diff --git a/CHANGELOG.md b/CHANGELOG.md
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@@ -6,6 +6,21 @@ The format is inspired by [Keep a Changelog](https://keepachangelog.com/) and th
 
 ## [Unreleased]
 
+## [1.0.38] - 2026-06-16
+
+This release adds client-side agent attribution for usage stats, fixes two commands that silently misbehaved (`dws sheet export` hanging, `dws upgrade --dry-run` actually upgrading), hardens the document write path against server-rejected characters, and makes the long-broken `--no-browser` login flag actually work.
+
+### Added
+
+- **Client-side `agent_code` detection + per-channel agent instance id for usage stats** (#467; `internal/auth/agent_code_detect.go`, `internal/auth/identity.go`, `docs/agent-code.md`) — every MCP request now carries `x-dingtalk-dws-agent-code` (which agent host is driving dws — e.g. `claudecode` / `codex` / `qoder` / `cursor` / `hermes` / `openclaw`, falling back to `custom`), `x-dws-agent-instance-id` (a per-machine×channel id, `dwsa_<base62(sha256(machineId|agent_code))>`), the existing machine-level `x-dws-agent-id`, and `X-Cli-Version`. Detection is a confidence ladder, each signature verified on real hosts / official docs (never guessed; anything unrecognized resolves to `custom`): T0 explicit `DINGTALK_DWS_AGENTCODE`, T1 per-agent env signatures, T2 `VSCODE_BRAND` covering the whole VS Code fork family, T3 the macOS `__CFBundleIdentifier` map, T4 `custom`. `identity.json` migrates v1 → v2 transparently and keeps `x-dws-agent-id` machine-level for continuity. **Trust boundary:** `agent_code` and both ids are client self-reported and forgeable — they are for stats / observability only and must not be used for auth, authorization, rate-limiting, billing, or revocation. Server-side gateway work (header passthrough allowlist + logging the fields into the warehouse) is required before the data lands and is tracked separately.
+
+### Fixed
+
+- **`dws sheet export` no longer hangs for the full ~5-minute poll timeout** (#462; `internal/compat/pipeline.go`) — the pipeline poll loop compared the API status against `pollUntilValue` with case-sensitive `==`, but the API returns `"success"` while the pipeline config declares `"SUCCESS"`, so the match never fired and the loop spun until timeout. Switched to `strings.EqualFold`, aligning with the case-insensitive `normalizeAsyncStatus` helper already used for `doc export` / `aitable export`.
+- **`dws upgrade --dry-run` now previews instead of performing a real upgrade** (#416, fixes #364; `internal/app/upgrade.go`) — `newUpgradeCommand` registered no `--dry-run` flag and never read the global persistent one, so `--dry-run` fell through and ran a real, irreversible upgrade (download + binary replace), directly contradicting the flag's documented `预览操作内容，不实际执行` contract. It now resolves the target release and platform asset (so "already latest" / "no build for this platform" is still surfaced), prints the 1–5 steps it *would* perform via the side-effect-free `writeDryRunPlan`, and returns before any backup / download / replace. Covered by `TestWriteDryRunPlan_*` and an updated help test.
+- **`dws doc create` / `dws doc update` strip server-rejected characters instead of failing** (#465; `internal/helpers/doc.go`, `internal/helpers/doc_jsonml.go`) — the Markdown write path sent raw content straight through, and the dangerous-Unicode strip only ran on the JSONML branch, so content carrying C0 control characters (anything `< 0x20` except `\t` / `\n`), DEL (`0x7F`), or zero-width / line-separator codepoints (`U+200D`, `U+2028`, `U+2029`) — common in LLM-generated or copy-pasted text — was rejected by the server-side `RejectControlChars` validator and the command failed. `stripDocDangerousUnicode` is renamed to `stripDocInputUnsafe`, extended to match the authoritative `apiclient.rejectDangerousChars` set, and applied on both the Markdown and JSONML node write paths. Tab and newline are preserved. Ported from dws-wukong.
+- **`dws auth login --no-browser` is now honored** (#365; `internal/app/auth_command.go`, `internal/auth/device_flow.go`, `internal/auth/oauth_provider.go`) — the flag was already defined (and hidden) but never wired to the login providers, so the browser always opened regardless. The value is now passed into `DeviceFlowProvider.NoBrowser` / `OAuthProvider.NoBrowser` and gates the `openBrowser` call; the flag is also unhidden so headless / remote sessions can discover it.
+
 ## [1.0.37] - 2026-06-11
 
 This release realigns the npm channel and hardens PAT batch grants. Background on the npm realignment: 1.0.36 was re-cut on GitHub on 2026-06-11 to fold in the canonical-tree poisoned-cache guard (#454), but the npm registry permanently forbids republishing a version number, so the npm package stayed on the original, unguarded cut. 1.0.37 is therefore the first version where **every** distribution channel — GitHub releases, `dws upgrade`, the install scripts, and npm — ships the same guarded build. If you installed 1.0.36 from npm, upgrade to this version.