diff --git a/AGENTS.md b/AGENTS.md
index 7bd570b..808e4a6 100644
--- a/AGENTS.md
+++ b/AGENTS.md
@@ -17,7 +17,7 @@
 ## API
 
 1. **Live base URL** — `http://bot.dev.kkhost.pl` (Traefik → docker-compose stack on this host; container port 3000 via external network dev_net, no published ports).
-2. **Endpoints** — all under the `/api` global prefix: `GET /api/status` (`{ connected, myNodeNum, host, port }`), `POST /api/send` (body `{ "text": "...", "to"?: <node number | node name | "!b" | "broadcast"> }` — numbers pass through as-is (integer 1..0xffffffff), names resolve like `GET /api/nodes/:id`, omitted/""/"!b"/"broadcast" → broadcast; unknown or ambiguous targets are a 400. Returns `{ id }`), `GET /api/channels` (the device's Meshtastic channels as `{ index, name, uplinkEnabled, downlinkEnabled }[]`; psk/keys redacted), `GET /api/messages` (message history newest first: rx text with `from`, tx sends with `to` + `status` pending→delivered/failed via routing ACKs — broadcasts stay pending because firmware strips want_ack; last 100, in-memory, reset on reconnect), `GET /api/nodes` (known nodes sorted by num as `{ num, longName?, shortName?, hwModel?, batteryLevel?, lastHeard: number|null, position?: { lat, lon, alt? } }[]`, from the initial sync plus live POSITION_APP updates; reset on reconnect) and `GET /api/nodes/:id` (lookup by exact node number/numeric string, then case-insensitive exact long/short name, else unique substring; 404 when ambiguous or missing). Scalar API docs are served at `/` (OpenAPI JSON at `/docs-json`). Keep this list in sync with the controller. All `POST /api/send` traffic targets channel index 2 (`testowy`) on purpose — never the primary channel; override via `MESH_SEND_CHANNEL` (default `2`).
+2. **Endpoints** — all under the `/api` global prefix: `GET /api/status` (`{ connected, myNodeNum, host, port }`), `POST /api/send` (body `{ "text": "...", "to"?: <node number | node name | "!b" | "broadcast"> }` — numbers pass through as-is (integer 1..0xffffffff), names resolve like `GET /api/nodes/:id`, omitted/""/"!b"/"broadcast" → broadcast; unknown or ambiguous targets are a 400. Returns `{ id }`), `GET /api/channels` (the device's Meshtastic channels as `{ index, name, uplinkEnabled, downlinkEnabled }[]`; psk/keys redacted), `GET /api/messages` (message history newest first: rx text with `from`, tx sends with `to` + `status` pending→delivered/failed via routing ACKs — broadcasts stay pending because firmware strips want_ack; last 100, in-memory, reset on reconnect), `GET /api/nodes` (known nodes sorted by num as `{ num, longName?, shortName?, hwModel?, batteryLevel?, lastHeard: number|null, position?: { lat, lon, alt? } }[]`, from the initial sync plus live POSITION_APP updates; reset on reconnect) and `GET /api/nodes/:id` (lookup by exact node number/numeric string, then case-insensitive exact long/short name, else unique substring; 404 when ambiguous or missing). Scalar API docs are served at `/` (OpenAPI JSON at `/docs-json`). Keep this list in sync with the controller. All `POST /api/send` traffic targets channel index 3 (`test`) on purpose — never the primary channel; override via `MESH_SEND_CHANNEL` (default `3`).
 
 ## Other
 
diff --git a/CHANGELOG.md b/CHANGELOG.md
index 10d1986..26da020 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -1,5 +1,9 @@
 # Changelog
 
+## v0.5.0 — 2026-09-24 17:37
+
+- Publishing channel moved from `testowy` (index 2) to the new `test` channel (index 3); `MESH_SEND_CHANNEL` default is now `3`. All docs/comments referencing the old pinning updated accordingly.
+
 ## v0.4.0 — 2026-09-24 14:39
 
 - `POST /api/send` now accepts node names and explicit broadcast sentinels in `to`: omitted/"" or `"!b"`/`"broadcast"` (case-insensitive, trimmed) → broadcast address `0xffffffff`; numbers pass through as-is (must be an integer in 1..0xffffffff); numeric strings are parsed the same way; anything else is looked up by name via the existing node DB lookup (exact long/short name, then unique substring). Unknown or ambiguous targets are a 400 with `no node matching '<to>'`. New service method `MeshService.resolveDest(to?)` does the resolution — `sendText()` keeps its resolved-number signature.
diff --git a/README.md b/README.md
index c6a30d6..4da8da3 100644
--- a/README.md
+++ b/README.md
@@ -50,7 +50,7 @@ broadcast address `0xffffffff`; anything else is a node number or name.
 DMs are unicast and wantAck-tracked via `GET /api/messages`; broadcasts stay
 pending because firmware strips want_ack before TX.
 
-All sends always target channel index 2 (`testowy`) — never the primary
+All sends always target channel index 3 (`test`) — never the primary
 channel. Override with `MESH_SEND_CHANNEL`.
 
