generated: '2026-08-13'
method: searched
source: https://developers.outreach.io/api/deprecated-features
provider: Outreach
providerId: outreach
scheme: dated notices (no semantic version)
current_version: v2
notes: >-
  Outreach publishes no single unified API changelog. Change history is split across two dated surfaces: the
  REST API's "Deprecated features" page, which carries only breaking/behaviour changes, and the Data Sharing
  "Release notes" page, which carries schema additions to the shared data model. Additive REST API changes
  (new resources, new attributes) are not announced on either page. Both surfaces are captured below.
surfaces:
- name: REST API deprecated features
  url: https://developers.outreach.io/api/deprecated-features
  covers: breaking and behaviour changes only
- name: Data Sharing release notes
  url: https://developers.outreach.io/data-sharing/release-notes
  covers: additive schema changes to the Snowflake / Delta Sharing data model
- name: MCP server documentation
  url: https://developers.outreach.io/mcp-server
  covers: undated — tool catalog is versioned only by the count in the page heading
gaps:
- No RSS/Atom feed or machine-readable changelog is published for either surface.
- No dated changelog exists for additive REST API changes; new resources appear in the OpenAPI without a
  notice.
- The Tool Catalog page heading says "41 tools" while the overview page and Authentication page both say
  "32 tools" and "all 32 tools" — the MCP surface is self-inconsistent as published on 2026-08-13.
entries:
- date: '2026-07'
  surface: rest-api
  breaking: true
  effective: '2026-10-01'
  highlights:
  - '`contactHistogram` removed from the default Prospect payload; must be requested via fields[prospect].'
- date: '2025-12'
  surface: data-sharing
  breaking: false
  highlights:
  - Added email_message_synced_event table.
- date: '2025-10-10'
  surface: developer-portal
  breaking: false
  highlights:
  - Security advisory to partners on least-privilege scopes and integration monitoring.
- date: '2025-08'
  surface: data-sharing
  breaking: true
  highlights:
  - Added kaia_coach_cards_activity table; added unique fields to kaia_* tables.
  - Renamed columns in kaia_coach_cards_activity table.
- date: '2025-07'
  surface: data-sharing
  breaking: false
  highlights:
  - Added rulesets, sequence_templates and record_actor_assignments tables.
- date: '2025-01'
  surface: data-sharing
  breaking: false
  highlights:
  - Added send_disabled_at and sync_disabled_at columns to mailboxes.
- date: '2024-11'
  surface: data-sharing
  breaking: false
  highlights:
  - Added funnel_insights, funnel_insights_prospects, team_memberships_history, call_purposes,
    phone_numbers, forecasts, forecast_calls and forecast_configs tables.
  - Added ruleset_id to Sequences; engagement_score and locality to Accounts.
- date: '2024-10'
  surface: rest-api
  breaking: true
  effective: '2025-02-12'
  highlights:
  - Collection queries stop counting by default; pass count=true to keep meta.count.
- date: '2024-05'
  surface: data-sharing
  breaking: true
  highlights:
  - Kaia Meeting Reactions and Kaia Meeting Topics generally available.
  - Added roles table and users.role_id; deprecated users.role.
- date: '2024-03'
  surface: rest-api
  breaking: true
  effective: '2024-09'
  highlights:
  - Original Audit Log API deprecated in favour of a new Audit Log API (beta).
- date: '2023-05'
  surface: rest-api
  breaking: true
  effective: '2023-10-31'
  highlights:
  - Sorting by a relationship's attribute deprecated.
  - Including related objects in create/update responses removed.
  - Filtering by some relationships' non-id attributes deprecated.