diff --git a/goodwe_controller/CHANGELOG.md b/goodwe_controller/CHANGELOG.md
index 6e298b6..f496b85 100644
--- a/goodwe_controller/CHANGELOG.md
+++ b/goodwe_controller/CHANGELOG.md
@@ -1,5 +1,95 @@
 # Changelog
 
+## 0.13.0
+
+**A minor bump: new behaviour, a new add-on page (Home, Settings, Batteries,
+Setup), and six new options.** No option was removed or renamed, and no
+default of an existing option changed (77 options -> 83). The only new
+start-up checks are on the new options, so options that start 0.12.0 also
+start 0.13.0.
+
+New options, and what they do if you leave them alone:
+
+| option | default | left alone |
+|---|---|---|
+| `peak_margin_w` | `50` | the peak guard aims 50 W below your peak limit, or below a higher peak already reached this month; `0` is the old aim ([[SAFETY-79]]) |
+| `battery_modes_enabled` | `false` | no battery modes, control as before ([[OPT-11]]) |
+| `pv_forecast_entity`, `pv_forecast_tomorrow_entity` | empty | no solar forecast is used ([[OPT-11]]) |
+| `solar_trust_pct` | `70` | only used with a solar forecast ([[OPT-11]]) |
+| `pv_invert_entities` | `[]` | PV readings as before ([[TEL-14]]) |
+
+⚠️ **Turn on Watchdog** on the add-on's Info tab. It is off by default. If
+the control loop crashes, the add-on now sets the batteries to 0 W and stops.
+Home Assistant only starts it again when Watchdog is on ([[SAFETY-61]],
+[[DOC-5]]).
+
+⚠️ **The peak guard now starts a little earlier.** It aims 50 W below your
+peak limit, so the batteries give a bit more at peak times. Set
+`peak_margin_w: 0` for the old aim ([[SAFETY-79]]).
+
+Contents of this release, in merge order since 0.12.0 (`a45ed06`):
+
+| | |
+|---|---|
+| `fa3d237` | Docs name the right P1 age entity and a battery list that starts ([[DOC-1]]) |
+| `6e65272` | If the control loop crashes, the batteries go to 0 W and the add-on stops ([[SAFETY-61]]) |
+| `3e38baf` | The check tools refuse a file they cannot read, instead of saying all clear (tools only) ([[SAFETY-60]], [[SAFETY-62]]) |
+| `43b2740` | A missing value in a check is a named failure (tests only) ([[TEST-26]]) |
+| `20260e8` | Docs: turn on Watchdog ([[DOC-5]]) |
+| `16c796f` | New option `pv_invert_entities`: flip the sign of a PV sensor that reads backwards ([[TEL-14]]) |
+| `6a8a5ff` | CI tests against the real inverter simulator (CI only) ([[CI-12]]) |
+| `82f032e` | CI pin checks report failures properly (CI only) ([[TOOL-9]]) |
+| `fe13251` | CI pin update (CI only) |
+| `397dd15` | Alarm notifications that are still active come back after a Home Assistant restart ([[SAFETY-34]]) |
+| `59415ea` | CI pin update (CI only) |
+| `2503de1` | "Battery is not keeping up" is a warning with its own notification, not a "bug" alarm; its figures are correct ([[SAFETY-40]]) |
+| `48ef06a` | Shorter, plainer notifications ([[UX-08]]) |
+| `5c151a3` | CI pin update (CI only) |
+| `d57767f` | Shorter, plainer status rows and banners ([[UX-08]]) |
+| `e1d0970` | Details link works on current Home Assistant; plainer words ([[UX-09]]) |
+| `a02cd4b` | Shorter refusals, errors and option texts ([[UX-08]]) |
+| `32b9e56` | Plainer log lines and docs ([[UX-08]]) |
+| `125b070` | CI pin update (CI only) |
+| `2b14b88` | Last plain-language fixes in logs and the status page ([[UX-10]]) |
+| `c4032eb` | CI pin update (CI only) |
+| `d1f7e33` | Safety log lines: one plain sentence and a code ([[UX-11]]) |
+| `652097a` | A battery that refuses power (e.g. empty) is asked for 0 W, and tried at 200 W for 34 s every 15 min ([[SAFETY-52]]) |
