diff --git a/descriptions/api.github.com/api.github.com.2022-11-28.json b/descriptions/api.github.com/api.github.com.2022-11-28.json
index cc9512f51d..26535345fc 100644
--- a/descriptions/api.github.com/api.github.com.2022-11-28.json
+++ b/descriptions/api.github.com/api.github.com.2022-11-28.json
@@ -297635,7 +297635,7 @@
       },
       "billing-usage-report-year": {
         "name": "year",
-        "description": "If specified, only return results for a single year. The value of `year` is an integer with four digits representing a year. For example, `2024`. Default value is the current year.",
+        "description": "If specified, only return results for a single year. The value of `year` is an integer with four digits representing a year. For example, `2025`. Default value is the current year.",
         "in": "query",
         "required": false,
         "schema": {
@@ -297644,7 +297644,7 @@
       },
       "billing-usage-report-month": {
         "name": "month",
-        "description": "If specified, only return results for a single month. The value of `month` is an integer between `1` and `12`.",
+        "description": "If specified, only return results for a single month. The value of `month` is an integer between `1` and `12`. If no year is specified the default `year` is used.",
         "in": "query",
         "required": false,
         "schema": {
@@ -297653,7 +297653,7 @@
       },
       "billing-usage-report-day": {
         "name": "day",
-        "description": "If specified, only return results for a single day. The value of `day` is an integer between `1` and `31`.",
+        "description": "If specified, only return results for a single day. The value of `day` is an integer between `1` and `31`. If no `year` or `month` is specified, the default `year` and `month` are used.",
         "in": "query",
         "required": false,
         "schema": {
@@ -297662,7 +297662,7 @@
       },
       "billing-usage-report-hour": {
         "name": "hour",
-        "description": "If specified, only return results for a single hour. The value of `hour` is an integer between `0` and `23`.",
+        "description": "If specified, only return results for a single hour. The value of `hour` is an integer between `0` and `23`. If no `year`, `month`, or `day` is specified, the default `year`, `month`, and `day` are used.",
         "in": "query",
         "required": false,
         "schema": {
diff --git a/descriptions/api.github.com/api.github.com.2022-11-28.yaml b/descriptions/api.github.com/api.github.com.2022-11-28.yaml
index 4399832e49..8c61ba7124 100644
--- a/descriptions/api.github.com/api.github.com.2022-11-28.yaml
+++ b/descriptions/api.github.com/api.github.com.2022-11-28.yaml
@@ -226078,7 +226078,7 @@ components:
       name: year
       description: If specified, only return results for a single year. The value
         of `year` is an integer with four digits representing a year. For example,
-        `2024`. Default value is the current year.
+        `2025`. Default value is the current year.
       in: query
       required: false
       schema:
@@ -226086,7 +226086,8 @@ components:
     billing-usage-report-month:
       name: month
       description: If specified, only return results for a single month. The value
-        of `month` is an integer between `1` and `12`.
+        of `month` is an integer between `1` and `12`. If no year is specified the
+        default `year` is used.
       in: query
       required: false
       schema:
@@ -226094,7 +226095,8 @@ components:
     billing-usage-report-day:
       name: day
       description: If specified, only return results for a single day. The value of
-        `day` is an integer between `1` and `31`.
+        `day` is an integer between `1` and `31`. If no `year` or `month` is specified,
+        the default `year` and `month` are used.
       in: query
       required: false
       schema:
@@ -226102,7 +226104,8 @@ components:
     billing-usage-report-hour:
       name: hour
       description: If specified, only return results for a single hour. The value
-        of `hour` is an integer between `0` and `23`.
