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Azure SDK .NET - Versioning

This document covers the basic versioning strategy and which properties to use. It is based on the rules outlined in our Azure SDK Releases doc and it closely matches the .NET versioning rules but simplified to only include the parts necessary for our libraries.

Package Versioning

Package version will look like:

MAJOR.MINOR.PATCH-PRERELEASE

In the project file use the Version property to define the MAJOR.MINOR.PATCH-preview.X part of the version.

<Version>1.0.0-preview.1</Version>

By default builds will replace any prerelease identifier with a dev.yyyyMMdd.r to ensure we have unique package versions. The date will come from either today's date or a property named OfficialBuildId which we will pass as part of our build pipelines.

If we need to produce a package that is not a dev version and has the version in the project (i.e. stable or preview) then the SkipDevBuildNumber should be passed as true to the packaging command.

Incrementing the version

See Incrementing after release for general guidance but at a high level we will do the following versioning changes:

  • After a preview release we bump the number after the preview. 1.0.0-preview.1 -> 1.0.0-preview.2
  • After a GA release we bump the minor version and switch to preview 1. 1.0.0 -> 1.1.0-preview.1
  • Prior to a hotfix release we bump the patch version. 1.0.0 -> 1.0.1

Assembly Versioning

By default the assembly version will be set to the Version property but if the assembly version needs to be different for some reason then it can be independently set by the AssemblyVersion property.

File Versioning

File version has 4 parts and needs to increase every official build. This is especially important when building MSIs.

They will use the following format which is also used by the .NET team:

FILEMAJOR.FILEMINOR.FILEPATCH.FILEREVISION
  • FILEMAJOR: Specified in the first part of VersionPrefix property.
  • FILEMINOR: Set to MINOR * 100 + PATCH / 100, where MINOR and PATCH are the 2nd and 3rd parts of VersionPrefix property.
  • FILEPATCH: Set to (PATCH % 100) * 100 + yy.
  • FILEREVISION: Set to (50 * mm + dd) * 100 + r. This algorithm makes it easy to parse the month and date from FILEREVISION while staying in the range of a short which is what a version element uses.

The versioning scheme imposes the following limits on these version parts:

  • MAJOR version is in range [0-65535]
  • MINOR version is in range [0-654]
  • PATCH version is in range [0-9999]

Build Parameters

Parameter Description
OfficialBuildId ID of current build. The accepted format is yyyyMMdd.r. Should be passed to build in YAML official build defintion.