[Chore] Prepare v3.55.0 release (#259)

* chore: prepare v3.55.0 release

* chore: genericize release announcement highlight keys

* chore: remove v3.55.0 release artwork

---------

Co-authored-by: Roomote <roomote@roocode.com>

Author: roomote[bot]

CHANGELOG.md

@@ -4,6 +4,40 @@ All notable changes to Zoo Code will be documented in this file.
 
 The format is based on [Keep a Changelog](https://keepachangelog.com/en/1.1.0/), and Zoo Code uses [Semantic Versioning](https://semver.org/spec/v2.0.0.html).
 
+## 3.55.0
+
+### Minor Changes
+
+- Add Xiaomi MiMo as a first-class API provider (#80 by @capitanfeeder, PR #81 by @capitanfeeder)
+- Merge the Roo Code upstream sunset into Zoo Code and pull in related handoff updates (PR #123 by @edelauna)
+- Fix Gemini requests when users enable the full MCP tool set (PR #148 by @app/roomote)
+- Fix OpenAI requests by omitting temperature for models that do not support it (#215 by @marty-a11y, PR #233 by @proyectoauraorg)
+- Fix the MCP OAuth callback page garbled text after sign-in (#217 by @mabiuroot-art, PR #218 by @app/roomote)
+- Fix single-tilde Markdown so normal text no longer appears struck through (#154 by @slashedstar, PR #240 by @proyectoauraorg)
+- Add deterministic xAI provider end-to-end coverage (PR #149 by @app/roomote)
+- Update the default Z.AI model to GLM-4.7 (PR #90 by @bryce-hoehn)
+- Fix GLM models reserving too much output context by default (PR #160 by @app/roomote)
+- Fix the Vertex AI region dropdown so eu and us multi-region endpoints appear correctly (PR #170 by @app/roomote)
+- Fix the webview diagnostics temp file prefix (#193 by @proyectoauraorg, PR #226 by @proyectoauraorg)
+- Fix Shift+Enter sending chat messages when Ctrl/Cmd+Enter mode is enabled (PR #199 by @app/roomote)
+- Fix recursive `list_files` omitting nested files in temp workspaces (PR #91 by @app/roomote)
+- Fix the welcome screen (#162 by @navedmerchant, PR #163 by @navedmerchant)
+- Refactor core monolith helpers (PR #27 by @doctarock)
+- Unskip read-file tests (PR #53 by @edelauna)
+- Improve core coverage CI and merge queue readiness (PR #207 by @app/roomote)
+- Unskip the VS Code e2e replay for mutating tools (PR #92 by @app/roomote)
+- Unskip the VS Code e2e replay for `use_mcp_tool` (PR #93 by @app/roomote)
+- Reduce Renovate review noise (PR #144 by @app/roomote)
+- Let Renovate open grouped updates on the normal bot cadence (PR #167 by @app/roomote)
+- Add comprehensive unit tests for the MiMoHandler provider (PR #210 by @proyectoauraorg)
+- Add unit tests for the SwitchModeTool (PR #211 by @proyectoauraorg)
+- Update `yaml` to `2.8.3` for a security fix (PR #176 by @app/renovate)
+- Update `axios` to `1.15.2` for a security fix (PR #177 by @app/renovate)
+- Update `mammoth` to `1.11.0` for a security fix (PR #180 by @app/renovate)
+- Update `undici` to `6.24.0` for a security fix (PR #183 by @app/renovate)
+- Update `@ai-sdk/amazon-bedrock` to `4.0.107` (PR #55 by @app/renovate)
+- Update `@ai-sdk/baseten` to `1.0.50` (PR #56 by @app/renovate)
+
 ## 3.54.1
 
 ### Patch Changes

README.md

@@ -53,17 +53,18 @@
 You can find a quick guide for migrating from Roo Code to Zoo Code in the [Roo→Zoo migration guide](https://docs.zoocode.dev/roo-to-zoo-migration). We plan to try and help users as they transition over, we have our [Reddit](https://www.reddit.com/r/ZooCode) and [Discord](https://discord.gg/VxfP4Vx3gX)
 for this exact support, so if you are having problems or if you have question, jump on and ask.
 
-## What's New in v3.54.1
+## What's New in v3.55.0
 
-**Initial Zoo Code release** — establishes Zoo Code as an independent extension
-on the VS Code Marketplace under `ZooCodeOrganization.zoo-code`, with
-pre-release builds published automatically on every merge to `main`.
+**Zoo Code's first feature release** builds on the marketplace handoff with a
+new provider, the upstream sunset merge, and a round of user-facing fixes
+across chat, provider settings, and rendering.
 
-- Add GPT-5.5 support via the OpenAI Codex provider
-- Add Claude Opus 4.7 support on Vertex AI
-- Add previous checkpoint navigation controls in chat
-- DeepSeek V4 support with dynamic model fetching
-- MCP OAuth client support
+- Add Xiaomi MiMo as a first-class API provider
+- Pull in the upstream Roo Code sunset merge and related platform updates
+- Fix MCP sign-in copy, Gemini full-tool requests, and OpenAI temperature
+  handling for unsupported models
+- Fix Markdown single-tilde rendering and diagnostics temp-file naming
+- Improve provider defaults and region coverage for Z.AI, GLM, and Vertex AI
 
 <details>
   <summary>🌐 Available languages</summary>
@@ -87,7 +88,7 @@ pre-release builds published automatically on every merge to `main`.
 - [简体中文](locales/zh-CN/README.md)
 - [繁體中文](locales/zh-TW/README.md)
 - ...
-      </details>
+  </details>
 
 ---