+        of `hour` is an integer between `0` and `23`. If no `year`, `month`, or `day`
+        is specified, the default `year`, `month`, and `day` are used.
       in: query
       required: false
       schema:
diff --git a/descriptions/api.github.com/api.github.com.json b/descriptions/api.github.com/api.github.com.json
index cc9512f51d..26535345fc 100644
--- a/descriptions/api.github.com/api.github.com.json
+++ b/descriptions/api.github.com/api.github.com.json
@@ -297635,7 +297635,7 @@
       },
       "billing-usage-report-year": {
         "name": "year",
-        "description": "If specified, only return results for a single year. The value of `year` is an integer with four digits representing a year. For example, `2024`. Default value is the current year.",
+        "description": "If specified, only return results for a single year. The value of `year` is an integer with four digits representing a year. For example, `2025`. Default value is the current year.",
         "in": "query",
         "required": false,
         "schema": {
@@ -297644,7 +297644,7 @@
       },
       "billing-usage-report-month": {
         "name": "month",
-        "description": "If specified, only return results for a single month. The value of `month` is an integer between `1` and `12`.",
+        "description": "If specified, only return results for a single month. The value of `month` is an integer between `1` and `12`. If no year is specified the default `year` is used.",
         "in": "query",
         "required": false,
         "schema": {
@@ -297653,7 +297653,7 @@
       },
       "billing-usage-report-day": {
         "name": "day",
-        "description": "If specified, only return results for a single day. The value of `day` is an integer between `1` and `31`.",
+        "description": "If specified, only return results for a single day. The value of `day` is an integer between `1` and `31`. If no `year` or `month` is specified, the default `year` and `month` are used.",
         "in": "query",
         "required": false,
         "schema": {
@@ -297662,7 +297662,7 @@
       },
       "billing-usage-report-hour": {
         "name": "hour",
-        "description": "If specified, only return results for a single hour. The value of `hour` is an integer between `0` and `23`.",
+        "description": "If specified, only return results for a single hour. The value of `hour` is an integer between `0` and `23`. If no `year`, `month`, or `day` is specified, the default `year`, `month`, and `day` are used.",
         "in": "query",
         "required": false,
         "schema": {
diff --git a/descriptions/api.github.com/api.github.com.yaml b/descriptions/api.github.com/api.github.com.yaml
index 4399832e49..8c61ba7124 100644
--- a/descriptions/api.github.com/api.github.com.yaml
+++ b/descriptions/api.github.com/api.github.com.yaml
@@ -226078,7 +226078,7 @@ components:
       name: year
       description: If specified, only return results for a single year. The value
         of `year` is an integer with four digits representing a year. For example,
-        `2024`. Default value is the current year.
+        `2025`. Default value is the current year.
       in: query
       required: false
       schema:
@@ -226086,7 +226086,8 @@ components:
     billing-usage-report-month:
       name: month
       description: If specified, only return results for a single month. The value
-        of `month` is an integer between `1` and `12`.
+        of `month` is an integer between `1` and `12`. If no year is specified the
+        default `year` is used.
       in: query
       required: false
       schema:
@@ -226094,7 +226095,8 @@ components:
     billing-usage-report-day:
       name: day
       description: If specified, only return results for a single day. The value of
-        `day` is an integer between `1` and `31`.
+        `day` is an integer between `1` and `31`. If no `year` or `month` is specified,
+        the default `year` and `month` are used.
       in: query
       required: false
       schema:
@@ -226102,7 +226104,8 @@ components:
     billing-usage-report-hour:
       name: hour
       description: If specified, only return results for a single hour. The value
-        of `hour` is an integer between `0` and `23`.
+        of `hour` is an integer between `0` and `23`. If no `year`, `month`, or `day`
+        is specified, the default `year`, `month`, and `day` are used.
