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2026.8.2

UNITRONIX/BetterDesk2026.8.2Sep 1, 2026by devlikepro

AI Summary

This release introduces new API endpoints for sending stickers and managing group security, alongside enhanced observability tools like OpenTelemetry and Prometheus metrics. It also adds granular media download controls and app management features.

Key Highlights

  • New API for sending WebP stickers
  • Granular media download control for events and API
  • Groups API for membership approval and join requests
  • OpenTelemetry tracing support
  • Prometheus metrics endpoint

New Features

  • POST /api/sendSticker endpoint
  • GET/PUT /api/{session}/groups/{id}/settings/security/membership-approval
  • GET /api/{session}/groups/{id}/participants/join-requests
  • OpenTelemetry trace context integration
  • Brazilian Phone Numbers app with 9th digit resolution
  • App purge API

Full Release Notes

**Full Changelog**: https://github.com/devlikeapro/waha/compare/2026.8.1...2026.8.2


🆕 **New**

-   `2026.8.2` - API - `POST /api/sendSticker` - send stickers (WebP) - [**📤 Send messages**](https://waha.devlike.pro/docs/how-to/send-messages/#send-sticker) - [#1287](https://github.com/devlikeapro/waha/issues/1287), [#2240](https://github.com/devlikeapro/waha/pull/2240)
-   `2026.8.2` - Media - granular download control for events and API - [**⚙️ Configuration**](https://waha.devlike.pro/docs/how-to/config/#media-download) - [#2211](https://github.com/devlikeapro/waha/pull/2211)
-   `2026.8.2` - Groups - approve new members setting - `GET/PUT /api/{session}/groups/{id}/settings/security/membership-approval` - [**👥 Groups**](https://waha.devlike.pro/docs/how-to/groups/#security---approve-new-members) - [#2200](https://github.com/devlikeapro/waha/pull/2200)
-   `2026.8.2` - Groups - join requests API - `GET /api/{session}/groups/{id}/participants/join-requests` + `/approve` and `/reject` - [**👥 Groups**](https://waha.devlike.pro/docs/how-to/groups/#join-requests)
-   `2026.8.2` - Groups - `group.v2.participants.join-request` event - a request to join a group is created, rejected or revoked - [**👥 Groups**](https://waha.devlike.pro/docs/how-to/groups/#groupv2participantsjoin-request)
-   `2026.8.2` - OpenTelemetry trace context - `trace_id`/`span_id` in logs, `traceparent` response header, no export by default - [**🔍 Observability**](https://waha.devlike.pro/docs/how-to/observability/#tracing)
-   `2026.8.2` - Prometheus metrics - `GET /metrics` (optional) - [**🔍 Observability**](https://waha.devlike.pro/docs/how-to/observability/#prometheus-metrics) - [#2245](https://github.com/devlikeapro/waha/pull/2245)
-   `2026.8.2` - Docs - how to extend WAHA with apps, modules and session plugins - [**🛠️ Development**](https://waha.devlike.pro/docs/how-to/development/#extending-waha)

🧩 **Apps**

-   `2026.8.2` - [**Brazilian Phone Numbers**](https://waha.devlike.pro/docs/apps/brazilian-phone-numbers/) - resolves the 9th digit for Brazilian numbers - [#2180](https://github.com/devlikeapro/waha/pull/2180)
-   `2026.8.2` - Purge API - `POST /api/apps/{id}/purge` - delete the app’s stored data, keep the app configured - [**🧩 Apps**](https://waha.devlike.pro/docs/apps/about/#purge-app-storage)
-   `2026.8.2` - Logout purge - `POST /api/sessions/{session}/logout` accepts `{"apps": {"purge": true}}` to purge apps’ storage on logout
-   `2026.8.2` - Unique apps - one instance per session for **ChatWoot**, **Reject Calls** and **Brazilian Phone Numbers**

🧩 **ChatWoot**

-   `2026.8.2` - match existing contacts by resolved phone number for `@lid` chats and backfill missing `phone_number` - [#2208](https://github.com/devlikeapro/waha/issues/2208)
-   `2026.8.2` - name LID contacts by push name instead of raw `@lid` id - [#1493](https://github.com/devlikeapro/waha/pull/1493)

🛠️ **Fixes**

-   `2026.8.2` - **WEBJS**, **NOWEB** - Channels - `reply_to` was silently ignored when sending messages to channels - [#2233](https://github.com/devlikeapro/waha/issues/2233)
-   `2026.8.2` - **WEBJS** - Channels - deleting a message in a channel failed - [#2236](https://github.com/devlikeapro/waha/issues/2236)
-   `2026.8.2` - **WEBJS** - first incoming message triggered events 2-3 times - [#2235](https://github.com/devlikeapro/waha/issues/2235)
-   `2026.8.2` - **GOWS** - `fromMe` messages mirrored to the wrong contact/conversation - [#2241](https://github.com/devlikeapro/waha/issues/2241)
-   `2026.8.2` - **GOWS** - unable to retrieve WhatsApp groups - [#2234](https://github.com/devlikeapro/waha/issues/2234)
-   `2026.8.2` - **GOWS** - group messages carrying a new sender key in `@lid` groups were silently lost - [#2242](https://github.com/devlikeapro/waha/issues/2242)
-   `2026.8.2` - **GOWS** - undecryptable messages are logged at `error` level instead of being silently dropped
-   `2026.8.2` - Media - keep the original `.zip` for Lottie stickers when converting to an image fails - #2239
-   `2026.8.2` - Media - `downloadMedia=true` downloads media even when disabled by env vars - [#2211](https://github.com/devlikeapro/waha/issues/2211)
-   `2026.8.2` - Media - `media` attrs (`mimetype`, `filename`) always set; `url: null` when not downloaded
-   `2026.8.2` - honor `HTTP_PROXY`/`HTTPS_PROXY`/`NO_PROXY` env vars when downloading media - [#2224](https://github.com/devlikeapro/waha/pull/2224)

📊 **Dashboard**

-   `2026.8.2` - up dashboard

⚙️ **Updates**

-   `2026.8.2` - **WPP** - up engine
-   `2026.8.2` - up `axios` to `1.19.0`