---
title: "Changes to Create a session"
method: POST
path: "/v1/sessions"
---

# Changes to Create a session

`POST /v1/sessions`

> Every recorded change to this operation, newest first.

## Timeline

Changed in 32 of 55 revisions.

- **2026-10-16** `8f7e74e04bd3`: 18 info
- **2026-06-23** `2248d956188a`: 1 info
- **2026-06-23** `b1ff6331cd62`: 1 info
- **2026-06-22** `e702ac40b45f`: 1 info
- **2026-06-22** `416b04cf01b1`: 1 info
- **2026-06-22** `e702ac40b45f`: 1 info
- **2026-06-18** `416b04cf01b1`: 1 info
- **2026-06-16** `7b73b0d57792`: 1 breaking
- **2026-06-09** `fb8f96604336`: 1 info
- **2026-06-07** `4985d7bcd32f`: 11 info
- **2026-05-22** `39bc3eb693fb`: 6 warning
- **2026-05-18** `4903de8a2ac2`: 8 warning, 6 info
- **2026-05-12** `fe8727016404`: 2 info
- **2026-03-16** `f51ce05f6128`: 1 info
- **2026-02-06** `45efcdf3e5cc`: 2 info
- **2026-01-08** `97dcad9b050e`: 6 breaking, 8 warning, 7 info
- **2025-12-05** `aa04a4c92f70`: 2 info
- **2025-11-29** `a7c3e89bea1f`: 1 breaking, 1128 info
- **2025-11-29** `44bb43c1df50`: 1128 breaking
- **2025-11-05** `5f9188a1c038`: 1 warning
- **2025-10-21** `fd51b9b25e1d`: 1 breaking, 1 warning, 2 info
- **2025-10-16** `498986007f26`: 1 warning, 1 info
- **2025-10-16** `64c9e6b1b57d`: 2 info
- **2025-10-14** `4b21cd78870a`: 2 info
- **2025-10-13** `a4d7cab569c6`: 4 info
- **2025-10-07** `9f3355d65c6c`: 7 breaking, 4 info
- **2025-08-21** `094cfe5a2443`: 1 info
- **2025-08-11** `15ffd3fc04f3`: 1 info
- **2025-07-02** `efa19cc3cc7e`: 1 breaking, 2 warning, 1130 info
- **2025-06-30** `66afe0a18217`: 1 breaking, 1 warning, 4 info
- **2025-05-28** `7fca3009423f`: 2 info
- **2025-05-26** `c30148e5d3a9`: 2 info

## Changes

- **2026-10-16** `8f7e74e04bd3`: 18 info
  - added the new optional request property `credentials/credentialProvider`
  - added the new optional request property `credentials/origins`
  - added the new optional request property `recording`
  - removed the `ap-northeast` enum value from the `region` response property for the response status `201`
  - removed the `ap-southeast` enum value from the `region` response property for the response status `201`
  - removed the `eu-central` enum value from the `region` response property for the response status `201`
  - removed the `eu-west` enum value from the `region` response property for the response status `201`
  - removed the `fra` enum value from the `region` response property for the response status `201`
  - removed the `iad` enum value from the `region` response property for the response status `201`
  - removed the `lax` enum value from the `region` response property for the response status `201`
  - removed the `nrt` enum value from the `region` response property for the response status `201`
  - removed the `ord` enum value from the `region` response property for the response status `201`
  - removed the `sa-east` enum value from the `region` response property for the response status `201`
  - removed the `scl` enum value from the `region` response property for the response status `201`
  - removed the `us-central` enum value from the `region` response property for the response status `201`
  - removed the `us-east` enum value from the `region` response property for the response status `201`
  - removed the `us-west` enum value from the `region` response property for the response status `201`
  - added the required property `browserMode` to the response with the `201` status
- **2026-06-23** `2248d956188a`: 1 info
  - request body became optional
- **2026-06-23** `b1ff6331cd62`: 1 info
  - added `subschema #3` to the `useProxy/anyOf[subschema #1]/anyOf[subschema #2]/` request property `anyOf` list
- **2026-06-22** `e702ac40b45f`: 1 info
  - added the non-success response with the status `403`
- **2026-06-22** `416b04cf01b1`: 1 info
  - removed the non-success response with the status `403`
- **2026-06-22** `e702ac40b45f`: 1 info
  - added the non-success response with the status `403`
- **2026-06-18** `416b04cf01b1`: 1 info
  - added the optional property `releaseReason` to the response with the `201` status
- **2026-06-16** `7b73b0d57792`: 1 breaking
  - request body became required
- **2026-06-09** `fb8f96604336`: 1 info
  - added the new optional request property `caCertificates`
- **2026-06-07** `4985d7bcd32f`: 11 info
