Merge branch 'main' into copilot/update-sessions-hover

Author: dmitrivMS

.github/workflows/chat-perf.yml

@@ -255,7 +255,7 @@ jobs:
           name: build-output
 
       - name: Restore Electron cache
-        uses: actions/cache/restore@caa296126883cff596d87d8935842f9db880ef25 # v5.1.0
+        uses: actions/cache/restore@55cc8345863c7cc4c66a329aec7e433d2d1c52a9 # v6.1.0
         with:
           path: ~/.cache/electron
           key: electron-${{ runner.os }}-${{ hashFiles('.nvmrc', 'package.json') }}
@@ -264,7 +264,7 @@ jobs:
         run: node build/lib/preLaunch.ts
 
       - name: Restore Playwright cache
-        uses: actions/cache/restore@caa296126883cff596d87d8935842f9db880ef25 # v5.1.0
+        uses: actions/cache/restore@55cc8345863c7cc4c66a329aec7e433d2d1c52a9 # v6.1.0
         with:
           path: ~/.cache/ms-playwright
           key: playwright-${{ runner.os }}-${{ hashFiles('package.json') }}
@@ -437,7 +437,7 @@ jobs:
           name: build-output
 
       - name: Restore Electron cache
-        uses: actions/cache/restore@caa296126883cff596d87d8935842f9db880ef25 # v5.1.0
+        uses: actions/cache/restore@55cc8345863c7cc4c66a329aec7e433d2d1c52a9 # v6.1.0
         with:
           path: ~/.cache/electron
           key: electron-${{ runner.os }}-${{ hashFiles('.nvmrc', 'package.json') }}
@@ -446,7 +446,7 @@ jobs:
         run: node build/lib/preLaunch.ts
 
       - name: Restore Playwright cache
-        uses: actions/cache/restore@caa296126883cff596d87d8935842f9db880ef25 # v5.1.0
+        uses: actions/cache/restore@55cc8345863c7cc4c66a329aec7e433d2d1c52a9 # v6.1.0
         with:
           path: ~/.cache/ms-playwright
           key: playwright-${{ runner.os }}-${{ hashFiles('package.json') }}

.github/workflows/copilot-setup-steps.yml

@@ -104,7 +104,7 @@ jobs:
 
       - name: Restore built-in extensions cache
         id: cache-builtin-extensions
-        uses: actions/cache/restore@caa296126883cff596d87d8935842f9db880ef25 # v5.1.0
+        uses: actions/cache/restore@55cc8345863c7cc4c66a329aec7e433d2d1c52a9 # v6.1.0
         with:
           enableCrossOsArchive: true
           path: .build/builtInExtensions

.github/workflows/pr-darwin-test.yml

@@ -89,7 +89,7 @@ jobs:
 
       - name: Restore built-in extensions cache
         id: cache-builtin-extensions
-        uses: actions/cache/restore@caa296126883cff596d87d8935842f9db880ef25 # v5.1.0
+        uses: actions/cache/restore@55cc8345863c7cc4c66a329aec7e433d2d1c52a9 # v6.1.0
         with:
           enableCrossOsArchive: true
           path: .build/builtInExtensions

.github/workflows/pr-linux-test.yml

@@ -122,7 +122,7 @@ jobs:
 
       - name: Restore built-in extensions cache
         id: cache-builtin-extensions
-        uses: actions/cache/restore@caa296126883cff596d87d8935842f9db880ef25 # v5.1.0
+        uses: actions/cache/restore@55cc8345863c7cc4c66a329aec7e433d2d1c52a9 # v6.1.0
         with:
           enableCrossOsArchive: true
           path: .build/builtInExtensions

.github/workflows/pr-win32-test.yml

@@ -96,7 +96,7 @@ jobs:
 
       - name: Restore built-in extensions cache
         id: cache-builtin-extensions
-        uses: actions/cache/restore@caa296126883cff596d87d8935842f9db880ef25 # v5.1.0
+        uses: actions/cache/restore@55cc8345863c7cc4c66a329aec7e433d2d1c52a9 # v6.1.0
         with:
           enableCrossOsArchive: true
           path: .build/builtInExtensions

.github/workflows/pr.yml

@@ -74,7 +74,7 @@ jobs:
 
       - name: Restore built-in extensions cache
         id: cache-builtin-extensions
-        uses: actions/cache/restore@caa296126883cff596d87d8935842f9db880ef25 # v5.1.0
+        uses: actions/cache/restore@55cc8345863c7cc4c66a329aec7e433d2d1c52a9 # v6.1.0
         with:
           enableCrossOsArchive: true
           path: .build/builtInExtensions
@@ -284,7 +284,7 @@ jobs:
           node-version-file: extensions/copilot/.nvmrc
 
       - name: Setup Python
-        uses: actions/setup-python@ece7cb06caefa5fff74198d8649806c4678c61a1 # v6.3.0
+        uses: actions/setup-python@5fda3b95a4ea91299a34e894583c3862153e4b97 # v7.0.0
         with:
           python-version: '3.12'
           architecture: 'x64'
@@ -378,7 +378,7 @@ jobs:
           node-version-file: extensions/copilot/.nvmrc
 
