diff --git a/goodwe_controller/CHANGELOG.md b/goodwe_controller/CHANGELOG.md
index 679b372..d9d93c6 100644
--- a/goodwe_controller/CHANGELOG.md
+++ b/goodwe_controller/CHANGELOG.md
@@ -1,5 +1,39 @@
 # Changelog
 
+## 0.15.0
+
+**A minor bump: changed behaviour, and no option changes.** No option was
+added, removed or renamed, and no default changed (83 options). Options that
+start 0.14.0 also start 0.15.0. The changes below apply with one inverter and
+with two.
+
+The add-on now learns and saves, per battery, what its power reading shows
+at rest (`unit/<name>/idle_w`). There is nothing to set.
+
+Contents of this release, in merge order since 0.14.0 (`02ed120`):
+
+| | |
+|---|---|
+| `cf705a9` | No more false "battery power reading stopped changing" stops at a new command after a rest, or at a change of phase. Each one held a battery at 0 W for about 17 s (about 4 a day on a live site). A healthy battery that lags or turns around is no longer held as refusing for up to 15 min. Each battery learns its own reading at rest (some show about −100 W), so a battery that refuses is still caught, now also with two inverters. The rest value used is limited to ±75 W ([[SAFETY-94]], [[SAFETY-97]], also fixes [[SAFETY-58]]) |
+| `3129dae` | CI tests against a newer `admin/goodwe` (CI only) ([[CI-14]]) |
+
+### Known issues
+
+- A false "Battery is not keeping up" can still show when the peak guard pauses a maintenance charge ([[SAFETY-92]]).
+- After a gap in the P1 meter, the peak guard is blind for the rest of that quarter hour ([[SAFETY-90]]).
+- A battery capped at a low limit with a perfectly flat reading can still trip the stale check ([[SAFETY-74]]).
+- Two inverters: if one battery's drain stops early (e.g. switched Off), the other battery can jump to about 1.6 kW at once, and the surplus goes to the grid ([[SAFETY-95]]).
+- Two inverters: after one battery's link drops, control can stall until a safety stop ([[SAFETY-96]]).
+- Two inverters: the maintenance charge can switch on and off while the house is above the peak aim ([[SAFETY-88]]).
+- Two inverters: the "circulating" figure counts a battery's reading at rest ([[SAFETY-98]]).
+
+### 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+withdrawn `price_provider` ids `engie_dynamic`, `totalenergies_dynamic` and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.
+
 ## 0.14.0
 
 **A minor bump: new behaviour with two inverters, and no option changes.**
diff --git a/goodwe_controller/config.yaml b/goodwe_controller/config.yaml
index 3c3104f..3faf4dc 100644
--- a/goodwe_controller/config.yaml
+++ b/goodwe_controller/config.yaml
@@ -1,5 +1,5 @@
 name: GoodWe RS485 Controller
-version: "0.14.0"
+version: "0.15.0"
 slug: goodwe_controller
 description: >-
   Drives a GoodWe ES/BP battery inverter over RS485 by emulating its smart