Disclaimer on Upgrade Sequence Flexibility
While Avaya recommends following the documented upgrade sequence to maintain solution stability and validated integration, the sequence allows flexibility in specific scenarios. Avaya supports component versions that may be ahead or behind others in the upgrade path, provided they are documented in the Product Compatibility Matrix published on the Avaya Support site. Customers may upgrade individual components out of sequence where such configurations are certified to be interoperable.
Refer to the Product Compatibility Matrix before performing any upgrades out of sequence.