How to Upgrade


Concordia Compiler's versions are based on Semantic Versioning.

Although Semantic Versioning is conceived for APIs instead of for applications, we adopt a very similar convention. Thus, changes become predictable and you can know, from the version numbers, when a version is no more compatible with a previous version.

Given a version MAJOR.MINOR.UPDATE:

  • MAIOR is increased when the Compiler or the Language is no more compatible with the previous version.

  • MINOR is increased when adding functionality in a backwards-compatible manner.

  • UPDATE is increased when there are fixes, little changes or little novelties - all of them backwards-compatible.


  • 0.2.0 is compatible with 0.1.0

  • 0.1.1 is compatible with 0.1.0

  • 1.0.0 is not compatible with 0.2.0


NPM upgrades without breaking compatibility (when MINORorUPDATE changes).

For migrating a MAJOR version (e.g., 1.x to 2.x) please read our Migration Guide.

To upgrade a local installation:

npm upgrade concordialang

To upgrade a global installation:

npm upgrade -g concordialang

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