diff --git a/common/changes/@microsoft/gulp-core-build-mocha/user-halfnibble-update-sass_2021-12-09-21-01.json b/common/changes/@microsoft/gulp-core-build-mocha/user-halfnibble-update-sass_2021-12-09-21-01.json
new file mode 100644
index 0000000..c5b5a0e
--- /dev/null
+++ b/common/changes/@microsoft/gulp-core-build-mocha/user-halfnibble-update-sass_2021-12-09-21-01.json
@@ -0,0 +1,11 @@
+{
+  "changes": [
+    {
+      "packageName": "@microsoft/gulp-core-build-mocha",
+      "comment": "Upgrade rushstack dependencies.",
+      "type": "patch"
+    }
+  ],
+  "packageName": "@microsoft/gulp-core-build-mocha",
+  "email": "halfnibble@users.noreply.github.com"
+}
\ No newline at end of file
diff --git a/common/changes/@microsoft/gulp-core-build-sass/user-halfnibble-update-sass_2021-12-09-19-59.json b/common/changes/@microsoft/gulp-core-build-sass/user-halfnibble-update-sass_2021-12-09-19-59.json
new file mode 100644
index 0000000..ebba4ee
--- /dev/null
+++ b/common/changes/@microsoft/gulp-core-build-sass/user-halfnibble-update-sass_2021-12-09-19-59.json
@@ -0,0 +1,11 @@
+{
+  "changes": [
+    {
+      "packageName": "@microsoft/gulp-core-build-sass",
+      "comment": "Upgrade Sass to use DartSass.",
+      "type": "minor"
+    }
+  ],
+  "packageName": "@microsoft/gulp-core-build-sass",
+  "email": "halfnibble@users.noreply.github.com"
+}
\ No newline at end of file
diff --git a/common/changes/@microsoft/gulp-core-build-serve/user-halfnibble-update-sass_2021-12-09-21-01.json b/common/changes/@microsoft/gulp-core-build-serve/user-halfnibble-update-sass_2021-12-09-21-01.json
new file mode 100644
index 0000000..2d7c8c6
--- /dev/null
+++ b/common/changes/@microsoft/gulp-core-build-serve/user-halfnibble-update-sass_2021-12-09-21-01.json
@@ -0,0 +1,11 @@
+{
+  "changes": [
+    {
+      "packageName": "@microsoft/gulp-core-build-serve",
+      "comment": "Upgrade rushstack dependencies.",
+      "type": "patch"
+    }
+  ],
+  "packageName": "@microsoft/gulp-core-build-serve",
+  "email": "halfnibble@users.noreply.github.com"
+}
\ No newline at end of file
diff --git a/common/changes/@microsoft/gulp-core-build-typescript/user-halfnibble-update-sass_2021-12-09-21-01.json b/common/changes/@microsoft/gulp-core-build-typescript/user-halfnibble-update-sass_2021-12-09-21-01.json
new file mode 100644
index 0000000..8224098
--- /dev/null
+++ b/common/changes/@microsoft/gulp-core-build-typescript/user-halfnibble-update-sass_2021-12-09-21-01.json
@@ -0,0 +1,11 @@
+{
+  "changes": [
+    {
+      "packageName": "@microsoft/gulp-core-build-typescript",
+      "comment": "Upgrade rushstack dependencies.",
+      "type": "patch"
+    }
+  ],
+  "packageName": "@microsoft/gulp-core-build-typescript",
+  "email": "halfnibble@users.noreply.github.com"
+}
\ No newline at end of file
diff --git a/common/changes/@microsoft/gulp-core-build-webpack/user-halfnibble-update-sass_2021-12-09-21-01.json b/common/changes/@microsoft/gulp-core-build-webpack/user-halfnibble-update-sass_2021-12-09-21-01.json
new file mode 100644
index 0000000..bd22306
--- /dev/null
+++ b/common/changes/@microsoft/gulp-core-build-webpack/user-halfnibble-update-sass_2021-12-09-21-01.json
@@ -0,0 +1,11 @@
+{
+  "changes": [
+    {
+      "packageName": "@microsoft/gulp-core-build-webpack",
+      "comment": "Upgrade rushstack dependencies.",
+      "type": "patch"
+    }
+  ],
+  "packageName": "@microsoft/gulp-core-build-webpack",
+  "email": "halfnibble@users.noreply.github.com"
+}
\ No newline at end of file
