771-8bit · Nov 5, 2026 · Nov 4, 2026 · Nov 4, 2026 · Nov 4, 2026 · Nov 4, 2026
diff --git a/CHANGELOG.md b/CHANGELOG.md
@@ -9,6 +9,78 @@ History before 0.1.0 is not reconstructed here; see the change log in
 
 ## [Unreleased]
 
+## [0.1.0-beta.2] - 2026-11-04 (pre-release)
+
+Fixes for the first beta reports (issues #3 to #7) and a few problems found while fixing them,
+and behavior of the C# version (0.0.8 and earlier) that the rewrite had lost.
+Windows build: NSIS installer only, as for beta.1.
+
+### Added
+
+- **Theme** setting (Dark / Light / System) in the Settings panel; all windows follow it. Before,
+  the app was dark-only while native widgets followed the OS theme ([#6]).
+- Save and Copy include the timestamps when Timestamp is ON in the ASCII view: every line starts
+  with its time (`HH:MM:SS.d`, the same as on screen) and the chosen separator. With Timestamp
+  OFF, Save writes the received bytes unchanged as before ([#4]).
+- Plotter: names and values joined by `=`, `:` or a space are recognized, separated by commas,
+  tabs or spaces (`V=30.58 I=0.82`, `temp = 25, hum = 60`, `temp 25.5 hum 60`). A number followed
+  by a short unit (`11ms`, `3.3V`) is read as the number. Values that are neither a number nor a
+  word (`0.825/0.797`) and empty values (`key=`) no longer create channels.
+- **Show CR/LF** and **Show NUL** in the ASCII view, both off by default (C#: Show [CRLF] /
+  Show [NUL]). Off hides CR and LF, shows TAB as a real tab and hides NUL; copying a selection
+  still keeps the line breaks. Before, every line ended in visible CR LF symbols.
+- Timestamps in the Hex view: each 16-byte row shows the time of its first byte, and Copy
+  includes them. Save in the Hex view still writes the received bytes.
+- "Copied" / "Saved" / "Nothing to copy" confirmation that disappears by itself.
+
+### Changed
+
+- Settings are remembered across restarts: serial settings, the last chosen port, Send and Receive
+  options, the plotter's window width and downsampling mode, and the theme. The send history and
+  the window size/position are not stored ([#7]).
+- Opening the port dropdown re-enumerates the ports first, so a device plugged in a moment ago
+  is listed ([#5]).
+- The port list fills the width left by the controls on its right, which are right-aligned; its
+  width no longer depends on the device names. The Auto Connect status moved to the MCP Server
+  row.
+- The window title bar follows the chosen theme.
+- **Auto Reconnect is now Auto Connect**, as in the C# version: while it is on and no port is
+  open, the app connects to the selected port as soon as it can, also at startup and when the
+  device is plugged in for the first time. Disconnect (or Cancel while waiting) turns it off.
+  When the port is listed but cannot be opened (in use by another program), it says so and
+  retries every second. The setting starts off; an earlier Auto Reconnect setting is not
+  carried over. The retry interval is 200 ms (was 500 ms).
+- Defaults for new installs (saved settings are kept): **DTR and RTS off** (were on), so that
+  connecting resets neither an Arduino Uno (DTR) nor an ESP32 (RTS). Boards with native USB may
+  need DtrEnable ticked; a **?** next to DtrEnable / RtsEnable explains this on hover. The other
+  defaults match the C# version: no line ending (was LF), Send with Enter on (was off), Line
+  Wrap off (was on), timestamp separator `>` (new option).
+- The Send box uses a larger font than the receive view, as in the C# version.
+- Port names no longer repeat the port: `USB Serial Port (COM5)` instead of
+  `USB Serial Port (COM5) (COM5)`.
+
+### Fixed
+
+- Auto Scroll stopped short of the newest line when Line Wrap made lines span several rows, and
+  for very large captures ([#3]).
+- Reopening the plotter window could show "Peak" while the backend still used "Average".
+- The Hex view could not scroll to the newest rows of very large captures (more than about 8 MB).
+- A plotter line with `name=value` pairs was taken as the CSV header when it came first.
+- Opening the plotter after data had arrived drew all of that data as a single point at time 0;
+  it is now drawn at the times it was received.
+- A lone CR now ends a line, as in the C# version; devices that end lines with CR only were
+  shown as one long line.
+- Hex send accepts the C# separators and one-digit bytes (`0A-0B`, `1,2,3`, `0x41`). Before,
+  `0A-0B` was rejected and `12 3 4` was silently sent as `12 34`. An invalid byte is now named
+  under the input instead of in a blocking dialog.
+- Input that is only line breaks is no longer added to the send history.
+
+[#3]: https://github.com/771-8bit/SerialMonitorEssential/issues/3
+[#4]: https://github.com/771-8bit/SerialMonitorEssential/issues/4
+[#5]: https://github.com/771-8bit/SerialMonitorEssential/issues/5
+[#6]: https://github.com/771-8bit/SerialMonitorEssential/issues/6
+[#7]: https://github.com/771-8bit/SerialMonitorEssential/issues/7
+
 ## [0.1.0-beta.1] - 2026-11-04 (pre-release)
 
