chore(release): v0.45.0-preview.0

docs/changelogs/preview.md

@@ -1,6 +1,6 @@
-# Preview release: v0.45.0-preview.0
+# Preview release: v0.44.0-preview.0
 
-Released: May 27, 2026
+Released: May 22, 2026
 
 Our preview release includes the latest, new, and experimental features. This
 release may not be as stable as our [latest weekly release](latest.md).
@@ -13,52 +13,208 @@ npm install -g @google/gemini-cli@preview
 
 ## Highlights
 
-- **Context Simplification:** Completed major architectural work to simplify and
-  optimize how the agent manages and processes session context.
-- **A2A Usage Metadata:** The Agent-to-Agent (A2A) interface now exposes
-  detailed usage metadata, providing better visibility into resource
-  consumption.
-- **Improved Routing:** Updated default auto-routing logic and added bypasses
-  for certain routing classifiers to prevent orphaned function response errors.
-- **Terminal Stability:** Fixed several issues affecting terminal environments,
-  including Termux relaunch loops and PTY resize errors.
-- **Security & Fixes:** Strengthened MCP list security and addressed issues with
-  session resumption and PTY environment signals.
+- **Simplified Modes:** Merged existing Auto modes into a single, unified Auto
+  mode for a more streamlined user experience.
+- **Enhanced Agent Registration:** Improved agent registration logic to
+  prioritize project-specific agents using a first-wins strategy.
+- **New Developer Skills:** Introduced `agent-tui` and `tui-tester` skills to
+  empower developers with better terminal UI testing and automation
+  capabilities.
+- **Expanded Editor Support:** Added support for Sublime Text and Emacs Client,
+  providing more flexibility for external editing tasks.
+- **Session Management:** Added new session invocation types
+  (`LocalSessionInvocation`, `RemoteSessionInvocation`) and improved context
+  recovery across sessions.
 
