diff --git a/CHANGELOG.md b/CHANGELOG.md
index dd4156cecb..b5d48a1f07 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -12,7 +12,7 @@ _Living section — bullets land here as PRs merge into `release/v3.8.47` (paral
 
 ### ✨ New Features
 
-- **feat(codex):** Codex CLI compatibility shim — the Responses API `response.created`/`response.in_progress`/`response.completed` payloads now carry a `model` field (previously absent), and for Codex-CLI-originated requests it echoes the client-requested, effort-suffixed model id (e.g. `gpt-5.5-xhigh`) instead of the bare upstream id (`gpt-5.5`), so the Codex CLI status line/model button shows the active reasoning effort ([#3697](https://github.com/diegosouzapw/OmniRoute/issues/3697)). `openaiToOpenAIResponsesResponse` (`open-sse/translator/response/openai-responses.ts`) now threads the upstream model into the Responses event objects; a new `isCodexOriginatedHeaders()` (`open-sse/config/codexIdentity.ts`, reusing PR #3481's `originator`/User-Agent detection) makes chatCore's existing opt-in `echoRequestedModelName` (#1311) model-echo pipeline fire automatically for Codex clients regardless of the setting, detected by request headers so it still applies when `codex/gpt-5.5-xhigh` is routed through a combo to a non-codex upstream; `echoModelInObject`/`echoModelInSseLine` (`open-sse/services/responseModelEcho.ts`) now also rewrite the nested `response.model` field the Responses API uses. `/v1/models` still returns `models: []` for Codex (unchanged). Regression guard: `tests/unit/codex-effort-model-echo-3697.test.ts`.
+- **feat(dashboard):** sidebar quick-filter — a search input at the top of the expanded dashboard sidebar (`src/shared/components/Sidebar.tsx`) filters nav sections/groups/items client-side by label as you type, reusing the existing `common.search`/`common.noResults` i18n keys (zero new locale edits) and the shared `Input` `icon="search"` pattern; matching sections auto-expand while searching (bypassing the accordion/pin state) and collapse back to normal once the query is cleared. Pure filtering logic extracted into `filterSidebarSectionsByQuery()` (`src/shared/utils/sidebarSearch.ts`) for isolated unit testing. Regression guard: `tests/unit/sidebar-search-filter.test.ts`, `src/shared/components/Sidebar.search.test.tsx`. (#4013 — thanks @crochabe-cyber)
 - **feat(combo):** `auto/*` combos gain a strict budget-cap fallback policy — `X-OmniRoute-Budget-Fallback: strict` (or the persisted `config.budgetFallback: "strict"`) makes an over-budget request fail fast with `HTTP 402` instead of the previous silent fallback to the globally cheapest candidate, which could still exceed the cap. The default (`cheapest`) preserves existing behavior. Builds on the existing `X-OmniRoute-Budget`/`X-OmniRoute-Mode` per-request controls (#6023/#6024/#6025), consolidated into `resolveRequestAutoControls()`. Regression guard: `tests/unit/auto-combo-budget-fallback-3470.test.ts`. (#3470)
 - **Provider/model param filters**: config-driven parameter denylist/allowlist per provider/model with auto-learn from upstream 400s (#6649 — thanks @ThongAccount, closes #6625)
 - **Per-combo reasoning token buffer toggle**: the combo builder now exposes an explicit checkbox for the `#3587` reasoning-model `max_tokens` buffer, defaulting to the existing enabled behavior, so a combo can opt out without hand-editing raw JSON config (#6702 — thanks @xz-dev)
diff --git a/changelog.d/features/6820-codex-effort-model-echo.md b/changelog.d/features/6820-codex-effort-model-echo.md
new file mode 100644
index 0000000000..d9646f81a3
--- /dev/null
+++ b/changelog.d/features/6820-codex-effort-model-echo.md
@@ -0,0 +1 @@
+- **feat(codex):** Codex CLI compatibility shim — the Responses API `response.created`/`response.in_progress`/`response.completed` payloads now carry a `model` field (previously absent), and for Codex-CLI-originated requests it echoes the client-requested, effort-suffixed model id (e.g. `gpt-5.5-xhigh`) instead of the bare upstream id (`gpt-5.5`), so the Codex CLI status line/model button shows the active reasoning effort ([#3697](https://github.com/diegosouzapw/OmniRoute/issues/3697)). `openaiToOpenAIResponsesResponse` (`open-sse/translator/response/openai-responses.ts`) now threads the upstream model into the Responses event objects; a new `isCodexOriginatedHeaders()` (`open-sse/config/codexIdentity.ts`, reusing PR #3481's `originator`/User-Agent detection) makes chatCore's existing opt-in `echoRequestedModelName` (#1311) model-echo pipeline fire automatically for Codex clients regardless of the setting, detected by request headers so it still applies when `codex/gpt-5.5-xhigh` is routed through a combo to a non-codex upstream; `echoModelInObject`/`echoModelInSseLine` (`open-sse/services/responseModelEcho.ts`) now also rewrite the nested `response.model` field the Responses API uses. `/v1/models` still returns `models: []` for Codex (unchanged). Regression guard: `tests/unit/codex-effort-model-echo-3697.test.ts`.