# Older versions

The reference guide contains the documentation of SpecSync for AzureDevOps v3.3.

## Reference for older versions

* v3.4: [SpecSync Reference v3.4](https://speclink.me/specsync-doc-v3)
* v3.3: [SpecSync Reference v3.3](https://github.com/specsolutions/specsync-for-tfs-documentation/blob/line-3.3/SUMMARY.md)
* v3.2: [SpecSync Reference v3.2](https://github.com/specsolutions/specsync-for-tfs-documentation/blob/line-3.2/SUMMARY.md)
* v2.1: [SpecSync Reference v2.1](http://speclink.me/specsync-ref-v21)

## Migration guides

* [Migrating from SpecSync v1 to v2](https://docs.specsolutions.eu/specsync/important-concepts/migrating-from-specsync-v1)
* [Migrating from SpecSync v2 to v3](https://docs.specsolutions.eu/specsync/important-concepts/migrating-from-specsync-v2-to-v3)