diff --git a/common/changes/@microsoft/gulp-core-build/user-halfnibble-update-sass_2021-12-09-21-01.json b/common/changes/@microsoft/gulp-core-build/user-halfnibble-update-sass_2021-12-09-21-01.json
new file mode 100644
index 0000000..a05513c
--- /dev/null
+++ b/common/changes/@microsoft/gulp-core-build/user-halfnibble-update-sass_2021-12-09-21-01.json
@@ -0,0 +1,11 @@
+{
+  "changes": [
+    {
+      "packageName": "@microsoft/gulp-core-build",
+      "comment": "Upgrade rushstack dependencies.",
+      "type": "patch"
+    }
+  ],
+  "packageName": "@microsoft/gulp-core-build",
+  "email": "halfnibble@users.noreply.github.com"
+}
\ No newline at end of file
diff --git a/common/changes/@microsoft/node-library-build/user-halfnibble-update-sass_2021-12-09-21-01.json b/common/changes/@microsoft/node-library-build/user-halfnibble-update-sass_2021-12-09-21-01.json
new file mode 100644
index 0000000..0d766ee
--- /dev/null
+++ b/common/changes/@microsoft/node-library-build/user-halfnibble-update-sass_2021-12-09-21-01.json
@@ -0,0 +1,11 @@
+{
+  "changes": [
+    {
+      "packageName": "@microsoft/node-library-build",
+      "comment": "Upgrade rushstack dependencies.",
+      "type": "patch"
+    }
+  ],
+  "packageName": "@microsoft/node-library-build",
+  "email": "halfnibble@users.noreply.github.com"
+}
\ No newline at end of file
diff --git a/common/changes/@microsoft/rush-stack-compiler-2.4/user-halfnibble-update-sass_2021-12-09-19-59.json b/common/changes/@microsoft/rush-stack-compiler-2.4/user-halfnibble-update-sass_2021-12-09-19-59.json
new file mode 100644
index 0000000..b8e7715
--- /dev/null
+++ b/common/changes/@microsoft/rush-stack-compiler-2.4/user-halfnibble-update-sass_2021-12-09-19-59.json
@@ -0,0 +1,11 @@
+{
+  "changes": [
+    {
+      "packageName": "@microsoft/rush-stack-compiler-2.4",
+      "comment": "Upgrade rushstack dependencies.",
+      "type": "patch"
+    }
+  ],
+  "packageName": "@microsoft/rush-stack-compiler-2.4",
+  "email": "halfnibble@users.noreply.github.com"
+}
\ No newline at end of file
diff --git a/common/changes/@microsoft/rush-stack-compiler-2.7/user-halfnibble-update-sass_2021-12-09-19-59.json b/common/changes/@microsoft/rush-stack-compiler-2.7/user-halfnibble-update-sass_2021-12-09-19-59.json
new file mode 100644
index 0000000..4b26407
--- /dev/null
+++ b/common/changes/@microsoft/rush-stack-compiler-2.7/user-halfnibble-update-sass_2021-12-09-19-59.json
@@ -0,0 +1,11 @@
+{
+  "changes": [
+    {
+      "packageName": "@microsoft/rush-stack-compiler-2.7",
+      "comment": "Upgrade rushstack dependencies.",
+      "type": "patch"
+    }
+  ],
+  "packageName": "@microsoft/rush-stack-compiler-2.7",
+  "email": "halfnibble@users.noreply.github.com"
+}
\ No newline at end of file
diff --git a/common/changes/@microsoft/rush-stack-compiler-2.8/user-halfnibble-update-sass_2021-12-09-19-59.json b/common/changes/@microsoft/rush-stack-compiler-2.8/user-halfnibble-update-sass_2021-12-09-19-59.json
new file mode 100644
index 0000000..61cf010
--- /dev/null
+++ b/common/changes/@microsoft/rush-stack-compiler-2.8/user-halfnibble-update-sass_2021-12-09-19-59.json
@@ -0,0 +1,11 @@
+{
+  "changes": [
+    {
+      "packageName": "@microsoft/rush-stack-compiler-2.8",
+      "comment": "Upgrade rushstack dependencies.",
+      "type": "patch"
+    }
+  ],
+  "packageName": "@microsoft/rush-stack-compiler-2.8",
+  "email": "halfnibble@users.noreply.github.com"
+}
\ No newline at end of file
