generated: '2026-08-12'
method: searched
source: https://developer.egym.com/mms-api-v2/change-log
api: EGYM MMS API V2
scheme: dated-entries
format: markdown bullet list, ISO dates, non-backward-compatible items italicised
current_version: v2
support_policy: We support the latest API version only.
entry_count: 22
window: '2022-10-04 to 2026-07-21 (full published history captured; EGYM publishes the whole list)'
entries:
- date: '2026-07-21'
  breaking: false
  category: change
  highlight: Rate limiting moved from a fixed time-window to a token-bucket algorithm, with
    updated 429 guidance.
- date: '2026-06-24'
  breaking: false
  category: change
  highlight: Webhook events are now filtered to account for data-sharing consent.
- date: '2026-05-29'
  breaking: true
  category: deprecation
  highlight: 'Test server URL https://one-mms-service.ext-1.test.co.egym.coffee deprecated
    and no longer supported; use https://mms.api.ed.ts.egym.coffee instead.'
- date: '2026-04-08'
  breaking: false
  category: addition
  highlight: Search GroupX Classes response contract in the Class Booking blueprint extended
    to return the full GroupXClass object instead of brief information only.
- date: '2026-03-02'
  breaking: false
  category: validation
  highlight: membership.endOfContract can no longer be before membership.startOfContract.
- date: '2025-12-11'
  breaking: false
  category: addition
  highlight: New API for operations with NFC tokens.
- date: '2025-09-25'
  breaking: false
  category: addition
  highlight: New Get account role operation and new gymOwner role for Set account role.
- date: '2025-08-28'
  breaking: false
  category: addition
  highlight: New PATCH operation to partially update an account.
- date: '2025-08-13'
  breaking: false
  category: addition
  highlight: New NotFound entity TAN added to 404 metadata errors.
- date: '2024-11-28'
  breaking: false
  category: addition
  highlight: 404 Not Found error extended with entity in metadata.
- date: '2024-10-21'
  breaking: false
  category: addition
  highlight: New API to list Corporate Fitness member accounts.
- date: '2024-09-11'
  breaking: false
  category: addition
  highlight: New API to retrieve a member account by RFID.
- date: '2024-07-22'
  breaking: false
  category: addition
  highlight: New API to retrieve a member account by NFC.
- date: '2024-07-12'
  breaking: false
  category: change
  highlight: Scope of the RFID update operation narrowed to MMS-only update of a user's RFIDs.
- date: '2024-04-30'
  breaking: false
  category: change
  highlight: membership.endOfContract made optional.
- date: '2024-03-21'
  breaking: false
  category: addition
  highlight: New webhook event type MEMBERSHIP_DELETE.
- date: '2023-12-15'
  breaking: false
  category: addition
  highlight: New API to delete an account image.
- date: '2023-12-08'
  breaking: false
  category: addition
  highlight: New webhook event type EQUIPMENT_CHECKIN.
- date: '2023-10-05'
  breaking: false
  category: change
  highlight: Product Booking API updated to support advanced upselling use cases.
- date: '2023-05-31'
  breaking: false
  category: addition
  highlight: New API to delete an account membership.
- date: '2023-05-04'
  breaking: false
  category: addition
  highlight: New API to manage a member role in the gym.
- date: '2023-04-28'
  breaking: false
  category: addition
  highlight: New API for Trainer Tasks management.
- date: '2023-01-12'
  breaking: false
  category: addition
  highlight: New endpoint to instantly deactivate a product booking for a member.
- date: '2022-11-14'
  breaking: false
  category: addition
  highlight: New endpoint to retrieve a member account by email.
- date: '2022-10-04'
  breaking: false
  category: addition
  highlight: New endpoint to list all member accounts.
- date: '2022-10-04'
  breaking: true
  category: change
  highlight: endDate in the Product Booking Activate API changed to required.
other_changelogs:
- api: EGYM Equipment Vendor API (server-to-server)
  location: In-specification, in info.description as a "Changelog of Documentation" table.
  entries:
  - {version: 1.1.1, highlight: 'Introduced NFC-based login via Apple/Google Wallet on POST /api/v1/oauth/token.'}
  - {version: 1.1.0, highlight: Update of Introduction.}
  note: Undated — version numbers only, so the age of a change cannot be read.
- api: EGYM Micro Web Applications (MWA)
  location: https://developer.egym.com/mwa/docs/changelog
gaps:
- 'Only the MMS API V2 has a dated change log. The Data Hub, Data Export, User Connect,
  Equipment Vendor (standalone) and Canonical GroupX Classes APIs publish none.'
- 'Breaking changes are signalled by italic formatting in prose, which does not survive
  machine reading — there is no structured breaking flag, no RSS/Atom feed and no
  machine-readable changelog endpoint.'