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# 0.9.x (version-1) -> 0.10.x (version-2)

Last Updated on 2020-5-25 by Kaifeng Xue.


## 1. Delete Old

| Latest Changes                     | Related Committers |
| ---------------------------------- | ------------------ |
| Remove TS_SessionHandle,TSHandleIdentifier            | Tian Jiang         |
| Remove TSStatus,TSExecuteInsertRowInBatchResp            | Jialin Qiao|

## 2. Add New

| Latest Changes                                               | Related Committers                 |
| ------------------------------------------------------------ | ---------------------------------- |
| Add parameter sessionId in getTimeZone, getProperties, setStorageGroup, createTimeseries... | Tian Jiang|
| Add struct TSQueryNonAlignDataSet                            | Haonan Hou|
| Add struct TSInsertTabletsReq                            | Jialin Qiao|
| Add method insertTablets                            | Jialin Qiao|
| Add method testInsertTablets                            | Xiangdong Huang |

## 3. Update

| Latest Changes                                               | Related Committers     |
| ------------------------------------------------------------ | ---------------------- |
| Replace TS_SessionHandles with SessionIds, TSOperationHandle with queryIds  | Tian Jiang  |
| Add optional TSQueryNonAlignDataSet in TSExecuteStatementResp, TSFetchResultsResp and required bool isAlign in TSFetchResultsReq | Haonan Hou |
| Rename TSStatusType to TSStatus   | Jialin Qiao   |
| Remove sessionId in TSExecuteBatchStatementResp   | Jialin Qiao   |
| Rename insertRows to insertReords, insert to insertRecord, insertBatch to insertTablet   | Jialin Qiao   |
| Use TsDataType and binary rather than string in TSInsertInBatchReq and TSInsertReq  | Kaifeng Xue  |



# 0.8.x -> 0.9.x (version-1)

Last Updated on 2019-10-27 by Lei Rui.


## 1. Delete Old

| Latest Changes                     | Related Committers |
| ---------------------------------- | ------------------ |
| Delete struct TSSetStorageGroupReq | Jialin Qiao        |
| Remove struct TSDataValue          | Lei Rui            |
| Remove struct TSRowRecord          | Lei Rui            |
| Remove optional string version in TSFetchMetadataResp | Genius_pig |
| Remove optional set<string> childPaths, nodesList, storageGroups, devices in TSFetchMetadataResp | Genius_pig |
| Remove optional map<string, string> nodeTimeseriesNum in TSFetchMetadataResp | Genius_pig |
| Remove optional list<list<string>> timeseriesList in TSFetchMetadataResp | Genius_pig |
| Remove optinoal optional i32 timeseriesNum in TSFetchMetadataResp | Genius_pig |
| Remove optional i32 nodeLevel in TSFetchMetadataReq | Genius_pig |


## 2. Add New

| Latest Changes                                               | Related Committers                 |
| ------------------------------------------------------------ | ---------------------------------- |
| Add struct TSBatchInsertionReq                               | qiaojialin                         |
| Add method TSExecuteBatchStatementResp insertBatch(1:TSBatchInsertionReq req) | qiaojialin                         |
| Add Struct TSStatusType                                      | Zesong Sun                         |
| Add TSCreateTimeseriesReq                                    | Zesong Sun                         |
| Add method TSStatus setStorageGroup(1:string storageGroup)   | Zesong Sun, Jialin Qiao            |
| Add method TSStatus createTimeseries(1:TSCreateTimeseriesReq req) | Zesong Sun                         |
| Add struct TSInsertReq                                       | qiaojialin                         |
| Add method TSRPCResp insertRow(1:TSInsertReq req)            | qiaojialin                         |
| Add struct TSDeleteDataReq                                   | Jack Tsai, qiaojialin              |
| Add method TSStatus deleteData(1:TSDeleteDataReq req)        | Jack Tsai, Jialin Qiao, qiaojialin |
| Add method TSStatus deleteTimeseries(1:list\<string> path)   | qiaojialin                         |
| Add method TSStatus deleteStorageGroups(1:list\<string> storageGroup) | Yi Tao                             |
| Add Struct TSExecuteInsertRowInBatchResp                     | Kaifeng Xue |
| Add method insertRowInBatch(1:TSInsertInBatchReq req);       | Kaifeng Xue |
| Add method testInsertRowInBatch(1:TSInsertInBatchReq req);   | Kaifeng Xue |
| Add method testInsertRow(1:TSInsertReq req);                 | Kaifeng Xue |
| Add method testInsertBatch(1:TSBatchInsertionReq req);       | Kaifeng Xue |
| Add struct TSCreateMultiTimeseriesReq                        | qiaojialin |
| Add method createMultiTimeseries(1:TSCreateMultiTimeseriesReq req);       | qiaojialin |


