From 11e8cfaa8795a18d310c9ec192f61d24c39307e8 Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?Jo=C3=A3o=20Eiras?= <joao.carlos.eiras@tine.no>
Date: Mon, 24 Jan 2022 13:58:37 +0100
Subject: [PATCH] docs(mssql): clarify in comments and docs supports MS SQL
 versions (#13989)

---
 docs/manual/other-topics/dialect-specific-things.md | 6 +++++-
 docs/manual/other-topics/upgrade-to-v7.md           | 6 ++++++
 lib/dialects/mssql/index.js                         | 8 +++++++-
 3 files changed, 18 insertions(+), 2 deletions(-)

diff --git a/docs/manual/other-topics/dialect-specific-things.md b/docs/manual/other-topics/dialect-specific-things.md
index ddb84142aa71..9cf9b961d3be 100644
--- a/docs/manual/other-topics/dialect-specific-things.md
+++ b/docs/manual/other-topics/dialect-specific-things.md
@@ -113,7 +113,11 @@ const sequelize = new Sequelize('database', 'username', 'password', {
 
 ### MSSQL
 
-The underlying connector library used by Sequelize for MSSQL is the [tedious](https://www.npmjs.com/package/tedious) npm package (version 6.0.0 or above).
+The supported versions of MS SQL are from MS SQL 2017 (version 14) up to the most recent version.
+
+#### Tedious
+
+The default underlying connector library used by Sequelize for MSSQL is the [tedious](https://www.npmjs.com/package/tedious) npm package.
 
 You can provide custom options to it using `dialectOptions.options` in the Sequelize constructor:
 
diff --git a/docs/manual/other-topics/upgrade-to-v7.md b/docs/manual/other-topics/upgrade-to-v7.md
index a348fa0e6529..07646f672738 100644
--- a/docs/manual/other-topics/upgrade-to-v7.md
+++ b/docs/manual/other-topics/upgrade-to-v7.md
@@ -30,3 +30,9 @@ sequelize.connectionManager.getConnection({ type: 'SELECT' });
 // Do this:
 sequelize.connectionManager.getConnection({ type: 'read' });
 ```
+
+### Microsoft SQL Server Support
+
+Sequelize v7 fully supports MS SQL Server 2017 (version 14) onwards, up from 2012 (version 13) in
+Sequelize v6, as this matches Microsoft's own [mainstream support](
+https://docs.microsoft.com/en-us/sql/sql-server/end-of-support/sql-server-end-of-life-overview?view=sql-server-ver15#lifecycle-dates).
diff --git a/lib/dialects/mssql/index.js b/lib/dialects/mssql/index.js
index 52c72926b4b7..74c8d3c41259 100644
--- a/lib/dialects/mssql/index.js
+++ b/lib/dialects/mssql/index.js
@@ -51,7 +51,13 @@ class MssqlDialect extends AbstractDialect {
   }
 }
 
-MssqlDialect.prototype.defaultVersion = '12.0.2000'; // SQL Server 2014 Express, minimum supported version
+// SQL Server 2017 Express (version 14), minimum supported version, all the way
+// up to the most recent version. When increasing this version, remember to
+// update also the minimum version in the documentation at
+//   docs/manual/other-topics/dialect-specific-things.md
+// and set the relevant years for the mssql Docker images in the ci.yml file at
+//   .github/workflows/ci.yml
+MssqlDialect.prototype.defaultVersion = '14.0.1000';
 MssqlDialect.prototype.Query = Query;
 MssqlDialect.prototype.name = 'mssql';
 MssqlDialect.prototype.TICK_CHAR = '"';