Table of Contents

# Next scheduled major/minor release: 1.2

# Feature freeze (branch forking):  Estimated for 31th July 15th Seq 2022

# Code freeze (first voting RC):  Estimated for the 15th 30th of Aug Seq 2022

# Release date: Estimated for the 31th 15th of Aug Oct 2022

# Release manager: yiguolei: Mingyu Chen

# Release Note

https://github.com/apache/doris/issues/14461

======= Below are deprecated ==========

# New Features

## 1. Support using S3 as cold data storage [dataroaring]

* [DSIP-010](https://cwiki.apache.org/confluence/display/DORIS/DSIP-010%3A+Cooldown+Data+to+S3)
* [#10280](https://github.com/apache/doris/pull/10280)
* [#10405](https://github.com/apache/doris/pull/10405)

## 2. JAVA UDF and JAVA UDAF [happenlee]

* [DSIP-001](https://cwiki.apache.org/confluence/display/DORIS/DSIP-001%3A+Java+UDF)

## 3. Support merge-on-write implementation for unique key data model [dataroaring, wangbo]

* [DSIP-018](https://cwiki.apache.org/confluence/display/DORIS/DSIP-018%3A+Support+Merge-On-Write+implementation+for+UNIQUE+KEY+data+model)

## 4. Multi-Catalog support [morningman]

* [DSIP-014](https://cwiki.apache.org/confluence/display/DORIS/DSIP-014%3A+Multi+Catalog+Support)

## 5. New Optimizer: Nereids (EmmyMiao87, morrySnow)

* [Project-18](https://github.com/apache/doris/projects/18)

## 6. Light weight schema change [dataroaring, yiguolei]

* [#10136](https://github.com/apache/doris/pull/10136)

## 7. New Types

1. Array Type [DSIP-013](https://cwiki.apache.org/confluence/display/DORIS/DSIP-013%3A+Support+ARRAY+type) [zhengguoyang, lihangyu]
2. Jsonb Type [#10322](https://github.com/apache/doris/pull/10322) [xiaokang]
3. Decimal v3 [#9582](https://github.com/apache/doris/pull/9582) [yiguolei]
4. Data Datetime v2 [#9916](https://github.com/apache/doris/pull/9916)[yiguolei]

## 8. Support for deployment in k8s [caiconghui]

## 9.  RPC UDF and UDAF(vec) [yangzhg, chenlinzhong] 

*  UDF [#7519](https://github.com/apache/doris/pull/7519)

*  UDAF [#8510](https://github.com/apache/doris/pull/8510) [#10685] (https://github.com/apache/doris/pull/10685)

# Performance Improvement

## 1. Global Dictionary for low cardinality data for group by. [yiguolei]

* [#9842](https://github.com/apache/doris/pull/9842)

## 2. Store decoded bitshuffle data in page cache [yiguolei]

* [#10036](https://github.com/apache/doris/pull/10036)

## 3. Compaction and Load optimization [morningman, yixiudt]

Support load and compaction for single replica

* [DSIP-015](https://cwiki.apache.org/confluence/display/DORIS/DSIP-015%3A+Support+single+replica+load+for+load)
* [#10298](https://github.com/apache/doris/pull/10298)
* [#10301](https://github.com/apache/doris/pull/10301)

## 4. Improvements in Runtime Filter [yiguolei]

The Runtime Filter feature with vectorized engine still need to be improved.

## 5. Full vectorization support [happenlee]

In version 1.2, all features should be supported running with vectorized engine, including:

1. Stream Load
2. Insert into values
3. Insert into select
4. Broker load
5. Spark dpp
6. Routine load
7. Query for olap, hive, iceberg, mysql, odbc, es
8. File format support: parquet, json, csv, orc file, plain text
9. Schema Change
10. Compaction
11. Export
12. Select outfile 

# Stability Improvement

## 1. New memory tracker [xinyi]

* [DSIP-002](https://cwiki.apache.org/confluence/display/DORIS/DSIP-002%3A+Refactor+memory+tracker+on+BE)

# Test

## 1. Add more regression tests [dataroaring]

Add more regression tests

# Refactor

## Remove and Refactor old codes 

1. Remove Mini load related code [yiguolei]
2. Remove Alpha Rowset (Segment v1) code [yiguolei]
3. Compatibility for C++ UDF Framework running in vectorized query engine. [weizuo, Garibel]

...