From 208df4931dfa80b461e7d610a7b5edf892af8b62 Mon Sep 17 00:00:00 2001
From: Willem Jiang <willem.jiang@gmail.com>
Date: Sat, 18 Jul 2026 17:25:45 +0800
Subject: [PATCH] doc(changelog): updated the changelog with latest changes
 (#4270)

---
 CHANGELOG.md | 565 +++++++++++++++++++++++++++++++++++++++++++++++----
 1 file changed, 523 insertions(+), 42 deletions(-)

diff --git a/CHANGELOG.md b/CHANGELOG.md
index 5b6e7b4d8..ef5c19bd1 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -7,6 +7,146 @@ and this project adheres to [Semantic Versioning](https://semver.org/spec/v2.0.0
 
 ## [Unreleased]
 
+This section accumulates work toward the **2.1.0** milestone
+([milestone 2](https://github.com/bytedance/deer-flow/milestone/2)).
+
+### ⚠ Breaking changes
+
+- **skills:** A directory containing `SKILL.md` is now a runtime package
+  boundary. Nested `SKILL.md` files inside that package are supporting data and
+  are no longer registered as independent skills; unusual custom layouts must
+  move independently loadable skills under a namespace directory without its
+  own `SKILL.md`. ([#4098])
+- **memory:** The memory system is now pluggable (`memory.manager_class` selects
+  a backend; default `deermem` is self-contained). DeerMem-private settings moved
+  from the top level of `memory:` into `memory.backend_config`, and the
+  `/memory/config` response (and `client.get_memory_config()`) changed shape.
+  ([#4122])
+- **memory:** `/memory/config` and `client.get_memory_config()` no longer return
+  flat DeerMem fields (`storage_path`, `max_facts`, `debounce_seconds`,
+  `token_counting`, `guaranteed_*`, `staleness_*`, ...). They return
+  `{enabled, mode, injection_enabled, manager_class, backend_config}` where
+  `backend_config` is an opaque dict the active backend self-interprets. Memory
+  *data* responses (`/memory`, `/memory/status` data) are unchanged. External
+  API/SDK clients reading the old flat fields must read `backend_config` instead.
+  ([#4122])
+- **memory:** Custom `memory.storage_class` moved: the old default path
+  `deerflow.agents.memory.storage.FileMemoryStorage` no longer exists (now
+  `deerflow.agents.memory.backends.deermem.deermem.core.storage.FileMemoryStorage`).
+  Custom `MemoryStorage` subclasses must accept `config` in `__init__` (was
+  no-arg). A broken/old `storage_class` logs an error and falls back to
+  `FileMemoryStorage` (won't crash) -- update the path + signature to restore it.
+  ([#4122])
+- **memory:** `storage_path` semantics changed from a FILE path to a root
+  DIRECTORY. Pre-abstraction, an absolute `storage_path` was the shared memory
+  file (opting out of per-user isolation) and a relative value was the global
+  file under the data base_dir. Now `storage_path` (absolute or relative) is the
+  root directory; per-user memory lives at `{storage_path}/users/{uid}/memory.json`.
+  An upgrade keeping the old default `storage_path: memory.json` (a relative file
+  name) would orphan per-user memory or hit `NotADirectoryError` on save, so the
+  legacy migration **drops file-style `storage_path` values (ending in `.json`)
+  with a warning** and the factory **raises** if `storage_path` resolves to an
+  existing file. Set `memory.backend_config.storage_path` to a directory for a
+  custom root. ([#4122])
+
+### Added
+
+#### Agents & runtime
+
+- **middleware:** New `TokenBudgetMiddleware` enforces a per-run token budget,
+  shared additively across the lead agent and subagents. ([#3412])
+- **middleware:** Structured tool-result metadata and a tool-progress state
+  machine give the runtime first-class visibility into multi-step tool flows.
+  ([#3601])
+- **context:** Record the effective memory identity per run and persist durable
+  context (system messages, memory, and tool state) across summarization,
+  emitting it as structured runtime metadata so compaction no longer drops it.
+  ([#3556], [#3887], [#3906])
+- **runtime:** Goal continuations let a run resume toward a goal across multiple
+  agent turns, with `continuation_count` tracked and capped. ([#3858])
+- **subagents:** A system-maintained delegation ledger prevents redundant
+  re-delegation of an in-flight task, and a total delegation cap bounds fan-out
+  per run. ([#3877], [#4115])
+- **subagents:** Persist and display subagent step history in the thread.
+  ([#3845])
+- **tools:** Structured synopses replace raw oversized tool output in previews.
+  ([#3377])
+- **files:** Deterministic read-before-write version gate for file tools
+  prevents clobbering concurrent edits. ([#3912])
+- **gateway:** Cache-aware cost accounting attributes token costs to cached vs.
