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This page details the changes and fixes included in API v2.12, releasing Saturday, September 12, 2026. New: Added support for additional fields in the Activities API: POST /activities accepts and saves all new fields: solicitationMethod location prospectId reminders activityType event PUT /activities/{id} can update all fields GET /activities/{id} returns all fields when they are populated.…

On September 12, 2026 we will be releasing Neon CRM API v2.12 and deprecating Neon CRM API v2.9. After this date, requests to API v2 that include the header NEON-API-VERSION: 2.9 will receive a HTTP 410 error, indicating that the API version is no longer valid. Learn more about versioning in API v2. If your…

Neon CRM will sunset API v1 and our legacy webhook structure on July 11, 2026. After this date, the API v1 and legacy webhooks server will no longer be available. You’ll need to migrate any API v1 usage to API v2 before July 11, 2026 to avoid disruption. Similarly, legacy webhooks must be edited to select…

This page details the changes and fixes included in API v2.11, released on October 18, 2025. New: Volunteer Management The /addVolunteers endpoints for Shifts and Opportunities now accept the new opportunityRoles parameter to allow for role assignment during volunteer addition. Memberships The /accounts/{id}/memberships endpoint includes two new parameters: isActive indicates the active status of a membership…

On October 18, 2025 we will be deprecating Neon CRM API v2.8. After this date, requests to API v2 that include the header NEON-API-VERSION: 2.8 will receive a HTTP 410 error, indicating that the API version is no longer valid. Learn more about versioning in API v2. If your application currently specifies version 2.8 in…

This page details the changes and fixes included in API v2.10, released on December 14, 2024. New: Added creditCardMasterCardFee property to the GET /payments/donorCoveredFees endpoint Updated schema for GET/POST /customFields and GET/PUT /customFields/{id} endpoints Added displayName field Added isEventSpecificField and attendeeQuestion as query parameters for the GET /customFields Event endpoint Added validation for custom field data…

This page lists the new endpoints added to API version 2.9 on November 16, 2024. View the API v2 reference page for documentation. New Endpoints added for Volunteers: GET /volunteers Endpoints added for Volunteer Groups: GET/PUT/DELETE /groups/{id} POST /groups POST /groups/{id}/addVolunteers GET /groups/{id}/volunteers GET /groups/list DELETE /groups/{id}/removeVolunteers Endpoints added for Volunteer Opportunities: GET/POST /opportunities GET/PUT/PATCH/DELETE /opportunities/{id}…

On December 14, 2024 we will be deprecating Neon CRM API v2.7. After this date, requests to API v2 that include the header NEON-API-VERSION: 2.7 will receive a HTTP 410 error, indicating that the API version is no longer valid. Learn more about versioning in API v2. If your application currently specifies version 2.7 in…

This page details the changes and fixes included in API v2.9, released on October 19, 2024. New: Fields added to /events/{id}/attendees endpoint: prefix email companyName addressLine1 city stateProvince zipCode phone1 phone1Type dob eventName registrationId ticketName Fields added to grants endpoints: committedDate committedAmount parentGrantId Fields added to accounts endpoints: sendTextOptIn smsNumber email1OptOut roleVoList Adds expectedDate to pledge…

On October 19, 2024 we will be deprecating Neon CRM API v2.6. After this date, requests to API v2 that include the header NEON-API-VERSION: 2.6 will receive a HTTP 410 error, indicating that the API version is no longer valid. Learn more about versioning in API v2. If your application currently specifies version 2.6 in your…