--- title: "Changes to Get a single topic" method: GET path: "/t/{id}.json" --- # Changes to Get a single topic `GET /t/{id}.json` > Every recorded change to this operation, newest first. ## Timeline Changed in 6 of 52 revisions. - **2026-04-03** `bfe6030ff809`: 1 info - **2026-02-15** `a0c433b1f857`: 2 breaking, 6 info - **2024-08-13** `7153cdbbf109`: 2 breaking - **2024-01-27** `2df0ac845943`: 1 breaking - **2023-08-11** `7b91dc8ad5ad`: 3 info - **2022-03-05** `e1108b0434c0`: 39 breaking, 3 warning, 71 info ## Changes - **2026-04-03** `bfe6030ff809`: 1 info - added the optional property `details/can_banner_topic` to the response with the `200` status - **2026-02-15** `a0c433b1f857`: 2 breaking, 6 info - the `suggested_topics/items/tags/items/` response's property type changed from no type to `object` for status `200` - the `tags/items/` response's property type changed from no type to `object` for status `200` - added the required property `suggested_topics/items/tags/items/id` to the response with the `200` status - added the required property `suggested_topics/items/tags/items/name` to the response with the `200` status - added the required property `suggested_topics/items/tags/items/slug` to the response with the `200` status - added the required property `tags/items/id` to the response with the `200` status - added the required property `tags/items/name` to the response with the `200` status - added the required property `tags/items/slug` to the response with the `200` status - **2024-08-13** `7153cdbbf109`: 2 breaking - the `details/participants/items/flair_group_id` response's property type changed from `string, null` to `integer, null` for status `200` - removed the required property `summarizable` from the response with the `200` status - **2024-01-27** `2df0ac845943`: 1 breaking - the `post_stream/posts/items/score` response's property type changed from `integer` to `number` for status `200` - **2023-08-11** `7b91dc8ad5ad`: 3 info - added the optional property `details/participants/items/flair_group_id` to the response with the `200` status - added the optional property `post_stream/posts/items/can_see_hidden_post` to the response with the `200` status - added the required property `summarizable` to the response with the `200` status - **2022-03-05** `e1108b0434c0`: 39 breaking, 3 warning, 71 info - added the new required `header` request parameter `Api-Key` - added the new required `header` request parameter `Api-Username` - the response's body type changed from `object` to no type for status `200` - the response property `deleted_at` became nullable for the status `200` - the response property `deleted_by` became nullable for the status `200` - the response property `draft` became nullable for the status `200` - the response property `highest_post_number` became nullable for the status `200` - the response property `last_posted_at` became nullable for the status `200` - the response property `pinned_at` became nullable for the status `200` - the response property `pinned_until` became nullable for the status `200` - the response property `unpinned` became nullable for the status `200` - the response property `word_count` became nullable for the status `200` - the response property `details/can_flag_topic` became optional for the status `200` - the response property `details/participants` became optional for the status `200` - the `actions_summary` response property's minItems was decreased from `1` to `0` for the response status `200` - the `details/participants` response property's minItems was decreased from `1` to `0` for the response status `200` - the `archetype` response property's minLength was decreased from `1` to `0` for the response status `200` - the `created_at` response property's minLength was decreased from `1` to `0` for the response status `200` - the `details/created_by/avatar_template` response property's minLength was decreased from `1` to `0` for the response status `200` - the `details/created_by/username` response property's minLength was decreased from `1` to `0` for the response status `200` - the `details/last_poster/avatar_template` response property's minLength was decreased from `1` to `0` for the response status `200` - the `details/last_poster/username` response property's minLength was decreased from `1` to `0` for the response status `200` - the `draft_key` response property's minLength was decreased from `1` to `0` for the response status `200` - the `fancy_title` response property's minLength was decreased from `1` to `0` for the response status `200` - the `pinned_at` response property's minLength was decreased from `1` to `0` for the response status `200` - the `slug` response property's minLength was decreased from `1` to `0` for the response status `200` - the `title` response property's minLength was decreased from `1` to `0` for the response status `200` - the `bookmarked` response's property type changed from `object` to `boolean` for status `200` - the `deleted_at` response's property type changed from `object` to `string, null` for status `200` - the `deleted_by` response's property type changed from `object` to `string, null` for status `200` - the `draft` response's property type changed from `object` to `string, null` for status `200` - the `draft_sequence` response's property type changed from `object` to `integer` for status `200` - the `highest_post_number` response's property type changed from `number` to `integer, null` for status `200` - the `last_posted_at` response's property type changed from `object` to `string, null` for status `200` - the `pinned_until` response's property type changed from `object` to `string, null` for status `200` - the `unpinned` response's property type changed from `object` to `string, null` for status `200` - the `word_count` response's property type changed from `object` to `integer, null` for status `200` - removed the required property `details/auto_close_based_on_last_post` from the response with the `200` status - removed the required property `details/suggested_topics` from the response with the `200` status - deleted the `query` request parameter `print` - …73 more --- [Operation](https://skmtc.dev/discourse/apis/discourse-api-documentation/docs/t/:id.json/get.md) - [API](https://skmtc.dev/discourse/apis/discourse-api-documentation.md) - [Page](https://skmtc.dev/discourse/apis/discourse-api-documentation/changes/t/:id.json/get)