+  uncached paths; a Redis stream bridge enables distributed event streaming; and
+  manual context compaction is exposed to the user. ([#3920], [#3191], [#3969])
+
+#### Memory
+
+- **memory:** Memory consolidation synthesizes fragmented facts, and a staleness
+  review prunes silently-outdated facts using LLM-assigned per-fact
+  `expected_valid_days` / `staleFactsToExtend`. ([#3996], [#3860], [#4143])
+- **memory:** Guaranteed injection of correction facts (with graceful fallback)
+  so user corrections always reach the model. ([#3592])
+
+#### Skills
+
+- **skills:** Native SkillScan (phase 1) statically analyzes skill packages at
+  load, and `describe_skill` enables deferred discovery so the model fetches a
+  skill's schema on demand instead of loading all skills up front. ([#3033],
+  [#3775])
+- **skills:** Per-user custom skill isolation with sandbox mounting. ([#3889])
+
+#### Models & integrations
+
+- **community:** New web search/fetch engines - GroundRoute, Crawl4AI
+  (`web_fetch`), and a fastCRW provider - plus a Browserless `web_capture`
+  screenshot tool and Brave `image_search`. ([#3675], [#3821], [#3585], [#3881],
+  [#3866])
+- **mcp:** Per-server `tool_call_timeout` for MCP tool calls, and routing hints
+  that guide the model to the right server. ([#3843], [#4004])
+
+#### Channels
+
+- **channels:** Expose the IM `channel_user_id` to sandbox commands as
+  `DEERFLOW_CHANNEL_USER_ID`. ([#3926])
+- **channels:** Queue rapid same-thread messages and preserve topic-card
+  previews across batches. ([#3988])
+
+#### Auth & guardrails
+
+- **auth:** Generic OIDC/SSO authentication with Keycloak support. ([#3506])
+- **guardrails:** Authenticated runtime context is exposed in `GuardrailRequest`,
+  and security interventions are persisted as run events. ([#3665], [#3837])
+
+#### Sandbox & provisioner
+
+- **sandbox:** New E2B and BoxLite (micro-VM) sandbox providers; BoxLite ships
+  with a warm pool. ([#3883], [#3940], [#3951])
+- **provisioner:** ClusterIP Services and scoped per-skill PVC mounts, plus a
+  configurable sandbox container port. ([#4016], [#3928])
+
+#### Frontend
+
+- **frontend:** Branching support for assistant turns and side conversations for
+  quoted follow-ups. ([#3950], [#3934])
+- **frontend:** Regenerate the latest answer. ([#3637])
+- **frontend:** Citation-sources evidence panel, workspace change review for
+  agent runs, and a visualized `ask_clarification` card. ([#3907], [#3945],
+  [#3956])
+- **frontend:** Voice dictation, prompt-history recall with arrow keys, composer
+  input polishing, and a "(thought for N seconds)" thinking-duration chip.
+  ([#4036], [#3718], [#3986], [#3627])
+- **frontend:** Feature-gate the agents UI behind the `agents_api` flag, and
+  persist AI turn duration in backend and UI. ([#3769], [#3663])
+
+#### Observability & tooling
+
+- **observability:** Trace-id correlation with enhanced logging and agent
+  observability via Monocle. ([#3902], [#4024])
+- **tooling:** A Hermes-like terminal workbench (`deerflow` CLI) backed by
+  `DeerFlowClient`, plus a redacted community support-bundle generator. ([#3760],
+  [#3886])
+- **setup:** The setup wizard now asks whether OpenAI-compatible gateway models
+  support thinking, and a Volcengine Coding Plan quick-setup path was added.
+  ([#3428], [#4141])
+
 ### Changed
 
 - **sandbox:** The Helm chart now defaults per-sandbox Services to `ClusterIP`
@@ -19,45 +159,6 @@ and this project adheres to [Semantic Versioning](https://semver.org/spec/v2.0.0
   where the gateway is not in K8s), set `provisioner.sandboxServiceType: NodePort`
   (with `provisioner.nodeHost` if needed). The provisioner itself is unchanged
   (mode-aware since #4016). ([#4190])
-  
-### ⚠ Breaking changes
-
-- **skills:** A directory containing `SKILL.md` is now a runtime package
-  boundary. Nested `SKILL.md` files inside that package are supporting data and
-  are no longer registered as independent skills; unusual custom layouts must
-  move independently loadable skills under a namespace directory without its
-  own `SKILL.md`. ([#4098])
-- **memory:** The memory system is now pluggable (`memory.manager_class` selects
-  a backend; default `deermem` is self-contained). DeerMem-private settings moved
-  from the top level of `memory:` into `memory.backend_config`, and the
-  `/memory/config` response (and `client.get_memory_config()`) changed shape.
-- **memory:** `/memory/config` and `client.get_memory_config()` no longer return
-  flat DeerMem fields (`storage_path`, `max_facts`, `debounce_seconds`,
-  `token_counting`, `guaranteed_*`, `staleness_*`, ...). They return
-  `{enabled, mode, injection_enabled, manager_class, backend_config}` where
-  `backend_config` is an opaque dict the active backend self-interprets. Memory
-  *data* responses (`/memory`, `/memory/status` data) are unchanged. External
-  API/SDK clients reading the old flat fields must read `backend_config` instead.
-- **memory:** Custom `memory.storage_class` moved: the old default path
-  `deerflow.agents.memory.storage.FileMemoryStorage` no longer exists (now
-  `deerflow.agents.memory.backends.deermem.deermem.core.storage.FileMemoryStorage`).
-  Custom `MemoryStorage` subclasses must accept `config` in `__init__` (was
-  no-arg). A broken/old `storage_class` logs an error and falls back to
-  `FileMemoryStorage` (won't crash) -- update the path + signature to restore it.
-- **memory:** `storage_path` semantics changed from a FILE path to a root
-  DIRECTORY. Pre-abstraction, an absolute `storage_path` was the shared memory
-  file (opting out of per-user isolation) and a relative value was the global
-  file under the data base_dir. Now `storage_path` (absolute or relative) is the
-  root directory; per-user memory lives at `{storage_path}/users/{uid}/memory.json`.
-  An upgrade keeping the old default `storage_path: memory.json` (a relative file
-  name) would orphan per-user memory or hit `NotADirectoryError` on save, so the
-  legacy migration **drops file-style `storage_path` values (ending in `.json`)
-  with a warning** and the factory **raises** if `storage_path` resolves to an
-  existing file. Set `memory.backend_config.storage_path` to a directory for a
-  custom root.
-
-### Changed
-
 - **skills:** An active restrictive skill must explicitly list `task` in
   `allowed-tools` to delegate to a subagent. Read-only discovery infrastructure
   (`tool_search` and `describe_skill`) remains available, but cannot grant schema
@@ -68,12 +169,18 @@ and this project adheres to [Semantic Versioning](https://semver.org/spec/v2.0.0
   into `backend_config`** on load with a warning, so an upgrade does NOT silently
   revert customized settings to defaults (`model_name` ->
   `backend_config.model.model`). Move them under `memory.backend_config` in
-  `config.yaml` to silence the warning.
