exist?(File.join(d, 'manifests', 'init.pp'))
-          path_to_manifest = File.join([
-            d,
-            'manifests',
-            class_name.split('::')[1..]
-          ].flatten)
-          import_str = [
-            "import '#{d}/manifests/init.pp'",
-            "import '#{path_to_manifest}.pp'",
-            ''
-          ].join("\n")
-          break
-        elsif File.exist?(d)
-          import_str = "import '#{adapter.manifest}'\n"
-          break
-        end
-      end
-
-      import_str
-    end
-
     def site_pp_str
       return '' unless (path = adapter.manifest)
 
@@ -328,7 +303,7 @@ def server_facts_hash
       # And then add the server name and IP
       { 'servername' => 'fqdn',
         'serverip' => 'ipaddress' }.each do |var, fact|
-        if (value = FacterImpl.value(fact))
+        if (value = Puppet.runtime[:facter].value(fact))
           server_facts[var] = value
         else
           warn "Could not retrieve fact #{fact}"
@@ -336,8 +311,8 @@ def server_facts_hash
       end
 
       if server_facts['servername'].nil?
-        host = FacterImpl.value(:hostname)
-        server_facts['servername'] = if (domain = FacterImpl.value(:domain))
+        host = Puppet.runtime[:facter].value(:hostname)
+        server_facts['servername'] = if (domain = Puppet.runtime[:facter].value(:domain))
                                        [host, domain].join('.')
                                      else
                                        host
@@ -452,15 +427,15 @@ def build_catalog_without_cache_v2(
         'Context for spec trusted hash'
       )
 
-      node_obj.add_server_facts(server_facts_hash) if RSpec.configuration.trusted_server_facts
+      node_obj.add_server_facts(server_facts_hash)
 
       adapter.catalog(node_obj, exported)
     end
 
     def stub_facts!(facts)
       Puppet.settings[:autosign] = false if Puppet.settings.include? :autosign
-      FacterImpl.clear
-      facts.each { |k, v| FacterImpl.add(k, weight: 999) { setcode { v } } }
+      Puppet.runtime[:facter].clear
+      facts.each { |k, v| Puppet.runtime[:facter].add(k, weight: 999) { setcode { v } } }
     end
 
     def build_catalog(*args)
diff --git a/spec/classes/array_spec.rb b/spec/classes/array_spec.rb
index 237eef398..a8ec22b75 100644
--- a/spec/classes/array_spec.rb
+++ b/spec/classes/array_spec.rb
@@ -38,18 +38,16 @@
       ] }
     end
 
-    describe 'on Puppet 2.7 and later' do
-      it {
-        expect(subject).to contain_structured_data__def('thing').with(
-          { 'data' => [
-            'first',
-            'second',
-            %w[third fourth],
-            5,
-            6
-          ] }
-        )
-      }
-    end
+    it {
+      expect(subject).to contain_structured_data__def('thing').with(
+        { 'data' => [
+          'first',
+          'second',
+          %w[third fourth],
+          5,
+          6
+        ] }
+      )
+    }
   end
 end
diff --git a/spec/classes/hash_spec.rb b/spec/classes/hash_spec.rb
index ccbf89e52..464e09ab5 100644
--- a/spec/classes/hash_spec.rb
+++ b/spec/classes/hash_spec.rb
@@ -20,13 +20,11 @@
       { 'data' => { 1 => 'uno', 2 => 'dos' } }
     end
 
-    context 'puppet 4 or greater' do
-      it {
-        expect(subject).to contain_structured_data__def('thing').with(
-          { 'data' => { 1 => 'uno', 2 => 'dos' } }
-        )
-      }
-    end
+    it {
+      expect(subject).to contain_structured_data__def('thing').with(
+        { 'data' => { 1 => 'uno', 2 => 'dos' } }
+      )
+    }
   end
 
   describe 'with integers as values' do
diff --git a/spec/classes/hiera_integration_spec.rb b/spec/classes/hiera_integration_spec.rb
index 2c6b8a7a6..0b5eaf341 100644
--- a/spec/classes/hiera_integration_spec.rb
+++ b/spec/classes/hiera_integration_spec.rb
@@ -2,7 +2,6 @@
 
 require 'spec_helper'
 
