---
title: "Changes to POST /EXPERIMENTAL_changes"
method: POST
path: "/EXPERIMENTAL_changes"
---

# Changes to POST /EXPERIMENTAL_changes

`POST /EXPERIMENTAL_changes`

> Every recorded change to this endpoint, newest first.

## Timeline

Changed in 4 of 9 revisions.

- **2026-08-10** `f586f4853138` — 1 breaking, 1 info
- **2026-05-21** `97b870f1f638` — 1 breaking, 1 info
- **2026-05-21** `e1982645f483` — 2 breaking, 2 info
- **2026-05-07** `28449cf3a488` — 1 breaking, 5 info

## Changes

- **2026-08-10** `f586f4853138` — 1 breaking, 1 info
  - added `subschema #1, subschema #3` to the `oneOf[subschema #1]/result/changes/items/` response property `oneOf` list for the response status `200`
  - removed `subschema #1, subschema #3` from the `oneOf[subschema #1]/result/changes/items/` response property `oneOf` list for the response status `200`
- **2026-05-21** `97b870f1f638` — 1 breaking, 1 info
  - added `subschema #1, subschema #2, subschema #3, subschema #4, subschema #5, subschema #6, subschema #7, subschema #8, subschema #9` to the `oneOf[subschema #1]/result/changes/items/` response property `oneOf` list for the response status `200`
  - removed `subschema #1, subschema #2, subschema #3, subschema #4, subschema #5, subschema #6, subschema #7, subschema #8, subschema #9` from the `oneOf[subschema #1]/result/changes/items/` response property `oneOf` list for the response status `200`
- **2026-05-21** `e1982645f483` — 2 breaking, 2 info
  - removed `#/components/schemas/RpcStateChangesInBlockByTypeRequest_variant0, #/components/schemas/RpcStateChangesInBlockByTypeRequest_variant1, #/components/schemas/RpcStateChangesInBlockByTypeRequest_variant2, #/components/schemas/RpcStateChangesInBlockByTypeRequest_variant3, #/components/schemas/RpcStateChangesInBlockByTypeRequest_variant4, #/components/schemas/RpcStateChangesInBlockByTypeRequest_variant5, #/components/schemas/RpcStateChangesInBlockByTypeRequest_variant6, #/components/schemas/RpcStateChangesInBlockByTypeRequest_variant7, #/components/schemas/RpcStateChangesInBlockByTypeRequest_variant8, #/components/schemas/RpcStateChangesInBlockByTypeRequest_variant9, #/components/schemas/RpcStateChangesInBlockByTypeRequest_variant10, #/components/schemas/RpcStateChangesInBlockByTypeRequest_variant11, #/components/schemas/RpcStateChangesInBlockByTypeRequest_variant12, #/components/schemas/RpcStateChangesInBlockByTypeRequest_variant13, #/components/schemas/RpcStateChangesInBlockByTypeRequest_variant14` from the `params` request property `oneOf` list
  - added `subschema #1, subschema #2` to the response body `oneOf` list for the response status `200`
  - added `subschema #1: account_changes_by_block_id, subschema #2: single_access_key_changes_by_block_id, subschema #3: all_access_key_changes_by_block_id, subschema #4: contract_code_changes_by_block_id, subschema #5: data_changes_by_block_id, subschema #6: account_changes_by_finality, subschema #7: single_access_key_changes_by_finality, subschema #8: all_access_key_changes_by_finality, subschema #9: contract_code_changes_by_finality, subschema #10: data_changes_by_finality, subschema #11: account_changes_by_sync_checkpoint, subschema #12: single_access_key_changes_by_sync_checkpoint, subschema #13: all_access_key_changes_by_sync_checkpoint, subschema #14: contract_code_changes_by_sync_checkpoint, subschema #15: data_changes_by_sync_checkpoint` to the `params` request property `oneOf` list
  - removed `#/components/schemas/JsonRpcResponse_for_RpcStateChangesInBlockResponse_and_RpcStateChangesError_variant0, #/components/schemas/JsonRpcResponse_for_RpcStateChangesInBlockResponse_and_RpcStateChangesError_variant1` from the response body `oneOf` list for the response status `200`
- **2026-05-07** `28449cf3a488` — 1 breaking, 5 info
  - request property `jsonrpc` was restricted to a list of enum values
  - the request property `id` became optional
  - the request property `jsonrpc` became optional
  - the `id` request property default value `dontcare` was added
  - the `jsonrpc` request property default value `2.0` was added
  - added the new `2.0` enum value to the request property `jsonrpc`

---

[Operation](https://skmtc.dev/near/apis/near-protocol-json-rpc-api/docs/EXPERIMENTAL_changes/post.md) · [API](https://skmtc.dev/near/apis/near-protocol-json-rpc-api.md) · [Page](https://skmtc.dev/near/apis/near-protocol-json-rpc-api/changes/EXPERIMENTAL_changes/post)