+  `config.yaml` to silence the warning. ([#4122])
 - **memory:** Added `memory.mode` (`middleware` | `tool`); `tool` mode registers
   memory tools (`memory_search`/`add`/`update`/`delete`) the model calls directly
   instead of passive per-turn summarization. `manager_class` resolution is now
   fail-fast (raises `ValueError` on an unknown backend instead of silently
-  falling back).
+  falling back). ([#4023])
+- **middleware:** Declarative layered middleware builder; `ThreadData` now runs
+  before `Uploads`. ([#3809])
+- **sandbox:** The host->virtual output-masking regex now has a single owner,
+  eliminating duplicated pattern compilation. ([#4108])
+- **docs:** `AGENTS.md` is now the source of truth for agent guidance, imported
+  by `CLAUDE.md` via `@AGENTS.md`; module guides refreshed. ([#3770])
 
 ### Fixed
 
@@ -86,7 +193,162 @@ and this project adheres to [Semantic Versioning](https://semver.org/spec/v2.0.0
   not just `ChatOpenAI` / `PatchedChatOpenAI`. Those five previously dropped the
   configured endpoint silently and then failed every request with an opaque
   `unexpected keyword argument 'api_base'`; the unknown-config-key warning was
-  disabled for them as well. Both now gate on `issubclass(BaseChatOpenAI)`. ([#4146])
+  disabled for them as well. Both now gate on `issubclass(BaseChatOpenAI)`.
+  ([#4146])
+- **agents:** Coalesce `SystemMessage`s before the LLM request; ensure a visible
+  response after tool runs; avoid a default LLM title call before stream end;
+  reserve ellipsis room so the local title respects `max_chars`; and snap the
+  tool-output tail forward so fallback truncation respects `max_chars`. ([#3711],
+  [#4033], [#3885], [#4052], [#4017])
+- **agents:** Skip dateless reminders in the dynamic-context date scan; load
+  `SOUL.md` from agent dirs without `config.yaml`; require `config.yaml` in
+  `update_agent`'s legacy-agent guard; and refuse empty `SOUL.md` updates.
+  ([#3685], [#4136], [#4166], [#4219])
+- **middleware:** Window the loop-detection tool-frequency counter so long runs
+  no longer false-trip; prevent the title middleware from streaming tokens;
+  fix positional fallback consuming an unrelated todo when the same-content list
+  is exhausted; acquire the token-budget lock across `_apply`, `before_agent`,
+  `_clear_run_state`, and `_drain_pending_warnings`; drop orphan `ToolMessage`s
+  so strict providers don't 400; sanitize invalid tool-call arguments; and
+  recover from empty tool-call names and malformed tool-call ids in dangling
+  repair. ([#4072], [#3566], [#3709], [#3714], [#4080], [#4193], [#4008],
+  [#4246])
+- **subagents:** Inherit `LoopDetectionMiddleware` and summarization middleware
+  so tool loops break and steps are captured; surface the turn-budget cap as
+  `MAX_TURNS_REACHED` with a partial result; unify guardrail caps on the additive
+  `stop_reason` + `token_budget`; inject durable context before compaction;
+  preserve the parent checkpoint namespace; prohibit the `task` tool in the
+  general-purpose system prompt; re-buffer subagent events on flush failure to
+  avoid losing steps; and fix the lost `loop_capped` stop reason when a
+  subagent's `run_id` is `None`. ([#3931], [#4009], [#3949], [#3980], [#4040],
+  [#4215], [#4161], [#4082], [#4059])
+- **memory:** Harden against null/empty edge cases - skip whitespace-only facts;
+  coerce null `confidence` / `source.confidence` in updates, searches, and the
+  three remaining raw reads; treat explicit `null` `backend_config` values as
+  omitted; fix `KeyError` / `UnboundLocalError` when a fact has no id or the
+  facts list is empty; stop the busy-spin in the debounced update queue; and
+  flush the memory queue on graceful shutdown to prevent loss. ([#3719], [#4074],
+  [#4076], [#4034], [#4217], [#3993], [#3992], [#4073], [#4181])
+- **runs:** Close multi-worker ownership gaps in run atomicity; degrade cancel
+  to lease takeover for multi-worker; keep `create_thread` idempotent when the
+  insert loses a race; read `stop_reason` from runtime context; and persist run
+  duration in checkpoints for history reads. ([#4003], [#4064], [#3800], [#4188],
+  [#4118])
+- **runtime:** Serialize SQLite event-store writes to prevent per-thread
+  sequence collisions; skip hidden human messages in the journal; and drop the
+  silent delta-discard in `_merge_stream_text`. ([#4077], [#3698], [#4085])
+- **gateway:** Attach thread-message feedback by real `event_type`; offload
+  blocking filesystem IO in artifact serving, gateway uploads, and the Discord
+  channel; limit the uploaded-file context manifest; and live-tail malformed
+  Redis reconnect ids. ([#3651], [#3551], [#3935], [#3927], [#3917], [#4012])
+- **config:** Coerce null object config sections to their defaults; honor the
+  unified database configuration in the store and sync checkpointer; and have
+  legacy DB backfill create missing `Index` objects on existing tables. ([#3573],
+  [#3904], [#3994], [#4090])
+- **models:** Apply the `stream_chunk_timeout` default to all `BaseChatOpenAI`
+  subclasses; and normalize `api_base` -> `base_url` for `ChatOpenAI` with a
+  warning on unknown config keys. ([#4102], [#3790])
+- **mcp:** Isolate tool-discovery failures per server; synchronize the
+  session-pool singleton lifecycle; invalidate the tools cache on config content
+  + path (not just newer mtime); validate MCP tool names at load so deferred
+  prompts stay inert; and route tools by source server, not name prefix. ([#3772],
+  [#3797], [#4124], [#4154], [#3812])
+- **skills:** Activate a slash skill once per run, not per model call; close the
+  skill-install security-scan coverage gap; recognize fully deleted skill
+  packages in review CI and remaining `requests` / `httpx` methods as network
+  sinks in SkillScan; reuse the resolved app config in the no-arg skills prompt
+  section; and reload mounted skills without restarting the Gateway. ([#4103],