 First beta of the Tauri/Rust version, released to validate it in real use. It contains

diff --git a/README.md b/README.md
@@ -23,15 +23,23 @@ did all of that, so I built this one. It is a Tauri/Rust rewrite of an earlier C
 
 - Lossless receive at high line rates: data is kept in fixed-size chunks and spilled to disk,
   so long captures do not grow memory without bound
-- Hex / ASCII views with virtual scrolling, timestamps, line wrap and visible control characters
+- Hex / ASCII views with virtual scrolling, timestamps (in both views), line wrap, and CR / LF /
+  NUL shown as symbols when you want to see them. CR, LF and CRLF all end a line
 - Regex search and filter over the whole capture
-- Send text or hex, with a selectable line ending (none / CR / LF / CRLF) and input history
+- Send text or hex (`48 65 6C`, `0A-0B`, `1,2,3`), with a selectable line ending
+  (none / CR / LF / CRLF) and input history (↑ / ↓)
 - Any baud rate the driver accepts (including non-standard ones), DTR / RTS control, hardware
   or software flow control
-- **Auto Reconnect**: when the board resets or is unplugged and comes back on the same port, the
-  app reopens it and keeps adding to the same capture, so the output from before the reset is
-  not lost
-- Save the capture as a binary file, or copy it as hex or ASCII
+- **Auto Connect**: connects to the selected port whenever it is available — at startup, when
+  the board is plugged in, and when it comes back after a reset or unplug. The capture
+  continues, so the output from before the reset is not lost. Disconnect turns it off
+- Save the capture as a binary file or as text with timestamps, or copy it as hex or ASCII
+
+DTR and RTS are off by default, so connecting does not reset the board (an Arduino Uno resets
+when DTR turns on, as with the Arduino IDE; an ESP32 is held in reset by RTS without DTR).
+Boards with native USB (Leonardo, Raspberry Pi Pico, ESP32-S3 USB) may send nothing until DTR
+is on: tick **DtrEnable** for those. Hover the **?** next to the checkboxes for details. The
+other defaults match the earlier C# version: no line ending, Send with Enter on.
 
 ### Plotter
 
@@ -188,15 +196,45 @@ tests run in CI, plus a smoke test under WSL2. Wayland and HiDPI have not been t
 
 ## Building from source
 
-Prerequisites: Node.js 20+, stable Rust, and the
-[Tauri prerequisites](https://v2.tauri.app/start/prerequisites/) for your OS.
+### 1. Prerequisites
+
+- [Node.js](https://nodejs.org/) 20 or later
+- Stable Rust via [rustup](https://rustup.rs/) (`rustup update stable` if you already have it)
+- The [Tauri prerequisites](https://v2.tauri.app/start/prerequisites/) for your OS:
+  - **Windows:** Microsoft C++ Build Tools with the "Desktop development with C++" workload.
+    WebView2 is already part of Windows 10 (recent updates) and 11.
+  - **Ubuntu 22.04+:**
+
+    ```sh
+    sudo apt install libwebkit2gtk-4.1-dev libgtk-3-dev libayatana-appindicator3-dev \
+      librsvg2-dev libxdo-dev libsoup-3.0-dev libjavascriptcoregtk-4.1-dev libudev-dev \
+      build-essential pkg-config libssl-dev
+    sudo usermod -aG dialout $USER   # serial port access; log in again afterwards
+    ```
+
+### 2. Run from source
 
 ```sh
+git clone https://github.com/771-8bit/SerialMonitorEssential.git
+cd SerialMonitorEssential
 npm install
-npm run tauri dev       # run in development mode (set RUST_LOG=debug for verbose logs)
-npm run tauri build     # build installers into src-tauri/target/release/bundle
+npm run tauri dev
+```
+
+`npm run tauri dev` starts the frontend dev server and builds and launches the app. The first run
+compiles all Rust dependencies and takes a few minutes; later runs are incremental. Changes to the
+frontend (`src/`) reload in place, changes to the backend (`src-tauri/`) rebuild and restart the app
+(add `-- --no-watch` to turn that off). Set `RUST_LOG=debug` for verbose backend logs.
 
-# the same checks CI runs
+### 3. Build an installer
+
+```sh
+npm run tauri build     # installers in src-tauri/target/release/bundle (nsis/, msi/, deb/, appimage/)
+```
+
+### 4. Checks (the same as CI)
+
+```sh
 npm run type-check && npm run lint && npm run format:check && npm test
 cd src-tauri && cargo fmt -- --check && cargo clippy --all-targets -- -D warnings && cargo test
 ```

