> For a complete page index, fetch https://developer.close.com/llms.txt

# Changelog

## Entries

- [API Changelog](https://developer.close.com/api/overview/changelog.md)
- [Rent a phone number for another user](https://developer.close.com/api/overview/changelog/2026/9/10.md)
- [`user_id` and `is_group_number` deprecated on phone numbers](https://developer.close.com/api/overview/changelog/2026/7/21.md)
- [Membership creation security enhancement](https://developer.close.com/api/overview/changelog/2026/7/16.md)
- [Rich text notes on Opportunities](https://developer.close.com/api/overview/changelog/2026/6/1.md)
- [Forms API](https://developer.close.com/api/overview/changelog/2026/5/7.md)
- [Playbooks API](https://developer.close.com/api/overview/changelog/2026/5/4.md)
- [Blocked Phone Numbers API](https://developer.close.com/api/overview/changelog/2026/4/10.md)
- [OpenAPI Spec now available](https://developer.close.com/api/overview/changelog/2026/4/6.md)
- [`applies_to` field on Outcomes deprecated for write operations](https://developer.close.com/api/overview/changelog/2026/3/6.md)
- [Form Submissions API](https://developer.close.com/api/overview/changelog/2026/1/14.md)
- [Sender field requirements for Email activities](https://developer.close.com/api/overview/changelog/2025/12/17.md)
- [Note titles and pinned_at timestamps](https://developer.close.com/api/overview/changelog/2025/8/25.md)
- [Transcription related fields in Meeting API](https://developer.close.com/api/overview/changelog/2025/8/14.md)
- [Outcome API](https://developer.close.com/api/overview/changelog/2025/7/29.md)
- [Field Enrichment API](https://developer.close.com/api/overview/changelog/2025/7/16.md)
- [WhatsApp Messages API](https://developer.close.com/api/overview/changelog/2025/6/25.md)
- [lead_id is now optional when creating a Contact or Opportunity](https://developer.close.com/api/overview/changelog/2025/2/14.md)
- [Updating Webhook Subscriptions](https://developer.close.com/api/overview/changelog/2025/1/6.md)
- [record_calls field on memberships deprecated](https://developer.close.com/api/overview/changelog/2024/12/2.md)
- [Date format in CSV Exports](https://developer.close.com/api/overview/changelog/2024/11/6.md)
- [Archiving Custom Object Types](https://developer.close.com/api/overview/changelog/2024/9/9.md)
- [Custom Objects are now public](https://developer.close.com/api/overview/changelog/2024/8/28.md)
- [Delete Lead & Opportunity status change activities](https://developer.close.com/api/overview/changelog/2024/6/26.md)
- [Create Lead & Opportunity status change activities](https://developer.close.com/api/overview/changelog/2024/6/20.md)
- [Disallow Membership creation via API Keys](https://developer.close.com/api/overview/changelog/2024/6/10.md)
- [Lead API only returns incomplete tasks.](https://developer.close.com/api/overview/changelog/2024/6/7.md)
- [Rate limit body deprecated.](https://developer.close.com/api/overview/changelog/2024/4/24.md)
- [Commenting API](https://developer.close.com/api/overview/changelog/2024/3/28.md)
- [Pipeline fields in Opportunities](https://developer.close.com/api/overview/changelog/2024/3/27.md)
- [Files API, Email Attachments](https://developer.close.com/api/overview/changelog/2024/2/26.md)
- [Custom Objects (BETA)](https://developer.close.com/api/overview/changelog/2024/2/21.md)
- [Email Unsubscribe](https://developer.close.com/api/overview/changelog/2024/2/15.md)
- [Scheduling Link integrations](https://developer.close.com/api/overview/changelog/2023/11/13.md)
- [Returning single custom fields in the Leads API](https://developer.close.com/api/overview/changelog/2023/11/10.md)
- [Transcription related fields in Call API](https://developer.close.com/api/overview/changelog/2023/10/26.md)
- [Change to Sequence Subscription API](https://developer.close.com/api/overview/changelog/2023/10/2.md)
- [Third party Meeting integrations & Meeting search](https://developer.close.com/api/overview/changelog/2023/9/21.md)
- [Change to the Sequence API](https://developer.close.com/api/overview/changelog/2023/8/29.md)
- [Rate limit headers updated.](https://developer.close.com/api/overview/changelog/2023/7/21.md)