+  [#3924], [#4169], [#4130], [#4160], [#4264])
+- **sandbox:** Guard the reverse path-translation and output-masking regexes
+  with segment boundaries; handle one-sided line ranges and empty files in
+  `read_file` / `str_replace`; align the AIO bash working directory; use
+  `os.sep` in the reverse-resolve containment check on Windows; normalize
+  Windows backslash paths in bash commands; stop `glob` / `grep` / `ls` from
+  surfacing disabled skills' files; and allow valid heredoc commands in the
+  sandbox audit. ([#4035], [#4053], [#4078], [#4079], [#4051], [#4058], [#3869],
+  [#4096], [#3786])
+- **sandbox:** Synchronize the sandbox provider singleton lifecycle (with
+  concurrency regression tests) and keep k8s calls off the event loop in the
+  provisioner. ([#3730], [#3941])
+- **sandbox:** Align sandbox artifact mounts with the channel user; fix
+  local-dev (`make dev`) on non-root / NFS hosts; reap macOS nginx processes on
+  stop; and fix production Postgres UV-extras detection in Docker. ([#3729],
+  [#3590], [#3828], [#3897])
+- **channels:** Validate the channel provider before resolving its config;
+  dedupe GitHub webhook redeliveries and drop redundant GitHub review-comment
+  webhook fan-out; scope the slash-skill whitelist check to the run's owner;
+  batch Feishu file messages into one thread and dispatch Feishu group commands
+  prefixed with a bot @mention; accept leading @mentions before `/connect` bind
+  codes and don't treat a bare "connect" as a bind command; stop Feishu from
+  creating thread topics and throttle card updates; let the UI runtime channel
+  config win over `config.yaml`; fix `require_mention` gating on
+  whitespace-only `bot_login` / `mention_login`; and guard null quote fields in
+  WeCom. ([#4100], [#4104], [#4131], [#4129], [#3753], [#4229], [#4222], [#4251],
+  [#3810], [#3674], [#4055], [#4069])
+- **frontend:** Preserve messages and durable context across summarization;
+  preserve artifacts and stabilize artifact paths during streaming; resolve
+  relative artifact image paths; retain presented artifacts in the header
+  dropdown; keep orphan tool messages visible; show assistant text during tool
+  steps; reset new chat on client-side navigation; prevent stream cancellation
+  on concurrent submit; fix stale-run reconnect and cancel handling; fix chat
+  math rendering, single-tilde markdown, double reasoning rendering, UTF-16
+  markdown binary classification, and `<memory>` tags in Streamdown; make
+  recent-chat rows fully clickable; validate attachment limits before upload and
+  fix uploaded-file metadata in message copy; fix mobile workspace and
+  accessibility blockers, the card tool-message bug, and side-chat toolbar /
+  panel-button behavior; block unresolved suggestion-template placeholders;
+  refresh notification permissions; show the branch action only for completed
+  turns; enable regenerate in custom agent chats; and generate a fallback title
+  for interrupted first-turn runs. ([#3826], [#3791], [#4094], [#4038], [#3854],
+  [#3880], [#4114], [#3673], [#3878], [#3908], [#3557], [#4245], [#3870], [#3966],
+  [#4209], [#3733], [#3900], [#3944], [#3740], [#3976], [#3959], [#3961], [#3764],
+  [#3768], [#4147], [#3967], [#3874], [#3644])
+- **tui:** Interrupt an active run before `/quit` exits. ([#4235])
+- **harness:** Don't flag the outline as truncated at exactly `MAX_OUTLINE_ENTRIES`
+  headings. ([#3856])
+- **tracing:** Attach Langfuse trace metadata to the goal evaluator. ([#4202])
+- **context:** Resolve the context-compress bug. ([#4065])
+- **threaddata:** Fix `AttributeError` when `runtime.context` is `None`. ([#3989])
+- **goal:** Stop `continuation_count` double-bump during stand-down. ([#4199])
+- **circuit-breaker:** Stop wedging after a non-retriable half-open probe. ([#3991])
+- **github:** Match `allow_authors` logins case-insensitively. ([#4218])
+- **community:** `image_search` now returns the full-resolution image URL. ([#3990])
+
+### Performance
+
+- **runtime:** Index `MemoryRunStore` by `thread_id` and `MemoryRunEventStore`
+  events by `run_id` to avoid O(n) scans. ([#3562], [#3686])
+- **subagents:** Deduplicate streamed AI messages via a seen-id set (O(n²) ->
+  O(n)). ([#3687])
+- **sandbox:** Cache `LocalSandbox` path-rewrite regexes and local-path masking
+  patterns per instance instead of recompiling per search match. ([#3648],
+  [#3713])
+
+### Security
+
+- **prompt-injection:** New input-sanitization middleware defends against
+  prompt-injection, forged framework tags in the input guardrail are blocked,
+  and system context is injected as a `SystemMessage` for role isolation. ([#3662],
+  [#4155], [#3661])
+- **prompt-injection:** HTML-escape untrusted content rendered into model prompts
+  - memory facts and summaries, `SOUL.md`, subagent descriptions, and the
+  conversation block in the memory-update prompt - and neutralize
+  prompt-injection tags in `web_capture` tool results. ([#4028], [#4119], [#4137],
+  [#4157], [#4162], [#4099], [#4060])
+- **secrets:** Scrub inherited secret environment variables (`MYSQL_PWD`,
+  `REDISCLI_AUTH`, abbreviated `*_PASS`, and Postgres `PGPASSFILE`) from the
+  skill environment; request-scoped secrets are bound for both slash-activated
+  and autonomously-invoked skills. ([#4018], [#4026], [#3871], [#3938])
+- **web_fetch:** SSRF guard for self-hosted providers. ([#3942])
+- **guardrails:** An empty allowlist now denies all tools instead of failing
+  open. ([#4067])
+- **authz:** Global skills-management endpoints now require admin; the legacy
+  skills mount is gated by user visibility; artifacts honor a trusted
+  `owner-user-id` header; and the trusted authorization principal is propagated
+  through the runtime. ([#3855], [#3985], [#3982], [#4203])
+- **auth:** Persist the `csrf_token` cookie for the access-token lifetime.