  - added the new optional request property `inactivityTimeout`
  - added the new optional request property `projectId`
  - added the non-success response with the status `409`
  - added the non-success response with the status `422`
  - added the non-success response with the status `503`
  - added the non-success response with the status `504`
  - added the optional property `inactivityTimeout` to the response with the `201` status
  - added the optional property `linkToDocs` to the response with the `400` status
  - added the optional property `linkToDocs` to the response with the `429` status
  - added the optional property `linkToDocs` to the response with the `500` status
  - added the optional property `projectId` to the response with the `201` status
- **2026-05-22** `39bc3eb693fb`: 6 warning
  - added the new `fra` enum value to the `region` response property for the response status `201`
  - added the new `iad` enum value to the `region` response property for the response status `201`
  - added the new `lax` enum value to the `region` response property for the response status `201`
  - added the new `nrt` enum value to the `region` response property for the response status `201`
  - added the new `ord` enum value to the `region` response property for the response status `201`
  - added the new `scl` enum value to the `region` response property for the response status `201`
- **2026-05-18** `4903de8a2ac2`: 8 warning, 6 info
  - added the new `ap-northeast` enum value to the `region` response property for the response status `201`
  - added the new `ap-southeast` enum value to the `region` response property for the response status `201`
  - added the new `eu-central` enum value to the `region` response property for the response status `201`
  - added the new `eu-west` enum value to the `region` response property for the response status `201`
  - added the new `sa-east` enum value to the `region` response property for the response status `201`
  - added the new `us-central` enum value to the `region` response property for the response status `201`
  - added the new `us-east` enum value to the `region` response property for the response status `201`
  - added the new `us-west` enum value to the `region` response property for the response status `201`
  - removed the `fra` enum value from the `region` response property for the response status `201`
  - removed the `iad` enum value from the `region` response property for the response status `201`
  - removed the `lax` enum value from the `region` response property for the response status `201`
  - removed the `nrt` enum value from the `region` response property for the response status `201`
  - removed the `ord` enum value from the `region` response property for the response status `201`
  - removed the `scl` enum value from the `region` response property for the response status `201`
- **2026-05-12** `fe8727016404`: 2 info
  - added the new optional request property `fullscreen`
  - added the optional property `fullscreen` to the response with the `201` status
- **2026-03-16** `f51ce05f6128`: 1 info
  - added the new optional request property `experimentalFeatures`
- **2026-02-06** `45efcdf3e5cc`: 2 info
  - added the new optional request property `stealthConfig/autoCaptchaSolving`
  - added the optional property `stealthConfig/autoCaptchaSolving` to the response with the `201` status
- **2026-01-08** `97dcad9b050e`: 6 breaking, 8 warning, 7 info
  - removed `subschema #1, subschema #2` from the `useProxy/anyOf[subschema #1]/` request property `anyOf` list
  - the request property `sessionContext/indexedDB/additionalProperties/items/data/items/records/items/key` became required
  - the request property `sessionContext/indexedDB/additionalProperties/items/data/items/records/items/value` became required
  - added the pattern `^([0-9a-fA-F]{8}-[0-9a-fA-F]{4}-[1-8][0-9a-fA-F]{3}-[89abAB][0-9a-fA-F]{3}-[0-9a-fA-F]{12}|00000000-0000-0000-0000-000000000000|ffffffff-ffff-ffff-ffff-ffffffffffff)$` to the request property `profileId`
  - added the pattern `^([0-9a-fA-F]{8}-[0-9a-fA-F]{4}-[1-8][0-9a-fA-F]{3}-[89abAB][0-9a-fA-F]{3}-[0-9a-fA-F]{12}|00000000-0000-0000-0000-000000000000|ffffffff-ffff-ffff-ffff-ffffffffffff)$` to the request property `sessionId`
  - the `region` request property type changed from `string` to no type