 ## What's Changed
 
-- chore(release): bump version to 0.45.0-nightly.20260521.g854f811be by
+- chore(release): bump version to 0.44.0-nightly.20260512.g022e8baef by
   @gemini-cli-robot in
-  [#27362](https://github.com/google-gemini/gemini-cli/pull/27362)
-- fix(cli): prevent Termux relaunch and resize remount loops by @saymanq in
-  [#27110](https://github.com/google-gemini/gemini-cli/pull/27110)
-- Feat/a2a expose usage metadata by @jvargassanchez-dot in
-  [#27288](https://github.com/google-gemini/gemini-cli/pull/27288)
-- feat(context): Complete simplification work. by @joshualitt in
-  [#27345](https://github.com/google-gemini/gemini-cli/pull/27345)
-- fix(core): force update_topic tool to execute sequentially by
-  @jvargassanchez-dot in
-  [#27357](https://github.com/google-gemini/gemini-cli/pull/27357)
-- Changelog for v0.44.0-preview.0 by @gemini-cli-robot in
-  [#27360](https://github.com/google-gemini/gemini-cli/pull/27360)
-- Changelog for v0.43.0 by @gemini-cli-robot in
-  [#27361](https://github.com/google-gemini/gemini-cli/pull/27361)
-- Revert "fix(core): prevent SIGHUP kills in PTY environments" by @bbiggs in
-  [#27401](https://github.com/google-gemini/gemini-cli/pull/27401)
-- fix(cli): filter internal session context from history during resumption by
+  [#26957](https://github.com/google-gemini/gemini-cli/pull/26957)
+- Changelog for v0.42.0 by @gemini-cli-robot in
+  [#26958](https://github.com/google-gemini/gemini-cli/pull/26958)
+- Refactor: Eliminate `no-unsafe-return` suppressions via strict type validation
+  by @M-DEV-1 in
+  [#20668](https://github.com/google-gemini/gemini-cli/pull/20668)
+- Changelog for v0.43.0-preview.0 by @gemini-cli-robot in
+  [#26959](https://github.com/google-gemini/gemini-cli/pull/26959)
+- feat(core): change agent registration to first-wins and prioritize project by
+  @adamfweidman in
+  [#26953](https://github.com/google-gemini/gemini-cli/pull/26953)
+- feat(cli): merge Auto modes into a single Auto mode by @DavidAPierce in
+  [#26714](https://github.com/google-gemini/gemini-cli/pull/26714)
+- fix(core): preserve OAuth refresh tokens during rotation and retrieval by
+  @cocosheng-g in
+  [#26924](https://github.com/google-gemini/gemini-cli/pull/26924)
+- fix(cli): allow keychain auth for --list-sessions and non-interactive mode by
+  @cocosheng-g in
+  [#26921](https://github.com/google-gemini/gemini-cli/pull/26921)
+- fix(core): handle EISDIR on virtual drives in memory discovery by @cocosheng-g
+  in [#26985](https://github.com/google-gemini/gemini-cli/pull/26985)
+- fix(cli): auto-approve shell redirections in AUTO_EDIT mode by @cocosheng-g in
+  [#27003](https://github.com/google-gemini/gemini-cli/pull/27003)
+- ci: suppress bot comments during standard triage maintenance by @cocosheng-g
+  in [#27006](https://github.com/google-gemini/gemini-cli/pull/27006)
+- fix(core): refresh MCP OAuth token usage after re-auth by @sahilkirad in
+  [#26312](https://github.com/google-gemini/gemini-cli/pull/26312)
+- fix(ui): clamped table column widths by @devr0306 in
+  [#26991](https://github.com/google-gemini/gemini-cli/pull/26991)
+- fix(core): isolate subagent thread context by @akh64bit in
+  [#26449](https://github.com/google-gemini/gemini-cli/pull/26449)
+- chore: add execution permission to scripts/review.sh by @scidomino in
+  [#27009](https://github.com/google-gemini/gemini-cli/pull/27009)
+- fix(core): made context files append instead of replace by @devr0306 in
+  [#26950](https://github.com/google-gemini/gemini-cli/pull/26950)
+- fix: add system PATH fallback for ripgrep resolution (#26777) by @cocosheng-g
+  in [#26868](https://github.com/google-gemini/gemini-cli/pull/26868)
+- chore: clean up launched memory features by @SandyTao520 in
+  [#26941](https://github.com/google-gemini/gemini-cli/pull/26941)
+- fix(core): throttle shell text output and bound live UI buffer by
+  @emersonbusson in
+  [#26955](https://github.com/google-gemini/gemini-cli/pull/26955)
+- fix(cli): don't crash when an @-mention captures a non-path blob by @ifitisit
+  in [#25980](https://github.com/google-gemini/gemini-cli/pull/25980)
+- fix(core): ensure stable fallback for restricted preview models by @galz10 in
+  [#26999](https://github.com/google-gemini/gemini-cli/pull/26999)
+- feat(core): expose RAG snippets to local log file for debugging by @spencer426
+  in [#27016](https://github.com/google-gemini/gemini-cli/pull/27016)
+- fix(acp/auth): prevent conflicting credentials on enterprise gateways and
+  support optional API keys natively by @sripasg in
+  [#27021](https://github.com/google-gemini/gemini-cli/pull/27021)
+- fix(core): respect NO_PROXY for network-based MCP servers by @cocosheng-g in
+  [#27012](https://github.com/google-gemini/gemini-cli/pull/27012)
+- fix(cli): resolve permission denied in sandbox on NixOS and other distros by
+  @cocosheng-g in
+  [#27004](https://github.com/google-gemini/gemini-cli/pull/27004)
+- fix(ui): preserve new line at the end of edit window by @devr0306 in
+  [#27057](https://github.com/google-gemini/gemini-cli/pull/27057)
+- fix(core): ensure Vertex AI sets hasAccessToPreviewModels and remove
+  aggressive 404 fallback revocation by @galz10 in
+  [#27067](https://github.com/google-gemini/gemini-cli/pull/27067)
+- fix(core): ensure stable admin settings comparison across IPC to prevent
+  restart loop by @DavidAPierce in
+  [#27066](https://github.com/google-gemini/gemini-cli/pull/27066)
+- fix(deps): update vulnerable dependencies by @scidomino in
+  [#27062](https://github.com/google-gemini/gemini-cli/pull/27062)
+- fix(core): resolve EISDIR errors during file processing (#21527) by @ProthamD
+  in [#27041](https://github.com/google-gemini/gemini-cli/pull/27041)
+- docs(extensions): clarify env var sanitization policy for MCP and ext… by
+  @galz10 in [#22854](https://github.com/google-gemini/gemini-cli/pull/22854)
+- fix(ui): add ENAMETOOLONG and ENOTDIR to exceptions for file parsing errors by
+  @devr0306 in [#27069](https://github.com/google-gemini/gemini-cli/pull/27069)
+- fix(cli): explicitly clear entrypoint when spawning sandbox container by
+  @cocosheng-g in
+  [#27059](https://github.com/google-gemini/gemini-cli/pull/27059)
+- docs: update sandbox image command by @sjhddh in
+  [#26774](https://github.com/google-gemini/gemini-cli/pull/26774)
+- fix(core): externalize https-proxy-agent to fix proxy support by @sotokisehiro
+  in [#26361](https://github.com/google-gemini/gemini-cli/pull/26361)
+- security: update dependencies to fix critical and high vulnerabilities by
+  @scidomino in [#27077](https://github.com/google-gemini/gemini-cli/pull/27077)
+- Fix/web fetch ctrl c abort by @ProthamD in
+  [#24320](https://github.com/google-gemini/gemini-cli/pull/24320)
+- fix(core): add aliases and thinking config for gemini-3.1 models by
+  @anishs1207 in
+  [#27007](https://github.com/google-gemini/gemini-cli/pull/27007)
+- fix(core): use hasAccessToPreview for auto model resolution and fix
+  disappearing models by @DavidAPierce in