+  ([#3872])
+- **storage:** Stop persisting base64 image data in checkpoint state. ([#4140])
 
 ## [2.0.0] — 2026-06-15
 
@@ -416,6 +678,7 @@ with **180 merged pull requests** since the first 2.0 milestone tag.
   label thrash. ([#3455])
 
 [2.0.0]: https://github.com/bytedance/deer-flow/releases/tag/v2.0.0
+
 [#2329]: https://github.com/bytedance/deer-flow/pull/2329
 [#2556]: https://github.com/bytedance/deer-flow/pull/2556
 [#2582]: https://github.com/bytedance/deer-flow/pull/2582
@@ -484,6 +747,7 @@ with **180 merged pull requests** since the first 2.0 milestone tag.
 [#2989]: https://github.com/bytedance/deer-flow/pull/2989
 [#3002]: https://github.com/bytedance/deer-flow/pull/3002
 [#3005]: https://github.com/bytedance/deer-flow/pull/3005
+[#3033]: https://github.com/bytedance/deer-flow/pull/3033
 [#3058]: https://github.com/bytedance/deer-flow/pull/3058
 [#3069]: https://github.com/bytedance/deer-flow/pull/3069
 [#3074]: https://github.com/bytedance/deer-flow/pull/3074
@@ -495,6 +759,7 @@ with **180 merged pull requests** since the first 2.0 milestone tag.
 [#3153]: https://github.com/bytedance/deer-flow/pull/3153
 [#3174]: https://github.com/bytedance/deer-flow/pull/3174
 [#3176]: https://github.com/bytedance/deer-flow/pull/3176
+[#3191]: https://github.com/bytedance/deer-flow/pull/3191
 [#3200]: https://github.com/bytedance/deer-flow/pull/3200
 [#3228]: https://github.com/bytedance/deer-flow/pull/3228
 [#3233]: https://github.com/bytedance/deer-flow/pull/3233
@@ -510,18 +775,21 @@ with **180 merged pull requests** since the first 2.0 milestone tag.
 [#3313]: https://github.com/bytedance/deer-flow/pull/3313
 [#3335]: https://github.com/bytedance/deer-flow/pull/3335
 [#3342]: https://github.com/bytedance/deer-flow/pull/3342
+[#3377]: https://github.com/bytedance/deer-flow/pull/3377
 [#3393]: https://github.com/bytedance/deer-flow/pull/3393
 [#3397]: https://github.com/bytedance/deer-flow/pull/3397
 [#3398]: https://github.com/bytedance/deer-flow/pull/3398
 [#3408]: https://github.com/bytedance/deer-flow/pull/3408
 [#3410]: https://github.com/bytedance/deer-flow/pull/3410
 [#3411]: https://github.com/bytedance/deer-flow/pull/3411
+[#3412]: https://github.com/bytedance/deer-flow/pull/3412
 [#3413]: https://github.com/bytedance/deer-flow/pull/3413
 [#3417]: https://github.com/bytedance/deer-flow/pull/3417
 [#3421]: https://github.com/bytedance/deer-flow/pull/3421
 [#3423]: https://github.com/bytedance/deer-flow/pull/3423
 [#3425]: https://github.com/bytedance/deer-flow/pull/3425
 [#3426]: https://github.com/bytedance/deer-flow/pull/3426
+[#3428]: https://github.com/bytedance/deer-flow/pull/3428
 [#3430]: https://github.com/bytedance/deer-flow/pull/3430
 [#3433]: https://github.com/bytedance/deer-flow/pull/3433
 [#3434]: https://github.com/bytedance/deer-flow/pull/3434
@@ -553,6 +821,7 @@ with **180 merged pull requests** since the first 2.0 milestone tag.
 [#3502]: https://github.com/bytedance/deer-flow/pull/3502
 [#3503]: https://github.com/bytedance/deer-flow/pull/3503
 [#3505]: https://github.com/bytedance/deer-flow/pull/3505
+[#3506]: https://github.com/bytedance/deer-flow/pull/3506
 [#3508]: https://github.com/bytedance/deer-flow/pull/3508
 [#3512]: https://github.com/bytedance/deer-flow/pull/3512
 [#3514]: https://github.com/bytedance/deer-flow/pull/3514
@@ -568,12 +837,18 @@ with **180 merged pull requests** since the first 2.0 milestone tag.
 [#3534]: https://github.com/bytedance/deer-flow/pull/3534
 [#3535]: https://github.com/bytedance/deer-flow/pull/3535
 [#3548]: https://github.com/bytedance/deer-flow/pull/3548
+[#3551]: https://github.com/bytedance/deer-flow/pull/3551
 [#3553]: https://github.com/bytedance/deer-flow/pull/3553
 [#3554]: https://github.com/bytedance/deer-flow/pull/3554
+[#3556]: https://github.com/bytedance/deer-flow/pull/3556
+[#3557]: https://github.com/bytedance/deer-flow/pull/3557
 [#3559]: https://github.com/bytedance/deer-flow/pull/3559
 [#3561]: https://github.com/bytedance/deer-flow/pull/3561
+[#3562]: https://github.com/bytedance/deer-flow/pull/3562
+[#3566]: https://github.com/bytedance/deer-flow/pull/3566
 [#3569]: https://github.com/bytedance/deer-flow/pull/3569
 [#3570]: https://github.com/bytedance/deer-flow/pull/3570
+[#3573]: https://github.com/bytedance/deer-flow/pull/3573
 [#3575]: https://github.com/bytedance/deer-flow/pull/3575
 [#3577]: https://github.com/bytedance/deer-flow/pull/3577
 [#3578]: https://github.com/bytedance/deer-flow/pull/3578
@@ -583,9 +858,13 @@ with **180 merged pull requests** since the first 2.0 milestone tag.