       in: query
       required: false
       schema:
diff --git a/descriptions/api.github.com/dereferenced/api.github.com.2022-11-28.deref.json b/descriptions/api.github.com/dereferenced/api.github.com.2022-11-28.deref.json
index 9992657571..ca72582288 100644
--- a/descriptions/api.github.com/dereferenced/api.github.com.2022-11-28.deref.json
+++ b/descriptions/api.github.com/dereferenced/api.github.com.2022-11-28.deref.json
@@ -49627,7 +49627,7 @@
           },
           {
             "name": "year",
-            "description": "If specified, only return results for a single year. The value of `year` is an integer with four digits representing a year. For example, `2024`. Default value is the current year.",
+            "description": "If specified, only return results for a single year. The value of `year` is an integer with four digits representing a year. For example, `2025`. Default value is the current year.",
             "in": "query",
             "required": false,
             "schema": {
@@ -49636,7 +49636,7 @@
           },
           {
             "name": "month",
-            "description": "If specified, only return results for a single month. The value of `month` is an integer between `1` and `12`.",
+            "description": "If specified, only return results for a single month. The value of `month` is an integer between `1` and `12`. If no year is specified the default `year` is used.",
             "in": "query",
             "required": false,
             "schema": {
@@ -49645,7 +49645,7 @@
           },
           {
             "name": "day",
-            "description": "If specified, only return results for a single day. The value of `day` is an integer between `1` and `31`.",
+            "description": "If specified, only return results for a single day. The value of `day` is an integer between `1` and `31`. If no `year` or `month` is specified, the default `year` and `month` are used.",
             "in": "query",
             "required": false,
             "schema": {
@@ -49654,7 +49654,7 @@
           },
           {
             "name": "hour",
-            "description": "If specified, only return results for a single hour. The value of `hour` is an integer between `0` and `23`.",
+            "description": "If specified, only return results for a single hour. The value of `hour` is an integer between `0` and `23`. If no `year`, `month`, or `day` is specified, the default `year`, `month`, and `day` are used.",
             "in": "query",
             "required": false,
             "schema": {
diff --git a/descriptions/api.github.com/dereferenced/api.github.com.2022-11-28.deref.yaml b/descriptions/api.github.com/dereferenced/api.github.com.2022-11-28.deref.yaml
index c2d662b521..e125e07a78 100644
--- a/descriptions/api.github.com/dereferenced/api.github.com.2022-11-28.deref.yaml
+++ b/descriptions/api.github.com/dereferenced/api.github.com.2022-11-28.deref.yaml
@@ -15109,28 +15109,31 @@ paths:
       - name: year
         description: If specified, only return results for a single year. The value
           of `year` is an integer with four digits representing a year. For example,
-          `2024`. Default value is the current year.
+          `2025`. Default value is the current year.
         in: query
         required: false
         schema:
           type: integer
       - name: month
         description: If specified, only return results for a single month. The value
-          of `month` is an integer between `1` and `12`.
+          of `month` is an integer between `1` and `12`. If no year is specified the
+          default `year` is used.
         in: query
         required: false
         schema:
           type: integer
       - name: day
         description: If specified, only return results for a single day. The value
-          of `day` is an integer between `1` and `31`.
+          of `day` is an integer between `1` and `31`. If no `year` or `month` is
+          specified, the default `year` and `month` are used.
         in: query
         required: false
         schema:
           type: integer
       - name: hour
         description: If specified, only return results for a single hour. The value
-          of `hour` is an integer between `0` and `23`.
+          of `hour` is an integer between `0` and `23`. If no `year`, `month`, or
+          `day` is specified, the default `year`, `month`, and `day` are used.
