> For the complete documentation index, see [llms.txt](https://docs.conversational-ai.syntphony.com/ntt-data-eva-r-cai-documentation/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://docs.conversational-ai.syntphony.com/ntt-data-eva-r-cai-documentation/customer-support/support-policy/lifecycle-policy.md).

# Lifecycle Policy

Last modified: May 13, 2024.

The lifecycle schedules below are part of Syntphony Conversational AI's Support Policies. They include Major and Minor Releases of Server version and that have reached their end-of-life date in the past 2 years.

## Syntphony Conversational AI Server Edition

### Server 2.x

<table><thead><tr><th width="167">Release</th><th width="197.33333333333331">Release Date</th><th>End of Life Date</th></tr></thead><tbody><tr><td>server 2.3</td><td>January 2020</td><td>December 2021</td></tr><tr><td>server 2.4</td><td>July 2020</td><td>June 2022 (currently only Legacy support)</td></tr></tbody></table>

### Server 3.3

<table><thead><tr><th width="173.23762376237624">Release</th><th width="192">Release Date</th><th width="370">End of Life Date</th></tr></thead><tbody><tr><td>server 3.3.0</td><td>March 2021</td><td>February 2023</td></tr><tr><td>server 3.3.1</td><td>April 2021</td><td>March 2023 (currently only Legacy support)</td></tr></tbody></table>

*\*Previous Stable*

### Server 3.4

<table><thead><tr><th width="179.33333333333331">Release</th><th width="195">Release Date</th><th>End of Life Date</th></tr></thead><tbody><tr><td>server 3.4.0 </td><td>August 2021</td><td>July 2023</td></tr><tr><td>server 3.4.1</td><td>May 2022</td><td>April 2024</td></tr></tbody></table>

## Syntphony Conversational AI Cloud

Cloud edition always runs the stable version of Syntphony Conversational AI.&#x20;

<table><thead><tr><th width="192.33333333333331">Release</th><th width="189">Release Date</th><th data-type="content-ref"></th></tr></thead><tbody><tr><td>cloud - 4.0</td><td>July 2022</td><td><a href="broken://spaces/8lPsKtemA8pe3KaG8fKk/pages/8T2lw0p3zaynNQSRJVrm">Broken link</a></td></tr><tr><td>cloud - 4.1.1</td><td>October 2022</td><td><a href="broken://spaces/OnucMlfIpsVqWUJvXII3/pages/8T2lw0p3zaynNQSRJVrm">Broken link</a></td></tr><tr><td>cloud - 4.2</td><td>March 2023</td><td><a href="broken://spaces/CNgyfJhagAJwbJB2Gvb2/pages/8T2lw0p3zaynNQSRJVrm">Broken link</a></td></tr><tr><td>cloud - 4.3</td><td>August 2023</td><td><a href="broken://spaces/0dfWocIYu7EhaSi4qlCJ/pages/8T2lw0p3zaynNQSRJVrm">Broken link</a></td></tr><tr><td>cloud - 4.4</td><td>October 2023</td><td><a href="broken://spaces/T4UchcnzQG0iNgiVWGBv/pages/8T2lw0p3zaynNQSRJVrm">Broken link</a></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>

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