+  [#27112](https://github.com/google-gemini/gemini-cli/pull/27112)
+- feat(core): add adk.agentSessionSubagentEnabled flag by @adamfweidman in
+  [#26947](https://github.com/google-gemini/gemini-cli/pull/26947)
+- fix(core): enforce compile-time exhaustiveness in content-utils by
+  @adamfweidman in
+  [#27207](https://github.com/google-gemini/gemini-cli/pull/27207)
+- feat(skills): add agent-tui and tui-tester skills by @adamfweidman in
+  [#27121](https://github.com/google-gemini/gemini-cli/pull/27121)
+- fix(context): Fix snapshot recovery across sessions. by @joshualitt in
+  [#26939](https://github.com/google-gemini/gemini-cli/pull/26939)
+- fix(core): add unit tests for stableStringify by @devr0306 in
+  [#27212](https://github.com/google-gemini/gemini-cli/pull/27212)
+- fix(core): prefer pwsh.exe over Windows PowerShell 5.1 (#25859) by @kaluchi in
+  [#25900](https://github.com/google-gemini/gemini-cli/pull/25900)
+- feat(core): add LocalSessionInvocation by @adamfweidman in
+  [#26665](https://github.com/google-gemini/gemini-cli/pull/26665)
+- refactor: decouple auto model description and configuration from
+  releaseChannel by @danielweis in
+  [#27227](https://github.com/google-gemini/gemini-cli/pull/27227)
+- fix(core): prevent isBinary false-positive on Windows PTY streams by
+  @TirthNaik-99 in
+  [#26565](https://github.com/google-gemini/gemini-cli/pull/26565)
+- fix(cli): Prevent unmapped keys in Vim Normal mode from inserting text into
+  prompt Input. by @Rajeshpatel07 in
+  [#25139](https://github.com/google-gemini/gemini-cli/pull/25139)
+- fix(a2a-server): Implement default policy loading for parity with CLI by
+  @kschaab in [#27073](https://github.com/google-gemini/gemini-cli/pull/27073)
+- feat(core): add RemoteSessionInvocation by @adamfweidman in
+  [#26937](https://github.com/google-gemini/gemini-cli/pull/26937)
+- fix: allow configured MCP servers in non-interactive mode by @cocosheng-g in
+  [#27215](https://github.com/google-gemini/gemini-cli/pull/27215)
+- fix(core): add exception handling to migrateFromFileStorage by @devr0306 in
+  [#27229](https://github.com/google-gemini/gemini-cli/pull/27229)
+- fix(cli): bundle ink worker-entry.js by @rmedranollamas in
+  [#27249](https://github.com/google-gemini/gemini-cli/pull/27249)
+- feat(core): wire AgentSession invocations into agent-tool by @adamfweidman in
+  [#26948](https://github.com/google-gemini/gemini-cli/pull/26948)
+- fix(core): prevent path traversal in custome command file injection by
+  @ompatel-aiml in
+  [#27234](https://github.com/google-gemini/gemini-cli/pull/27234)
+- fix(core): respect NO_PROXY in global fetch dispatcher by @cocosheng-g in
+  [#27216](https://github.com/google-gemini/gemini-cli/pull/27216)
+- fix(core): correctly handle nullable array types in MCP tools by @devr0306 in
+  [#27228](https://github.com/google-gemini/gemini-cli/pull/27228)
+- fix(cli): preserve proxy-agent named exports in ESM bundle by @ashishch432 in
+  [#27145](https://github.com/google-gemini/gemini-cli/pull/27145)
+- Proposal: deterministic encoding for child-process I/O by @kaluchi in
+  [#27247](https://github.com/google-gemini/gemini-cli/pull/27247)
+- feat(cli): add Sublime Text and Emacs Client editors, improve error messages
+  and documentation by @alberti42 in
+  [#21090](https://github.com/google-gemini/gemini-cli/pull/21090)
+- Changelog for v0.43.0-preview.1 by @gemini-cli-robot in
+  [#27297](https://github.com/google-gemini/gemini-cli/pull/27297)
+- fix(devtools): bundle devtools package to avoid resolution errors by
   @rmedranollamas in
-  [#27391](https://github.com/google-gemini/gemini-cli/pull/27391)
-- Update default auto routing by @DavidAPierce in
-  [#27071](https://github.com/google-gemini/gemini-cli/pull/27071)
-- fix(core): bypass routing classifiers to prevent orphaned function response
-  errors by @danielweis in
-  [#27389](https://github.com/google-gemini/gemini-cli/pull/27389)
-- fix(core): suppress PTY resize EBADF errors by @scidomino in
-  [#27461](https://github.com/google-gemini/gemini-cli/pull/27461)
-- fix(core): prevent blacklist bypass in mcp list by @ompatel-aiml in
-  [#27377](https://github.com/google-gemini/gemini-cli/pull/27377)
-- fix(cli): ignore unmapped vim normal keys by @MukundaKatta in
-  [#27102](https://github.com/google-gemini/gemini-cli/pull/27102)
+  [#27250](https://github.com/google-gemini/gemini-cli/pull/27250)
+- fix(cli): integrate PolicyEngine into ACP session to prevent deadlocks
+  (#23507) by @cocosheng-g in
+  [#27252](https://github.com/google-gemini/gemini-cli/pull/27252)
+- fix: robust ripgrep path resolution and 1p hermetic execution support by
+  @cocosheng-g in
+  [#27253](https://github.com/google-gemini/gemini-cli/pull/27253)
+- refactor: decouple stored session deletion from ChatRecordingService (#22920)
+  by @yuvrajangadsingh in
+  [#27039](https://github.com/google-gemini/gemini-cli/pull/27039)
+- fix(core): improve Alpine shell compatibility by @dibyx in
+  [#26770](https://github.com/google-gemini/gemini-cli/pull/26770)
+- fix(core): generalize MCP compliance fix for tool results by @cocosheng-g in
+  [#27045](https://github.com/google-gemini/gemini-cli/pull/27045)
+- fix(scripts): scrub CI env vars in dev to keep interactive mode by @Hashaam101
+  in [#27159](https://github.com/google-gemini/gemini-cli/pull/27159)
+- fix(core): Added date field for the GCal MCP by @devr0306 in
+  [#27251](https://github.com/google-gemini/gemini-cli/pull/27251)
+- fix(core): centralize path validation to prevent crashes from malformed
+  prompts by @cocosheng-g in
+  [#27211](https://github.com/google-gemini/gemini-cli/pull/27211)
+- fix(core): prevent SIGHUP kills in PTY environments (WSL2/Kitty/Alacritty) by
+  @ProthamD in [#27267](https://github.com/google-gemini/gemini-cli/pull/27267)
+- fix(core): dynamic fallback routing for exhausted quota models by @cocosheng-g
+  in [#27315](https://github.com/google-gemini/gemini-cli/pull/27315)
+- Auto detect pnpm global installation path for macOS and Windows by @tisonkun
+  in [#22748](https://github.com/google-gemini/gemini-cli/pull/22748)
+- fix(windows): resolve interactive shell arrow-key navigation on Windows by
+  @KumarADITHYA123 in
+  [#23505](https://github.com/google-gemini/gemini-cli/pull/23505)
+- ci: robust stale issue lifecycle and consolidated triage labels by
+  @cocosheng-g in
+  [#27015](https://github.com/google-gemini/gemini-cli/pull/27015)
+- fix(context): Ensure last message is processed. by @joshualitt in
+  [#27232](https://github.com/google-gemini/gemini-cli/pull/27232)
+- chore/release: bump version to 0.44.0-nightly.20260521.g57c42a5c4 by
+  @gemini-cli-robot in
+  [#27324](https://github.com/google-gemini/gemini-cli/pull/27324)
+- fix(ui): added volta to auto update check by @devr0306 in
+  [#27353](https://github.com/google-gemini/gemini-cli/pull/27353)
+- perf: optimize issue triage and lifecycle management by @cocosheng-g in
+  [#27346](https://github.com/google-gemini/gemini-cli/pull/27346)
 