diff --git a/common/changes/@microsoft/rush-stack-compiler-2.9/user-halfnibble-update-sass_2021-12-09-19-59.json b/common/changes/@microsoft/rush-stack-compiler-2.9/user-halfnibble-update-sass_2021-12-09-19-59.json
new file mode 100644
index 0000000..65a8d6c
--- /dev/null
+++ b/common/changes/@microsoft/rush-stack-compiler-2.9/user-halfnibble-update-sass_2021-12-09-19-59.json
@@ -0,0 +1,11 @@
+{
+  "changes": [
+    {
+      "packageName": "@microsoft/rush-stack-compiler-2.9",
+      "comment": "Upgrade rushstack dependencies.",
+      "type": "patch"
+    }
+  ],
+  "packageName": "@microsoft/rush-stack-compiler-2.9",
+  "email": "halfnibble@users.noreply.github.com"
+}
\ No newline at end of file
diff --git a/common/changes/@microsoft/rush-stack-compiler-3.0/user-halfnibble-update-sass_2021-12-09-19-59.json b/common/changes/@microsoft/rush-stack-compiler-3.0/user-halfnibble-update-sass_2021-12-09-19-59.json
new file mode 100644
index 0000000..65280c3
--- /dev/null
+++ b/common/changes/@microsoft/rush-stack-compiler-3.0/user-halfnibble-update-sass_2021-12-09-19-59.json
@@ -0,0 +1,11 @@
+{
+  "changes": [
+    {
+      "packageName": "@microsoft/rush-stack-compiler-3.0",
+      "comment": "Upgrade rushstack dependencies.",
+      "type": "patch"
+    }
+  ],
+  "packageName": "@microsoft/rush-stack-compiler-3.0",
+  "email": "halfnibble@users.noreply.github.com"
+}
\ No newline at end of file
diff --git a/common/changes/@microsoft/rush-stack-compiler-3.1/user-halfnibble-update-sass_2021-12-09-19-59.json b/common/changes/@microsoft/rush-stack-compiler-3.1/user-halfnibble-update-sass_2021-12-09-19-59.json
new file mode 100644
index 0000000..5dd508e
--- /dev/null
+++ b/common/changes/@microsoft/rush-stack-compiler-3.1/user-halfnibble-update-sass_2021-12-09-19-59.json
@@ -0,0 +1,11 @@
+{
+  "changes": [
+    {
+      "packageName": "@microsoft/rush-stack-compiler-3.1",
+      "comment": "Upgrade rushstack dependencies.",
+      "type": "patch"
+    }
+  ],
+  "packageName": "@microsoft/rush-stack-compiler-3.1",
+  "email": "halfnibble@users.noreply.github.com"
+}
\ No newline at end of file
diff --git a/common/changes/@microsoft/rush-stack-compiler-3.2/user-halfnibble-update-sass_2021-12-09-19-59.json b/common/changes/@microsoft/rush-stack-compiler-3.2/user-halfnibble-update-sass_2021-12-09-19-59.json
new file mode 100644
index 0000000..f36ed6e
--- /dev/null
+++ b/common/changes/@microsoft/rush-stack-compiler-3.2/user-halfnibble-update-sass_2021-12-09-19-59.json
@@ -0,0 +1,11 @@
+{
+  "changes": [
+    {
+      "packageName": "@microsoft/rush-stack-compiler-3.2",
+      "comment": "Upgrade rushstack dependencies.",
+      "type": "patch"
+    }
+  ],
+  "packageName": "@microsoft/rush-stack-compiler-3.2",
+  "email": "halfnibble@users.noreply.github.com"
+}
\ No newline at end of file
diff --git a/common/changes/@microsoft/rush-stack-compiler-3.3/user-halfnibble-update-sass_2021-12-09-19-59.json b/common/changes/@microsoft/rush-stack-compiler-3.3/user-halfnibble-update-sass_2021-12-09-19-59.json
new file mode 100644
index 0000000..65c1515
--- /dev/null
+++ b/common/changes/@microsoft/rush-stack-compiler-3.3/user-halfnibble-update-sass_2021-12-09-19-59.json
@@ -0,0 +1,11 @@
+{
+  "changes": [
+    {
+      "packageName": "@microsoft/rush-stack-compiler-3.3",
+      "comment": "Upgrade rushstack dependencies.",
+      "type": "patch"
+    }
+  ],
+  "packageName": "@microsoft/rush-stack-compiler-3.3",
+  "email": "halfnibble@users.noreply.github.com"
+}
\ No newline at end of file