       - name: Setup Python
-        uses: actions/setup-python@ece7cb06caefa5fff74198d8649806c4678c61a1 # v6.3.0
+        uses: actions/setup-python@5fda3b95a4ea91299a34e894583c3862153e4b97 # v7.0.0
         with:
           python-version: '3.12'
           architecture: 'x64'

build/lib/policies/policyData.jsonc

@@ -734,6 +734,50 @@
             "default": true,
             "included": true
         },
+        {
+            "key": "dictation.experimental.llmCleanup",
+            "name": "DictationLLMCleanup",
+            "category": "InteractiveSession",
+            "minimumVersion": "1.136",
+            "localization": {
+                "description": {
+                    "key": "dictation.experimental.llmCleanup.policy",
+                    "value": "Controls whether final dictation transcripts are sent to a language model for cleanup."
+                }
+            },
+            "type": "boolean",
+            "default": true,
+            "included": true
+        },
+        {
+            "key": "dictation.model",
+            "name": "DictationModel",
+            "category": "InteractiveSession",
+            "minimumVersion": "1.136",
+            "localization": {
+                "description": {
+                    "key": "dictation.model.policy",
+                    "value": "Controls the transcription model used for dictation."
+                },
+                "enumDescriptions": [
+                    {
+                        "key": "dictation.model.nemotronMultilingual.policy",
+                        "value": "Use the on-device transcription model. Audio does not leave the device."
+                    },
+                    {
+                        "key": "dictation.model.mai.policy",
+                        "value": "Use the cloud transcription service. Audio is streamed to the service."
+                    }
+                ]
+            },
+            "type": "string",
+            "default": "nemotron-3.5-asr-streaming-0.6b",
+            "enum": [
+                "nemotron-3.5-asr-streaming-0.6b",
+                "mai"
+            ],
+            "included": true
+        },
         {
             "key": "extensions.allowed",
             "name": "AllowedExtensions",

build/linux/rpm/dep-lists.ts

@@ -81,6 +81,7 @@ export const referenceGeneratedDepsByArch = {
 		'libgtk-3.so.0()(64bit)',
 		'libm.so.6()(64bit)',
 		'libm.so.6(GLIBC_2.2.5)(64bit)',
+		'libm.so.6(GLIBC_2.27)(64bit)',
 		'libnspr4.so()(64bit)',
 		'libnss3.so()(64bit)',
 		'libnss3.so(NSS_3.11)(64bit)',
@@ -275,6 +276,7 @@ export const referenceGeneratedDepsByArch = {
 		'libgtk-3.so.0()(64bit)',
 		'libm.so.6()(64bit)',
 		'libm.so.6(GLIBC_2.17)(64bit)',
+		'libm.so.6(GLIBC_2.27)(64bit)',
 		'libnspr4.so()(64bit)',
 		'libnss3.so()(64bit)',
 		'libnss3.so(NSS_3.11)(64bit)',

extensions/copilot/assets/prompts/skills/agent-customization/references/agents.md

@@ -17,6 +17,7 @@ description: "<required>"    # For agent picker and subagent discovery
 name: "Agent Name"           # Optional, defaults to filename
 tools: [search, web]         # Optional: aliases, MCP (<server>/*), extension tools
 model: "Claude Sonnet 4"     # Optional, uses picker default; supports array for fallback
+reasoning-effort: "high"     # Optional: low, medium, high, xhigh, or max
 argument-hint: "Task..."     # Optional, input guidance
 agents: [agent1, agent2]     # Optional, restrict allowed subagents by name (omit = all, [] = none)
 user-invocable: true         # Optional, show in agent picker (default: true)
@@ -45,6 +46,16 @@ hooks:                       # Optional, inline hooks for this agent's lifecycle
 model: ['Claude Sonnet 4.5 (copilot)', 'GPT-5 (copilot)']  # First available model is used
 ```
 
+### Reasoning Effort
+
+Use `reasoning-effort` to set the reasoning level for the custom agent's model:
+
+```yaml
+reasoning-effort: high  # low, medium, high, xhigh, or max
+```
+
+The selected model must support the configured level. If omitted, the runtime resolves the effort from the model configuration and, when applicable, the parent agent.
+
 ## Tools
 
 Sources: built-in aliases, specific tools, MCP servers (`<server>/*`), extension tools.

extensions/copilot/src/extension/conversation/vscode-node/languageModelAccess.ts

@@ -156,8 +156,10 @@ function buildConfigurationSchema(endpoint: IChatEndpoint, autoTiersEnabled: boo
 	return { configurationSchema: { properties } };
 }
 
+const DICTATION_CLEANUP_NANO_ALIAS = 'copilot-dictation-cleanup-nano';
 const DICTATION_CLEANUP_LUNA_ALIAS = 'copilot-dictation-cleanup-luna';
-const utilityAliasFamilies: readonly ChatEndpointFamily[] = ['copilot-utility-small', 'copilot-utility', DICTATION_CLEANUP_LUNA_ALIAS];
+const dictationCleanupAliases: ReadonlySet<string> = new Set([DICTATION_CLEANUP_NANO_ALIAS, DICTATION_CLEANUP_LUNA_ALIAS]);
+const utilityAliasFamilies: readonly ChatEndpointFamily[] = ['copilot-utility-small', 'copilot-utility', DICTATION_CLEANUP_NANO_ALIAS, DICTATION_CLEANUP_LUNA_ALIAS];
 
 /**
  * Builds the {@link vscode.LanguageModelChatInformation} entry that publishes a
@@ -544,7 +546,7 @@ export class LanguageModelAccess extends Disposable implements IExtensionContrib
 		progress: vscode.Progress<vscode.LanguageModelResponsePart2>,
 		token: vscode.CancellationToken
 	): Promise<void> {
-		if (model.id === DICTATION_CLEANUP_LUNA_ALIAS && options.requestInitiator !== 'core') {
+		if (dictationCleanupAliases.has(model.id) && options.requestInitiator !== 'core') {
 			throw new Error(`Model ${model.id} is only available to VS Code core.`);
 		}
 		let endpoint = await this._getEndpointForModel(model, buildAutoRoutingContext(messages, options));