- [Lead visibility related fields in Role](https://developer.close.com/api/overview/changelog/2023/6/29.md)
- [OAuth Applications](https://developer.close.com/api/overview/changelog/2023/6/20.md)
- [Scheduling Links](https://developer.close.com/api/overview/changelog/2023/5/1.md)
- ['Hidden' type Custom Field values visible in Event Log](https://developer.close.com/api/overview/changelog/2022/12/22.md)
- [SMS Templates](https://developer.close.com/api/overview/changelog/2022/9/26.md)
- [Sequences](https://developer.close.com/api/overview/changelog/2022/3/10.md)
- [MMS support](https://developer.close.com/api/overview/changelog/2022/2/15.md)
- [Advanced Filtering API](https://developer.close.com/api/overview/changelog/2022/2/14.md)
- [New Webhook Filters](https://developer.close.com/api/overview/changelog/2021/11/16.md)
- [Undocumented an old endpoint for Activity Reporting](https://developer.close.com/api/overview/changelog/2021/11/9.md)
- [Custom Fields on Opportunities](https://developer.close.com/api/overview/changelog/2021/6/11.md)
- [Automatically pause failing webhook subscriptions](https://developer.close.com/api/overview/changelog/2021/6/7.md)
- [Custom Field ID Format](https://developer.close.com/api/overview/changelog/2021/5/17.md)
- [Shared Custom Fields](https://developer.close.com/api/overview/changelog/2021/4/22.md)
- [Contact Filtering](https://developer.close.com/api/overview/changelog/2021/4/13.md)
- [Change to the Sequence API](https://developer.close.com/api/overview/changelog/2021/3/31.md)
- [Changes to the Sequence API](https://developer.close.com/api/overview/changelog/2021/1/5.md)
- [Microsoft Connected Accounts](https://developer.close.com/api/overview/changelog/2020/10/29.md)
- [Send As API](https://developer.close.com/api/overview/changelog/2020/10/9.md)
- [Active Calls on the Users Availability API](https://developer.close.com/api/overview/changelog/2020/10/3.md)
- [New URL for the Custom Field API](https://developer.close.com/api/overview/changelog/2020/9/18.md)
- [Groups](https://developer.close.com/api/overview/changelog/2020/8/13.md)
- [Custom Activities Beta](https://developer.close.com/api/overview/changelog/2020/8/7.md)
- [Connected Accounts and clarification on field usage in integrations](https://developer.close.com/api/overview/changelog/2020/6/30.md)
- [HTTP/2 and Header Casing](https://developer.close.com/api/overview/changelog/2020/5/19.md)
- [Custom Field Description](https://developer.close.com/api/overview/changelog/2020/4/30.md)
- [Custom Fields on Contacts](https://developer.close.com/api/overview/changelog/2020/4/6.md)
- [Introducing Pipelines](https://developer.close.com/api/overview/changelog/2019/12/10.md)
- [Deprecate old Activity Report endpoint](https://developer.close.com/api/overview/changelog/2019/11/13.md)
- [Deprecate setting a status on an Opportunity via the status field](https://developer.close.com/api/overview/changelog/2019/10/31.md)
- [Add new endpoint for Meeting activities](https://developer.close.com/api/overview/changelog/2019/10/12.md)
- [POST HTTP Status Code](https://developer.close.com/api/overview/changelog/2019/8/20.md)
- [Add multiple value support to the bulk edit action](https://developer.close.com/api/overview/changelog/2019/7/2.md)
- [Add event filtering to webhook subscriptions](https://developer.close.com/api/overview/changelog/2019/6/18.md)
- [Add API key ID to events](https://developer.close.com/api/overview/changelog/2019/5/10.md)
- [Add new activity report endpoint](https://developer.close.com/api/overview/changelog/2019/5/8.md)
- [Support for Multi-Select Custom Fields](https://developer.close.com/api/overview/changelog/2019/4/25.md)
- [All exports are now compressed with GZIP](https://developer.close.com/api/overview/changelog/2019/4/9.md)
- [Drop the field plan_type from the `Membership` API](https://developer.close.com/api/overview/changelog/2019/3/7.md)
- [New Base URL](https://developer.close.com/api/overview/changelog/2019/2/22.md)
- [Additional country fields](https://developer.close.com/api/overview/changelog/2019/2/18.md)
- [Event Log Fields](https://developer.close.com/api/overview/changelog/2019/1/25.md)
- [Webhooks Subscription API](https://developer.close.com/api/overview/changelog/2018/11/28.md)