-# hiera is not supported before 2.7
 describe 'test::hiera' do
   context 'with :hiera_config set' do
     let(:hiera_config) { 'spec/fixtures/hiera.yaml' }
diff --git a/spec/classes/server_facts_spec.rb b/spec/classes/server_facts_spec.rb
index ccf92496c..a41f3d697 100644
--- a/spec/classes/server_facts_spec.rb
+++ b/spec/classes/server_facts_spec.rb
@@ -3,17 +3,12 @@
 require 'spec_helper'
 
 describe 'server_facts' do
-  context 'with server_facts' do
-    before do
-      RSpec.configuration.trusted_server_facts = true
-    end
-
-    let(:facts) do
-      {
-        ipaddress: '192.168.1.10'
-      }
-    end
-    let(:node) { 'test123.test.com' }
+  let(:facts) do
+    {
+      ipaddress: '192.168.1.10'
+    }
+  end
+  let(:node) { 'test123.test.com' }
 
     it { is_expected.to contain_class('server_facts') }
     it { is_expected.to compile.with_all_deps }
diff --git a/spec/functions/nil_function_spec.rb b/spec/functions/nil_function_spec.rb
index dfd07a605..3f796b4ec 100644
--- a/spec/functions/nil_function_spec.rb
+++ b/spec/functions/nil_function_spec.rb
@@ -3,10 +3,6 @@
 require 'spec_helper'
 
 describe 'nil_function' do
-  let(:version) { 'new version' }
-
   it { is_expected.to run.with_params(false).and_return(nil) }
-  it { is_expected.to run.with_params(true).and_raise_error(Puppet::ParseError, /Forced Failure/) }
-
-  it { is_expected.to run.with_params(true).and_raise_error(Puppet::ParseError, /Forced Failure - #{version}/) }
+  it { is_expected.to run.with_params(true).and_raise_error(Puppet::ParseError, /Forced Failure - new version/) }
 end
diff --git a/spec/functions/split_spec.rb b/spec/functions/split_spec.rb
index 170d97aa9..1e495610c 100644
--- a/spec/functions/split_spec.rb
+++ b/spec/functions/split_spec.rb
@@ -6,7 +6,9 @@
   it { is_expected.to run.with_params('aoeu', 'o').and_return(%w[a eu]) }
   it { is_expected.not_to run.with_params('foo').and_raise_error(Puppet::DevError) }
 
-  it { is_expected.to run.with_params('foo').and_raise_error(ArgumentError) }
+  expected_error = ArgumentError
+
+  it { is_expected.to run.with_params('foo').and_raise_error(expected_error) }
 
   it { is_expected.to run.with_params('foo').and_raise_error(ArgumentError, /expects \d+ arguments/) }
 
diff --git a/spec/spec_helper.rb b/spec/spec_helper.rb
index 1d6218fbd..3cc73c581 100644
--- a/spec/spec_helper.rb
+++ b/spec/spec_helper.rb
@@ -27,10 +27,8 @@ def sensitive?
 
 RSpec.configure do |c|
   c.module_path     = File.join(File.dirname(File.expand_path(__FILE__)), 'fixtures', 'modules')
-  c.manifest_dir    = File.join(File.dirname(File.expand_path(__FILE__)), 'fixtures', 'manifests')
-  c.manifest        = File.join(File.dirname(File.expand_path(__FILE__)), 'fixtures', 'manifests', 'site.pp')
   c.environmentpath = File.join(Dir.pwd, 'spec')
-  c.parser          = ENV['FUTURE_PARSER'] == 'yes' ? 'future' : 'current'
+  c.manifest        = File.join(File.dirname(File.expand_path(__FILE__)), 'fixtures', 'manifests', 'site.pp')
 
   c.after(:suite) do
     RSpec::Puppet::Coverage.report!(0)
diff --git a/spec/support_spec.rb b/spec/support_spec.rb
index e7ef2d6c2..94576da75 100644
--- a/spec/support_spec.rb
+++ b/spec/support_spec.rb
@@ -36,18 +36,10 @@
   end
 
   describe '#sensitive' do
-    context 'when using a version of Puppet that supports the Sensitive type', if: sensitive? do
-      it 'returns a new Sensitive with the given contents' do
-        sens = subject.sensitive('test content')
-        expect(sens).to be_sensitive
-        expect(sens.unwrap).to eq 'test content'
-      end
-    end
-
-    context 'when using a version of Puppet that does not support Sensitive', unless: sensitive? do
-      it 'raises an error' do
-        expect { subject.sensitive('test content') }.to raise_error
-      end
+    it 'returns a new Sensitive with the given contents' do
+      sens = subject.sensitive('test content')
+      expect(sens).to be_sensitive
+      expect(sens.unwrap).to eq 'test content'
     end
   end
 
@@ -143,10 +135,6 @@ def class_name
         def site_pp_str
           ''
         end
-
-        def import_str
-          ''
-        end
       end
     end
 
diff --git a/spec/unit/adapters_spec.rb b/spec/unit/adapters_spec.rb
index 5a8ba2b1b..189ea62dc 100644
--- a/spec/unit/adapters_spec.rb
+++ b/spec/unit/adapters_spec.rb
@@ -24,7 +24,7 @@ def context_double(options = {})
 
     null_path = windows? ? 'c:/nul/' : '/dev/null'
 
