Client Systems Wiki Revision History
This topic captures Client Systems Wiki content updates over at least the last year for current state platforms and services.
Pending Client System Impacts Revision History is also available.
Historical Client Systems Wiki site content revision history details are available from 5/7/2012 thru 5/31/2024.
Click a column heading arrow to sort by Date, Topic, or Description.
Date | Topic | Description |
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12/8/2025 | Mortgage Rate (OB30C) Futures - Updated settlement procedure. | |
12/5/2025 | For Tag 9537, added info box “CME Globex will validate the order originator identifier submitted in iLink tag 9537-Location for the new event swap instruments, and reject if tag 9537 does not match a restricted jurisdiction.” The following pages were updated:
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12/5/2025 | https://cmegroupclientsite.atlassian.net/wiki/spaces/EPICSANDBOX/pages/457092451
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12/5/2025 | https://cmegroupclientsite.atlassian.net/wiki/spaces/EPICSANDBOX/pages/457323689 - removed from Position 21 “Presence: Mandatory if present in captured message (for NEX SEF Products).“ | |
12/5/2025 | https://cmegroupclientsite.atlassian.net/wiki/spaces/EPICSANDBOX/pages/457224020 - updated Position 21 description to “Presence: Mandatory if present in captured message for Futures & Options.“ | |
12/5/2025 | https://cmegroupclientsite.atlassian.net/wiki/spaces/EPICSANDBOX/pages/457092716 - removed from Position 21 “Presence: Mandatory if present in captured message (for NEX SEF Products).“ | |
12/5/2025 | https://cmegroupclientsite.atlassian.net/wiki/spaces/EPICSANDBOX/pages/457092676
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12/5/2025 | https://cmegroupclientsite.atlassian.net/wiki/spaces/EPICSANDBOX/pages/457223794
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12/5/2025 | https://cmegroupclientsite.atlassian.net/wiki/spaces/EPICSANDBOX/pages/457323272
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12/5/2025 | https://cmegroupclientsite.atlassian.net/wiki/spaces/EPICSANDBOX/pages/457419346 - removed from Position 21 “Presence: Mandatory if present in captured message (for NEX SEF Products).“ | |
12/3/2025 | https://cmegroupclientsite.atlassian.net/wiki/spaces/EPICSANDBOX/pages/457317553 - updated Minimum Order Size and Max Order Size in section “Product Attributes” for FX Spot+ Product Codes EURUSD, GBPUSD, AUDUSD, NZDUSD, USDCAD, USDJPY, USDCHF, and USDMXN. | |
12/3/2025 | https://cmegroupclientsite.atlassian.net/wiki/spaces/EPICSANDBOX/pages/457317709 - updated Minimum Order Size and Max Order Size in section “Product Attributes” for FX Spot+ Product Codes EURUSD, GBPUSD, AUDUSD, NZDUSD, USDCAD, USDJPY, USDCHF, and USDMXN. | |
12/3/2025 | Gold - Content pertaining to Micro Gold Futures settlement methodology has been removed. | |
12/2/2025 | https://cmegroupclientsite.atlassian.net/wiki/spaces/EPICSANDBOX/pages/457095240 - updated content under section “Order Origination Identifier.” | |
