Lifecycle Policy

Last modified: Nov 18, 2025

Syntphony Lifecycle Policy provides consistent and predictable guidelines for support throughout the life of a product, helping customers manage their IT investments and environments while strategically planning for the future.

All versions released by assets covered by Customer Support Plans have an associated support for 1 year. Most of the products will be able to update to newer versions in time, but in case EOS applies, NTT DATA will provide a minimum of 6 months notification prior to ending support for those versions.

Customer Support for PREMIER and PLATINUM plans can purchase Legacy support service depending on the scenario:

• EOS (End of Support): EOS is often the precursor to EOL. The product would announce an end date after which they no longer support a system or service. This applies before a migration of users to newer versions of the product. In this scenario Legacy support provides you with an extra 1 year of support.

• EOL (End of Life): This means the version should be taken out of service. In this scenario Legacy support provides you with an extra 1 year of support.

• Service conditions: Legacy support service is available for an additional licence fee and benefits from: o Extended technical support for deprecated product versions. o Updates, fixes, security alerts, data fixes, and critical patch updates.

Syntphony Conversational AI Server Edition

Server 2.x

Release	Release Date	End of Life Date
server 2.3	January 2020	December 2021
server 32.4	July 2020	June 2022 (currently only Legacy support)

*Previous Stable

Server 3.3

Release	Release Date	End of Life Date
server 3.3.0	March 2021	February 2023
server 3.3.1	April 2021	March 2023 (currently only Legacy support)

*Previous Stable

Server 3.4

Release	Release Date	End of Life Date
server 3.4.0	August 2021	July 2023
server 3.4.1	May 2022	April 2024

Syntphony Conversational AI Cloud

Cloud edition always runs the stable version of Syntphony Conversational AI.

Release	Release Date
cloud - 4.0	July 2022
cloud - 4.1.1	October 2022
cloud - 4.2	March 2023
cloud - 4.3	August 2023
cloud - 4.4	October 2023
cloud - 4.5	February 2024	https://docs.eva.bot/user-guide

Framework Agreement for contracting our product:

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Framework Agreement for contracting EMEAL NTT DATA products November 23_ro.pdf

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