> For the complete documentation index, see [llms.txt](https://docs.tsgglobal.com/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://docs.tsgglobal.com/changelog.md). # Changelog Dated log of changes to the TSG Global APIs and to this documentation. Newest first. This log starts on 2026-09-11; API changes before that date were not recorded here. ## 2026-09-11: documentation * New pages: [API Quick Reference](/api-quick-reference.md), [AI Assistants & MCP](/ai-assistants-and-mcp.md) and this changelog. * An OpenAPI 3.1 description of the REST APIs (SMS, MMS, MMS templates, number configuration) is published in GitBook as `tsg-global-rest`; see OpenAPI Specification. * Corrections: `PSTN` (not `PTSN`) in the Destination Priority examples; the staging MMS-over-SMTP section no longer repeats the SMPP settings; the inbound SMS webhook page now names the real `webhook_url` field; the `unauthenticated` error type definition; invalid JSON in the Receive an SMS Message example; placeholder responses on Send an MMS Message, Disable SMS and Disable MMS replaced with real ones; the MMS Templates quickstart code restored to readable blocks; the template example without placeholders now shows an empty placeholder list; nested code fences fixed on Receive DLRs, Get Number Information and List Destination Priority; the stray scheduling hint removed from Delete Destination Priority; Get Count of CDR Records now explains how to count; typos on the Verified Sender and Short Code pages. * Every page now carries a description, which also improves `llms.txt` and MCP search results. ## Known gaps * Production SMPP hostname and per-account rate limits are not published; contact .