Update MsSql image to 2025-RTM-ubuntu-22.04 by XmlmXmlmX · Pull Request #1595 · testcontainers/testcontainers-dotnet

XmlmXmlmX · 2025-12-02T12:01:48Z

What does this PR do?

I changed the docker container version to mcr.microsoft.com/mssql/server:2025-RTM-ubuntu-22.04.

Why is it important?

The current version 2022-CU14-ubuntu-22.04 does not support the latest features like json columns.

Azure SQL Image 2022 does not support json column type

Related issues

[Bug]: MsSqlImage - JSON columns not supported in 2022 #1596
Related to foreign repo issue Azure SQL Image 2022-latest does not support json column type microsoft/aspire#13084

How to test this PR

Create a entity configration and use .ToJson() in EntityTypeBuilder.

SQL Server 2025 Breaking Changes – Summary

Use this change note when planning upgrades or reviewing PRs that involve SQL Server 2025 compatibility.
For details, see the official documentation and migration guides linked throughout.

Major Breaking Changes

Linked Server Connections
- The default is now to require encryption (Encrypt parameter) and valid TLS certificates; legacy/unsecured connections may break.
- Microsoft Docs: Breaking Changes
Replication & Log Shipping
- Replication roles and log shipping monitoring may fail unless service accounts and encryption use modern standards; trusted certificates are now mandatory for remote distributors.
- Migration Risks Overview
Legacy Feature Removal
- Master Data Services (MDS) and Data Quality Services (DQS) are officially retired.
- Features like Hot-Add CPU, Lightweight Pooling, and extended stored procedures are deprecated or fully unsupported.
- Migration Guide: Deprecated Features
Security Defaults
- "Encrypt by Default" enforced for all client connections; legacy drivers/apps may lose access unless updated for TLS 1.2+.
- Hardened credential storage and authentication for replication/log shipping.
- Breaking Changes - Security
Database Engine & Query Processing
- Collation and Unicode normalization now matches UTF-8 standards, affecting string comparisons/sorting.
- Query optimizer changes may break legacy workloads (join order, trace flag behavior, estimated row counts).
- What's New in SQL Server 2025
Automation & .NET Providers
- Integration Services (SSIS) automation now requires Microsoft.Data.SqlClient—the old System.Data.SqlClient provider is unsupported and must be replaced.
- Critical Breaking Changes for DBAs

Key Takeaway:
SQL Server 2025 enforces stricter security defaults, retires multiple legacy features, and updates data provider compatibility. Review all code and deployment tools for compatibility before upgrading.

Reference Links:

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coderabbitai · 2025-12-02T12:01:58Z

Summary by CodeRabbit

Chores
- Updated SQL Server container to version 2025 RTM for improved compatibility and testing performance.

_{✏️ Tip: You can customize this high-level summary in your review settings.}

Walkthrough

Updated the MsSqlBuilder.MsSqlImage constant to reference the SQL Server 2025 RTM Ubuntu container image instead of the previous 2022 CU14 image. No other code, logic, or error handling changed.

Changes

Cohort / File(s)	Summary
MsSql image version update `src/Testcontainers.MsSql/MsSqlBuilder.cs`	Changed `public const string MsSqlImage` from `mcr.microsoft.com/mssql/server:2022-CU14-ubuntu-22.04` to `mcr.microsoft.com/mssql/server:2025-RTM-ubuntu-22.04`.

Estimated code review effort

🎯 2 (Simple) | ⏱️ ~5–10 minutes

Verify the mcr.microsoft.com/mssql/server:2025-RTM-ubuntu-22.04 tag exists and is correct.
Run the test suite or a representative MsSql container startup to confirm compatibility.
Review any project documentation or examples that reference the old image tag.

Possibly related issues

[Bug]: MsSqlImage - JSON columns not supported in 2022 #1596 — This PR updates MsSqlBuilder.MsSqlImage to the 2025 image, which aligns with the issue reporting missing JSON column support in the 2022 image.

Poem

🐰
I hopped from twenty-two to twenty‑five,
A container tucked and freshly alive,
New image pulled, I give a cheer—
Tests will run and logs appear,
A carrot-shaped build, bright and spry 🥕

Pre-merge checks and finishing touches

✅ Passed checks (3 passed)

Check name	Status	Explanation
Title check	✅ Passed	The title clearly and concisely describes the main change: updating the MsSql Docker image version to 2025-RTM-ubuntu-22.04, which accurately reflects the changeset.
Description check	✅ Passed	The description includes all required sections: 'What does this PR do?' explaining the change, 'Why is it important?' providing clear rationale about JSON column support, related issues, and testing instructions.
Docstring Coverage	✅ Passed	Docstring coverage is 100.00% which is sufficient. The required threshold is 80.00%.

