diff --git a/CHANGELOG.md b/CHANGELOG.md
index 4d42844c..edaf5edc 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -68,6 +68,23 @@ and this project adheres to [Semantic Versioning](https://semver.org/spec/v2.0.0
 - **CVE-2026-8723 in feishu-bridge.** Bumped `qs` to `>=6.15.2` in the
   Feishu bridge integration (#2198).
 
+### Community
+
+Thanks to new contributors whose PRs landed in this release:
+**@donglovejava** (#2154, #2163, #2166, #2167, #2168),
+**@encyc** (#2152),
+**@saieswar237** (#2178),
+**@sximelon** (#2174),
+**@nanookclaw** (#2135),
+**@Sskift** (#2119),
+**@xin1104** (#2105),
+**@mrluanma** (#2059),
+**@Lellansin** (#2055),
+**@zhuangbiaowei** (#2145),
+**@aboimpinto** (#1872),
+and continuing contributors **@reidliu41**, **@cyq1017**, **@idling11**,
+**@h3c-hexin**, **@wdw8276**, and **@zlh124**.
+
 ## [0.8.45] - 2026-05-25
 
 ### Added
diff --git a/crates/tui/CHANGELOG.md b/crates/tui/CHANGELOG.md
index 7b8fee06..edaf5edc 100644
--- a/crates/tui/CHANGELOG.md
+++ b/crates/tui/CHANGELOG.md
@@ -7,22 +7,83 @@ and this project adheres to [Semantic Versioning](https://semver.org/spec/v2.0.0
 
 ## [Unreleased]
 
+## [0.8.46] - 2026-05-26
+
 ### Added
 
 - **`CODEWHALE_*` env aliases.** `CODEWHALE_PROVIDER`, `CODEWHALE_MODEL`,
   and `CODEWHALE_BASE_URL` are public product-scoped aliases that take
   precedence over the legacy `DEEPSEEK_*` forms. The `DEEPSEEK_*` names
-  remain accepted for back-compat. Recommended setup paths are
-  `codewhale --provider <name>`, `provider = "<name>"` in
-  `~/.codewhale/config.toml`, or `CODEWHALE_PROVIDER=<name>`.
+  remain accepted for back-compat.
+- **Platform archive bundles.** Release artifacts now ship as per-platform
+  archives (`tar.gz` for Linux/macOS, `.zip` for Windows) containing both
+  `codewhale` and `codewhale-tui` binaries plus an install script. No more
+  downloading two loose files and guessing which ones to pick (#2193).
+- **Windows portable archive.** `codewhale-windows-x64-portable.zip` ships
+  the two binaries without an install script for USB-stick distribution
+  (#2193).
+- **Web install download tile.** The website install page now shows a
+  platform-aware download tile with arch detection, SHA256 checksum
+  display, and China mirror links, instead of burying the download behind
+  the Cargo instructions (#2192).
+- **Whale dark palette refresh.** Better contrast and layer separation
+  across the TUI color scheme (#2197).
+- **Auto-collapse finished sub-agents.** Completed sub-agent sessions now
+  collapse automatically in the sidebar, reducing noise during long
+  sessions (#2195).
+- **Shell-running status chip.** A `⏳ shell running` chip appears in the
+  TUI footer while background shell tasks are active (#2194).
+- **Sandbox process hardening (Linux).** `PR_SET_DUMPABLE=0`,
+  `NO_NEW_PRIVS`, and `RLIMIT_CORE=0` are applied at shell startup to
+  harden child processes against inspection and privilege escalation
+  (#2183).
+- **CONTRIBUTING.md cross-links.** Issue and PR templates are now
+  cross-linked from CONTRIBUTING.md to improve contributor onboarding
+  (#2203).
 
 ### Changed
 
-- **DeepSeek-first focus.** v0.8.45.x refocuses on delivering the
-  highest-quality experience on DeepSeek first. The project's broader
-  goal remains to become a strong harness for open-source and open-weight
-  coding models, but additional first-class provider paths are planned
-  for v0.9.0 after the core DeepSeek workflow is solid.
+- **DeepSeek-first focus.** v0.8.46 refocuses on delivering the
+  highest-quality experience on DeepSeek first. Additional first-class
+  provider paths are planned for v0.9.0 after the core DeepSeek workflow
+  is solid.
+
+### Fixed
+
+- **Model name casing preserved.** `normalize_model_name_for_provider` no
+  longer lowercases user-set model names such as `DeepSeek-V4-Flash`,
+  preventing API lookup failures on case-sensitive backends (#2109).
+- **Esc in model picker applies selection.** Dismissing the model picker
+  with Esc now applies the last-highlighted choice instead of reverting
+  (#2196).
+- **Web install downloads both binaries.** The `install-binary.tsx`
+  snippet now fetches both `codewhale` and `codewhale-tui`, fixing the
+  `MISSING_COMPANION_BINARY` trap on fresh npm installs (#2191).
+- **`grep_files` skips large directories.** The pure-Rust search tool
+  now skips known-large directories (`.git`, `node_modules`, `target`)
+  before walking, preventing hangs on deep or slow filesystems.
+- **Version-update hint uses semver.** The update notification in the
+  footer now compares versions semantically instead of lexicographically,
+  so `0.8.10 > 0.8.9` is recognized correctly.
+- **CVE-2026-8723 in feishu-bridge.** Bumped `qs` to `>=6.15.2` in the
+  Feishu bridge integration (#2198).
+
+### Community
+
+Thanks to new contributors whose PRs landed in this release:
+**@donglovejava** (#2154, #2163, #2166, #2167, #2168),
+**@encyc** (#2152),
+**@saieswar237** (#2178),
+**@sximelon** (#2174),
+**@nanookclaw** (#2135),
+**@Sskift** (#2119),
+**@xin1104** (#2105),
+**@mrluanma** (#2059),
+**@Lellansin** (#2055),
+**@zhuangbiaowei** (#2145),
+**@aboimpinto** (#1872),
+and continuing contributors **@reidliu41**, **@cyq1017**, **@idling11**,
+**@h3c-hexin**, **@wdw8276**, and **@zlh124**.
 
 ## [0.8.45] - 2026-05-25