         in: query
         required: false
         schema:
diff --git a/descriptions/api.github.com/dereferenced/api.github.com.deref.json b/descriptions/api.github.com/dereferenced/api.github.com.deref.json
index 9992657571..ca72582288 100644
--- a/descriptions/api.github.com/dereferenced/api.github.com.deref.json
+++ b/descriptions/api.github.com/dereferenced/api.github.com.deref.json
@@ -49627,7 +49627,7 @@
           },
           {
             "name": "year",
-            "description": "If specified, only return results for a single year. The value of `year` is an integer with four digits representing a year. For example, `2024`. Default value is the current year.",
+            "description": "If specified, only return results for a single year. The value of `year` is an integer with four digits representing a year. For example, `2025`. Default value is the current year.",
             "in": "query",
             "required": false,
             "schema": {
@@ -49636,7 +49636,7 @@
           },
           {
             "name": "month",
-            "description": "If specified, only return results for a single month. The value of `month` is an integer between `1` and `12`.",
+            "description": "If specified, only return results for a single month. The value of `month` is an integer between `1` and `12`. If no year is specified the default `year` is used.",
             "in": "query",
             "required": false,
             "schema": {
@@ -49645,7 +49645,7 @@
           },
           {
             "name": "day",
-            "description": "If specified, only return results for a single day. The value of `day` is an integer between `1` and `31`.",
+            "description": "If specified, only return results for a single day. The value of `day` is an integer between `1` and `31`. If no `year` or `month` is specified, the default `year` and `month` are used.",
             "in": "query",
             "required": false,
             "schema": {
@@ -49654,7 +49654,7 @@
           },
           {
             "name": "hour",
-            "description": "If specified, only return results for a single hour. The value of `hour` is an integer between `0` and `23`.",
+            "description": "If specified, only return results for a single hour. The value of `hour` is an integer between `0` and `23`. If no `year`, `month`, or `day` is specified, the default `year`, `month`, and `day` are used.",
             "in": "query",
             "required": false,
             "schema": {
diff --git a/descriptions/api.github.com/dereferenced/api.github.com.deref.yaml b/descriptions/api.github.com/dereferenced/api.github.com.deref.yaml
index c2d662b521..e125e07a78 100644
--- a/descriptions/api.github.com/dereferenced/api.github.com.deref.yaml
+++ b/descriptions/api.github.com/dereferenced/api.github.com.deref.yaml
@@ -15109,28 +15109,31 @@ paths:
       - name: year
         description: If specified, only return results for a single year. The value
           of `year` is an integer with four digits representing a year. For example,
-          `2024`. Default value is the current year.
+          `2025`. Default value is the current year.
         in: query
         required: false
         schema:
           type: integer
       - name: month
         description: If specified, only return results for a single month. The value
-          of `month` is an integer between `1` and `12`.
+          of `month` is an integer between `1` and `12`. If no year is specified the
+          default `year` is used.
         in: query
         required: false
         schema:
           type: integer
       - name: day
         description: If specified, only return results for a single day. The value
-          of `day` is an integer between `1` and `31`.
+          of `day` is an integer between `1` and `31`. If no `year` or `month` is
+          specified, the default `year` and `month` are used.
         in: query
         required: false
         schema:
           type: integer
       - name: hour
         description: If specified, only return results for a single hour. The value
-          of `hour` is an integer between `0` and `23`.
+          of `hour` is an integer between `0` and `23`. If no `year`, `month`, or
+          `day` is specified, the default `year`, `month`, and `day` are used.
         in: query
         required: false
         schema:
diff --git a/descriptions/ghec/dereferenced/ghec.2022-11-28.deref.json b/descriptions/ghec/dereferenced/ghec.2022-11-28.deref.json
index 63f043a1a5..20cf0f186f 100644
--- a/descriptions/ghec/dereferenced/ghec.2022-11-28.deref.json
+++ b/descriptions/ghec/dereferenced/ghec.2022-11-28.deref.json
@@ -46308,7 +46308,7 @@
           },
           {
             "name": "year",
-            "description": "If specified, only return results for a single year. The value of `year` is an integer with four digits representing a year. For example, `2024`. Default value is the current year.",
+            "description": "If specified, only return results for a single year. The value of `year` is an integer with four digits representing a year. For example, `2025`. Default value is the current year.",
             "in": "query",
             "required": false,
             "schema": {
@@ -46317,7 +46317,7 @@
           },