-    %i[vardir confdir].each do |setting|
+    %i[vardir codedir rundir logdir hiera_config confdir].each do |setting|
       it "sets #{setting} to #{null_path}" do
         expect(Puppet[setting]).to eq(File.expand_path(null_path))
       end
@@ -77,124 +77,6 @@ def context_double(options = {})
       end
     end
   end
-end
-
-describe RSpec::Puppet::Adapters::Adapter35, if: (3.5...4.0).cover?(Puppet.version.to_f) do
-  let(:test_context) { double environment: 'rp_env' }
-
-  context 'when running on puppet 3.5 or later', if: (3.5...4.0).cover?(Puppet.version.to_f) do
-    it 'sets Puppet[:strict_variables] to false by default' do
-      subject.setup_puppet(test_context)
-      expect(Puppet[:strict_variables]).to be(false)
-    end
-
-    it 'reads the :strict_variables setting' do
-      allow(test_context).to receive(:strict_variables).and_return true
-      subject.setup_puppet(test_context)
-      expect(Puppet[:strict_variables]).to be(true)
-    end
-  end
-end
-
-describe RSpec::Puppet::Adapters::Adapter34, if: (3.4...4.0).cover?(Puppet.version.to_f) do
-  let(:test_context) { double environment: 'rp_env' }
-
-  context 'when running on puppet 3.4 or later', if: (3.4...4.0).cover?(Puppet.version.to_f) do
-    it 'sets Puppet[:trusted_node_data] to false by default' do
-      subject.setup_puppet(test_context)
-      expect(Puppet[:trusted_node_data]).to be(false)
-    end
-
-    it 'reads the :trusted_node_data setting' do
-      allow(test_context).to receive(:trusted_node_data).and_return(true)
-      subject.setup_puppet(test_context)
-      expect(Puppet[:trusted_node_data]).to be(true)
-    end
-  end
-end
-
-describe RSpec::Puppet::Adapters::Adapter33, if: (3.3...4.0).cover?(Puppet.version.to_f) do
-  let(:test_context) { double environment: 'rp_env' }
-
-  context 'when running on puppet ~> 3.3', if: (3.3...4.0).cover?(Puppet.version.to_f) do
-    it 'sets Puppet[:stringify_facts] to true by default' do
-      subject.setup_puppet(test_context)
-      expect(Puppet[:stringify_facts]).to be(true)
-    end
-
-    it 'reads the :stringify_facts setting' do
-      allow(test_context).to receive(:stringify_facts).and_return false
-      subject.setup_puppet(test_context)
-      expect(Puppet[:stringify_facts]).to be(false)
-    end
-
-    it 'sets Puppet[:ordering] to title-hash by default' do
-      subject.setup_puppet(test_context)
-      expect(Puppet[:ordering]).to eq('title-hash')
-    end
-
-    it 'reads the :ordering setting' do
-      allow(test_context).to receive(:ordering).and_return('manifest')
-      subject.setup_puppet(test_context)
-      expect(Puppet[:ordering]).to eq('manifest')
-    end
-  end
-end
-
-describe RSpec::Puppet::Adapters::Adapter32, if: (3.2...4.0).cover?(Puppet.version.to_f) do
-  let(:test_context) { double environment: 'rp_env' }
-
-  context 'when running on puppet ~> 3.2', if: (3.2...4.0).cover?(Puppet.version.to_f) do
-    it 'sets Puppet[:parser] to "current" by default' do
-      subject.setup_puppet(test_context)
-      expect(Puppet[:parser]).to eq('current')
-    end
-
-    it 'reads the :parser setting' do
-      allow(test_context).to receive(:parser).and_return('future')
-      subject.setup_puppet(test_context)
-      expect(Puppet[:parser]).to eq('future')
-    end
-  end
-
-  describe 'default settings' do
-    before do
-      subject.setup_puppet(context_double)
-    end
-
-    null_path = windows? ? 'c:/nul/' : '/dev/null'
-
-    %i[vardir rundir logdir hiera_config confdir].each do |setting|
-      it "sets #{setting} to #{null_path}" do
-        expect(Puppet[setting]).to eq(File.expand_path(null_path))
-      end
-    end
-  end
-end
-
-describe RSpec::Puppet::Adapters::Adapter6X, if: (6.0...6.25).cover?(Puppet.version.to_f) do
-  let(:test_context) { double environment: 'rp_env' }
-
-  describe '#setup_puppet' do
-    describe 'when managing the facter_implementation' do
-      after do
-        Object.send(:remove_const, :FacterImpl) if defined? FacterImpl
-      end
-
-      it 'warns and falls back if hash implementation is set and facter runtime is not supported' do
-        context = context_double
-        allow(RSpec.configuration).to receive(:facter_implementation).and_return('rspec')
-        expect(subject).to receive(:warn)
-          .with("Facter runtime implementations are not supported in Puppet #{Puppet.version}, continuing with facter_implementation 'facter'")
-        subject.setup_puppet(context)
-        expect(FacterImpl).to be(Facter)
-      end
-    end
-  end
-end
-
-describe RSpec::Puppet::Adapters::Adapter6X, if: Puppet::Util::Package.versioncmp(Puppet.version, '6.25.0') >= 0 do
-  let(:test_context) { double environment: 'rp_env' }
 