 **Full Changelog**:
-https://github.com/google-gemini/gemini-cli/compare/v0.44.0-preview.0...v0.45.0-preview.0
+https://github.com/google-gemini/gemini-cli/compare/v0.43.0-preview.1...v0.44.0-preview.0

package-lock.json

@@ -1,12 +1,12 @@
 {
   "name": "@google/gemini-cli",
-  "version": "0.45.0-nightly.20260521.g854f811be",
+  "version": "0.45.0-preview.0",
   "lockfileVersion": 3,
   "requires": true,
   "packages": {
     "": {
       "name": "@google/gemini-cli",
-      "version": "0.45.0-nightly.20260521.g854f811be",
+      "version": "0.45.0-preview.0",
       "workspaces": [
         "packages/*"
       ],
@@ -18117,7 +18117,7 @@
     },
     "packages/a2a-server": {
       "name": "@google/gemini-cli-a2a-server",
-      "version": "0.45.0-nightly.20260521.g854f811be",
+      "version": "0.45.0-preview.0",
       "dependencies": {
         "@a2a-js/sdk": "0.3.11",
         "@google-cloud/storage": "^7.19.0",
@@ -18246,7 +18246,7 @@
     },
     "packages/cli": {
       "name": "@google/gemini-cli",
-      "version": "0.45.0-nightly.20260521.g854f811be",
+      "version": "0.45.0-preview.0",
       "license": "Apache-2.0",
       "dependencies": {
         "@agentclientprotocol/sdk": "^0.16.1",
@@ -18394,7 +18394,7 @@
     },
     "packages/core": {
       "name": "@google/gemini-cli-core",
-      "version": "0.45.0-nightly.20260521.g854f811be",
+      "version": "0.45.0-preview.0",
       "license": "Apache-2.0",
       "dependencies": {
         "@a2a-js/sdk": "0.3.11",
@@ -18674,7 +18674,7 @@
     },
     "packages/devtools": {
       "name": "@google/gemini-cli-devtools",
-      "version": "0.45.0-nightly.20260521.g854f811be",
+      "version": "0.45.0-preview.0",
       "license": "Apache-2.0",
       "dependencies": {
         "ws": "^8.16.0"
@@ -18689,7 +18689,7 @@
     },
     "packages/sdk": {
       "name": "@google/gemini-cli-sdk",
-      "version": "0.45.0-nightly.20260521.g854f811be",
+      "version": "0.45.0-preview.0",
       "license": "Apache-2.0",
       "dependencies": {
         "@google/gemini-cli-core": "file:../core",
@@ -18720,7 +18720,7 @@
     },
     "packages/test-utils": {
       "name": "@google/gemini-cli-test-utils",
-      "version": "0.45.0-nightly.20260521.g854f811be",
+      "version": "0.45.0-preview.0",
       "license": "Apache-2.0",
       "dependencies": {
         "@google/gemini-cli-core": "file:../core",
@@ -18752,7 +18752,7 @@
     },
     "packages/vscode-ide-companion": {
       "name": "gemini-cli-vscode-ide-companion",
-      "version": "0.45.0-nightly.20260521.g854f811be",
+      "version": "0.45.0-preview.0",
       "license": "LICENSE",
       "dependencies": {
         "@modelcontextprotocol/sdk": "^1.23.0",

package.json

@@ -1,6 +1,6 @@
 {
   "name": "@google/gemini-cli",
-  "version": "0.45.0-nightly.20260521.g854f811be",
+  "version": "0.45.0-preview.0",
   "engines": {
     "node": ">=20.0.0"
   },
@@ -14,7 +14,7 @@
     "url": "git+https://github.com/google-gemini/gemini-cli.git"
   },
   "config": {
-    "sandboxImageUri": "us-docker.pkg.dev/gemini-code-dev/gemini-cli/sandbox:0.45.0-nightly.20260521.g854f811be"
+    "sandboxImageUri": "us-docker.pkg.dev/gemini-code-dev/gemini-cli/sandbox:0.45.0-preview.0"
   },
   "scripts": {
     "start": "cross-env NODE_ENV=development node scripts/start.js",

packages/a2a-server/package.json

@@ -1,6 +1,6 @@
 {
   "name": "@google/gemini-cli-a2a-server",
-  "version": "0.45.0-nightly.20260521.g854f811be",
+  "version": "0.45.0-preview.0",
   "description": "Gemini CLI A2A Server",
   "repository": {
     "type": "git",

packages/cli/index.ts

@@ -21,12 +21,9 @@ import {
 // Tracking bug: https://github.com/microsoft/node-pty/issues/827
 process.on('uncaughtException', (error) => {
   if (error instanceof Error) {
-    const message = error.message || '';
     const isPtyResizeError =
-      message === 'Cannot resize a pty that has already exited';
-    const isEbadfError =
-      message.includes('EBADF') ||
-      (error as { code?: string }).code === 'EBADF';
+      error.message === 'Cannot resize a pty that has already exited';
+    const isEbadfError = error.message.includes('EBADF');
     const isFromNodePty =
       error.stack?.includes('node-pty') || error.stack?.includes('PtyResize');
 

packages/cli/package.json

@@ -1,6 +1,6 @@
 {
   "name": "@google/gemini-cli",
-  "version": "0.45.0-nightly.20260521.g854f811be",
+  "version": "0.45.0-preview.0",
   "description": "Gemini CLI",
   "license": "Apache-2.0",
   "repository": {
@@ -27,7 +27,7 @@
     "dist"
   ],
   "config": {
-    "sandboxImageUri": "us-docker.pkg.dev/gemini-code-dev/gemini-cli/sandbox:0.45.0-nightly.20260521.g854f811be"
+    "sandboxImageUri": "us-docker.pkg.dev/gemini-code-dev/gemini-cli/sandbox:0.45.0-preview.0"
   },
   "dependencies": {
     "@agentclientprotocol/sdk": "^0.16.1",

packages/cli/src/config/auth.test.ts

@@ -7,7 +7,6 @@
 import { AuthType } from '@google/gemini-cli-core';
 import { afterEach, beforeEach, describe, expect, it, vi } from 'vitest';
 import { validateAuthMethod } from './auth.js';
-import fs from 'node:fs';
 
 vi.mock('@google/gemini-cli-core', async (importOriginal) => {
   const actual =
@@ -18,30 +17,11 @@ vi.mock('@google/gemini-cli-core', async (importOriginal) => {
   };
 });
 