+| `afd6af0` | Groundwork for the new settings pages ([[UX-13]]) |
+| `a36dca6` | New page with a Home screen ([[UX-13]]) |
+| `28a49cc` | With two or more inverters, a battery that refuses power is held on its own; the others take over ([[SAFETY-73]]) |
+| `515c11b` | New Installer settings view ([[UX-13]]) |
+| `4de9675` | New setup wizard for installers ([[UX-13]]) |
+| `8c34647` | A new install with no inverter opens the setup wizard instead of stopping ([[UX-15]]) |
+| `a5dddad` | Dutch text and a time-period editor ([[UX-13]]) |
+| `ed739d4` | Battery modes (off by default): per-battery limits, on/off, solar order ([[OPT-11]]) |
+| `7995e4d` | Simple settings view and a Batteries screen ([[UX-13]]) |
+| `7337b79` | Battery modes in Home Assistant, when modes are on ([[OPT-11]]) |
+| `7a00f12` | New option `peak_margin_w`: the peak guard keeps a margin below the limit ([[SAFETY-79]]) |
+| `5a4cdc2` | Battery modes: charge in cheap hours, hold for expensive hours; selling is off for now ([[OPT-11]]) |
+| `4f25b24` | No false "Load too high" alarms at quarter edges or with a noisy load (10 s hold) ([[SAFETY-81]]) |
+| `35cdffe` | Maintenance drain with two batteries no longer stalls ([[SAFETY-78]]) |
+| `1145a93` | Battery modes: a solar forecast decides how much to buy from the grid ([[OPT-11]]) |
+| `9d5b7d1` | With one battery, the peak guard wins over the maintenance drain ([[SAFETY-83]]) |
+| `4ad8298` | Maintenance charge with two batteries no longer stalls; it gives way to the peak guard ([[SAFETY-84]]) |
+| `b8ddfd7` | The peak guard wins over the maintenance hold; the hold ends on time, with no top-up ([[SAFETY-86]]) |
+| `9358781` | With two or more batteries, the peak guard uses every battery that can still give; peak alarms no longer say control stopped ([[SAFETY-87]]) |
+| `61072ca` | No false "Battery is not keeping up" during maintenance; real shortfalls still warn; the status row counts each episode once ([[SAFETY-85]]) |
+
+### Known issues
+
+- A false "Battery is not keeping up" can still show when the peak guard pauses a maintenance charge ([[SAFETY-92]]).
+- Two inverters: at the end of a maintenance charge one battery can charge from the grid while the house uses a lot. Do not add a second inverter before the next release ([[SAFETY-93]]).
+- A healthy battery that turns from charging to giving can be held at 0 W for up to 15 min ([[SAFETY-94]]).
+- After a gap in the P1 meter, the peak guard is blind for the rest of that quarter hour ([[SAFETY-90]]).
+- Two batteries: one at its peak reserve can be used before a draining battery has used its room ([[SAFETY-91]]).
+
+### If you are crossing from a version older than 0.10.0
+
+`## 0.10.0` below can refuse an old config: `slew_w` above its limit, and the
+withdrawn `price_provider` ids `engie_dynamic`, `totalenergies_dynamic` and
+`eneco_eddy`. Read it before you update. Run `tools/predeploy_check.py` with the
+bare options (`jq '.data.options'`) first.
+
 ## 0.12.0
 
 **A MINOR BUMP FOR ONE NEW OPTION: `pv_entities` ([[TEL-12]]), for sites with
diff --git a/goodwe_controller/config.yaml b/goodwe_controller/config.yaml
index 4fcff8e..973f5a3 100644
--- a/goodwe_controller/config.yaml
+++ b/goodwe_controller/config.yaml
@@ -1,5 +1,5 @@
 name: GoodWe RS485 Controller
-version: "0.12.0"
+version: "0.13.0"
 slug: goodwe_controller
 description: >-
   Drives a GoodWe ES/BP battery inverter over RS485 by emulating its smart