11/25/2025 | https://cmegroupclientsite.atlassian.net/wiki/spaces/EPICSANDBOX/pages/457215891 | Added the following new topics: |
11/24/2025 | https://cmegroupclientsite.atlassian.net/wiki/spaces/EPICSANDBOX/pages/457215607 | https://cmegroupclientsite.atlassian.net/wiki/spaces/EPICSANDBOX/pages/457221704 - added release notes for optional versions 3.1.19 with release date 2025-11-24. |
11/24/2025 | https://cmegroupclientsite.atlassian.net/wiki/spaces/EPICSANDBOX/pages/457317709 - added currency pair USD/NOK and USD/SEK in section Display Factor and Additional Considerations. Changed Min Order Increment and Min Order Cancel Threshold values for USDNOK and USDSEK under Product Attributes from 100,000 to 250,000. | |
11/24/2025 | https://cmegroupclientsite.atlassian.net/wiki/spaces/EPICSANDBOX/pages/457317553 - added currency pair USD/NOK and USD/SEK in section Additional Considerations. Changed Min Order Increment and Min Order Cancel Threshold values for USDNOK and USDSEK under Product Attributes from 100,000 to 250,000. | |
11/24/2025 | https://cmegroupclientsite.atlassian.net/wiki/spaces/EPICSANDBOX/pages/457220437 - added <marketsegment id="4" label="Event Contracts II Order Entry Service Gateway"> under section OESGW - SFTP Configuration. | |
11/24/2025 | https://cmegroupclientsite.atlassian.net/wiki/spaces/EPICSANDBOX/pages/714211378 - added Market Segment ID 4 - Event Contracts II Order Entry Service Gateway to section Order Entry Service Gateway. | |
11/21/2025 | https://cmegroupclientsite.atlassian.net/wiki/spaces/EPICSANDBOX/pages/457411947 | https://cmegroupclientsite.atlassian.net/wiki/spaces/EPICSANDBOX/pages/457217693 - added: All open orders from CME Globex Production are unavailable and will be purged by the trading engine with the below exception.
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11/21/2025 | https://cmegroupclientsite.atlassian.net/wiki/spaces/EPICSANDBOX/pages/457317709 - removed columns from tables: Current Display Factor, Current Globex Tick, and Existing MDP 3.0 Channel. | |
11/20/205 | Updated the following CME FedWatch API pages to CME FedWatch End-of-Day: | |
11/19/2025 | https://cmegroupclientsite.atlassian.net/wiki/spaces/EPICSANDBOX/pages/457315124 | New 24-7 Event Contracts - added this new client impact assessment topic. |
11/19/2025 | https://cmegroupclientsite.atlassian.net/wiki/spaces/EPICSANDBOX/pages/457315124 | https://cmegroupclientsite.atlassian.net/wiki/spaces/EPICSANDBOX/pages/1061814276 - added this new client impact assessment topic. |
11/18/2025 | Margin Optimization Service Over API User Guide - Updated responses in the user workflow example and added a CSV Transfer Report section and an ITD cycle reference. | |
11/17/2025 | Added these new pages: | |
11/14/2025 | https://cmegroupclientsite.atlassian.net/wiki/spaces/EPICSANDBOX/pages/457412195 | https://cmegroupclientsite.atlassian.net/wiki/spaces/EPICSANDBOX/pages/664731748 - changed description for: Tag 49 - Identifies entity sending the message (CME Globex). Tag 56 - Identifies Drop Copy SenderCompID – seven digit alphanumeric value consisting of:
For the encapsulated XML message (tag 35-Msg_type=n) message, there will be two tag 56 values.