diff --git a/common/changes/@microsoft/rush-stack-compiler-3.4/user-halfnibble-update-sass_2021-12-09-19-59.json b/common/changes/@microsoft/rush-stack-compiler-3.4/user-halfnibble-update-sass_2021-12-09-19-59.json
new file mode 100644
index 0000000..07da8e7
--- /dev/null
+++ b/common/changes/@microsoft/rush-stack-compiler-3.4/user-halfnibble-update-sass_2021-12-09-19-59.json
@@ -0,0 +1,11 @@
+{
+  "changes": [
+    {
+      "packageName": "@microsoft/rush-stack-compiler-3.4",
+      "comment": "Upgrade rushstack dependencies.",
+      "type": "patch"
+    }
+  ],
+  "packageName": "@microsoft/rush-stack-compiler-3.4",
+  "email": "halfnibble@users.noreply.github.com"
+}
\ No newline at end of file
diff --git a/common/changes/@microsoft/rush-stack-compiler-3.5/user-halfnibble-update-sass_2021-12-09-19-59.json b/common/changes/@microsoft/rush-stack-compiler-3.5/user-halfnibble-update-sass_2021-12-09-19-59.json
new file mode 100644
index 0000000..69ec8da
--- /dev/null
+++ b/common/changes/@microsoft/rush-stack-compiler-3.5/user-halfnibble-update-sass_2021-12-09-19-59.json
@@ -0,0 +1,11 @@
+{
+  "changes": [
+    {
+      "packageName": "@microsoft/rush-stack-compiler-3.5",
+      "comment": "Upgrade rushstack dependencies.",
+      "type": "patch"
+    }
+  ],
+  "packageName": "@microsoft/rush-stack-compiler-3.5",
+  "email": "halfnibble@users.noreply.github.com"
+}
\ No newline at end of file
diff --git a/common/changes/@microsoft/rush-stack-compiler-3.6/user-halfnibble-update-sass_2021-12-09-19-59.json b/common/changes/@microsoft/rush-stack-compiler-3.6/user-halfnibble-update-sass_2021-12-09-19-59.json
new file mode 100644
index 0000000..4409ac2
--- /dev/null
+++ b/common/changes/@microsoft/rush-stack-compiler-3.6/user-halfnibble-update-sass_2021-12-09-19-59.json
@@ -0,0 +1,11 @@
+{
+  "changes": [
+    {
+      "packageName": "@microsoft/rush-stack-compiler-3.6",
+      "comment": "Upgrade rushstack dependencies.",
+      "type": "patch"
+    }
+  ],
+  "packageName": "@microsoft/rush-stack-compiler-3.6",
+  "email": "halfnibble@users.noreply.github.com"
+}
\ No newline at end of file
diff --git a/common/changes/@microsoft/rush-stack-compiler-3.7/user-halfnibble-update-sass_2021-12-09-19-59.json b/common/changes/@microsoft/rush-stack-compiler-3.7/user-halfnibble-update-sass_2021-12-09-19-59.json
new file mode 100644
index 0000000..23705cc
--- /dev/null
+++ b/common/changes/@microsoft/rush-stack-compiler-3.7/user-halfnibble-update-sass_2021-12-09-19-59.json
@@ -0,0 +1,11 @@
+{
+  "changes": [
+    {
+      "packageName": "@microsoft/rush-stack-compiler-3.7",
+      "comment": "Upgrade rushstack dependencies.",
+      "type": "patch"
+    }
+  ],
+  "packageName": "@microsoft/rush-stack-compiler-3.7",
+  "email": "halfnibble@users.noreply.github.com"
+}
\ No newline at end of file
diff --git a/common/changes/@microsoft/rush-stack-compiler-3.8/user-halfnibble-update-sass_2021-12-09-21-01.json b/common/changes/@microsoft/rush-stack-compiler-3.8/user-halfnibble-update-sass_2021-12-09-21-01.json
new file mode 100644
index 0000000..2a63d08
--- /dev/null
+++ b/common/changes/@microsoft/rush-stack-compiler-3.8/user-halfnibble-update-sass_2021-12-09-21-01.json
@@ -0,0 +1,11 @@
+{
+  "changes": [
+    {
+      "packageName": "@microsoft/rush-stack-compiler-3.8",
+      "comment": "Upgrade rushstack dependencies.",
+      "type": "patch"
+    }
+  ],
+  "packageName": "@microsoft/rush-stack-compiler-3.8",
+  "email": "halfnibble@users.noreply.github.com"
+}
\ No newline at end of file