  - the `concurrency` request property's max was set to `9007199254740991.00`
  - the `dimensions/height` request property's max was set to `9007199254740991.00`
  - the `dimensions/width` request property's max was set to `9007199254740991.00`
  - the `timeout` request property's max was set to `9007199254740991.00`
  - the `concurrency` request property's min was set to `-9007199254740991.00`
  - the `dimensions/height` request property's min was set to `-9007199254740991.00`
  - the `dimensions/width` request property's min was set to `-9007199254740991.00`
  - the `timeout` request property's min was set to `-9007199254740991.00`
  - added `subschema #1, subschema #2` to the `useProxy/anyOf[subschema #1]/` request property `anyOf` list
  - the response property `context/items/params` became required for the status `400`
  - the response property `context/items/params` became required for the status `429`
  - the response property `context/items/params` became required for the status `500`
  - the `createdAt` response's property pattern `^(?:(?:\d\d[2468][048]|\d\d[13579][26]|\d\d0[48]|[02468][048]00|[13579][26]00)-02-29|\d{4}-(?:(?:0[13578]|1[02])-(?:0[1-9]|[12]\d|3[01])|(?:0[469]|11)-(?:0[1-9]|[12]\d|30)|(?:02)-(?:0[1-9]|1\d|2[0-8])))T(?:(?:[01]\d|2[0-3]):[0-5]\d(?::[0-5]\d(?:\.\d+)?)?(?:Z))$` was added for the status `201`
  - the `id` response's property pattern `^([0-9a-fA-F]{8}-[0-9a-fA-F]{4}-[1-8][0-9a-fA-F]{3}-[89abAB][0-9a-fA-F]{3}-[0-9a-fA-F]{12}|00000000-0000-0000-0000-000000000000|ffffffff-ffff-ffff-ffff-ffffffffffff)$` was added for the status `201`
  - the `profileId` response's property pattern `^([0-9a-fA-F]{8}-[0-9a-fA-F]{4}-[1-8][0-9a-fA-F]{3}-[89abAB][0-9a-fA-F]{3}-[0-9a-fA-F]{12}|00000000-0000-0000-0000-000000000000|ffffffff-ffff-ffff-ffff-ffffffffffff)$` was added for the status `201`
- **2025-12-05** `aa04a4c92f70`: 2 info
  - added the new optional request property `debugConfig`
  - added the optional property `debugConfig` to the response with the `201` status
- **2025-11-29** `a7c3e89bea1f`: 1 breaking, 1128 info
  - request property `useProxy/anyOf[subschema #1]/anyOf[subschema #2]/anyOf[subschema #2]/anyOf[subschema #1]/geolocation/city` was restricted to a list of enum values
  - added the new `ABIDJAN` enum value to the request property `useProxy/anyOf[subschema #1]/anyOf[subschema #2]/anyOf[subschema #2]/anyOf[subschema #1]/geolocation/city`
  - added the new `ABUJA` enum value to the request property `useProxy/anyOf[subschema #1]/anyOf[subschema #2]/anyOf[subschema #2]/anyOf[subschema #1]/geolocation/city`
  - added the new `ABU_DHABI` enum value to the request property `useProxy/anyOf[subschema #1]/anyOf[subschema #2]/anyOf[subschema #2]/anyOf[subschema #1]/geolocation/city`
  - added the new `ACAPULCO_DE JUAREZ` enum value to the request property `useProxy/anyOf[subschema #1]/anyOf[subschema #2]/anyOf[subschema #2]/anyOf[subschema #1]/geolocation/city`
  - added the new `ACCRA` enum value to the request property `useProxy/anyOf[subschema #1]/anyOf[subschema #2]/anyOf[subschema #2]/anyOf[subschema #1]/geolocation/city`
  - added the new `ADANA` enum value to the request property `useProxy/anyOf[subschema #1]/anyOf[subschema #2]/anyOf[subschema #2]/anyOf[subschema #1]/geolocation/city`
  - added the new `ADAPAZARI` enum value to the request property `useProxy/anyOf[subschema #1]/anyOf[subschema #2]/anyOf[subschema #2]/anyOf[subschema #1]/geolocation/city`
  - added the new `ADDIS_ABABA` enum value to the request property `useProxy/anyOf[subschema #1]/anyOf[subschema #2]/anyOf[subschema #2]/anyOf[subschema #1]/geolocation/city`
  - added the new `ADELAIDE` enum value to the request property `useProxy/anyOf[subschema #1]/anyOf[subschema #2]/anyOf[subschema #2]/anyOf[subschema #1]/geolocation/city`
  - added the new `AFYONKARAHISAR` enum value to the request property `useProxy/anyOf[subschema #1]/anyOf[subschema #2]/anyOf[subschema #2]/anyOf[subschema #1]/geolocation/city`
  - added the new `AGADIR` enum value to the request property `useProxy/anyOf[subschema #1]/anyOf[subschema #2]/anyOf[subschema #2]/anyOf[subschema #1]/geolocation/city`
  - added the new `AGUASCALIENTES` enum value to the request property `useProxy/anyOf[subschema #1]/anyOf[subschema #2]/anyOf[subschema #2]/anyOf[subschema #1]/geolocation/city`