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11/14/2025 | https://cmegroupclientsite.atlassian.net/wiki/spaces/EPICSANDBOX/pages/457412195 | https://cmegroupclientsite.atlassian.net/wiki/spaces/EPICSANDBOX/pages/665321494 - added bullet in section Fault Tolerance and Fail-Over Management:
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11/14/2025 | https://cmegroupclientsite.atlassian.net/wiki/spaces/EPICSANDBOX/pages/457419638 - removed references to “non-tradable” from U.S. Dollar/Norwegian Krone Spot FX and U.S. Dollar/Swedish Krona Spot FX and CME FX Spot Leg. | |
11/11/2025 | https://cmegroupclientsite.atlassian.net/wiki/spaces/EPICSANDBOX/pages/457411947 | https://cmegroupclientsite.atlassian.net/wiki/spaces/EPICSANDBOX/pages/1042743312 - added this new disaster recovery topic. |
11/11/2025 | https://cmegroupclientsite.atlassian.net/wiki/spaces/EPICSANDBOX/pages/457317553 - Added Product Attributes for USDNOK and USDSEK. | |
11/07/2025 | https://cmegroupclientsite.atlassian.net/wiki/spaces/EPICSANDBOX/pages/457317709 - Added Product Attributes for USDNOK and USDSEK. | |
11/07/2025 | https://cmegroupclientsite.atlassian.net/wiki/spaces/EPICSANDBOX/pages/714211378 - Added section On-Demand Party Details. | |
11/05/2025 | https://cmegroupclientsite.atlassian.net/wiki/spaces/EPICSANDBOX/pages/457638732 - In the info box, the list of eligible products has been updated. | |
11/05/2025 | New Order Cross Enrichment - added this new client impact assessment topic. | |
11/04/2025 | CME FX Link Spread - in table FX Spot Leg CME Globex Tag Summary, all MDP 3.0 Channels are now 330. | |
10/31/2025 | EBS Size Priority Matching - Updated product information and added information on CME Globex Product Reference Sheet. | |
10/29/2025 | Equity Index Options Variable Tick Expansion - added this new client impact assessment topic. | |
10/28/2025 | Spreads and Combinations Available on CME Globex - updated description and example on TL Tail Spread. | |
10/27/2025 | NYMEX and COMEX Market Segment Product Migration - added this new client impact assessment topic. | |
10/22/2025 | Swap-Based Event Contracts and 24-7 Trading - added this new client impact assessment topic. | |
10/22/2025 | Network Connectivity Updates for Market Segment 74 - added this new client impact assessment topic. | |
10/22/2025 | iLink SBE Schema Update - added this new client impact assessment topic. | |
10/22/2025 | Margin Service API - Onboarding and Verification - Updated Testing Endpoints content and table to display the current test environment URLs. | |
10/21/2025 | Updated supported values for the following TradeCaptureReport topics: | |
10/17/2025 | iLink Binary Order Entry - Business Layer - Updated diagram in section "On-Demand Party Details Definition Request - Message Out of Sequence." | |
10/16/2025 | Drop Copy 4.0 Message Specification - Updated diagram and "Application Messages - support Drop Copy message payload." | |
10/16/2025 | Futures and Options Reject Codes - Removed row "119 - Duplicate Threshold Exceeded." | |
10/16/2025 | Drop Copy 4.0 Standard Header - CME Globex to Client System - remove from Tag 122: "UTC Timestamps are sent in number of nanoseconds since Unix epoch synced to a master clock to microsecond accuracy." | |
10/15/2025 | BrokerTec Reject Codes - Added error code: 119 - Duplicate Order Threshold Exceeded: Sent in tag 380-BusinessRejectReason of the Business Reject (tag 35=j) message in response to messages sent from Client System to CME Globex. | |
10/15/2025 | Added new currency pairs:
Added new Product Name and MDP 3.0:tag 55-Symbol:
Added table rows for CME FX Link Spread CME Globex Tag Summary:
Added table rows for FX Spot Leg CME Globex Tag Summary:
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10/15/2025 | iLink - CME Globex Identifiers - Removed sections "Original Client Order ID - Tag 41-OrigCIOrdID" and "Unsolicited Message Tag Usage." | |
10/14/2025 | Drop Copy 4.0 Message Specification - Changed all "iLink" to "Drop Copy." | |
10/13/2025 | Instrument Attribute Specifications - Added "External Info" and "ALIAS" API Label content. | |
10/10/2025 | The "MDP 3.0 - Futures and Options on CME Globex - TCP Recovery for UDP" topic and all related topics have been removed. | |
10/9/2025 | Margin Optimization Service Over API User Guide - the Hosted Optimization is now live; this previous pending impact topic is now a child page of the Margin Service API group of topics. | |
10/9/2025 | Instrument Attribute Specifications - Added "SelectionId" API Label. | |
10/9/2025 |
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