-const { mockSettings } = vi.hoisted(() => ({
-  mockSettings: {
-    merged: {
-      security: {
-        auth: {
-          byoidConfigPath: undefined as string | undefined,
-        },
-      },
-      experimental: {
-        byoid: false as boolean,
-      },
-    },
-  },
-}));
-
 vi.mock('./settings.js', () => ({
   loadEnvironment: vi.fn(),
-  loadSettings: vi.fn(() => mockSettings),
-}));
-
-vi.mock('node:fs', () => ({
-  default: {
-    existsSync: vi.fn(),
-  },
+  loadSettings: vi.fn().mockReturnValue({
+    merged: vi.fn().mockReturnValue({}),
+  }),
 }));
 
 describe('validateAuthMethod', () => {
@@ -50,13 +30,10 @@ describe('validateAuthMethod', () => {
     vi.stubEnv('GOOGLE_CLOUD_PROJECT', undefined);
     vi.stubEnv('GOOGLE_CLOUD_LOCATION', undefined);
     vi.stubEnv('GOOGLE_API_KEY', undefined);
-    mockSettings.merged.security.auth.byoidConfigPath = undefined;
-    mockSettings.merged.experimental.byoid = false;
   });
 
   afterEach(() => {
     vi.unstubAllEnvs();
-    vi.clearAllMocks();
   });
 
   it.each([
@@ -115,99 +92,17 @@ describe('validateAuthMethod', () => {
         '• GOOGLE_API_KEY environment variable (if using express mode).\n' +
         'Update your environment and try again (no reload needed if using .env)!',
     },
-    {
-      description:
-        'should return null for BYOID if experimental.byoid is true, and byoidConfigPath is set and exists',
-      authType: AuthType.BYOID,
-      envs: {},
-      byoidEnabled: true,
-      byoidConfigPath: '/path/to/config',
-      fsExists: true,
-      expected: null,
-    },
-    {
-      description:
-        'should return error for BYOID if experimental.byoid is false',
-      authType: AuthType.BYOID,
-      envs: {},
-      byoidEnabled: false,
-      expected:
-        'BYOID authentication is experimental and must be enabled via experimental.byoid in settings.',
-    },
-    {
-      description:
-        'should return error for BYOID if byoidConfigPath is not set',
-      authType: AuthType.BYOID,
-      envs: {},
-      byoidEnabled: true,
-      expected:
-        'When using BYOID, you must specify the security.auth.byoidConfigPath setting.\n' +
-        'Update your settings and try again!',
-    },
-    {
-      description:
-        'should return error for BYOID if byoidConfigPath does not exist',
-      authType: AuthType.BYOID,
-      envs: {},
-      byoidEnabled: true,
-      byoidConfigPath: '/non/existent/path',
-      fsExists: false,
-      expected: 'BYOID configuration file not found at: /non/existent/path',
-    },
-    {
-      description:
-        'should return null for BYOID if experimentalByoid argument is true, even if settings are false',
-      authType: AuthType.BYOID,
-      envs: {},
-      experimentalByoidArg: true,
-      byoidEnabled: false,
-      byoidConfigPath: '/path/to/config',
-      fsExists: true,
-      expected: null,
-    },
-    {
-      description:
-        'should return error for BYOID if experimentalByoid argument is false and settings are false',
-      authType: AuthType.BYOID,
-      envs: {},
-      experimentalByoidArg: false,
-      byoidEnabled: false,
-      expected:
-        'BYOID authentication is experimental and must be enabled via experimental.byoid in settings.',
-    },
     {
       description: 'should return an error message for an invalid auth method',
       // eslint-disable-next-line @typescript-eslint/no-explicit-any
-      authType: 'invalid' as any,
+      authType: 'invalid-method' as any,
       envs: {},
       expected: 'Invalid auth method selected.',
     },
-  ])(
-    '$description',
-    async ({
-      authType,
-      envs,
-      expected,
-      byoidConfigPath,
-      fsExists,
-      byoidEnabled,
-      experimentalByoidArg,
-    }) => {
-      for (const [key, value] of Object.entries(envs)) {
-        vi.stubEnv(key, value as string);
-      }
-      if (byoidConfigPath !== undefined) {
-        mockSettings.merged.security.auth.byoidConfigPath = byoidConfigPath;
-      }
-      if (byoidEnabled !== undefined) {
-        mockSettings.merged.experimental.byoid = byoidEnabled;
-      }
-      if (fsExists !== undefined) {
-        vi.mocked(fs.existsSync).mockReturnValue(fsExists);
-      }
-      expect(await validateAuthMethod(authType, experimentalByoidArg)).toBe(
-        expected,
-      );
-    },
-  );
+  ])('$description', async ({ authType, envs, expected }) => {
+    for (const [key, value] of Object.entries(envs)) {
+      vi.stubEnv(key, value as string);
+    }
+    expect(await validateAuthMethod(authType)).toBe(expected);
+  });
 });

packages/cli/src/config/auth.ts

@@ -6,14 +6,11 @@
 
 import { AuthType, loadApiKey } from '@google/gemini-cli-core';
 import { loadEnvironment, loadSettings } from './settings.js';
-import fs from 'node:fs';
 
 export async function validateAuthMethod(
   authMethod: string,
-  experimentalByoid?: boolean,
 ): Promise<string | null> {
-  const settings = loadSettings();
-  loadEnvironment(settings.merged, process.cwd());
+  loadEnvironment(loadSettings().merged, process.cwd());
   if (
     authMethod === AuthType.LOGIN_WITH_GOOGLE ||
     authMethod === AuthType.COMPUTE_ADC
@@ -48,25 +45,5 @@ export async function validateAuthMethod(
     return null;
   }
 