  - added the new `AGUAS_LINDAS DE GOIAS` enum value to the request property `useProxy/anyOf[subschema #1]/anyOf[subschema #2]/anyOf[subschema #2]/anyOf[subschema #1]/geolocation/city`
  - added the new `AHMEDABAD` enum value to the request property `useProxy/anyOf[subschema #1]/anyOf[subschema #2]/anyOf[subschema #2]/anyOf[subschema #1]/geolocation/city`
  - added the new `AIZAWL` enum value to the request property `useProxy/anyOf[subschema #1]/anyOf[subschema #2]/anyOf[subschema #2]/anyOf[subschema #1]/geolocation/city`
  - added the new `AJMAN` enum value to the request property `useProxy/anyOf[subschema #1]/anyOf[subschema #2]/anyOf[subschema #2]/anyOf[subschema #1]/geolocation/city`
  - added the new `AKRON` enum value to the request property `useProxy/anyOf[subschema #1]/anyOf[subschema #2]/anyOf[subschema #2]/anyOf[subschema #1]/geolocation/city`
  - added the new `AKSARAY` enum value to the request property `useProxy/anyOf[subschema #1]/anyOf[subschema #2]/anyOf[subschema #2]/anyOf[subschema #1]/geolocation/city`
  - added the new `ALAJUELA` enum value to the request property `useProxy/anyOf[subschema #1]/anyOf[subschema #2]/anyOf[subschema #2]/anyOf[subschema #1]/geolocation/city`
  - added the new `ALBANY` enum value to the request property `useProxy/anyOf[subschema #1]/anyOf[subschema #2]/anyOf[subschema #2]/anyOf[subschema #1]/geolocation/city`
  - added the new `ALBUQUERQUE` enum value to the request property `useProxy/anyOf[subschema #1]/anyOf[subschema #2]/anyOf[subschema #2]/anyOf[subschema #1]/geolocation/city`
  - added the new `ALEXANDRIA` enum value to the request property `useProxy/anyOf[subschema #1]/anyOf[subschema #2]/anyOf[subschema #2]/anyOf[subschema #1]/geolocation/city`
  - added the new `ALGIERS` enum value to the request property `useProxy/anyOf[subschema #1]/anyOf[subschema #2]/anyOf[subschema #2]/anyOf[subschema #1]/geolocation/city`
  - added the new `ALICANTE` enum value to the request property `useProxy/anyOf[subschema #1]/anyOf[subschema #2]/anyOf[subschema #2]/anyOf[subschema #1]/geolocation/city`
  - added the new `ALMADA` enum value to the request property `useProxy/anyOf[subschema #1]/anyOf[subschema #2]/anyOf[subschema #2]/anyOf[subschema #1]/geolocation/city`
  - added the new `ALMATY` enum value to the request property `useProxy/anyOf[subschema #1]/anyOf[subschema #2]/anyOf[subschema #2]/anyOf[subschema #1]/geolocation/city`
  - added the new `ALMERE_STAD` enum value to the request property `useProxy/anyOf[subschema #1]/anyOf[subschema #2]/anyOf[subschema #2]/anyOf[subschema #1]/geolocation/city`
  - added the new `ALVORADA` enum value to the request property `useProxy/anyOf[subschema #1]/anyOf[subschema #2]/anyOf[subschema #2]/anyOf[subschema #1]/geolocation/city`
  - added the new `AL_AIN CITY` enum value to the request property `useProxy/anyOf[subschema #1]/anyOf[subschema #2]/anyOf[subschema #2]/anyOf[subschema #1]/geolocation/city`
  - added the new `AL_MANSURAH` enum value to the request property `useProxy/anyOf[subschema #1]/anyOf[subschema #2]/anyOf[subschema #2]/anyOf[subschema #1]/geolocation/city`
  - added the new `AL_QATIF` enum value to the request property `useProxy/anyOf[subschema #1]/anyOf[subschema #2]/anyOf[subschema #2]/anyOf[subschema #1]/geolocation/city`
  - added the new `AMADORA` enum value to the request property `useProxy/anyOf[subschema #1]/anyOf[subschema #2]/anyOf[subschema #2]/anyOf[subschema #1]/geolocation/city`
  - added the new `AMASYA` enum value to the request property `useProxy/anyOf[subschema #1]/anyOf[subschema #2]/anyOf[subschema #2]/anyOf[subschema #1]/geolocation/city`
  - added the new `AMBATO` enum value to the request property `useProxy/anyOf[subschema #1]/anyOf[subschema #2]/anyOf[subschema #2]/anyOf[subschema #1]/geolocation/city`
  - added the new `AMERICANA` enum value to the request property `useProxy/anyOf[subschema #1]/anyOf[subschema #2]/anyOf[subschema #2]/anyOf[subschema #1]/geolocation/city`
  - added the new `AMMAN` enum value to the request property `useProxy/anyOf[subschema #1]/anyOf[subschema #2]/anyOf[subschema #2]/anyOf[subschema #1]/geolocation/city`
  - added the new `AMSTERDAM` enum value to the request property `useProxy/anyOf[subschema #1]/anyOf[subschema #2]/anyOf[subschema #2]/anyOf[subschema #1]/geolocation/city`
