diff --git a/api-reference/on-call.openapi.en.json b/api-reference/on-call.openapi.en.json
index a76fc6d4a..5d682bb6a 100644
--- a/api-reference/on-call.openapi.en.json
+++ b/api-reference/on-call.openapi.en.json
@@ -24555,7 +24555,7 @@
           },
           "query": {
             "type": "string",
-            "description": "Case-insensitive regular expression matched against channel name and description; invalid regex syntax falls back to a literal match."
+            "description": "Case-insensitive regular expression matched against channel name and description; invalid regex syntax falls back to a literal match. Must be valid UTF-8 — invalid byte sequences are rejected with `InvalidParameter`."
           },
           "channel_ids": {
             "type": "array",
@@ -24567,7 +24567,7 @@
           },
           "channel_name": {
             "type": "string",
-            "description": "Exact-match filter on channel name. Takes priority over `query` for name filtering."
+            "description": "Exact-match filter on channel name. Takes priority over `query` for name filtering. Must be valid UTF-8 — invalid byte sequences are rejected with `InvalidParameter`."
           }
         }
       },
diff --git a/api-reference/on-call.openapi.zh.json b/api-reference/on-call.openapi.zh.json
index 3d49ef29d..7b428cc79 100644
--- a/api-reference/on-call.openapi.zh.json
+++ b/api-reference/on-call.openapi.zh.json
@@ -24555,7 +24555,7 @@
           },
           "query": {
             "type": "string",
-            "description": "针对协作空间名称和描述的不区分大小写正则匹配；正则语法非法时按字面量匹配。"
+            "description": "针对协作空间名称和描述的不区分大小写正则匹配；正则语法非法时按字面量匹配。必须为合法 UTF-8，非法字节序列会返回 `InvalidParameter`。"
           },
           "channel_ids": {
             "type": "array",
@@ -24567,7 +24567,7 @@
           },
           "channel_name": {
             "type": "string",
-            "description": "协作空间名称精确匹配，优先级高于 `query` 的名称过滤。"
+            "description": "协作空间名称精确匹配，优先级高于 `query` 的名称过滤。必须为合法 UTF-8，非法字节序列会返回 `InvalidParameter`。"
           }
         }
       },
diff --git a/api-reference/openapi.en.json b/api-reference/openapi.en.json
index 36e2edaf6..774bc8a95 100644
--- a/api-reference/openapi.en.json
+++ b/api-reference/openapi.en.json
@@ -13535,7 +13535,7 @@
             "type": "array"
           },
           "channel_name": {
-            "description": "Exact-match filter on channel name. Takes priority over `query` for name filtering.",
+            "description": "Exact-match filter on channel name. Takes priority over `query` for name filtering. Must be valid UTF-8 — invalid byte sequences are rejected with `InvalidParameter`.",
             "type": "string"
           },
           "is_brief": {
@@ -13578,7 +13578,7 @@
             "type": "integer"
           },
           "query": {
-            "description": "Case-insensitive regular expression matched against channel name and description; invalid regex syntax falls back to a literal match.",
+            "description": "Case-insensitive regular expression matched against channel name and description; invalid regex syntax falls back to a literal match. Must be valid UTF-8 — invalid byte sequences are rejected with `InvalidParameter`.",
             "type": "string"
           },
           "team_ids": {
@@ -17886,6 +17886,20 @@
               "null"
             ]
           },
+          "sessionOnError": {
+            "description": "Keep sessions the session sample rate did not draw when they report an error; applies only to sessions that rate missed, so it does nothing alongside a rate of 100.",
+            "type": [
+              "boolean",
+              "null"
+            ]
+          },
+          "sessionReplayOnError": {
+            "description": "The same switch for Session Replay: un-sampled sessions still record and upload their recording only when the session errors.",
+            "type": [
+              "boolean",
+              "null"
+            ]
+          },
           "sessionReplaySampleRate": {
             "description": "Session Replay sampling rate (0-100).",
             "maximum": 100,
diff --git a/api-reference/openapi.zh.json b/api-reference/openapi.zh.json
index 25cbdfae4..edd48f375 100644
--- a/api-reference/openapi.zh.json
+++ b/api-reference/openapi.zh.json
@@ -13535,7 +13535,7 @@
             "type": "array"
           },
           "channel_name": {
-            "description": "协作空间名称精确匹配，优先级高于 `query` 的名称过滤。",
+            "description": "协作空间名称精确匹配，优先级高于 `query` 的名称过滤。必须为合法 UTF-8，非法字节序列会返回 `InvalidParameter`。",
             "type": "string"
           },
           "is_brief": {
@@ -13578,7 +13578,7 @@
             "type": "integer"
           },
           "query": {
-            "description": "针对协作空间名称和描述的不区分大小写正则匹配；正则语法非法时按字面量匹配。",
+            "description": "针对协作空间名称和描述的不区分大小写正则匹配；正则语法非法时按字面量匹配。必须为合法 UTF-8，非法字节序列会返回 `InvalidParameter`。",
             "type": "string"
           },
           "team_ids": {
@@ -17886,6 +17886,20 @@
               "null"
             ]
           },
+          "sessionOnError": {
+            "description": "会话采样率未抽中、但上报了错误的会话也予以保留；仅对采样率未覆盖的会话生效，采样率为 100 时不起作用。",
+            "type": [
+              "boolean",
+              "null"
+            ]
+          },
+          "sessionReplayOnError": {
+            "description": "Session Replay 上的同名开关：未被采样率抽中的会话仍会录制，仅在该会话出错时上传录制内容。",
+            "type": [
+              "boolean",
+              "null"
+            ]
+          },
           "sessionReplaySampleRate": {
             "description": "Session Replay 采样率（0-100）。",
             "maximum": 100,
diff --git a/api-reference/rum.openapi.en.json b/api-reference/rum.openapi.en.json
index 61dd9d3bb..0cacbc356 100644
--- a/api-reference/rum.openapi.en.json
+++ b/api-reference/rum.openapi.en.json
@@ -486,6 +486,20 @@
               "null"
             ]
           },
+          "sessionOnError": {
+            "description": "Keep sessions the session sample rate did not draw when they report an error; applies only to sessions that rate missed, so it does nothing alongside a rate of 100.",
+            "type": [
+              "boolean",
+              "null"
+            ]
+          },
+          "sessionReplayOnError": {
+            "description": "The same switch for Session Replay: un-sampled sessions still record and upload their recording only when the session errors.",
+            "type": [
+              "boolean",
+              "null"
+            ]
+          },
           "sessionReplaySampleRate": {
             "description": "Session Replay sampling rate (0-100).",
             "maximum": 100,
diff --git a/api-reference/rum.openapi.zh.json b/api-reference/rum.openapi.zh.json
index 213c06766..271e929e0 100644
--- a/api-reference/rum.openapi.zh.json
+++ b/api-reference/rum.openapi.zh.json
@@ -486,6 +486,20 @@
               "null"
             ]
           },
+          "sessionOnError": {
+            "description": "会话采样率未抽中、但上报了错误的会话也予以保留；仅对采样率未覆盖的会话生效，采样率为 100 时不起作用。",
+            "type": [
+              "boolean",
+              "null"
+            ]
+          },
+          "sessionReplayOnError": {
+            "description": "Session Replay 上的同名开关：未被采样率抽中的会话仍会录制，仅在该会话出错时上传录制内容。",
+            "type": [
+              "boolean",
+              "null"
+            ]
+          },
           "sessionReplaySampleRate": {
             "description": "Session Replay 采样率（0-100）。",
             "maximum": 100,