Add TiDB v3.0.16 release notes (#3097) (#3148)

Signed-off-by: ti-srebot <[email protected]>

TOC.md

@@ -396,6 +396,7 @@
     - [3.1.0-beta.1](/releases/release-3.1.0-beta.1.md)
     - [3.1.0-beta](/releases/release-3.1.0-beta.md)
   + v3.0
+    - [3.0.16](/releases/release-3.0.16.md)
     - [3.0.15](/releases/release-3.0.15.md)
     - [3.0.14](/releases/release-3.0.14.md)
     - [3.0.13](/releases/release-3.0.13.md)

releases/release-3.0.16.md

@@ -0,0 +1,55 @@
+---
+title: TiDB 3.0.16 Release Notes
+category: Releases
+---
+
+# TiDB 3.0.16 Release Notes
+
+Release date: July 03, 2020
+
+TiDB version: 3.0.16
+
+## Improvements
+
++ TiDB
+
+    - Support the `is null` filter condition in hash partition pruning [#17308](https://github.com/pingcap/tidb/pull/17308)
+    - Assign different `Backoffer`s to each Region to avoid the SQL timeout issue when multiple Region requests fail at the same time [#17583](https://github.com/pingcap/tidb/pull/17583)
+    - Split separate Regions for the newly added partition [#17668](https://github.com/pingcap/tidb/pull/17668)
+    - Discard feedbacks generated from the `delete` or `update` statement [#17841](https://github.com/pingcap/tidb/pull/17841)
+    - Correct the usage of `json.Unmarshal` in `job.DecodeArgs` to be compatible with future Go versions [#17887](https://github.com/pingcap/tidb/pull/17887)
+    - Remove sensitive information in the slow query log and the statement summary table [#18128](https://github.com/pingcap/tidb/pull/18128)
+    - Match the MySQL behavior with `DateTime` delimiters [#17499](https://github.com/pingcap/tidb/pull/17499)
+    - Handle `%h` in date formats in the range that is consistent with MySQL [#17496](https://github.com/pingcap/tidb/pull/17496)
+
++ TiKV
+
+    - Avoid sending store heartbeats to PD after snapshots are received [#8145](https://github.com/tikv/tikv/pull/8145)
+    - Improve the PD client log [#8091](https://github.com/tikv/tikv/pull/8091)
+
+## Bug Fixes
+
++ TiDB
+
+    - Fix the data inconsistency issue occurred because the lock of a written and deleted primary key in one transaction is resolved by another transaction [#18248](https://github.com/pingcap/tidb/pull/18248)
+    - Fix the `Got too many pings` gRPC error log in the PD server-side followers [17944](https://github.com/pingcap/tidb/pull/17944)
+    - Fix the panic issue that might occur when the child of HashJoin returns the `TypeNull` column [#17935](https://github.com/pingcap/tidb/pull/17935)
+    - Fix the error message when access is denied [#17722](https://github.com/pingcap/tidb/pull/17722)
+    - Fix JSON comparison issue for the `int` and `float` types [#17715](https://github.com/pingcap/tidb/pull/17715)
+    - Update the failpoint which causes data race [#17710](https://github.com/pingcap/tidb/pull/17710)
+    - Fix the issue that the timeout pre-split Regions might not work when creating tables [#17617](https://github.com/pingcap/tidb/pull/17617)
+    - Fix the panic caused by ambiguous error messages after the sending failure [#17378](https://github.com/pingcap/tidb/pull/17378)
+    - Fix the issue that `FLASHBACK TABLE` might fail in some special cases [#17165](https://github.com/pingcap/tidb/pull/17165)
+    - Fix the issue of inaccurate range calculation results when statements only have string columns [#16658](https://github.com/pingcap/tidb/pull/16658)
+    - Fix the query error occurred when the `only_full_group_by` SQL mode is set [#16620](https://github.com/pingcap/tidb/pull/16620)
+    - Fix the issue that the field length of results returned from the `case when` function is inaccurate [#16562](https://github.com/pingcap/tidb/pull/16562)
+    - Fix the type inference for the decimal property in the `count` aggregate function [#17702](https://github.com/pingcap/tidb/pull/17702)
+
++ TiKV
+
+    - Fix the potential wrong result read from ingested files [#8039](https://github.com/tikv/tikv/pull/8039)
+    - Fix the issue that a peer can not be removed when its store is isolated during multiple merge processes [#8005](https://github.com/tikv/tikv/pull/8005)
+
++ PD
+
+    - Fix the `404` error when querying Region keys in PD Control [#2577](https://github.com/pingcap/pd/pull/2577)

releases/release-notes.md

@@ -18,6 +18,7 @@ aliases: ['/docs/v3.1/releases/release-notes/','/docs/v3.1/releases/rn/']
 
 ## 3.0
 
+- [3.0.16](/releases/release-3.0.16.md)
 - [3.0.15](/releases/release-3.0.15.md)
 - [3.0.14](/releases/release-3.0.14.md)
 - [3.0.13](/releases/release-3.0.13.md)