  - added the new `ANANINDEUA` enum value to the request property `useProxy/anyOf[subschema #1]/anyOf[subschema #2]/anyOf[subschema #2]/anyOf[subschema #1]/geolocation/city`
  - added the new `ANAPOLIS` enum value to the request property `useProxy/anyOf[subschema #1]/anyOf[subschema #2]/anyOf[subschema #2]/anyOf[subschema #1]/geolocation/city`
  - …1089 more
- **2025-11-29** `44bb43c1df50`: 1128 breaking
  - removed the enum value `ABIDJAN` of the request property `useProxy/anyOf[subschema #1]/anyOf[subschema #2]/anyOf[subschema #2]/anyOf[subschema #1]/geolocation/city`
  - removed the enum value `ABUJA` of the request property `useProxy/anyOf[subschema #1]/anyOf[subschema #2]/anyOf[subschema #2]/anyOf[subschema #1]/geolocation/city`
  - removed the enum value `ABU_DHABI` of the request property `useProxy/anyOf[subschema #1]/anyOf[subschema #2]/anyOf[subschema #2]/anyOf[subschema #1]/geolocation/city`
  - removed the enum value `ACAPULCO_DE JUAREZ` of the request property `useProxy/anyOf[subschema #1]/anyOf[subschema #2]/anyOf[subschema #2]/anyOf[subschema #1]/geolocation/city`
  - removed the enum value `ACCRA` of the request property `useProxy/anyOf[subschema #1]/anyOf[subschema #2]/anyOf[subschema #2]/anyOf[subschema #1]/geolocation/city`
  - removed the enum value `ADANA` of the request property `useProxy/anyOf[subschema #1]/anyOf[subschema #2]/anyOf[subschema #2]/anyOf[subschema #1]/geolocation/city`
  - removed the enum value `ADAPAZARI` of the request property `useProxy/anyOf[subschema #1]/anyOf[subschema #2]/anyOf[subschema #2]/anyOf[subschema #1]/geolocation/city`
  - removed the enum value `ADDIS_ABABA` of the request property `useProxy/anyOf[subschema #1]/anyOf[subschema #2]/anyOf[subschema #2]/anyOf[subschema #1]/geolocation/city`
  - removed the enum value `ADELAIDE` of the request property `useProxy/anyOf[subschema #1]/anyOf[subschema #2]/anyOf[subschema #2]/anyOf[subschema #1]/geolocation/city`
  - removed the enum value `AFYONKARAHISAR` of the request property `useProxy/anyOf[subschema #1]/anyOf[subschema #2]/anyOf[subschema #2]/anyOf[subschema #1]/geolocation/city`
  - removed the enum value `AGADIR` of the request property `useProxy/anyOf[subschema #1]/anyOf[subschema #2]/anyOf[subschema #2]/anyOf[subschema #1]/geolocation/city`
  - removed the enum value `AGUASCALIENTES` of the request property `useProxy/anyOf[subschema #1]/anyOf[subschema #2]/anyOf[subschema #2]/anyOf[subschema #1]/geolocation/city`
  - removed the enum value `AGUAS_LINDAS DE GOIAS` of the request property `useProxy/anyOf[subschema #1]/anyOf[subschema #2]/anyOf[subschema #2]/anyOf[subschema #1]/geolocation/city`
  - removed the enum value `AHMEDABAD` of the request property `useProxy/anyOf[subschema #1]/anyOf[subschema #2]/anyOf[subschema #2]/anyOf[subschema #1]/geolocation/city`
  - removed the enum value `AIZAWL` of the request property `useProxy/anyOf[subschema #1]/anyOf[subschema #2]/anyOf[subschema #2]/anyOf[subschema #1]/geolocation/city`
  - removed the enum value `AJMAN` of the request property `useProxy/anyOf[subschema #1]/anyOf[subschema #2]/anyOf[subschema #2]/anyOf[subschema #1]/geolocation/city`
  - removed the enum value `AKRON` of the request property `useProxy/anyOf[subschema #1]/anyOf[subschema #2]/anyOf[subschema #2]/anyOf[subschema #1]/geolocation/city`
  - removed the enum value `AKSARAY` of the request property `useProxy/anyOf[subschema #1]/anyOf[subschema #2]/anyOf[subschema #2]/anyOf[subschema #1]/geolocation/city`
  - removed the enum value `ALAJUELA` of the request property `useProxy/anyOf[subschema #1]/anyOf[subschema #2]/anyOf[subschema #2]/anyOf[subschema #1]/geolocation/city`
  - removed the enum value `ALBANY` of the request property `useProxy/anyOf[subschema #1]/anyOf[subschema #2]/anyOf[subschema #2]/anyOf[subschema #1]/geolocation/city`
  - removed the enum value `ALBUQUERQUE` of the request property `useProxy/anyOf[subschema #1]/anyOf[subschema #2]/anyOf[subschema #2]/anyOf[subschema #1]/geolocation/city`
  - removed the enum value `ALEXANDRIA` of the request property `useProxy/anyOf[subschema #1]/anyOf[subschema #2]/anyOf[subschema #2]/anyOf[subschema #1]/geolocation/city`
  - removed the enum value `ALGIERS` of the request property `useProxy/anyOf[subschema #1]/anyOf[subschema #2]/anyOf[subschema #2]/anyOf[subschema #1]/geolocation/city`