 [#3582]: https://github.com/bytedance/deer-flow/pull/3582
 [#3583]: https://github.com/bytedance/deer-flow/pull/3583
 [#3584]: https://github.com/bytedance/deer-flow/pull/3584
+[#3585]: https://github.com/bytedance/deer-flow/pull/3585
+[#3590]: https://github.com/bytedance/deer-flow/pull/3590
 [#3591]: https://github.com/bytedance/deer-flow/pull/3591
+[#3592]: https://github.com/bytedance/deer-flow/pull/3592
 [#3599]: https://github.com/bytedance/deer-flow/pull/3599
 [#3600]: https://github.com/bytedance/deer-flow/pull/3600
+[#3601]: https://github.com/bytedance/deer-flow/pull/3601
 [#3602]: https://github.com/bytedance/deer-flow/pull/3602
 [#3605]: https://github.com/bytedance/deer-flow/pull/3605
 [#3606]: https://github.com/bytedance/deer-flow/pull/3606
@@ -594,15 +873,217 @@ with **180 merged pull requests** since the first 2.0 milestone tag.
 [#3611]: https://github.com/bytedance/deer-flow/pull/3611
 [#3623]: https://github.com/bytedance/deer-flow/pull/3623
 [#3624]: https://github.com/bytedance/deer-flow/pull/3624
+[#3627]: https://github.com/bytedance/deer-flow/pull/3627
 [#3629]: https://github.com/bytedance/deer-flow/pull/3629
 [#3631]: https://github.com/bytedance/deer-flow/pull/3631
+[#3637]: https://github.com/bytedance/deer-flow/pull/3637
+[#3644]: https://github.com/bytedance/deer-flow/pull/3644
 [#3646]: https://github.com/bytedance/deer-flow/pull/3646
+[#3648]: https://github.com/bytedance/deer-flow/pull/3648
 [#3649]: https://github.com/bytedance/deer-flow/pull/3649
+[#3651]: https://github.com/bytedance/deer-flow/pull/3651
 [#3654]: https://github.com/bytedance/deer-flow/pull/3654
 [#3657]: https://github.com/bytedance/deer-flow/pull/3657
 [#3658]: https://github.com/bytedance/deer-flow/pull/3658
+[#3661]: https://github.com/bytedance/deer-flow/pull/3661
+[#3662]: https://github.com/bytedance/deer-flow/pull/3662
+[#3663]: https://github.com/bytedance/deer-flow/pull/3663
+[#3665]: https://github.com/bytedance/deer-flow/pull/3665
+[#3673]: https://github.com/bytedance/deer-flow/pull/3673
+[#3674]: https://github.com/bytedance/deer-flow/pull/3674
+[#3675]: https://github.com/bytedance/deer-flow/pull/3675
+[#3685]: https://github.com/bytedance/deer-flow/pull/3685
+[#3686]: https://github.com/bytedance/deer-flow/pull/3686
+[#3687]: https://github.com/bytedance/deer-flow/pull/3687
+[#3698]: https://github.com/bytedance/deer-flow/pull/3698
+[#3709]: https://github.com/bytedance/deer-flow/pull/3709
+[#3711]: https://github.com/bytedance/deer-flow/pull/3711
+[#3713]: https://github.com/bytedance/deer-flow/pull/3713
+[#3714]: https://github.com/bytedance/deer-flow/pull/3714
+[#3718]: https://github.com/bytedance/deer-flow/pull/3718
+[#3719]: https://github.com/bytedance/deer-flow/pull/3719
+[#3729]: https://github.com/bytedance/deer-flow/pull/3729
+[#3730]: https://github.com/bytedance/deer-flow/pull/3730
+[#3733]: https://github.com/bytedance/deer-flow/pull/3733
+[#3740]: https://github.com/bytedance/deer-flow/pull/3740
+[#3753]: https://github.com/bytedance/deer-flow/pull/3753
+[#3760]: https://github.com/bytedance/deer-flow/pull/3760
+[#3764]: https://github.com/bytedance/deer-flow/pull/3764
+[#3768]: https://github.com/bytedance/deer-flow/pull/3768
+[#3769]: https://github.com/bytedance/deer-flow/pull/3769
+[#3770]: https://github.com/bytedance/deer-flow/pull/3770
+[#3772]: https://github.com/bytedance/deer-flow/pull/3772
+[#3775]: https://github.com/bytedance/deer-flow/pull/3775
+[#3786]: https://github.com/bytedance/deer-flow/pull/3786
+[#3790]: https://github.com/bytedance/deer-flow/pull/3790
+[#3791]: https://github.com/bytedance/deer-flow/pull/3791
+[#3797]: https://github.com/bytedance/deer-flow/pull/3797
+[#3800]: https://github.com/bytedance/deer-flow/pull/3800
+[#3809]: https://github.com/bytedance/deer-flow/pull/3809
+[#3810]: https://github.com/bytedance/deer-flow/pull/3810
+[#3812]: https://github.com/bytedance/deer-flow/pull/3812
+[#3821]: https://github.com/bytedance/deer-flow/pull/3821
+[#3826]: https://github.com/bytedance/deer-flow/pull/3826
+[#3828]: https://github.com/bytedance/deer-flow/pull/3828
+[#3837]: https://github.com/bytedance/deer-flow/pull/3837
+[#3843]: https://github.com/bytedance/deer-flow/pull/3843
+[#3845]: https://github.com/bytedance/deer-flow/pull/3845
+[#3854]: https://github.com/bytedance/deer-flow/pull/3854
+[#3855]: https://github.com/bytedance/deer-flow/pull/3855
+[#3856]: https://github.com/bytedance/deer-flow/pull/3856
+[#3858]: https://github.com/bytedance/deer-flow/pull/3858
+[#3860]: https://github.com/bytedance/deer-flow/pull/3860
