[rime-cli] Add CLI changelog page and version info

cli-reference/changelog.mdx

@@ -0,0 +1,40 @@
+---
+title: Changelog
+description: Release notes for the Rime CLI.
+icon: list
+---
+
+Use [`rime upgrade`](/cli-reference/reference#upgrade) to update to the latest version, or [`rime changelog`](/cli-reference/reference#changelog) to view this in the terminal.
+
+<Update label="v0.5.0 — March 25, 2026">
+- `upgrade` command for self-updating the CLI (`rime upgrade`)
+- `changelog` command to view release notes in the terminal (`rime changelog --since v0.4.0`)
+- Background update checker — notifies you on stderr when a newer version is available
+- Semantic ANSI colors for better terminal theme compatibility
+- `--days` flag on `rime usage`
+- `speedtest` UX improvements and `default_env` config option
+</Update>
+
+<Update label="v0.4.0 — March 12, 2026">
+- Simplified waveform display in `tts` and `play`
+- Updated `hello` command to use Vespera voice
+</Update>
+
+<Update label="v0.3.0 — March 4, 2026">
+- Animated and truncated text for long utterances in `tts` and `play`
+- `config` subcommands: `add`, `list`, `show`, `rm`, `edit`, `default`
+- `key` command to display the current API key
+- Additional flags for `speedtest`: `--speaker`, `--lang`, `--text`
+</Update>
+
+<Update label="v0.2.0 — February 27, 2026">
+- `usage` command for viewing API usage history
+- Model-specific TTS parameters (`--temperature`, `--top-p`, `--repetition-penalty`, etc.)
+- Improved `curl` command options
+- Rime unicode logo in terminal output
+</Update>
+
+<Update label="v0.1.0 — February 20, 2026">
+- Initial release (renamed from cli-go)
+- Core commands: `tts`, `play`, `curl`, `login`, `logout`, `config`, `speedtest`
+</Update>

cli-reference/overview.mdx

@@ -6,6 +6,8 @@ icon: "house"
 
 The Rime CLI is a command-line tool for synthesizing and listening to AI speech. It supports streaming audio generation, live playback with waveform visualization, and multiple output formats.
 
+Current version: **v0.5.0** — [see changelog](/cli-reference/changelog)
+
 ## Installation
 
 <CodeGroup>
@@ -42,4 +44,10 @@ brew tap rimelabs/rime-cli && brew install rime-cli
   <Card title="Troubleshooting" icon="circle-exclamation" href="/cli-reference/troubleshooting">
     Fix common errors and installation issues
   </Card>
+  <Card title="rime upgrade" icon="arrow-up" href="/cli-reference/reference#upgrade">
+    Update the CLI to the latest version
+  </Card>
+  <Card title="Changelog" icon="list" href="/cli-reference/changelog">
+    Release notes and version history
+  </Card>
 </CardGroup>

docs.json

@@ -211,6 +211,12 @@
               "cli-reference/rime-monitoring"
             ]
           },
+          {
+            "group": "Changelog",
+            "pages": [
+              "cli-reference/changelog"
+            ]
+          },
           {
             "group": "Reference",
             "pages": [