  - removed the enum value `ALICANTE` of the request property `useProxy/anyOf[subschema #1]/anyOf[subschema #2]/anyOf[subschema #2]/anyOf[subschema #1]/geolocation/city`
  - removed the enum value `ALMADA` of the request property `useProxy/anyOf[subschema #1]/anyOf[subschema #2]/anyOf[subschema #2]/anyOf[subschema #1]/geolocation/city`
  - removed the enum value `ALMATY` of the request property `useProxy/anyOf[subschema #1]/anyOf[subschema #2]/anyOf[subschema #2]/anyOf[subschema #1]/geolocation/city`
  - removed the enum value `ALMERE_STAD` of the request property `useProxy/anyOf[subschema #1]/anyOf[subschema #2]/anyOf[subschema #2]/anyOf[subschema #1]/geolocation/city`
  - removed the enum value `ALVORADA` of the request property `useProxy/anyOf[subschema #1]/anyOf[subschema #2]/anyOf[subschema #2]/anyOf[subschema #1]/geolocation/city`
  - removed the enum value `AL_AIN CITY` of the request property `useProxy/anyOf[subschema #1]/anyOf[subschema #2]/anyOf[subschema #2]/anyOf[subschema #1]/geolocation/city`
  - removed the enum value `AL_MANSURAH` of the request property `useProxy/anyOf[subschema #1]/anyOf[subschema #2]/anyOf[subschema #2]/anyOf[subschema #1]/geolocation/city`
  - removed the enum value `AL_QATIF` of the request property `useProxy/anyOf[subschema #1]/anyOf[subschema #2]/anyOf[subschema #2]/anyOf[subschema #1]/geolocation/city`
  - removed the enum value `AMADORA` of the request property `useProxy/anyOf[subschema #1]/anyOf[subschema #2]/anyOf[subschema #2]/anyOf[subschema #1]/geolocation/city`
  - removed the enum value `AMASYA` of the request property `useProxy/anyOf[subschema #1]/anyOf[subschema #2]/anyOf[subschema #2]/anyOf[subschema #1]/geolocation/city`
  - removed the enum value `AMBATO` of the request property `useProxy/anyOf[subschema #1]/anyOf[subschema #2]/anyOf[subschema #2]/anyOf[subschema #1]/geolocation/city`
  - removed the enum value `AMERICANA` of the request property `useProxy/anyOf[subschema #1]/anyOf[subschema #2]/anyOf[subschema #2]/anyOf[subschema #1]/geolocation/city`
  - removed the enum value `AMMAN` of the request property `useProxy/anyOf[subschema #1]/anyOf[subschema #2]/anyOf[subschema #2]/anyOf[subschema #1]/geolocation/city`
  - removed the enum value `AMSTERDAM` of the request property `useProxy/anyOf[subschema #1]/anyOf[subschema #2]/anyOf[subschema #2]/anyOf[subschema #1]/geolocation/city`
  - removed the enum value `ANANINDEUA` of the request property `useProxy/anyOf[subschema #1]/anyOf[subschema #2]/anyOf[subschema #2]/anyOf[subschema #1]/geolocation/city`
  - removed the enum value `ANAPOLIS` of the request property `useProxy/anyOf[subschema #1]/anyOf[subschema #2]/anyOf[subschema #2]/anyOf[subschema #1]/geolocation/city`
  - removed the enum value `ANGELES_CITY` of the request property `useProxy/anyOf[subschema #1]/anyOf[subschema #2]/anyOf[subschema #2]/anyOf[subschema #1]/geolocation/city`
  - …1088 more
- **2025-11-05** `5f9188a1c038`: 1 warning
  - removed the optional property `source` from the response with the `201` status
- **2025-10-21** `fd51b9b25e1d`: 1 breaking, 1 warning, 2 info
  - the response property `headless` became optional for the status `201`
  - added the new `nrt` enum value to the `region` response property for the response status `201`
  - added the optional property `source` to the response with the `201` status
  - the `headless` response's property default value `false` was added for the status `201`
- **2025-10-16** `498986007f26`: 1 warning, 1 info
  - removed the request property `isHeadful`
  - added the new optional request property `headless`
- **2025-10-16** `64c9e6b1b57d`: 2 info
  - added the new optional request property `isHeadful`
  - added the required property `headless` to the response with the `201` status
- **2025-10-14** `4b21cd78870a`: 2 info
  - added the new optional request property `deviceConfig`
  - added the optional property `deviceConfig` to the response with the `201` status
- **2025-10-13** `a4d7cab569c6`: 4 info
  - added the new optional request property `persistProfile`
  - added the new optional request property `profileId`
  - added the optional property `persistProfile` to the response with the `201` status
  - added the optional property `profileId` to the response with the `201` status
- **2025-10-07** `9f3355d65c6c`: 7 breaking, 4 info
  - removed the enum value `bom` of the request property `region`