## 3. Update

| Latest Changes                                               | Related Committers     |
| ------------------------------------------------------------ | ---------------------- |
| Add required string timestampPrecision in ServerProperties   | 1160300922             |
| Add optional list\<string\> dataTypeList in TSExecuteStatementResp | suyue                  |
| Update TSStatus to use TSStatusType, instead of using ~~TS_StatusCode, errorCode and errorMessage~~ | Zesong Sun             |
| Rename item in enum TSProtocolVersion from ~~TSFILE_SERVICE_PROTOCOL_V1~~ to IOTDB_SERVICE_PROTOCOL_V1 | qiaojialin             |
| Rename method name from ~~TSExecuteStatementResp executeInsertion(1:TSInsertionReq req)~~ to TSExecuteStatementResp insert(1:TSInsertionReq req) | qiaojialin             |
| Add required i32 compressor in TSCreateTimeseriesReq         | Jialin Qiao            |
| Add optional list\<string> nodesList, optional map\<string, string> nodeTimeseriesNum in TSFetchMetadataResp | jack870131             |
| Add optional i32 nodeLevel in TSFetchMetadataReq             | jack870131, Zesong Sun |
| Change the following methods' returned type to be TSStatus: <br />TSStatus closeSession(1:TSCloseSessionReq req), <br />TSStatus cancelOperation(1:TSCancelOperationReq req), <br />TSStatus closeOperation(1:TSCloseOperationReq req), <br />TSStatus setTimeZone(1:TSSetTimeZoneReq req), <br />TSStatus setStorageGroup(1:string storageGroup), <br />TSStatus createTimeseries(1:TSCreateTimeseriesReq req), <br />TSStatus insertRow(1:TSInsertReq req), <br />TSStatus deleteData(1:TSDeleteDataReq req) | Zesong Sun, qiaojialin |
| Change from ~~required string path~~ to required list\<string> paths in TSDeleteDataReq | qiaojialin             |
| Add optional set\<string> devices in TSFetchMetadataResp     | Zesong Sun             |
| Rename some fields in TSFetchMetadataResp: ~~ColumnsList~~ to columnsList, ~~showTimeseriesList~~ to timeseriesList, ~~showStorageGroups~~ to storageGroups | Zesong Sun             |
| Change struct TSQueryDataSet to eliminate row-wise rpc writing | Lei Rui                |
| Add optional i32 timeseriesNum in TSFetchMetadataResp        | Jack Tsai              |
| Add required i64 queryId in TSHandleIdentifier               | Yuan Tian    |
| Add optional set\<string> childPaths in TSFetchMetadataResp     | Haonan Hou             |
| Add optional string version in TSFetchMetadataResp           | Genius_pig             |
| Add required i64 statementId in TSExecuteStatementReq        | Yuan Tian |
| Add required binary time, required list<binary> valueList, required list<binary> bitmapList and remove required binary values, required i32 rowCount in TSQueryDataSet| Yuan Tian |
| Add optional i32 fetchSize in TSExecuteStatementReq,<br />Add optional TSQueryDataSet in TSExecuteStatementResp| liutaohua |
| Add optional map<string, string> props, optional map<string, string> tags, optional map<string, string> attributes and optional string aliasPath in TSCreateTimeseriesReq | Yuan Tian | 
