Informational RSS feed for IT changes

Extraordinary CS OTE Service Outages (July 27–28, 2026)

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Updated XSD and WSDL templates

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Planned OTE Systems Outage 21 July 2026

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Extraordinary shutdown of Sandbox1 and Sandbox2 CS OTE

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XML Message Formats, XSD Templates – POZE – UPDATE – Review Version and Deployment on 31 July 2026

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XML Message Formats, XSD Templates – POZE Review Version and Deployment on 31 July 2026

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Planned OTE Systems Outage 23 June 2026

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Limitation of Support for Outdated Cryptographic Algorithms

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Reminder: Certificate Renewal for Communication with CS OTE

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The extraordinary shutdown CS OTE 28.05.2026

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Planned OTE Systems Outage 26 May 2026

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PROD/SBX: S/MIME Certificate Renewal and OTE Auth (SBX)

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Unavailability of the testing environment (sandbox) 12.5.2026

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REMINDER: Renewal of the CS OTE auth certificate 12 May 2026 at 15:00

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PROD: Web Services Security Certificate Replacement

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Unavailability of the testing environment (sandbox) 29.4.2026

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Unavailability of the testing environment (sandbox2) 28.4.-5.5.2026

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Changes in the OTE Web Services User Manual

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The extraordinary shutdown of Sandobx2 environment

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The regular shutdown of CS OTE testing environments Sandbox1 and Sanbox2

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CS OTE irregular shutdown on April 1st, 2026

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The extraordinary shutdown CS OTE Sandbox1 on March 27, 2026 will not occur

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The extraordinary shutdown CS OTE Sandbox1 on March 27, 2026

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The time change on March 29th 2026

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Gas: Use of "namespace" in XML messages sent via automated communication from CS OTE

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The extraordinary short shutdown of CS OTE on 12th March 2026

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Test Environment (Sandbox) Unavailability on 27 Feb 2026 – Update

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The extraordinary shutdown of testing environment (sandbox) 26.February 2026

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Temporary Unavailability of Sandbox Test Environments

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Temporary Unavailability of Sandbox Test Environments

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