  - removed the enum value `fra` of the request property `region`
  - removed the enum value `hkg` of the request property `region`
  - removed the enum value `iad` of the request property `region`
  - removed the enum value `lax` of the request property `region`
  - removed the enum value `ord` of the request property `region`
  - removed the enum value `scl` of the request property `region`
  - added the new optional request property `optimizeBandwidth`
  - removed the `bom` enum value from the `region` response property for the response status `201`
  - removed the `hkg` enum value from the `region` response property for the response status `201`
  - added the required property `optimizeBandwidth` to the response with the `201` status
- **2025-08-21** `094cfe5a2443`: 1 info
  - added the new optional request property `extensionIds`
- **2025-08-11** `15ffd3fc04f3`: 1 info
  - added the non-success response with the status `429`
- **2025-07-02** `efa19cc3cc7e`: 1 breaking, 2 warning, 1130 info
  - request property `useProxy/anyOf[subschema #1]/anyOf[subschema #2]/anyOf[subschema #2]/anyOf[subschema #1]/geolocation/city` was restricted to a list of enum values
  - removed the request property `advancedStealth`
  - removed the optional property `advancedStealth` from the response with the `201` status
  - added the new optional request property `stealthConfig`
  - added the new `ABIDJAN` enum value to the request property `useProxy/anyOf[subschema #1]/anyOf[subschema #2]/anyOf[subschema #2]/anyOf[subschema #1]/geolocation/city`
  - added the new `ABUJA` enum value to the request property `useProxy/anyOf[subschema #1]/anyOf[subschema #2]/anyOf[subschema #2]/anyOf[subschema #1]/geolocation/city`
  - added the new `ABU_DHABI` enum value to the request property `useProxy/anyOf[subschema #1]/anyOf[subschema #2]/anyOf[subschema #2]/anyOf[subschema #1]/geolocation/city`
  - added the new `ACAPULCO_DE JUAREZ` enum value to the request property `useProxy/anyOf[subschema #1]/anyOf[subschema #2]/anyOf[subschema #2]/anyOf[subschema #1]/geolocation/city`
  - added the new `ACCRA` enum value to the request property `useProxy/anyOf[subschema #1]/anyOf[subschema #2]/anyOf[subschema #2]/anyOf[subschema #1]/geolocation/city`
  - added the new `ADANA` enum value to the request property `useProxy/anyOf[subschema #1]/anyOf[subschema #2]/anyOf[subschema #2]/anyOf[subschema #1]/geolocation/city`
  - added the new `ADAPAZARI` enum value to the request property `useProxy/anyOf[subschema #1]/anyOf[subschema #2]/anyOf[subschema #2]/anyOf[subschema #1]/geolocation/city`
  - added the new `ADDIS_ABABA` enum value to the request property `useProxy/anyOf[subschema #1]/anyOf[subschema #2]/anyOf[subschema #2]/anyOf[subschema #1]/geolocation/city`
  - added the new `ADELAIDE` enum value to the request property `useProxy/anyOf[subschema #1]/anyOf[subschema #2]/anyOf[subschema #2]/anyOf[subschema #1]/geolocation/city`
  - added the new `AFYONKARAHISAR` enum value to the request property `useProxy/anyOf[subschema #1]/anyOf[subschema #2]/anyOf[subschema #2]/anyOf[subschema #1]/geolocation/city`
  - added the new `AGADIR` enum value to the request property `useProxy/anyOf[subschema #1]/anyOf[subschema #2]/anyOf[subschema #2]/anyOf[subschema #1]/geolocation/city`
  - added the new `AGUASCALIENTES` enum value to the request property `useProxy/anyOf[subschema #1]/anyOf[subschema #2]/anyOf[subschema #2]/anyOf[subschema #1]/geolocation/city`
  - added the new `AGUAS_LINDAS DE GOIAS` enum value to the request property `useProxy/anyOf[subschema #1]/anyOf[subschema #2]/anyOf[subschema #2]/anyOf[subschema #1]/geolocation/city`
  - added the new `AHMEDABAD` enum value to the request property `useProxy/anyOf[subschema #1]/anyOf[subschema #2]/anyOf[subschema #2]/anyOf[subschema #1]/geolocation/city`
  - added the new `AIZAWL` enum value to the request property `useProxy/anyOf[subschema #1]/anyOf[subschema #2]/anyOf[subschema #2]/anyOf[subschema #1]/geolocation/city`
  - added the new `AJMAN` enum value to the request property `useProxy/anyOf[subschema #1]/anyOf[subschema #2]/anyOf[subschema #2]/anyOf[subschema #1]/geolocation/city`
  - added the new `AKRON` enum value to the request property `useProxy/anyOf[subschema #1]/anyOf[subschema #2]/anyOf[subschema #2]/anyOf[subschema #1]/geolocation/city`