+[#3866]: https://github.com/bytedance/deer-flow/pull/3866
+[#3869]: https://github.com/bytedance/deer-flow/pull/3869
+[#3870]: https://github.com/bytedance/deer-flow/pull/3870
+[#3871]: https://github.com/bytedance/deer-flow/pull/3871
+[#3872]: https://github.com/bytedance/deer-flow/pull/3872
+[#3874]: https://github.com/bytedance/deer-flow/pull/3874
+[#3877]: https://github.com/bytedance/deer-flow/pull/3877
+[#3878]: https://github.com/bytedance/deer-flow/pull/3878
+[#3880]: https://github.com/bytedance/deer-flow/pull/3880
+[#3881]: https://github.com/bytedance/deer-flow/pull/3881
+[#3883]: https://github.com/bytedance/deer-flow/pull/3883
+[#3885]: https://github.com/bytedance/deer-flow/pull/3885
+[#3886]: https://github.com/bytedance/deer-flow/pull/3886
+[#3887]: https://github.com/bytedance/deer-flow/pull/3887
+[#3889]: https://github.com/bytedance/deer-flow/pull/3889
+[#3897]: https://github.com/bytedance/deer-flow/pull/3897
+[#3900]: https://github.com/bytedance/deer-flow/pull/3900
+[#3902]: https://github.com/bytedance/deer-flow/pull/3902
+[#3904]: https://github.com/bytedance/deer-flow/pull/3904
+[#3906]: https://github.com/bytedance/deer-flow/pull/3906
+[#3907]: https://github.com/bytedance/deer-flow/pull/3907
+[#3908]: https://github.com/bytedance/deer-flow/pull/3908
+[#3912]: https://github.com/bytedance/deer-flow/pull/3912
+[#3917]: https://github.com/bytedance/deer-flow/pull/3917
+[#3920]: https://github.com/bytedance/deer-flow/pull/3920
+[#3924]: https://github.com/bytedance/deer-flow/pull/3924
+[#3926]: https://github.com/bytedance/deer-flow/pull/3926
+[#3927]: https://github.com/bytedance/deer-flow/pull/3927
+[#3928]: https://github.com/bytedance/deer-flow/pull/3928
+[#3931]: https://github.com/bytedance/deer-flow/pull/3931
+[#3934]: https://github.com/bytedance/deer-flow/pull/3934
+[#3935]: https://github.com/bytedance/deer-flow/pull/3935
+[#3938]: https://github.com/bytedance/deer-flow/pull/3938
+[#3940]: https://github.com/bytedance/deer-flow/pull/3940
+[#3941]: https://github.com/bytedance/deer-flow/pull/3941
+[#3942]: https://github.com/bytedance/deer-flow/pull/3942
+[#3944]: https://github.com/bytedance/deer-flow/pull/3944
+[#3945]: https://github.com/bytedance/deer-flow/pull/3945
+[#3949]: https://github.com/bytedance/deer-flow/pull/3949
+[#3950]: https://github.com/bytedance/deer-flow/pull/3950
+[#3951]: https://github.com/bytedance/deer-flow/pull/3951
+[#3956]: https://github.com/bytedance/deer-flow/pull/3956
+[#3959]: https://github.com/bytedance/deer-flow/pull/3959
+[#3961]: https://github.com/bytedance/deer-flow/pull/3961
+[#3966]: https://github.com/bytedance/deer-flow/pull/3966
+[#3967]: https://github.com/bytedance/deer-flow/pull/3967
+[#3969]: https://github.com/bytedance/deer-flow/pull/3969
+[#3976]: https://github.com/bytedance/deer-flow/pull/3976
+[#3980]: https://github.com/bytedance/deer-flow/pull/3980
+[#3982]: https://github.com/bytedance/deer-flow/pull/3982
+[#3985]: https://github.com/bytedance/deer-flow/pull/3985
+[#3986]: https://github.com/bytedance/deer-flow/pull/3986
+[#3988]: https://github.com/bytedance/deer-flow/pull/3988
+[#3989]: https://github.com/bytedance/deer-flow/pull/3989
+[#3990]: https://github.com/bytedance/deer-flow/pull/3990
+[#3991]: https://github.com/bytedance/deer-flow/pull/3991
+[#3992]: https://github.com/bytedance/deer-flow/pull/3992
+[#3993]: https://github.com/bytedance/deer-flow/pull/3993
+[#3994]: https://github.com/bytedance/deer-flow/pull/3994
+[#3996]: https://github.com/bytedance/deer-flow/pull/3996
+[#4003]: https://github.com/bytedance/deer-flow/pull/4003
+[#4004]: https://github.com/bytedance/deer-flow/pull/4004
+[#4008]: https://github.com/bytedance/deer-flow/pull/4008
+[#4009]: https://github.com/bytedance/deer-flow/pull/4009
+[#4012]: https://github.com/bytedance/deer-flow/pull/4012
+[#4016]: https://github.com/bytedance/deer-flow/pull/4016
+[#4017]: https://github.com/bytedance/deer-flow/pull/4017
+[#4018]: https://github.com/bytedance/deer-flow/pull/4018
+[#4023]: https://github.com/bytedance/deer-flow/pull/4023
+[#4024]: https://github.com/bytedance/deer-flow/pull/4024
+[#4026]: https://github.com/bytedance/deer-flow/pull/4026
+[#4028]: https://github.com/bytedance/deer-flow/pull/4028
+[#4033]: https://github.com/bytedance/deer-flow/pull/4033
+[#4034]: https://github.com/bytedance/deer-flow/pull/4034
+[#4035]: https://github.com/bytedance/deer-flow/pull/4035
+[#4036]: https://github.com/bytedance/deer-flow/pull/4036
+[#4038]: https://github.com/bytedance/deer-flow/pull/4038
