diff --git a/exercises/practice/all-your-base/pubspec.yaml b/exercises/practice/all-your-base/pubspec.yaml
index 85efc34a..5a79bb1b 100644
--- a/exercises/practice/all-your-base/pubspec.yaml
+++ b/exercises/practice/all-your-base/pubspec.yaml
@@ -3,4 +3,3 @@ environment:
   sdk: '>=3.2.0 <4.0.0'
 dev_dependencies:
   test: '<2.0.0'
-
diff --git a/exercises/practice/bottle-song/pubspec.yaml b/exercises/practice/bottle-song/pubspec.yaml
index b77f62de..12afed13 100644
--- a/exercises/practice/bottle-song/pubspec.yaml
+++ b/exercises/practice/bottle-song/pubspec.yaml
@@ -1,5 +1,5 @@
 name: 'bottle_song'
 environment:
-  sdk: '>=2.18.0 <3.0.0'
+  sdk: '>=3.2.0 <4.0.0'
 dev_dependencies:
   test: '<2.0.0'
diff --git a/exercises/practice/camicia/pubspec.yaml b/exercises/practice/camicia/pubspec.yaml
index f315b7c0..0d94e4f4 100644
--- a/exercises/practice/camicia/pubspec.yaml
+++ b/exercises/practice/camicia/pubspec.yaml
@@ -1,5 +1,5 @@
 name: 'camicia'
 environment:
-  sdk: '>=2.18.0 <3.0.0'
+  sdk: '>=3.2.0 <4.0.0'
 dev_dependencies:
   test: '<2.0.0'
diff --git a/exercises/practice/circular-buffer/pubspec.yaml b/exercises/practice/circular-buffer/pubspec.yaml
index 59736221..66744b22 100644
--- a/exercises/practice/circular-buffer/pubspec.yaml
+++ b/exercises/practice/circular-buffer/pubspec.yaml
@@ -1,5 +1,5 @@
 name: 'circular_buffer'
 environment:
-  sdk: '>=2.18.0 <3.0.0'
+  sdk: '>=3.2.0 <4.0.0'
 dev_dependencies:
   test: '<2.0.0'
diff --git a/exercises/practice/house/pubspec.yaml b/exercises/practice/house/pubspec.yaml
index 953c7ac8..f5fbdfbf 100644
--- a/exercises/practice/house/pubspec.yaml
+++ b/exercises/practice/house/pubspec.yaml
@@ -1,5 +1,5 @@
 name: 'house'
 environment:
-  sdk: '>=2.18.0 <3.0.0'
+  sdk: '>=3.2.0 <4.0.0'
 dev_dependencies:
   test: '<2.0.0'
diff --git a/exercises/practice/largest-series-product/pubspec.yaml b/exercises/practice/largest-series-product/pubspec.yaml
index d6f16908..aa75c2d6 100644
--- a/exercises/practice/largest-series-product/pubspec.yaml
+++ b/exercises/practice/largest-series-product/pubspec.yaml
@@ -1,6 +1,5 @@
 name: 'largest_series_product'
 environment:
-  sdk: '>=2.18.0 <3.0.0'
+  sdk: '>=3.2.0 <4.0.0'
 dev_dependencies:
   test: '<2.0.0'
-
diff --git a/exercises/practice/list-ops/pubspec.yaml b/exercises/practice/list-ops/pubspec.yaml
index baf73673..d3b86358 100644
--- a/exercises/practice/list-ops/pubspec.yaml
+++ b/exercises/practice/list-ops/pubspec.yaml
@@ -1,5 +1,5 @@
 name: 'list_ops'
 environment:
-  sdk: '>=2.18.0 <3.0.0'
+  sdk: '>=3.2.0 <4.0.0'
 dev_dependencies:
   test: '<2.0.0'
diff --git a/exercises/practice/perfect-numbers/analysis_options.yaml b/exercises/practice/perfect-numbers/analysis_options.yaml
new file mode 100644
index 00000000..c06363d6
--- /dev/null
+++ b/exercises/practice/perfect-numbers/analysis_options.yaml
@@ -0,0 +1,18 @@
+analyzer:
+  strong-mode:
+    implicit-casts: false
+    implicit-dynamic: false
+  errors:
+    unused_element:        error
+    unused_import:         error
+    unused_local_variable: error
+    dead_code:             error
+
+linter:
+  rules:
+    # Error Rules
+    - avoid_relative_lib_imports
+    - avoid_types_as_parameter_names
+    - literal_only_boolean_expressions
+    - no_adjacent_strings_in_list
+    - valid_regexps
diff --git a/exercises/practice/protein-translation/pubspec.yaml b/exercises/practice/protein-translation/pubspec.yaml
index e7a9ce6a..d0fb0d17 100644
--- a/exercises/practice/protein-translation/pubspec.yaml
+++ b/exercises/practice/protein-translation/pubspec.yaml
@@ -1,5 +1,5 @@
 name: 'protein_translation'
 environment:
-  sdk: '>=2.18.0 <3.0.0'
+  sdk: '>=3.2.0 <4.0.0'
 dev_dependencies:
   test: '<2.0.0'
diff --git a/exercises/practice/sieve/pubspec.yaml b/exercises/practice/sieve/pubspec.yaml
index 8d8b7238..5be1a8ec 100644
--- a/exercises/practice/sieve/pubspec.yaml
+++ b/exercises/practice/sieve/pubspec.yaml
@@ -1,5 +1,5 @@
 name: 'sieve'
 environment:
-  sdk: '>=2.18.0 <3.0.0'
+  sdk: '>=3.2.0 <4.0.0'
 dev_dependencies:
   test: '<2.0.0'
diff --git a/exercises/practice/strain/analysis_options.yaml b/exercises/practice/strain/analysis_options.yaml
new file mode 100644
index 00000000..c06363d6
--- /dev/null
+++ b/exercises/practice/strain/analysis_options.yaml
@@ -0,0 +1,18 @@
+analyzer:
+  strong-mode:
+    implicit-casts: false
+    implicit-dynamic: false
+  errors:
+    unused_element:        error
+    unused_import:         error
+    unused_local_variable: error
+    dead_code:             error
+
+linter:
+  rules:
+    # Error Rules
+    - avoid_relative_lib_imports
+    - avoid_types_as_parameter_names
+    - literal_only_boolean_expressions
+    - no_adjacent_strings_in_list
+    - valid_regexps