-  if (authMethod === AuthType.BYOID) {
-    const isByoidEnabled =
-      experimentalByoid || settings.merged.experimental?.byoid;
-    if (!isByoidEnabled) {
-      return 'BYOID authentication is experimental and must be enabled via experimental.byoid in settings.';
-    }
-    const configPath = settings.merged.security.auth.byoidConfigPath;
-    if (!configPath) {
-      return (
-        'When using BYOID, you must specify the security.auth.byoidConfigPath setting.\n' +
-        'Update your settings and try again!'
-      );
-    }
-
-    if (!fs.existsSync(configPath)) {
-      return `BYOID configuration file not found at: ${configPath}`;
-    }
-    return null;
-  }
-
   return 'Invalid auth method selected.';
 }

packages/cli/src/config/config.ts

@@ -91,7 +91,6 @@ export interface CliArgs {
   allowedTools: string[] | undefined;
   acp?: boolean;
   experimentalAcp?: boolean;
-  experimentalByoid?: boolean;
   extensions: string[] | undefined;
   listExtensions: boolean | undefined;
   resume: string | typeof RESUME_LATEST | undefined;
@@ -369,10 +368,6 @@ export async function parseArguments(
           description:
             'Starts the agent in ACP mode (deprecated, use --acp instead)',
         })
-        .option('experimental-byoid', {
-          type: 'boolean',
-          description: 'Enable experimental support for BYOID authentication',
-        })
         .option('allowed-mcp-server-names', {
           type: 'array',
           string: true,
@@ -1060,7 +1055,6 @@ export async function loadCliConfig(
     disabledSkills: settings.skills?.disabled,
     experimentalAutoMemory: settings.experimental?.autoMemory,
     experimentalGemma: settings.experimental?.gemma,
-    experimentalByoid: argv.experimentalByoid || settings.experimental?.byoid,
     contextManagement,
     modelSteering: settings.experimental?.modelSteering,
     topicUpdateNarration:
@@ -1127,7 +1121,6 @@ export async function loadCliConfig(
       };
     },
     enableConseca: settings.security?.enableConseca,
-    byoidConfigPath: settings.security?.auth?.byoidConfigPath,
   });
 }
 

packages/cli/src/config/extension-manager.ts

@@ -131,7 +131,6 @@ export class ExtensionManager extends ExtensionLoader {
       cwd: options.workspaceDir,
       model: '',
       debugMode: false,
-      byoidConfigPath: options.settings.security?.auth?.byoidConfigPath,
     });
     this.requestConsent = options.requestConsent;
     this.requestSetting = options.requestSetting ?? undefined;

packages/cli/src/config/settingsSchema.ts

@@ -2002,16 +2002,6 @@ const SETTINGS_SCHEMA = {
             description: 'Whether to use an external authentication flow.',
             showInDialog: false,
           },
-          byoidConfigPath: {
-            type: 'string',
-            label: 'BYOID Configuration Path',
-            category: 'Security',
-            requiresRestart: true,
-            default: undefined as string | undefined,
-            description:
-              'Path to the BYOID (Bring Your Own IDentifier) configuration file.',
-            showInDialog: true,
-          },
         },
       },
       enableConseca: {
@@ -2477,16 +2467,6 @@ const SETTINGS_SCHEMA = {
         description: 'Enable logic for context management.',
         showInDialog: true,
       },
-      byoid: {
-        type: 'boolean',
-        label: 'Enable BYOID Auth',
-        category: 'Experimental',
-        requiresRestart: true,
-        default: false,
-        description:
-          'Enable experimental support for BYOID (Bring Your Own IDentifier) authentication.',
-        showInDialog: true,
-      },
       topicUpdateNarration: {
         type: 'boolean',
         label: 'Topic & Update Narration',

packages/cli/src/gemini.tsx

@@ -516,7 +516,6 @@ export async function main() {
       ) {
         const err = await validateAuthMethod(
           settings.merged.security.auth.selectedType,
-          partialConfig.isExperimentalByoidEnabled(),
         );
         if (err) {
           throw new Error(err);

packages/cli/src/ui/AppContainer.tsx

@@ -912,10 +912,7 @@ Logging in with Google... Restarting Gemini CLI to continue.
       const authMethod = settings.merged.security.auth.selectedType;
       void (async () => {
         try {
-          const error = await validateAuthMethod(
-            authMethod,
-            config.isExperimentalByoidEnabled(),
-          );
+          const error = await validateAuthMethod(authMethod);
           if (
             error &&
             authMethod === settings.merged.security.auth.selectedType
@@ -934,7 +931,6 @@ Logging in with Google... Restarting Gemini CLI to continue.
     settings.merged.security.auth.enforcedType,
     settings.merged.security.auth.useExternal,
     onAuthError,
-    config,
   ]);
 
   const { isModelDialogOpen, openModelDialog, closeModelDialog } =

packages/cli/src/ui/auth/useAuth.ts

@@ -21,7 +21,6 @@ import { validateAuthMethod } from '../../config/auth.js';
 export async function validateAuthMethodWithSettings(
   authType: AuthType,
   settings: LoadedSettings,
-  config?: Config,
 ): Promise<string | null> {
   const enforcedType = settings.merged.security.auth.enforcedType;
   if (enforcedType && enforcedType !== authType) {
@@ -34,7 +33,7 @@ export async function validateAuthMethodWithSettings(
   if (authType === AuthType.USE_GEMINI) {
     return null;
   }
-  return validateAuthMethod(authType, config?.isExperimentalByoidEnabled());
+  return validateAuthMethod(authType);
 }
 