           {
             "name": "month",
-            "description": "If specified, only return results for a single month. The value of `month` is an integer between `1` and `12`.",
+            "description": "If specified, only return results for a single month. The value of `month` is an integer between `1` and `12`. If no year is specified the default `year` is used.",
             "in": "query",
             "required": false,
             "schema": {
@@ -46326,7 +46326,7 @@
           },
           {
             "name": "day",
-            "description": "If specified, only return results for a single day. The value of `day` is an integer between `1` and `31`.",
+            "description": "If specified, only return results for a single day. The value of `day` is an integer between `1` and `31`. If no `year` or `month` is specified, the default `year` and `month` are used.",
             "in": "query",
             "required": false,
             "schema": {
@@ -46335,7 +46335,7 @@
           },
           {
             "name": "hour",
-            "description": "If specified, only return results for a single hour. The value of `hour` is an integer between `0` and `23`.",
+            "description": "If specified, only return results for a single hour. The value of `hour` is an integer between `0` and `23`. If no `year`, `month`, or `day` is specified, the default `year`, `month`, and `day` are used.",
             "in": "query",
             "required": false,
             "schema": {
@@ -74655,7 +74655,7 @@
           },
           {
             "name": "year",
-            "description": "If specified, only return results for a single year. The value of `year` is an integer with four digits representing a year. For example, `2024`. Default value is the current year.",
+            "description": "If specified, only return results for a single year. The value of `year` is an integer with four digits representing a year. For example, `2025`. Default value is the current year.",
             "in": "query",
             "required": false,
             "schema": {
@@ -74664,7 +74664,7 @@
           },
           {
             "name": "month",
-            "description": "If specified, only return results for a single month. The value of `month` is an integer between `1` and `12`.",
+            "description": "If specified, only return results for a single month. The value of `month` is an integer between `1` and `12`. If no year is specified the default `year` is used.",
             "in": "query",
             "required": false,
             "schema": {
@@ -74673,7 +74673,7 @@
           },
           {
             "name": "day",
-            "description": "If specified, only return results for a single day. The value of `day` is an integer between `1` and `31`.",
+            "description": "If specified, only return results for a single day. The value of `day` is an integer between `1` and `31`. If no `year` or `month` is specified, the default `year` and `month` are used.",
             "in": "query",
             "required": false,
             "schema": {
@@ -74682,7 +74682,7 @@
           },
           {
             "name": "hour",
-            "description": "If specified, only return results for a single hour. The value of `hour` is an integer between `0` and `23`.",
+            "description": "If specified, only return results for a single hour. The value of `hour` is an integer between `0` and `23`. If no `year`, `month`, or `day` is specified, the default `year`, `month`, and `day` are used.",
             "in": "query",
             "required": false,
             "schema": {
diff --git a/descriptions/ghec/dereferenced/ghec.2022-11-28.deref.yaml b/descriptions/ghec/dereferenced/ghec.2022-11-28.deref.yaml
index 8a9abfb650..ab2133ccb5 100644
--- a/descriptions/ghec/dereferenced/ghec.2022-11-28.deref.yaml
+++ b/descriptions/ghec/dereferenced/ghec.2022-11-28.deref.yaml
@@ -17923,7 +17923,7 @@ paths:
         name: year
         description: If specified, only return results for a single year. The value
           of `year` is an integer with four digits representing a year. For example,
-          `2024`. Default value is the current year.
+          `2025`. Default value is the current year.
         in: query
         required: false
         schema:
@@ -17931,7 +17931,8 @@ paths:
       - &169
         name: month
         description: If specified, only return results for a single month. The value
-          of `month` is an integer between `1` and `12`.
+          of `month` is an integer between `1` and `12`. If no year is specified the
+          default `year` is used.
         in: query
         required: false
         schema:
@@ -17939,7 +17940,8 @@ paths:
       - &170
         name: day
         description: If specified, only return results for a single day. The value
-          of `day` is an integer between `1` and `31`.
+          of `day` is an integer between `1` and `31`. If no `year` or `month` is
+          specified, the default `year` and `month` are used.
         in: query
         required: false
         schema:
@@ -17947,7 +17949,8 @@ paths:
       - &171
         name: hour
         description: If specified, only return results for a single hour. The value
-          of `hour` is an integer between `0` and `23`.