 ## Env vars
@@ -58,7 +58,7 @@ channel. Override with `MESH_SEND_CHANNEL`.
 - `MESH_HOST` (default `192.168.1.4`) — bridge host
 - `MESH_PORT` (default `4403`) — bridge port
 - `MESH_RECONNECT_MS` (default `5000`) — reconnect interval in ms
-- `MESH_SEND_CHANNEL` (default `2`) — channel index all sends target (`testowy`; never the primary channel)
+- `MESH_SEND_CHANNEL` (default `3`) — channel index all sends target (`test`; never the primary channel)
 - `PORT` (default `3000`) — HTTP listen port
 
 Note: the serial bridge accepts only ONE client at a time — if another app is
diff --git a/package.json b/package.json
index aa35731..d5bf830 100644
--- a/package.json
+++ b/package.json
@@ -1,6 +1,6 @@
 {
   "name": "mesh-bot",
-  "version": "0.4.0",
+  "version": "0.5.0",
   "description": "",
   "author": "",
   "private": true,
diff --git a/src/mesh/mesh.controller.ts b/src/mesh/mesh.controller.ts
index f068a51..884df12 100644
--- a/src/mesh/mesh.controller.ts
+++ b/src/mesh/mesh.controller.ts
@@ -57,7 +57,7 @@ export class MeshController {
   @ApiOperation({
     summary: 'Send a text message over the mesh',
     description:
-      'Queues a TEXT_MESSAGE_APP packet to the resolved target (node number, node name, or broadcast). DMs are unicast and wantAck-tracked via GET /api/messages; broadcasts stay pending because firmware strips want_ack. All sends ride the pinned test channel (index 2, "testowy" — never the primary channel) regardless of DM or broadcast, since modern firmware PKI handles unicast encryption/channel anyway. Returns the Meshtastic packet id.',
+      'Queues a TEXT_MESSAGE_APP packet to the resolved target (node number, node name, or broadcast). DMs are unicast and wantAck-tracked via GET /api/messages; broadcasts stay pending because firmware strips want_ack. All sends ride the pinned test channel (index 3, "test" — never the primary channel) regardless of DM or broadcast, since modern firmware PKI handles unicast encryption/channel anyway. Returns the Meshtastic packet id.',
   })
   @ApiResponse({
     status: 200,
@@ -93,8 +93,8 @@ export class MeshController {
     example: [
       { index: 0, name: 'Default', uplinkEnabled: true, downlinkEnabled: true },
       {
-        index: 2,
-        name: 'testowy',
+        index: 3,
+        name: 'test',
         uplinkEnabled: false,
         downlinkEnabled: false,
       },
@@ -118,8 +118,8 @@ export class MeshController {
         id: 456789,
         dir: 'tx',
         to: 42,
-        text: 'hello testowy',
-        channel: 2,
+        text: 'hello test',
+        channel: 3,
         at: 1758000123456,
         status: 'delivered',
       },
diff --git a/src/mesh/mesh.service.spec.ts b/src/mesh/mesh.service.spec.ts
index 659d957..be99a8c 100644
--- a/src/mesh/mesh.service.spec.ts
+++ b/src/mesh/mesh.service.spec.ts
@@ -295,11 +295,11 @@ describe('MeshService connect', () => {
 });
 
 describe('MeshService send', () => {
-  it('sends on the test channel (index 2) by default, never primary', async () => {
+  it('sends on the test channel (index 3) by default, never primary', async () => {
     const bridge = await startBridge();
     process.env.MESH_HOST = '127.0.0.1';
     process.env.MESH_PORT = String(bridge.port);
-    delete process.env.MESH_SEND_CHANNEL; // default path: "testowy" (index 2)
+    delete process.env.MESH_SEND_CHANNEL; // default path: "test" (index 3)
     const svc = new MeshService();
     try {
       svc.onModuleInit();
@@ -309,7 +309,7 @@ describe('MeshService send', () => {
 
       const out: Uint8Array[] = [];
       bridge.sockets[0].on('data', (c) => out.push(c));
-      const id = await svc.sendText(42, 'hello testowy');
+      const id = await svc.sendText(42, 'hello test');
       expect(id).toBeGreaterThan(0);
 
       const readOutbound = (): P.Mesh.MeshPacket | undefined => {
@@ -331,7 +331,7 @@ describe('MeshService send', () => {
 
       await waitFor(() => readOutbound() !== undefined);
       const pkt = readOutbound()!;
-      expect(pkt.channel).toBe(2); // "testowy" — never the primary channel (0)
+      expect(pkt.channel).toBe(3); // "test" — never the primary channel (0)
       expect(pkt.to).toBe(42);
       const decoded =
         pkt.payloadVariant?.case === 'decoded'
@@ -339,7 +339,7 @@ describe('MeshService send', () => {
           : undefined;
       expect(
         new TextDecoder().decode(decoded?.payload ?? new Uint8Array()),
-      ).toBe('hello testowy');
+      ).toBe('hello test');
     } finally {
       delete process.env.MESH_SEND_CHANNEL;
       svc.onModuleDestroy();
@@ -537,13 +537,13 @@ describe('MeshService message history', () => {
         () => bridge.sockets.length === 1 && svc.status().connected,
       );
 
-      const id = await svc.sendText(42, 'hello testowy');
+      const id = await svc.sendText(42, 'hello test');
       expect(svc.messages()[0]).toMatchObject({
         id,
         dir: 'tx',
         to: 42,
-        text: 'hello testowy',
-        channel: 2,
+        text: 'hello test',
+        channel: 3,
         status: 'pending',
       });
 
diff --git a/src/mesh/mesh.service.ts b/src/mesh/mesh.service.ts
index 72e57b4..53369c4 100644
--- a/src/mesh/mesh.service.ts
+++ b/src/mesh/mesh.service.ts
@@ -71,9 +71,9 @@ export class MeshService implements OnModuleInit, OnModuleDestroy {
     process.env.MESH_RECONNECT_MS ?? '5000',
     10,
   );
-  // sends are pinned to the test channel ("testowy", index 2) on purpose — never the primary channel
+  // sends are pinned to the test channel ("test", index 3) on purpose — never the primary channel
   private readonly sendChannel = parseInt(
-    process.env.MESH_SEND_CHANNEL ?? '2',
+    process.env.MESH_SEND_CHANNEL ?? '3',
     10,
   );