# 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
&#x20;future. <br>

All versions released by assets covered by Customer Support Plans have an associated support for 1 year. Most
&#x20;of the products will be able to update to newer versions in time, but in case EOS applies, NTT DATA will provide
&#x20;a minimum of 6 months notification prior to ending support for those versions. <br>

Customer Support for **PREMIER and PLATINUM** plans can purchase **Legacy support service** depending on the
&#x20;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:
\
&#x20;          o Extended technical support for deprecated product versions.
\
&#x20;          o Updates, fixes, security alerts, data fixes, and critical patch updates.

## Syntphony Conversational AI Server Edition <a href="#syntphony-conversational-ai-server-edition" id="syntphony-conversational-ai-server-edition"></a>

### Server 2.x <a href="#server-2.x" id="server-2.x"></a>

| 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 <a href="#syntphony-conversational-ai-cloud" id="syntphony-conversational-ai-cloud"></a>

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

<table><thead><tr><th width="175.60003662109375">Release</th><th width="271.4000244140625"> Release Date</th><th></th></tr></thead><tbody><tr><td>cloud - 4.0</td><td>July 2022</td><td></td></tr><tr><td>cloud - 4.1.1</td><td>October 2022</td><td></td></tr><tr><td>cloud - 4.2</td><td>March 2023</td><td></td></tr><tr><td>cloud - 4.3</td><td>August 2023</td><td></td></tr><tr><td>cloud - 4.4</td><td>October 2023</td><td></td></tr><tr><td>cloud - 4.5</td><td>February 2024</td><td><a href="https://docs.eva.bot/user-guide">https://docs.eva.bot/user-guide</a></td></tr></tbody></table>

Framework Agreement for contracting our product:

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