  - added the new `AKSARAY` enum value to the request property `useProxy/anyOf[subschema #1]/anyOf[subschema #2]/anyOf[subschema #2]/anyOf[subschema #1]/geolocation/city`
  - added the new `ALAJUELA` enum value to the request property `useProxy/anyOf[subschema #1]/anyOf[subschema #2]/anyOf[subschema #2]/anyOf[subschema #1]/geolocation/city`
  - added the new `ALBANY` enum value to the request property `useProxy/anyOf[subschema #1]/anyOf[subschema #2]/anyOf[subschema #2]/anyOf[subschema #1]/geolocation/city`
  - added the new `ALBUQUERQUE` enum value to the request property `useProxy/anyOf[subschema #1]/anyOf[subschema #2]/anyOf[subschema #2]/anyOf[subschema #1]/geolocation/city`
  - added the new `ALEXANDRIA` enum value to the request property `useProxy/anyOf[subschema #1]/anyOf[subschema #2]/anyOf[subschema #2]/anyOf[subschema #1]/geolocation/city`
  - added the new `ALGIERS` enum value to the request property `useProxy/anyOf[subschema #1]/anyOf[subschema #2]/anyOf[subschema #2]/anyOf[subschema #1]/geolocation/city`
  - added the new `ALICANTE` enum value to the request property `useProxy/anyOf[subschema #1]/anyOf[subschema #2]/anyOf[subschema #2]/anyOf[subschema #1]/geolocation/city`
  - added the new `ALMADA` enum value to the request property `useProxy/anyOf[subschema #1]/anyOf[subschema #2]/anyOf[subschema #2]/anyOf[subschema #1]/geolocation/city`
  - added the new `ALMATY` enum value to the request property `useProxy/anyOf[subschema #1]/anyOf[subschema #2]/anyOf[subschema #2]/anyOf[subschema #1]/geolocation/city`
  - added the new `ALMERE_STAD` enum value to the request property `useProxy/anyOf[subschema #1]/anyOf[subschema #2]/anyOf[subschema #2]/anyOf[subschema #1]/geolocation/city`
  - added the new `ALVORADA` enum value to the request property `useProxy/anyOf[subschema #1]/anyOf[subschema #2]/anyOf[subschema #2]/anyOf[subschema #1]/geolocation/city`
  - added the new `AL_AIN CITY` enum value to the request property `useProxy/anyOf[subschema #1]/anyOf[subschema #2]/anyOf[subschema #2]/anyOf[subschema #1]/geolocation/city`
  - added the new `AL_MANSURAH` enum value to the request property `useProxy/anyOf[subschema #1]/anyOf[subschema #2]/anyOf[subschema #2]/anyOf[subschema #1]/geolocation/city`
  - added the new `AL_QATIF` enum value to the request property `useProxy/anyOf[subschema #1]/anyOf[subschema #2]/anyOf[subschema #2]/anyOf[subschema #1]/geolocation/city`
  - added the new `AMADORA` enum value to the request property `useProxy/anyOf[subschema #1]/anyOf[subschema #2]/anyOf[subschema #2]/anyOf[subschema #1]/geolocation/city`
  - added the new `AMASYA` enum value to the request property `useProxy/anyOf[subschema #1]/anyOf[subschema #2]/anyOf[subschema #2]/anyOf[subschema #1]/geolocation/city`
  - added the new `AMBATO` enum value to the request property `useProxy/anyOf[subschema #1]/anyOf[subschema #2]/anyOf[subschema #2]/anyOf[subschema #1]/geolocation/city`
  - added the new `AMERICANA` enum value to the request property `useProxy/anyOf[subschema #1]/anyOf[subschema #2]/anyOf[subschema #2]/anyOf[subschema #1]/geolocation/city`
  - added the new `AMMAN` enum value to the request property `useProxy/anyOf[subschema #1]/anyOf[subschema #2]/anyOf[subschema #2]/anyOf[subschema #1]/geolocation/city`
  - …1093 more
- **2025-06-30** `66afe0a18217`: 1 breaking, 1 warning, 4 info
  - the `useProxy` request property type changed from `boolean` to no type
  - removed the optional property `proxy` from the response with the `201` status
  - added the new optional request property `advancedStealth`
  - added `subschema #1, subschema #2` to the `useProxy` request property `anyOf` list
  - added the optional property `advancedStealth` to the response with the `201` status
  - added the required property `proxySource` to the response with the `201` status
- **2025-05-28** `7fca3009423f`: 2 info
  - added the new optional request property `region`
  - added the optional property `region` to the response with the `201` status
- **2025-05-26** `c30148e5d3a9`: 2 info
  - added the new optional request property `credentials`
  - added the new optional request property `namespace`

---

[Operation](https://skmtc.dev/steel-dev/apis/steel-api/docs/v1/sessions/post.md) - [API](https://skmtc.dev/steel-dev/apis/steel-api.md) - [Page](https://skmtc.dev/steel-dev/apis/steel-api/changes/v1/sessions/post)