+[#4040]: https://github.com/bytedance/deer-flow/pull/4040
+[#4051]: https://github.com/bytedance/deer-flow/pull/4051
+[#4052]: https://github.com/bytedance/deer-flow/pull/4052
+[#4053]: https://github.com/bytedance/deer-flow/pull/4053
+[#4055]: https://github.com/bytedance/deer-flow/pull/4055
+[#4058]: https://github.com/bytedance/deer-flow/pull/4058
+[#4059]: https://github.com/bytedance/deer-flow/pull/4059
+[#4060]: https://github.com/bytedance/deer-flow/pull/4060
+[#4064]: https://github.com/bytedance/deer-flow/pull/4064
+[#4065]: https://github.com/bytedance/deer-flow/pull/4065
+[#4067]: https://github.com/bytedance/deer-flow/pull/4067
+[#4069]: https://github.com/bytedance/deer-flow/pull/4069
+[#4072]: https://github.com/bytedance/deer-flow/pull/4072
+[#4073]: https://github.com/bytedance/deer-flow/pull/4073
+[#4074]: https://github.com/bytedance/deer-flow/pull/4074
+[#4076]: https://github.com/bytedance/deer-flow/pull/4076
+[#4077]: https://github.com/bytedance/deer-flow/pull/4077
+[#4078]: https://github.com/bytedance/deer-flow/pull/4078
+[#4079]: https://github.com/bytedance/deer-flow/pull/4079
+[#4080]: https://github.com/bytedance/deer-flow/pull/4080
+[#4082]: https://github.com/bytedance/deer-flow/pull/4082
+[#4085]: https://github.com/bytedance/deer-flow/pull/4085
+[#4090]: https://github.com/bytedance/deer-flow/pull/4090
+[#4094]: https://github.com/bytedance/deer-flow/pull/4094
 [#4095]: https://github.com/bytedance/deer-flow/issues/4095
+[#4096]: https://github.com/bytedance/deer-flow/pull/4096
 [#4098]: https://github.com/bytedance/deer-flow/pull/4098
+[#4099]: https://github.com/bytedance/deer-flow/pull/4099
+[#4100]: https://github.com/bytedance/deer-flow/pull/4100
+[#4102]: https://github.com/bytedance/deer-flow/pull/4102
+[#4103]: https://github.com/bytedance/deer-flow/pull/4103
+[#4104]: https://github.com/bytedance/deer-flow/pull/4104
+[#4108]: https://github.com/bytedance/deer-flow/pull/4108
+[#4114]: https://github.com/bytedance/deer-flow/pull/4114
+[#4115]: https://github.com/bytedance/deer-flow/pull/4115
+[#4118]: https://github.com/bytedance/deer-flow/pull/4118
+[#4119]: https://github.com/bytedance/deer-flow/pull/4119
+[#4122]: https://github.com/bytedance/deer-flow/pull/4122
+[#4124]: https://github.com/bytedance/deer-flow/pull/4124
+[#4129]: https://github.com/bytedance/deer-flow/pull/4129
+[#4130]: https://github.com/bytedance/deer-flow/pull/4130
+[#4131]: https://github.com/bytedance/deer-flow/pull/4131
+[#4136]: https://github.com/bytedance/deer-flow/pull/4136
+[#4137]: https://github.com/bytedance/deer-flow/pull/4137
+[#4140]: https://github.com/bytedance/deer-flow/pull/4140
+[#4141]: https://github.com/bytedance/deer-flow/pull/4141
+[#4143]: https://github.com/bytedance/deer-flow/pull/4143
 [#4146]: https://github.com/bytedance/deer-flow/pull/4146
+[#4147]: https://github.com/bytedance/deer-flow/pull/4147
+[#4154]: https://github.com/bytedance/deer-flow/pull/4154
+[#4155]: https://github.com/bytedance/deer-flow/pull/4155
+[#4157]: https://github.com/bytedance/deer-flow/pull/4157
+[#4160]: https://github.com/bytedance/deer-flow/pull/4160
+[#4161]: https://github.com/bytedance/deer-flow/pull/4161
+[#4162]: https://github.com/bytedance/deer-flow/pull/4162
+[#4166]: https://github.com/bytedance/deer-flow/pull/4166
+[#4169]: https://github.com/bytedance/deer-flow/pull/4169
+[#4181]: https://github.com/bytedance/deer-flow/pull/4181
+[#4188]: https://github.com/bytedance/deer-flow/pull/4188
 [#4190]: https://github.com/bytedance/deer-flow/pull/4190
 [#4192]: https://github.com/bytedance/deer-flow/issues/4192
+[#4193]: https://github.com/bytedance/deer-flow/pull/4193
+[#4199]: https://github.com/bytedance/deer-flow/pull/4199
+[#4202]: https://github.com/bytedance/deer-flow/pull/4202
+[#4203]: https://github.com/bytedance/deer-flow/pull/4203
+[#4209]: https://github.com/bytedance/deer-flow/pull/4209
+[#4215]: https://github.com/bytedance/deer-flow/pull/4215
+[#4217]: https://github.com/bytedance/deer-flow/pull/4217
+[#4218]: https://github.com/bytedance/deer-flow/pull/4218
+[#4219]: https://github.com/bytedance/deer-flow/pull/4219
+[#4222]: https://github.com/bytedance/deer-flow/pull/4222
+[#4229]: https://github.com/bytedance/deer-flow/pull/4229
+[#4235]: https://github.com/bytedance/deer-flow/pull/4235
+[#4245]: https://github.com/bytedance/deer-flow/pull/4245
+[#4246]: https://github.com/bytedance/deer-flow/pull/4246
+[#4251]: https://github.com/bytedance/deer-flow/pull/4251
+[#4264]: https://github.com/bytedance/deer-flow/pull/4264