Add v7.2.0 release notes (#13910) (#14044)

* Add temp.md

* Delete temp.md

* Create release-7.2.0.md

* Update releases/release-7.2.0.md

* Update releases/release-7.2.0.md

* compatibility changes: add tidb_expensive_txn_time_threshold and TiCDC

Signed-off-by: Aolin <aolin.zhang@pingcap.com>

* Apply suggestions from code review

* new feature: update SQL bindings

Signed-off-by: Aolin <aolin.zhang@pingcap.com>

* Apply suggestions from code review

* Apply suggestions from code review

* Apply suggestions from code review

* add translation for 6 new features

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Co-authored-by: xixirangrang <hfxsd@hotmail.com>

* Apply suggestions from code review

* Update releases/release-7.2.0.md

* add compatibility changes

* Apply suggestions from code review

Co-authored-by: Ran <huangran.alex@gmail.com>

* fix formats + add improvements/bug fixes

* Update release-7.2.0.md

* Apply suggestions from code review

* Apply suggestions from code review

Co-authored-by: Aolin <aolinz@outlook.com>

* sync improvements and bug fixes from docs-cn

* sync from zh release notes

* Update releases/release-7.2.0.md

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* Update releases/release-7.2.0.md

* Update releases/release-7.2.0.md

* Update releases/release-7.2.0.md

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* add key highlight table to release notes

* add compaction-guard-min-output-file-size

* Update releases/release-7.2.0.md

Co-authored-by: Grace Cai <qqzczy@126.com>

* fix the comment format issue that causes build failures

* synch from Chinese

* Apply suggestions from code review

* add translation for TiDB bug fixes

* Update releases/release-7.2.0.md

* Update releases/release-7.2.0.md

* Update releases/release-7.2.0.md

* Apply suggestions from code review

Co-authored-by: Roger Song <roger.song@pingcap.com>

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* Update releases/release-7.2.0.md

* fix comment formats

* Update release-7.2.0.md

* update release highlight table with links ; update runaway queries wording

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Co-authored-by: xixirangrang <hfxsd@hotmail.com>

* Apply suggestions from code review

Co-authored-by: Ran <huangran.alex@gmail.com>

* Apply suggestions from code review

Co-authored-by: Aolin <aolinz@outlook.com>

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Co-authored-by: Grace Cai <qqzczy@126.com>

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* Update releases/release-7.2.0.md

* Update releases/release-7.2.0.md

* sync from zh release notes

* update variable and parameter changes according to zh release notes

* Update releases/release-7.2.0.md

Co-authored-by: Cathy <24819510+benmaoer@users.noreply.github.com>

* add two new TiKV parameters

* wording updates for DDL pause and resume

* add feature: Lightweight statistics initialization

* Apply suggestions from code review

* Update releases/release-7.2.0.md

Co-authored-by: xixirangrang <hfxsd@hotmail.com>

* Apply suggestions from code review

Co-authored-by: Daniël van Eeden <github@myname.nl>

* Update releases/release-7.2.0.md

Co-authored-by: Daniël van Eeden <github@myname.nl>

* Apply suggestions from code review

Co-authored-by: Aolin <aolinz@outlook.com>

* Update releases/release-7.2.0.md

* Update releases/release-7.2.0.md

Co-authored-by: Ran <huangran.alex@gmail.com>

* Apply suggestions from code review

* fix typo

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Co-authored-by: Frank945946 <108602632+Frank945946@users.noreply.github.com>
Co-authored-by: Aolin <aolinz@outlook.com>

* Update releases/release-7.2.0.md

* Update release-7.2.0.md

* fix broken links

* Update releases/release-7.2.0.md

Co-authored-by: xixirangrang <hfxsd@hotmail.com>

* add 7.2 to toc

* Apply suggestions from code review

Co-authored-by: xixirangrang <hfxsd@hotmail.com>
Co-authored-by: Aolin <aolinz@outlook.com>

* Update releases/release-7.2.0.md

* Update upgrade-tidb-using-tiup.md

* Update releases/release-7.2.0.md

---------

Signed-off-by: Aolin <aolin.zhang@pingcap.com>
Co-authored-by: Grace Cai <qqzczy@126.com>
Co-authored-by: Aolin <aolin.zhang@pingcap.com>
Co-authored-by: Ran <huangran.alex@gmail.com>
Co-authored-by: xixirangrang <hfxsd@hotmail.com>
Co-authored-by: Aolin <aolinz@outlook.com>
Co-authored-by: Sam Dillard <sam@influxdata.com>
Co-authored-by: Sam Dillard <sam@pingcap.com>
Co-authored-by: Roger Song <roger.song@pingcap.com>
Co-authored-by: Cathy <24819510+benmaoer@users.noreply.github.com>
Co-authored-by: Daniël van Eeden <github@myname.nl>
Co-authored-by: Frank945946 <108602632+Frank945946@users.noreply.github.com>

TOC.md

@@ -4,7 +4,7 @@
 - [Docs Home](https://docs.pingcap.com/)
 - About TiDB
   - [TiDB Introduction](/overview.md)
-  - [TiDB 7.1 Release Notes](/releases/release-7.1.0.md)
+  - [TiDB 7.2 Release Notes](/releases/release-7.2.0.md)
   - [Features](/basic-features.md)
   - [MySQL Compatibility](/mysql-compatibility.md)
   - [TiDB Limitations](/tidb-limitations.md)
@@ -985,6 +985,8 @@
   - [Release Timeline](/releases/release-timeline.md)
   - [TiDB Versioning](/releases/versioning.md)
   - [TiDB Installation Packages](/binary-package.md)
+  - v7.2
+    - [7.2.0-DMR](/releases/release-7.2.0.md)
   - v7.1
     - [7.1.0](/releases/release-7.1.0.md)
   - v7.0