--- title: "Changes to Delete" method: POST path: "/v1/session/delete" --- # Changes to Delete `POST /v1/session/delete` > Every recorded change to this operation, newest first. ## Timeline Changed in 3 of 5 revisions. - **2026-07-17** `cc76ee2bed1c`: 11 breaking, 11 warning, 32 info - **2025-05-06** `c0132bcf00a9`: 1 warning, 4 info - **2025-05-04** `d7e615a9c1d6`: 21 breaking, 15 warning, 16 info ## Changes - **2026-07-17** `cc76ee2bed1c`: 11 breaking, 11 warning, 32 info - added the new required request property `files/items/sha256` - added the new required request property `files/items/size` - added the new required request property `model/model_name` - added the new required request property `model/toolsets/items/is_enabled_by_default` - added the new required request property `model/toolsets/items/is_enabled_by_default_in_incognito` - removed `#/components/schemas/Usage` from the `messages/items/usage` request property `anyOf` list - the request property `model/toolsets/items/description` became required - the request property `model/toolsets/items/is_enabled` became required - the request property `model/toolsets/items/is_experimental` became required - removed the enum value `retriving` of the request property `messages/items/state` - removed the enum value `retriving` of the request property `state` - removed the request property `messages/items/message_sub_type` - removed the request property `model/is_experimental` - added the new `sec-gemini/canvas` enum value to the `mime_type/anyOf[subschema #1: MimeType]/` response property for the response status `200` - added the new `sec-gemini/code` enum value to the `mime_type/anyOf[subschema #1: MimeType]/` response property for the response status `200` - added the new `sec-gemini/graph` enum value to the `mime_type/anyOf[subschema #1: MimeType]/` response property for the response status `200` - added the new `sec-gemini/html` enum value to the `mime_type/anyOf[subschema #1: MimeType]/` response property for the response status `200` - added the new `sec-gemini/image` enum value to the `mime_type/anyOf[subschema #1: MimeType]/` response property for the response status `200` - added the new `sec-gemini/json` enum value to the `mime_type/anyOf[subschema #1: MimeType]/` response property for the response status `200` - added the new `sec-gemini/markdown` enum value to the `mime_type/anyOf[subschema #1: MimeType]/` response property for the response status `200` - added the new `sec-gemini/table` enum value to the `mime_type/anyOf[subschema #1: MimeType]/` response property for the response status `200` - added the new `sec-gemini/timeline` enum value to the `mime_type/anyOf[subschema #1: MimeType]/` response property for the response status `200` - added the new optional request property `files/items/content_type_label` - added the new optional request property `messages/items/created_at` - added the new optional request property `messages/items/icon` - added the new optional request property `messages/items/text_color` - added the new optional request property `messages/items/title` - added the new optional request property `model/description` - added the new optional request property `model/use_experimental` - added the new optional request property `usage/cached_token_count` - added the new optional request property `usage/prompt_tokens_details` - added the new optional request property `usage/thoughts_token_count` - added the new optional request property `usage/tool_use_prompt_token_count` - added `#/components/schemas/Usage-Input` to the `messages/items/usage` request property `anyOf` list - the `is_enabled` request property default value `true` was removed - the `is_experimental` request property default value `false` was removed - the `usage` request property default value `{"prompt_tokens":0,"generated_tokens":0,"total_tokens":0}` was removed - added the new `end` enum value to the request property `messages/items/state` - added the new `end` enum value to the request property `state` - added the new `retrieving` enum value to the request property `messages/items/state` - …14 more - **2025-05-06** `c0132bcf00a9`: 1 warning, 4 info - removed the request property `model/subagents` - added the new optional request property `model/toolsets` - added the new `confirmation_request` enum value to the request property `messages/items/message_type` - added the new `confirmation_response` enum value to the request property `messages/items/message_type` - added the new `source` enum value to the request property `messages/items/message_type` - **2025-05-04** `d7e615a9c1d6`: 21 breaking, 15 warning, 16 info - removed `#/components/schemas/Usage-Input` from the `messages/items/usage` request property `anyOf` list - removed the enum value `confirmation_request` of the request property `messages/items/message_type` - removed the enum value `confirmation_response` of the request property `messages/items/message_type` - removed the enum value `end` of the request property `messages/items/state` - removed the enum value `end` of the request property `state` - removed the enum value `retrieving` of the request property `messages/items/state` - removed the enum value `retrieving` of the request property `state` - removed the enum value `sec-gemini/canvas` of the request property `messages/items/mime_type/anyOf[subschema #1: MimeType]/` - removed the enum value `sec-gemini/code` of the request property `messages/items/mime_type/anyOf[subschema #1: MimeType]/` - removed the enum value `sec-gemini/graph` of the request property `messages/items/mime_type/anyOf[subschema #1: MimeType]/` - removed the enum value `sec-gemini/html` of the request property `messages/items/mime_type/anyOf[subschema #1: MimeType]/` - removed the enum value `sec-gemini/image` of the request property `messages/items/mime_type/anyOf[subschema #1: MimeType]/` - removed the enum value `sec-gemini/json` of the request property `messages/items/mime_type/anyOf[subschema #1: MimeType]/` - removed the enum value `sec-gemini/markdown` of the request property `messages/items/mime_type/anyOf[subschema #1: MimeType]/` - removed the enum value `sec-gemini/table` of the request property `messages/items/mime_type/anyOf[subschema #1: MimeType]/` - removed the enum value `sec-gemini/timeline` of the request property `messages/items/mime_type/anyOf[subschema #1: MimeType]/` - removed the enum value `source` of the request property `messages/items/message_type` - removed the enum value `undefined` of the request property `messages/items/state` - removed the enum value `undefined` of the request property `state` - the `create_time` request property type changed from `number` to `integer` - the `update_time` request property type changed from `number` to `integer` - removed the request property `files/items/content_type_label` - removed the request property `files/items/sha256` - removed the request property `files/items/size` - removed the request property `messages/items/created_at` - removed the request property `messages/items/icon` - removed the request property `messages/items/text_color` - removed the request property `messages/items/title` - removed the request property `model/description` - removed the request property `model/model_name` - removed the request property `model/toolsets` - removed the request property `model/use_experimental` - removed the request property `usage/cached_token_count` - removed the request property `usage/prompt_tokens_details` - removed the request property `usage/thoughts_token_count` - removed the request property `usage/tool_use_prompt_token_count` - added the new optional request property `messages/items/message_sub_type` - added the new optional request property `model/is_experimental` - added the new optional request property `model/subagents` - added `#/components/schemas/Usage` to the `messages/items/usage` request property `anyOf` list - …12 more --- [Operation](https://skmtc.dev/google/apis/sec-gemini/docs/v1/session/delete/post.md) - [API](https://skmtc.dev/google/apis/sec-gemini.md) - [Page](https://skmtc.dev/google/apis/sec-gemini/changes/v1/session/delete/post)