 import type { AccountSuspensionInfo } from '../contexts/UIStateContext.js';
@@ -115,7 +114,6 @@ export const useAuthCommand = (
       const error = await validateAuthMethodWithSettings(
         authType,
         settings,
-        config,
       ).catch((e: unknown) => getErrorMessage(e));
 
       if (error) {

packages/cli/src/validateNonInterActiveAuth.ts

@@ -42,10 +42,7 @@ export async function validateNonInteractiveAuth(
     const authType: AuthType = effectiveAuthType;
 
     if (!useExternalAuth) {
-      const err = await validateAuthMethod(
-        String(authType),
-        nonInteractiveConfig.isExperimentalByoidEnabled(),
-      );
+      const err = await validateAuthMethod(String(authType));
       if (err != null) {
         throw new Error(err);
       }

packages/core/package.json

@@ -1,6 +1,6 @@
 {
   "name": "@google/gemini-cli-core",
-  "version": "0.45.0-nightly.20260521.g854f811be",
+  "version": "0.45.0-preview.0",
   "description": "Gemini CLI Core",
   "license": "Apache-2.0",
   "repository": {

packages/core/src/code_assist/codeAssist.ts

@@ -19,8 +19,7 @@ export async function createCodeAssistContentGenerator(
 ): Promise<ContentGenerator> {
   if (
     authType === AuthType.LOGIN_WITH_GOOGLE ||
-    authType === AuthType.COMPUTE_ADC ||
-    authType === AuthType.BYOID
+    authType === AuthType.COMPUTE_ADC
   ) {
     const authClient = await getOauthClient(authType, config);
     const userData = await setupUser(authClient, config, httpOptions);

packages/core/src/config/config.ts

@@ -715,7 +715,6 @@ export interface ConfigParameters {
   autoDistillation?: boolean;
   experimentalAutoMemory?: boolean;
   experimentalGemma?: boolean;
-  experimentalByoid?: boolean;
   experimentalContextManagementConfig?: string;
   experimentalAgentHistoryTruncation?: boolean;
   experimentalAgentHistoryTruncationThreshold?: number;
@@ -745,7 +744,6 @@ export interface ConfigParameters {
   };
   vertexAiRouting?: VertexAiRoutingConfig;
   logRagSnippets?: boolean;
-  byoidConfigPath?: string;
 }
 
 export class Config implements McpContext, AgentLoopContext {
@@ -958,7 +956,6 @@ export class Config implements McpContext, AgentLoopContext {
     overageStrategy: OverageStrategy;
   };
   private readonly vertexAiRouting: VertexAiRoutingConfig | undefined;
-  private readonly byoidConfigPath: string | undefined;
 
   private readonly enableAgents: boolean;
   private agents: AgentSettings;
@@ -968,7 +965,6 @@ export class Config implements McpContext, AgentLoopContext {
   private readonly adminSkillsEnabled: boolean;
   private readonly experimentalAutoMemory: boolean;
   private readonly experimentalGemma: boolean;
-  private readonly experimentalByoid: boolean;
   private readonly experimentalContextManagementConfig?: string;
   private readonly memoryBoundaryMarkers: readonly string[];
   private readonly topicUpdateNarration: boolean;
@@ -1190,7 +1186,6 @@ export class Config implements McpContext, AgentLoopContext {
 
     this.experimentalAutoMemory = params.experimentalAutoMemory ?? false;
     this.experimentalGemma = params.experimentalGemma ?? true;
-    this.experimentalByoid = params.experimentalByoid ?? false;
     this.experimentalContextManagementConfig =
       params.experimentalContextManagementConfig;
     this.memoryBoundaryMarkers = params.memoryBoundaryMarkers ?? ['.git'];
@@ -1603,7 +1598,6 @@ export class Config implements McpContext, AgentLoopContext {
       baseUrl,
       customHeaders,
       this.vertexAiRouting,
-      this.byoidConfigPath,
     );
     this.contentGenerator = await createContentGenerator(
       newContentGeneratorConfig,
@@ -2658,10 +2652,6 @@ export class Config implements McpContext, AgentLoopContext {
     return this.modelSteering;
   }
 
-  isExperimentalByoidEnabled(): boolean {
-    return this.experimentalByoid;
-  }
-
   async getToolOutputMaskingConfig(): Promise<ToolOutputMaskingConfig> {
     await this.ensureExperimentsLoaded();
 
@@ -4146,14 +4136,6 @@ export class Config implements McpContext, AgentLoopContext {
       await this.mcpClientManager.stop();
     }
   }
-
-  isExperimentalByoidEnabled(): boolean {
-    return this.experimentalByoid;
-  }
-
-  getByoidConfigPath(): string | undefined {
-    return this.byoidConfigPath;
-  }
 }
 // Export model constants for use in CLI
 export { DEFAULT_GEMINI_FLASH_MODEL };

packages/core/src/core/contentGenerator.ts

@@ -65,7 +65,6 @@ export enum AuthType {
   LEGACY_CLOUD_SHELL = 'cloud-shell',
   COMPUTE_ADC = 'compute-default-credentials',
   GATEWAY = 'gateway',
-  BYOID = 'byoid',
 }
 
 /**
@@ -106,7 +105,6 @@ export type ContentGeneratorConfig = {
   baseUrl?: string;
   customHeaders?: Record<string, string>;
   vertexAiRouting?: VertexAiRoutingConfig;
-  byoidConfigPath?: string;
 };
 
 export type VertexAiRequestType = 'dedicated' | 'shared';
@@ -136,7 +134,6 @@ export async function createContentGeneratorConfig(
   baseUrl?: string,
   customHeaders?: Record<string, string>,
   vertexAiRouting?: VertexAiRoutingConfig,
-  byoidConfigPath?: string,
 ): Promise<ContentGeneratorConfig> {
   const contentGeneratorConfig: ContentGeneratorConfig = {
     authType,
@@ -144,7 +141,6 @@ export async function createContentGeneratorConfig(
     baseUrl,
     customHeaders,
     vertexAiRouting,
-    byoidConfigPath,
   };
 
