Add extendedMarkdown text format value#615
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Pull request overview
This PR extends the API’s TextFormat type to support an additional 'extendedMarkdown' value, enabling richer message rendering scenarios while updating docs, tests, and the echo example to demonstrate usage.
Changes:
- Added
'extendedMarkdown'to theTextFormatunion type. - Updated
IMessageActivity,MessageActivity, andwithTextFormat()JSDoc to document the new value. - Added a unit test for
withTextFormat('extendedMarkdown')and updated the echo sample to reply with extended markdown content when prompted.
Reviewed changes
Copilot reviewed 4 out of 4 changed files in this pull request and generated no comments.
| File | Description |
|---|---|
| packages/api/src/models/text-format.ts | Extends the TextFormat union to include 'extendedMarkdown'. |
| packages/api/src/activities/message/message.ts | Updates JSDoc to document the new textFormat value across interface/class/method docs. |
| packages/api/src/activities/message/message.spec.ts | Adds unit test coverage for setting extendedMarkdown via withTextFormat(). |
| examples/echo/src/index.ts | Demonstrates replying with extendedMarkdown content when the incoming message includes “extended”. |
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arun2k17
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heyitsaamir
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corinagum
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Jun 12, 2026
Add 'extendedmarkdown' to the TextFormat union type to support rich content rendering (GFM tables, LaTeX math). Updates JSDoc comments, adds unit test, and updates echo sample to demonstrate the feature. Co-Authored-By: Claude Opus 4.6 (1M context) <[email protected]>
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Add 'extendedmarkdown' to the TextFormat union type to support rich content rendering (GFM tables, LaTeX math). Updates JSDoc comments, adds unit test, and adds formatted-messaging sample demonstrating markdown, extendedmarkdown, xml, and plain text formats. Co-Authored-By: Claude Opus 4.6 (1M context) <[email protected]>
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## Release v2.0.14
Prepares the stable **2.0.14** release by merging `main` into `release`
and setting `version.json` to the stable version (removing the
`-preview.{height}` suffix).
- Previous release: `2.0.13` (published 2026-06-15)
- Only functional diff vs `main` is `version.json`:
`2.0.14-preview.{height}` → `2.0.14`
## What's in this release
### 🚀 Features
* Flatten client method chains to reduce call hops by @lilyydu in
#634
* Support resetting response streams and streaming error handling by
@lilyydu in #635
* Add `extendedMarkdown` text format value by @singhk97 in
#615
### 🐛 Fixes
* Set `replyToId` for all streaming activities by @lilyydu in
#646
* Use `artifactName` for pipelineArtifact inputs in publish pipeline by
@corinagum in #625
### ♻️ Refactors
* Move `apps` from file-based mixins to real classes by @heyitsaamir in
#633
* Split up Outbound and Inbound Activities by @heyitsaamir in
#639
* Remove `ExperimentalTeamsQuotedReplies` markers by @corinagum in
#621
### 🧪 Tests
* Add integration tests for Teams TypeScript SDK by @corinagum in
#622
### 📚 Docs & Examples
* Migrate examples to the flattened conversation API by @lilyydu in
#637
* Note npm CFS proxy for Microsoft-managed devices by @corinagum in
#638
* Update integration test runbook link to ADO wiki by @corinagum in
#624
### 🔧 Chores & Dependencies
* Bump version to 2.0.14-preview and fix pipeline release job by
@corinagum in #620
* Bump hono from 4.12.21 to 4.12.25 by @dependabot in
#623
* Bump react-router from 7.15.0 to 7.15.1 by @dependabot in
#619
* Bump vite from 6.4.2 to 6.4.3 by @dependabot in
#617
**Full Changelog**:
v2.0.13...prep-release/2.0.14
### After merge
1. Trigger the [release
pipeline](https://dev.azure.com/DomoreexpGithub/Github_Pipelines/_build?definitionId=52&_a=summary)
on `release` with **Public** publish type
2. Bump `main` → `2.0.15-preview.{height}`
3. Create the `v2.0.14` git tag + GitHub Release
Co-authored-by: Copilot <[email protected]>
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Summary
'extendedmarkdown'to theTextFormatunion type for rich content rendering (GFM tables, LaTeX math)TextFormattypewithTextFormat('extendedmarkdown')formatted-messagingsample demonstrating all text formats: markdown, extendedmarkdown, xml, and plainTest plan
message.spec.ts— 31/31)formatted-messagingsample builds cleanScreenshots