+          of `hour` is an integer between `0` and `23`. If no `year`, `month`, or
+          `day` is specified, the default `year`, `month`, and `day` are used.
         in: query
         required: false
         schema:
diff --git a/descriptions/ghec/dereferenced/ghec.deref.json b/descriptions/ghec/dereferenced/ghec.deref.json
index 63f043a1a5..20cf0f186f 100644
--- a/descriptions/ghec/dereferenced/ghec.deref.json
+++ b/descriptions/ghec/dereferenced/ghec.deref.json
@@ -46308,7 +46308,7 @@
           },
           {
             "name": "year",
-            "description": "If specified, only return results for a single year. The value of `year` is an integer with four digits representing a year. For example, `2024`. Default value is the current year.",
+            "description": "If specified, only return results for a single year. The value of `year` is an integer with four digits representing a year. For example, `2025`. Default value is the current year.",
             "in": "query",
             "required": false,
             "schema": {
@@ -46317,7 +46317,7 @@
           },
           {
             "name": "month",
-            "description": "If specified, only return results for a single month. The value of `month` is an integer between `1` and `12`.",
+            "description": "If specified, only return results for a single month. The value of `month` is an integer between `1` and `12`. If no year is specified the default `year` is used.",
             "in": "query",
             "required": false,
             "schema": {
@@ -46326,7 +46326,7 @@
           },
           {
             "name": "day",
-            "description": "If specified, only return results for a single day. The value of `day` is an integer between `1` and `31`.",
+            "description": "If specified, only return results for a single day. The value of `day` is an integer between `1` and `31`. If no `year` or `month` is specified, the default `year` and `month` are used.",
             "in": "query",
             "required": false,
             "schema": {
@@ -46335,7 +46335,7 @@
           },
           {
             "name": "hour",
-            "description": "If specified, only return results for a single hour. The value of `hour` is an integer between `0` and `23`.",
+            "description": "If specified, only return results for a single hour. The value of `hour` is an integer between `0` and `23`. If no `year`, `month`, or `day` is specified, the default `year`, `month`, and `day` are used.",
             "in": "query",
             "required": false,
             "schema": {
@@ -74655,7 +74655,7 @@
           },
           {
             "name": "year",
-            "description": "If specified, only return results for a single year. The value of `year` is an integer with four digits representing a year. For example, `2024`. Default value is the current year.",
+            "description": "If specified, only return results for a single year. The value of `year` is an integer with four digits representing a year. For example, `2025`. Default value is the current year.",
             "in": "query",
             "required": false,
             "schema": {
@@ -74664,7 +74664,7 @@
           },
           {
             "name": "month",
-            "description": "If specified, only return results for a single month. The value of `month` is an integer between `1` and `12`.",
+            "description": "If specified, only return results for a single month. The value of `month` is an integer between `1` and `12`. If no year is specified the default `year` is used.",
             "in": "query",
             "required": false,
             "schema": {
@@ -74673,7 +74673,7 @@
           },
           {
             "name": "day",
-            "description": "If specified, only return results for a single day. The value of `day` is an integer between `1` and `31`.",
+            "description": "If specified, only return results for a single day. The value of `day` is an integer between `1` and `31`. If no `year` or `month` is specified, the default `year` and `month` are used.",
             "in": "query",
             "required": false,
             "schema": {
@@ -74682,7 +74682,7 @@
           },
           {
             "name": "hour",
-            "description": "If specified, only return results for a single hour. The value of `hour` is an integer between `0` and `23`.",
+            "description": "If specified, only return results for a single hour. The value of `hour` is an integer between `0` and `23`. If no `year`, `month`, or `day` is specified, the default `year`, `month`, and `day` are used.",
             "in": "query",
             "required": false,
             "schema": {
diff --git a/descriptions/ghec/dereferenced/ghec.deref.yaml b/descriptions/ghec/dereferenced/ghec.deref.yaml
index 8a9abfb650..ab2133ccb5 100644
--- a/descriptions/ghec/dereferenced/ghec.deref.yaml
+++ b/descriptions/ghec/dereferenced/ghec.deref.yaml
@@ -17923,7 +17923,7 @@ paths:
         name: year
         description: If specified, only return results for a single year. The value
           of `year` is an integer with four digits representing a year. For example,
-          `2024`. Default value is the current year.
+          `2025`. Default value is the current year.
         in: query
         required: false
         schema:
@@ -17931,7 +17931,8 @@ paths:
       - &169
         name: month
         description: If specified, only return results for a single month. The value
-          of `month` is an integer between `1` and `12`.
