---
title: "Changes to Upload new context and run automatic context matching"
method: POST
path: "/context-api/v2/projects/{projectId}/contexts/upload-and-match-async"
---

# Changes to Upload new context and run automatic context matching

`POST /context-api/v2/projects/{projectId}/contexts/upload-and-match-async`

> Every recorded change to this operation, newest first.

## Timeline

Changed in 2 of 10 revisions.

- **2026-10-17** `2cd7a8215799`: 13 breaking, 5 info
- **2026-08-06** `ae422098d9c5`: 1 breaking, 7 info

## Changes

- **2026-10-17** `2cd7a8215799`: 13 breaking, 5 info
  - added the pattern `^[a-z0-9]{9}$` to the `path` request parameter `projectId`
  - added `#/components/schemas/FileUri` to the `matchParams/contentFileUri` request property `allOf` list
  - added the pattern `^[a-f0-9]{32}$` to the request property `matchParams/stringHashcodes/items/`
  - added the pattern `^[a-z0-9]{12}$` to the request property `matchParams/translationJobUids/items/`
  - the response property `response/errors/items/details` became nullable for the status `400`
  - the response property `response/errors/items/details` became nullable for the status `401`
  - the response property `response/errors/items/details` became nullable for the status `429`
  - the response property `response/errors/items/details` became nullable for the status `500`
  - the response property `response/errors/items/key` became nullable for the status `400`
  - the response property `response/errors/items/key` became nullable for the status `401`
  - the response property `response/errors/items/key` became nullable for the status `429`
  - the response property `response/errors/items/key` became nullable for the status `500`
  - the `response/data/processUid` response's property type changed from `string` to no type, and format from `uuid` to no format for status `202`
  - for the `path` request parameter `projectId`, the format was generalized from `uuid` to no format
  - the `matchParams/contentFileUri` request property type was generalized from `string` to no type
  - the `matchParams/stringHashcodes/items/` request property format was generalized from `hash` to no format
  - the `matchParams/translationJobUids/items/` request property format was generalized from `hash` to no format
  - added `#/components/schemas/ProcessUid` to the `response/data/processUid` response property `allOf` list for the response status `202`
- **2026-08-06** `ae422098d9c5`: 1 breaking, 7 info
  - the `matchParams` request property type changed from `string` to `object`
  - added the new optional request property `matchParams/contentFileUri`
  - added the new optional request property `matchParams/overrideContextOlderThanDays`
  - added the new optional request property `matchParams/stringHashcodes`
  - added the new optional request property `matchParams/translationJobUids`
  - added the new optional request property `matchParams/videoMatchingMode`
  - added the optional property `response/data/processUid` to the response with the `202` status
  - response property `response/data/matchId` deprecated

---

[Operation](https://skmtc.dev/smartling/apis/smartling-rest-api-reference/docs/context-api/v2/projects/:projectId/contexts/upload-and-match-async/post.md) - [API](https://skmtc.dev/smartling/apis/smartling-rest-api-reference.md) - [Page](https://skmtc.dev/smartling/apis/smartling-rest-api-reference/changes/context-api/v2/projects/:projectId/contexts/upload-and-match-async/post)