Tagged by CORD Jenkins version-tag job: 4368, for Gerrit patchset: 18379

1. 52846ba Bump xos libraries to version 4.0.0 by Daniele Moro · 4 years, 3 months ago
2. 1dc711d [SEBA-742] Adding methods to validate subscriber tech_profile association by Matteo Scandolo · 5 years ago
3. 9839c6e Using a newer xosmigrate library by Matteo Scandolo · 5 years ago
4. a108b9c SEBA-566 Add linting and fix errors in olt-service by Scott Baker · 5 years ago
5. 0e899c9 SEBA-497 delayering, Makefile, and tox for volt-synchronizer by Scott Baker · 5 years ago 2.2.0
6. 4a8b4d6 [CORD-2809] Synchronizer OLTDevice in VOLTHA by Matteo Scandolo · 6 years ago