diff --git a/common/changes/@microsoft/rush-stack-compiler-3.9/user-halfnibble-update-sass_2021-12-09-21-01.json b/common/changes/@microsoft/rush-stack-compiler-3.9/user-halfnibble-update-sass_2021-12-09-21-01.json
new file mode 100644
index 0000000..fea09f1
--- /dev/null
+++ b/common/changes/@microsoft/rush-stack-compiler-3.9/user-halfnibble-update-sass_2021-12-09-21-01.json
@@ -0,0 +1,11 @@
+{
+  "changes": [
+    {
+      "packageName": "@microsoft/rush-stack-compiler-3.9",
+      "comment": "Upgrade rushstack dependencies.",
+      "type": "patch"
+    }
+  ],
+  "packageName": "@microsoft/rush-stack-compiler-3.9",
+  "email": "halfnibble@users.noreply.github.com"
+}
\ No newline at end of file
diff --git a/common/changes/@microsoft/rush-stack-compiler-4.0/user-halfnibble-update-sass_2021-12-09-21-01.json b/common/changes/@microsoft/rush-stack-compiler-4.0/user-halfnibble-update-sass_2021-12-09-21-01.json
new file mode 100644
index 0000000..346fdce
--- /dev/null
+++ b/common/changes/@microsoft/rush-stack-compiler-4.0/user-halfnibble-update-sass_2021-12-09-21-01.json
@@ -0,0 +1,11 @@
+{
+  "changes": [
+    {
+      "packageName": "@microsoft/rush-stack-compiler-4.0",
+      "comment": "Upgrade rushstack dependencies.",
+      "type": "patch"
+    }
+  ],
+  "packageName": "@microsoft/rush-stack-compiler-4.0",
+  "email": "halfnibble@users.noreply.github.com"
+}
\ No newline at end of file
diff --git a/common/changes/@microsoft/rush-stack-compiler-4.1/user-halfnibble-update-sass_2021-12-09-21-01.json b/common/changes/@microsoft/rush-stack-compiler-4.1/user-halfnibble-update-sass_2021-12-09-21-01.json
new file mode 100644
index 0000000..5e0bcef
--- /dev/null
+++ b/common/changes/@microsoft/rush-stack-compiler-4.1/user-halfnibble-update-sass_2021-12-09-21-01.json
@@ -0,0 +1,11 @@
+{
+  "changes": [
+    {
+      "packageName": "@microsoft/rush-stack-compiler-4.1",
+      "comment": "Upgrade rushstack dependencies.",
+      "type": "patch"
+    }
+  ],
+  "packageName": "@microsoft/rush-stack-compiler-4.1",
+  "email": "halfnibble@users.noreply.github.com"
+}
\ No newline at end of file
diff --git a/common/changes/@microsoft/rush-stack-compiler-4.2/user-halfnibble-update-sass_2021-12-09-21-01.json b/common/changes/@microsoft/rush-stack-compiler-4.2/user-halfnibble-update-sass_2021-12-09-21-01.json
new file mode 100644
index 0000000..f270ab6
--- /dev/null
+++ b/common/changes/@microsoft/rush-stack-compiler-4.2/user-halfnibble-update-sass_2021-12-09-21-01.json
@@ -0,0 +1,11 @@
+{
+  "changes": [
+    {
+      "packageName": "@microsoft/rush-stack-compiler-4.2",
+      "comment": "Upgrade rushstack dependencies.",
+      "type": "patch"
+    }
+  ],
+  "packageName": "@microsoft/rush-stack-compiler-4.2",
+  "email": "halfnibble@users.noreply.github.com"
+}
\ No newline at end of file
diff --git a/common/changes/@microsoft/web-library-build/user-halfnibble-update-sass_2021-12-09-21-01.json b/common/changes/@microsoft/web-library-build/user-halfnibble-update-sass_2021-12-09-21-01.json
new file mode 100644
index 0000000..a02e6b3
--- /dev/null
+++ b/common/changes/@microsoft/web-library-build/user-halfnibble-update-sass_2021-12-09-21-01.json
@@ -0,0 +1,11 @@
+{
+  "changes": [
+    {
+      "packageName": "@microsoft/web-library-build",
+      "comment": "Upgrade rushstack dependencies.",
+      "type": "patch"
+    }
+  ],
+  "packageName": "@microsoft/web-library-build",
+  "email": "halfnibble@users.noreply.github.com"
+}
\ No newline at end of file