   // If we are using Google auth or we are in Cloud Shell, there is nothing else to validate for now.
@@ -152,8 +148,7 @@ export async function createContentGeneratorConfig(
   // (WSL/SSH/Docker/CI) keytar can block indefinitely on its functional probe.
   if (
     authType === AuthType.LOGIN_WITH_GOOGLE ||
-    authType === AuthType.COMPUTE_ADC ||
-    authType === AuthType.BYOID
+    authType === AuthType.COMPUTE_ADC
   ) {
     return contentGeneratorConfig;
   }
@@ -282,17 +277,8 @@ export async function createContentGenerator(
     }
     if (
       config.authType === AuthType.LOGIN_WITH_GOOGLE ||
-      config.authType === AuthType.COMPUTE_ADC ||
-      config.authType === AuthType.BYOID
+      config.authType === AuthType.COMPUTE_ADC
     ) {
-      if (
-        config.authType === AuthType.BYOID &&
-        !gcConfig.isExperimentalByoidEnabled()
-      ) {
-        throw new Error(
-          'BYOID authentication is experimental and must be enabled via the experimentalByoid flag.',
-        );
-      }
       const httpOptions = { headers: baseHeaders };
       return new LoggingContentGenerator(
         await createCodeAssistContentGenerator(

packages/core/src/services/shellExecutionService.ts

@@ -37,7 +37,6 @@ import {
 } from './sandboxManager.js';
 import type { SandboxConfig } from '../config/config.js';
 import { killProcessGroup } from '../utils/process-utils.js';
-import { isNodeError } from '../utils/errors.js';
 import {
   ExecutionLifecycleService,
   type ExecutionHandle,
@@ -1508,45 +1507,31 @@ export class ShellExecutionService {
     }
 
     const activePty = this.activePtys.get(pid);
-    if (!activePty) {
-      return;
-    }
-
-    // Skip Windows: process.kill(pid, 0) is heavy and native errors are catchable there.
-    if (process.platform !== 'win32') {
+    if (activePty) {
       try {
-        process.kill(pid, 0);
+        activePty.ptyProcess.resize(cols, rows);
+        activePty.headlessTerminal.resize(cols, rows);
       } catch (e) {
-        // Bail only if the process is explicitly confirmed dead (ESRCH).
-        if (isNodeError(e) && e.code === 'ESRCH') {
-          return;
+        // Ignore errors if the pty has already exited, which can happen
+        // due to a race condition between the exit event and this call.
+        // eslint-disable-next-line @typescript-eslint/no-unsafe-type-assertion
+        const err = e as { code?: string; message?: string };
+        const isEsrch = err.code === 'ESRCH';
+        const isEbadf = err.code === 'EBADF' || err.message?.includes('EBADF');
+        const isWindowsPtyError = err.message?.includes(
+          'Cannot resize a pty that has already exited',
+        );
+
+        if (isEsrch || isEbadf || isWindowsPtyError) {
+          // On Unix, we get an ESRCH or EBADF error.
+          // On Windows, we get a message-based error.
+          // In both cases, it's safe to ignore.
+        } else {
+          throw e;
         }
       }
     }
 
-    try {
-      activePty.ptyProcess.resize(cols, rows);
-      activePty.headlessTerminal.resize(cols, rows);
-    } catch (e) {
-      // Ignore errors if the pty has already exited, which can happen
-      // due to a race condition between the exit event and this call.
-      // eslint-disable-next-line @typescript-eslint/no-unsafe-type-assertion
-      const err = e as { code?: string; message?: string };
-      const isEsrch = err.code === 'ESRCH';
-      const isEbadf = err.code === 'EBADF' || err.message?.includes('EBADF');
-      const isWindowsPtyError = err.message?.includes(
-        'Cannot resize a pty that has already exited',
-      );
-
-      if (isEsrch || isEbadf || isWindowsPtyError) {
-        // On Unix, we get an ESRCH or EBADF error.
-        // On Windows, we get a message-based error.
-        // In both cases, it's safe to ignore.
-      } else {
-        throw e;
-      }
-    }
-
     // Force emit the new state after resize
     if (activePty) {
       const endLine = activePty.headlessTerminal.buffer.active.length;

packages/devtools/package.json

@@ -1,6 +1,6 @@
 {
   "name": "@google/gemini-cli-devtools",
-  "version": "0.45.0-nightly.20260521.g854f811be",
+  "version": "0.45.0-preview.0",
   "license": "Apache-2.0",
   "type": "module",
   "main": "dist/src/index.js",

packages/sdk/package.json

@@ -1,6 +1,6 @@
 {
   "name": "@google/gemini-cli-sdk",
-  "version": "0.45.0-nightly.20260521.g854f811be",
+  "version": "0.45.0-preview.0",
   "description": "Gemini CLI SDK",
   "license": "Apache-2.0",
   "repository": {

packages/test-utils/package.json

@@ -1,6 +1,6 @@
 {
   "name": "@google/gemini-cli-test-utils",
-  "version": "0.45.0-nightly.20260521.g854f811be",
+  "version": "0.45.0-preview.0",
   "private": true,
   "main": "src/index.ts",
   "license": "Apache-2.0",

packages/vscode-ide-companion/package.json

@@ -2,7 +2,7 @@
   "name": "gemini-cli-vscode-ide-companion",
   "displayName": "Gemini CLI Companion",
   "description": "Enable Gemini CLI with direct access to your IDE workspace.",
-  "version": "0.45.0-nightly.20260521.g854f811be",
+  "version": "0.45.0-preview.0",
   "publisher": "google",
   "icon": "assets/icon.png",
   "repository": {