Changes to the protocols and an update to the list of changes

Please be reminded of the upcoming changes to the FAST and SIMBA SPECTRA protocols for the Derivatives market, scheduled for implementation on June 23, 2025, as part of version 8.3. In case the date changes, a notification will be sent.

Please note that the changes to the FAST and SIMBA SPECTRA protocols do not maintain backward compatibility and require updates to the client-side software.

The description of changes, templates, and schemas are available via the links below.

• https://ftp.moex.com/pub/SIMBA/Spectra/test/T1/SIMBA_8.3
• https://ftp.moex.com/pub/FAST/Spectra/test/FAST_8.3

We also remind you of the update to the list of changes in the Derivatives market. The updated list of changes is provided in the attached file.

For further details, please refer to the link to the current documentation: https://ftp.moex.com/pub/ClientsAPI/Spectra/CGate/test/docs/.