   describe '#setup_puppet' do
     describe 'when managing the facter_implementation' do
@@ -237,53 +119,3 @@ def context_double(options = {})
     end
   end
 end
-
-describe RSpec::Puppet::Adapters::Adapter4X, if: (4.0...6.0).cover?(Puppet.version.to_f) do
-  let(:test_context) { double environment: 'rp_env' }
-
-  it 'sets Puppet[:strict_variables] to false by default' do
-    subject.setup_puppet(test_context)
-    expect(Puppet[:strict_variables]).to be(false)
-  end
-
-  it 'reads the :strict_variables setting' do
-    allow(test_context).to receive(:strict_variables).and_return(true)
-    subject.setup_puppet(test_context)
-    expect(Puppet[:strict_variables]).to be(true)
-  end
-
-  it 'overrides the environmentpath set by Puppet::Test::TestHelper' do
-    allow(test_context).to receive(:environmentpath).and_return('/path/to/my/environments')
-    subject.setup_puppet(test_context)
-    expect(Puppet[:environmentpath]).to match(%r{(C:)?/path/to/my/environments})
-  end
-
-  describe '#manifest' do
-    it 'returns the configured environment manifest when set' do
-      allow(RSpec.configuration).to receive(:manifest).and_return('/path/to/manifest')
-      subject.setup_puppet(double(environment: 'rp_puppet'))
-      expect(subject.manifest).to match(%r{(C:)?/path/to/manifest})
-    end
-
-    it 'returns nil when the configured environment manifest is not set' do
-      allow(RSpec.configuration).to receive(:manifest)
-      allow(RSpec.configuration).to receive(:environmentpath).and_return('/some/missing/path:/another/missing/path')
-      subject.setup_puppet(double(environment: 'rp_puppet'))
-      expect(subject.manifest).to be_nil
-    end
-  end
-
-  describe 'default settings' do
-    before do
-      subject.setup_puppet(context_double)
-    end
-
-    null_path = windows? ? 'c:/nul/' : '/dev/null'
-
-    %i[vardir codedir rundir logdir hiera_config confdir].each do |setting|
-      it "sets #{setting} to #{null_path}" do
-        expect(Puppet[setting]).to eq(File.expand_path(null_path))
-      end
-    end
-  end
-end
diff --git a/spec/unit/matchers/compile_spec.rb b/spec/unit/matchers/compile_spec.rb
index 595df1eb5..dcf757ffc 100644
--- a/spec/unit/matchers/compile_spec.rb
+++ b/spec/unit/matchers/compile_spec.rb
@@ -174,7 +174,6 @@
       let(:expected_error) do
         'Evaluation Error: Error while evaluating a Function Call, failure (line: 52, column: 1) on node rspec::puppet::manifestmatchers::compile'
       end
-      let(:error_detail) { 'failure (line: 52, column: 1)' }
 
       before { subject.and_raise_error(expected_error) }
 
diff --git a/spec/unit/monkey_patches_spec.rb b/spec/unit/monkey_patches_spec.rb
index e566a5e46..4fdffd31c 100644
--- a/spec/unit/monkey_patches_spec.rb
+++ b/spec/unit/monkey_patches_spec.rb
@@ -133,19 +133,11 @@
 
 describe 'Puppet::Module#match_manifests' do
   subject do
-    if Puppet::Module.instance_method(:initialize).arity == -2
-      Puppet::Module.new(
-        'escape',
-        path: File.join(RSpec.configuration.module_path, 'escape'),
-        environment: 'production'
-      )
-    else
-      Puppet::Module.new(
-        'escape',
-        File.join(RSpec.configuration.module_path, 'escape'),
-        'production'
-      )
-    end
+    Puppet::Module.new(
+      'escape',
+      File.join(RSpec.configuration.module_path, 'escape'),
+      'production'
+    )
   end
 
   it 'returns init.pp for top level class' do
diff --git a/spec/unit/sensitive_spec.rb b/spec/unit/sensitive_spec.rb
index 117e75b44..ae77aa608 100644
--- a/spec/unit/sensitive_spec.rb
+++ b/spec/unit/sensitive_spec.rb
@@ -3,7 +3,7 @@
 require 'spec_helper'
 require 'rspec-puppet/sensitive'
 
-describe RSpec::Puppet::Sensitive, if: sensitive? do
+describe RSpec::Puppet::Sensitive do
   subject(:sensitive) { described_class.new contents }
 
   let(:contents) { double :contents }