+          of `month` is an integer between `1` and `12`. If no year is specified the
+          default `year` is used.
         in: query
         required: false
         schema:
@@ -17939,7 +17940,8 @@ paths:
       - &170
         name: day
         description: If specified, only return results for a single day. The value
-          of `day` is an integer between `1` and `31`.
+          of `day` is an integer between `1` and `31`. If no `year` or `month` is
+          specified, the default `year` and `month` are used.
         in: query
         required: false
         schema:
@@ -17947,7 +17949,8 @@ paths:
       - &171
         name: hour
         description: If specified, only return results for a single hour. The value
-          of `hour` is an integer between `0` and `23`.
+          of `hour` is an integer between `0` and `23`. If no `year`, `month`, or
+          `day` is specified, the default `year`, `month`, and `day` are used.
         in: query
         required: false
         schema:
diff --git a/descriptions/ghec/ghec.2022-11-28.json b/descriptions/ghec/ghec.2022-11-28.json
index 2d9b249f3f..50fb2cff1a 100644
--- a/descriptions/ghec/ghec.2022-11-28.json
+++ b/descriptions/ghec/ghec.2022-11-28.json
@@ -312810,7 +312810,7 @@
       },
       "billing-usage-report-year": {
         "name": "year",
-        "description": "If specified, only return results for a single year. The value of `year` is an integer with four digits representing a year. For example, `2024`. Default value is the current year.",
+        "description": "If specified, only return results for a single year. The value of `year` is an integer with four digits representing a year. For example, `2025`. Default value is the current year.",
         "in": "query",
         "required": false,
         "schema": {
@@ -312819,7 +312819,7 @@
       },
       "billing-usage-report-month": {
         "name": "month",
-        "description": "If specified, only return results for a single month. The value of `month` is an integer between `1` and `12`.",
+        "description": "If specified, only return results for a single month. The value of `month` is an integer between `1` and `12`. If no year is specified the default `year` is used.",
         "in": "query",
         "required": false,
         "schema": {
@@ -312828,7 +312828,7 @@
       },
       "billing-usage-report-day": {
         "name": "day",
-        "description": "If specified, only return results for a single day. The value of `day` is an integer between `1` and `31`.",
+        "description": "If specified, only return results for a single day. The value of `day` is an integer between `1` and `31`. If no `year` or `month` is specified, the default `year` and `month` are used.",
         "in": "query",
         "required": false,
         "schema": {
@@ -312837,7 +312837,7 @@
       },
       "billing-usage-report-hour": {
         "name": "hour",
-        "description": "If specified, only return results for a single hour. The value of `hour` is an integer between `0` and `23`.",
+        "description": "If specified, only return results for a single hour. The value of `hour` is an integer between `0` and `23`. If no `year`, `month`, or `day` is specified, the default `year`, `month`, and `day` are used.",
         "in": "query",
         "required": false,
         "schema": {
diff --git a/descriptions/ghec/ghec.2022-11-28.yaml b/descriptions/ghec/ghec.2022-11-28.yaml
index aefbf983a0..360d92ff1f 100644
--- a/descriptions/ghec/ghec.2022-11-28.yaml
+++ b/descriptions/ghec/ghec.2022-11-28.yaml
@@ -237153,7 +237153,7 @@ components:
       name: year
       description: If specified, only return results for a single year. The value
         of `year` is an integer with four digits representing a year. For example,
-        `2024`. Default value is the current year.
+        `2025`. Default value is the current year.
       in: query
       required: false
       schema:
@@ -237161,7 +237161,8 @@ components:
     billing-usage-report-month:
       name: month
       description: If specified, only return results for a single month. The value
-        of `month` is an integer between `1` and `12`.
+        of `month` is an integer between `1` and `12`. If no year is specified the
+        default `year` is used.
       in: query
       required: false
       schema:
@@ -237169,7 +237170,8 @@ components:
     billing-usage-report-day:
       name: day
       description: If specified, only return results for a single day. The value of
-        `day` is an integer between `1` and `31`.