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Post copyable unit tests in a comment

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Reviewing files that changed from the base of the PR and between f5f6a01 and 094fa67.

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src/Testcontainers.MsSql/MsSqlBuilder.cs (2 hunks)

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🧠 Learnings (2)

📓 Common learnings

Learnt from: diegosasw
Repo: testcontainers/testcontainers-dotnet PR: 1583
File: src/Testcontainers.KurrentDb/Testcontainers.KurrentDb.csproj:7-7
Timestamp: 2025-11-17T17:58:43.958Z
Learning: In the testcontainers-dotnet repository, JetBrains.Annotations should use version 2023.3.0 to maintain consistency with the main Testcontainers csproj, rather than always using the latest available version.

📚 Learning: 2025-11-17T17:58:43.958Z

Learnt from: diegosasw
Repo: testcontainers/testcontainers-dotnet PR: 1583
File: src/Testcontainers.KurrentDb/Testcontainers.KurrentDb.csproj:7-7
Timestamp: 2025-11-17T17:58:43.958Z
Learning: In the testcontainers-dotnet repository, JetBrains.Annotations should use version 2023.3.0 to maintain consistency with the main Testcontainers csproj, rather than always using the latest available version.

Applied to files:

src/Testcontainers.MsSql/MsSqlBuilder.cs

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Actionable comments posted: 1

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📥 Commits

Reviewing files that changed from the base of the PR and between 8aa6520 and f5f6a01.

📒 Files selected for processing (1)

src/Testcontainers.MsSql/MsSqlBuilder.cs (2 hunks)

🧰 Additional context used

🧠 Learnings (2)

📓 Common learnings

Learnt from: diegosasw
Repo: testcontainers/testcontainers-dotnet PR: 1583
File: src/Testcontainers.KurrentDb/Testcontainers.KurrentDb.csproj:7-7
Timestamp: 2025-11-17T17:58:43.958Z
Learning: In the testcontainers-dotnet repository, JetBrains.Annotations should use version 2023.3.0 to maintain consistency with the main Testcontainers csproj, rather than always using the latest available version.

📚 Learning: 2025-11-17T17:58:43.958Z

Learnt from: diegosasw
Repo: testcontainers/testcontainers-dotnet PR: 1583
File: src/Testcontainers.KurrentDb/Testcontainers.KurrentDb.csproj:7-7
Timestamp: 2025-11-17T17:58:43.958Z
Learning: In the testcontainers-dotnet repository, JetBrains.Annotations should use version 2023.3.0 to maintain consistency with the main Testcontainers csproj, rather than always using the latest available version.

Applied to files:

src/Testcontainers.MsSql/MsSqlBuilder.cs

⏰ Context from checks skipped due to timeout of 90000ms. You can increase the timeout in your CodeRabbit configuration to a maximum of 15 minutes (900000ms). (3)

GitHub Check: ci (Testcontainers, ubuntu-24.04)
GitHub Check: ci (Testcontainers.MsSql, ubuntu-24.04)
GitHub Check: analyze (csharp)

HofmeisterAn · 2025-12-02T12:42:56Z

We don't update image versions for modules unless it's absolutely necessary to prevent introducing breaking changes. We recommend that developers overwrite and pin their required versions instead. We're even considering removing the default image to encourage developers to set the image explicitly.

XmlmXmlmX · 2025-12-02T12:49:13Z

We don't update image versions for modules unless it's absolutely necessary to prevent introducing breaking changes. We recommend that developers overwrite and pin their required versions instead. We're even considering removing the default image to encourage developers to set the image explicitly.

Ok, understand. So the solution is to use:

new MsSqlBuilder().WithImage("mcr.microsoft.com/mssql/server:2025-latest").Build();

Update MsSql image to 2025-latest

f5f6a01

coderabbitai Bot reviewed Dec 2, 2025

View reviewed changes

Comment thread src/Testcontainers.MsSql/MsSqlBuilder.cs Outdated

Update MsSql image version to 2025-RTM

094fa67

XmlmXmlmX changed the title ~~Update MsSql image to 2025-latest~~ Update MsSql image to 2025-RTM-ubuntu-22.04 Dec 2, 2025

HofmeisterAn closed this Dec 2, 2025

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SQL Server 2025 Breaking Changes – Summary

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