diff --git a/docs/07_plotter_spec.md b/docs/07_plotter_spec.md
@@ -39,7 +39,7 @@ Arduino IDE互換の形式を基本とし、拡張形式もサポートする。
 |------|------|-----|
 | **単一値** | 1行に1つの数値 + 改行 | `123.45\r\n` |
 | **複数値 (CSV)** | カンマ/タブ/スペース区切り | `10,20,30\r\n` または `10\t20\t30\r\n` |
-| **ラベル付き値** | `label:value` 形式 | `temp:25.5,humidity:60\r\n` |
+| **ラベル付き値** | `label:value` / `label=value` / `label value` 形式 | `temp:25.5,humidity:60\r\n`、`V=30.58 I=0.82\r\n`、`temp 25.5 hum 60\r\n` |
 | **ヘッダー行** | 列名定義（初回のみ） | `temp,humidity,pressure\r\n` |
 | **状態値** | 文字列/数値で状態を表現 | `state:RUNNING\r\n` または `motor:1\r\n` |
 
@@ -79,12 +79,19 @@ pub enum ChannelValue {
 
 1. **行区切り:** 改行コードで1データポイントを区切る
 2. **値区切り:** カンマ `,` > タブ `\t` > スペース ` ` の優先順位で検出
-3. **ラベル検出:** コロン `:` でラベルと値を分離
+3. **ラベル検出（2026-11-04 拡張、SYS-F-715）:**
+   - 最初の `=` または `:` でラベルと値を分離する。前後の空白は可（`temp = 25`、`temp: 25`）
+   - ラベルは文字（日本語可）か `_` で始まること。`12:34:56` のような時刻はペアにしない
+   - スペース区切りの行では「単語 数値」もペアにする（`temp 25.5 hum 60`）。ただしヘッダー採用後は使わず、行内の裸の数値がすべて直前に単語を持つときだけ（`RUNNING 25.5 60` は従来どおり列位置）
+   - ペアを含むスペース区切りの行では、ペアにならない単語（`[Mon`、`occurred`）は捨てる。カンマ/タブ区切りでは列位置の状態値として残す
+   - 値が空のペア（`key=`）は捨てる（列位置の状態値にしない）
 4. **型推論:**
-   - 数値としてパース可能 → `ChannelValue::Numeric`
-   - パース不可 → `ChannelValue::State`
+   - 有限の数値 → `ChannelValue::Numeric`
+   - 数値＋短い単位（4 文字以下・数字なし: `11ms`、`3.3V`、`100%`、`2916094]`）→ 単位を除いて `Numeric`
+   - 文字か `_` で始まる値（`RUNNING`、`MODE2`、`NaN`）→ `ChannelValue::State`
+   - それ以外（`0.825/0.797`、`1/1`、`0x1F`、`-inf`、`=` や `:` を含む値）→ 捨てる。状態にすると毎行新しい状態になり State Timeline が埋まるため
 5. **ラベル自動生成:** ラベルがない場合は `ch0`, `ch1`, ... を自動付与
-6. **ヘッダー検出:** 最初の行がすべて非数値の場合、ヘッダーとして解釈
+6. **ヘッダー検出:** 最初の行がすべて非数値で、`:` も `=` も含まない場合、ヘッダーとして解釈
 
 ### エラーハンドリング