+        `day` is an integer between `1` and `31`. If no `year` or `month` is specified,
+        the default `year` and `month` are used.
       in: query
       required: false
       schema:
@@ -237177,7 +237179,8 @@ components:
     billing-usage-report-hour:
       name: hour
       description: If specified, only return results for a single hour. The value
-        of `hour` is an integer between `0` and `23`.
+        of `hour` is an integer between `0` and `23`. If no `year`, `month`, or `day`
+        is specified, the default `year`, `month`, and `day` are used.
       in: query
       required: false
       schema:
diff --git a/descriptions/ghec/ghec.json b/descriptions/ghec/ghec.json
index 2d9b249f3f..50fb2cff1a 100644
--- a/descriptions/ghec/ghec.json
+++ b/descriptions/ghec/ghec.json
@@ -312810,7 +312810,7 @@
       },
       "billing-usage-report-year": {
         "name": "year",
-        "description": "If specified, only return results for a single year. The value of `year` is an integer with four digits representing a year. For example, `2024`. Default value is the current year.",
+        "description": "If specified, only return results for a single year. The value of `year` is an integer with four digits representing a year. For example, `2025`. Default value is the current year.",
         "in": "query",
         "required": false,
         "schema": {
@@ -312819,7 +312819,7 @@
       },
       "billing-usage-report-month": {
         "name": "month",
-        "description": "If specified, only return results for a single month. The value of `month` is an integer between `1` and `12`.",
+        "description": "If specified, only return results for a single month. The value of `month` is an integer between `1` and `12`. If no year is specified the default `year` is used.",
         "in": "query",
         "required": false,
         "schema": {
@@ -312828,7 +312828,7 @@
       },
       "billing-usage-report-day": {
         "name": "day",
-        "description": "If specified, only return results for a single day. The value of `day` is an integer between `1` and `31`.",
+        "description": "If specified, only return results for a single day. The value of `day` is an integer between `1` and `31`. If no `year` or `month` is specified, the default `year` and `month` are used.",
         "in": "query",
         "required": false,
         "schema": {
@@ -312837,7 +312837,7 @@
       },
       "billing-usage-report-hour": {
         "name": "hour",
-        "description": "If specified, only return results for a single hour. The value of `hour` is an integer between `0` and `23`.",
+        "description": "If specified, only return results for a single hour. The value of `hour` is an integer between `0` and `23`. If no `year`, `month`, or `day` is specified, the default `year`, `month`, and `day` are used.",
         "in": "query",
         "required": false,
         "schema": {
diff --git a/descriptions/ghec/ghec.yaml b/descriptions/ghec/ghec.yaml
index aefbf983a0..360d92ff1f 100644
--- a/descriptions/ghec/ghec.yaml
+++ b/descriptions/ghec/ghec.yaml
@@ -237153,7 +237153,7 @@ components:
       name: year
       description: If specified, only return results for a single year. The value
         of `year` is an integer with four digits representing a year. For example,
-        `2024`. Default value is the current year.
+        `2025`. Default value is the current year.
       in: query
       required: false
       schema:
@@ -237161,7 +237161,8 @@ components:
     billing-usage-report-month:
       name: month
       description: If specified, only return results for a single month. The value
-        of `month` is an integer between `1` and `12`.
+        of `month` is an integer between `1` and `12`. If no year is specified the
+        default `year` is used.
       in: query
       required: false
       schema:
@@ -237169,7 +237170,8 @@ components:
     billing-usage-report-day:
       name: day
       description: If specified, only return results for a single day. The value of
-        `day` is an integer between `1` and `31`.
+        `day` is an integer between `1` and `31`. If no `year` or `month` is specified,
+        the default `year` and `month` are used.
       in: query
       required: false
       schema:
@@ -237177,7 +237179,8 @@ components:
     billing-usage-report-hour:
       name: hour
       description: If specified, only return results for a single hour. The value
-        of `hour` is an integer between `0` and `23`.
+        of `hour` is an integer between `0` and `23`. If no `year`, `month`, or `day`
+        is specified, the default `year`, `month`, and `day` are used.
       in: query
       required: false
       schema: