diff --git a/PLAY_RELEASE_NOTES.md b/PLAY_RELEASE_NOTES.md
index 4329a76..a6e6ddb 100644
--- a/PLAY_RELEASE_NOTES.md
+++ b/PLAY_RELEASE_NOTES.md
@@ -5,7 +5,22 @@ first. Plain text only (the Console renders no markdown), 500 characters max per
 language — each block below is measured and fits. Paragraphs are one line each so a
 copy-paste lands in the Console unwrapped.
 
-Release name field: `1.2.6 (8)`
+Release name field: `1.2.7 (9)`
+
+## 1.2.7 (versionCode 9)
+
+```
+Photos taken in dim light and at high ISO came out much noisier than the preview showed. Every shot was being sharpened in the background by a fixed amount the viewfinder never applied, and it amplified sensor noise about three times over.
+
+That hidden sharpening is gone, so high-ISO shots now come back as clean as the preview promised. The SHARPENING slider still sharpens exactly as before when you move it above 0.
+```
+
+419 characters (1.2.7).
+
+Artifact: `android/app/build/outputs/bundle/liteRelease/app-lite-release.aab`
+(appId `com.locphamtran.recipescamera`, versionCode 9, versionName 1.2.7).
+The pro APK built from the same commit is `app-pro-release.apk`, versionName
+`1.2.7-pro` - it is the paid build handed out directly, not uploaded here.
 
 ## 1.2.6 (versionCode 8)
 
diff --git a/RELEASE_NOTES.md b/RELEASE_NOTES.md
index 9f40969..13b7297 100644
--- a/RELEASE_NOTES.md
+++ b/RELEASE_NOTES.md
@@ -1,5 +1,17 @@
 # Release notes
 
+## 1.2.7 (versionCode 9)
+
+Export
+- Every camera capture came out of the exporter through a full-resolution unsharp mask the viewfinder never showed. App.tsx passed `sharpen: true`, and with the SHARPENING knob at its default 0 both engines read that flag as an *amount* of 0.5 - a value that existed only as the boolean's fallback. The 3x3 kernel `[0,-a,0; -a,1+4a,-a; 0,-a,0]` at a=0.5 has a noise gain of 3.167x at low frequency and 5.0x at Nyquist, so a dim, high-ISO frame was pushed back several times noisier than the preview promised.
+- The knob is now the only source of output sharpening. The boolean is gone from ExportOptions and NativeExportOptions, the 0.5 fallback is gone with it, and screenSharpenImage no longer carries `amount = 0.5` as a default argument - a second door onto the same value. A knob above 0 sharpens exactly as before, the negative knob still means none, and the Kotlin-side `adjust["sharpen"]` amount is untouched.
+- Measured on a Xiaomi thor, 3000x4000 captures in one unchanged scene. At 1x / ISO ~330 the noise sigma drops 4.52 -> 2.35, the dark-quartile sigma 3.21 -> 1.56 and a flat 64px tile 0.599 -> 0.349; at 10x / ISO ~1900 the same three fall 1.22 -> 1.09, 0.75 -> 0.54 and 0.464 -> 0.225. With no edit applied, the JPEGs shrink 26% and 35% - the mask had also been spending a third of every file on amplified noise.
+- Stills now match the preview, which always rendered without the mask.
+
+Notes
+- qualityPrioritization was re-tested as the other suspect and cleared: MAXIMIZE_QUALITY ('quality') moved neither noise figure at either ISO, so the shipped 'balanced' capture mode stays.
+- Zoom to 10x in the same room is the high-ISO bench for this device: AE picks ISO ~1900-2100 there against ~330 at 1x.
+
 ## 1.2.6 (versionCode 8)
 
 Presets
diff --git a/android/app/build.gradle b/android/app/build.gradle
index 42927f8..3b55dc2 100644
--- a/android/app/build.gradle
+++ b/android/app/build.gradle
@@ -92,8 +92,8 @@ android {
         applicationId 'com.locphamtran.recipescamera'
         minSdkVersion rootProject.ext.minSdkVersion
         targetSdkVersion rootProject.ext.targetSdkVersion
-        versionCode 8
-        versionName "1.2.6"
+        versionCode 9
+        versionName "1.2.7"
 
         buildConfigField "String", "REACT_NATIVE_RELEASE_LEVEL", "\"${findProperty('reactNativeReleaseLevel') ?: 'stable'}\""
 
diff --git a/app.json b/app.json
index ab69947..dde3d5f 100644
--- a/app.json
+++ b/app.json
@@ -2,7 +2,7 @@
  "expo": {
   "name": "RecipesCam",
   "slug": "recipescamera",
-  "version": "1.2.6",
+  "version": "1.2.7",
   "orientation": "portrait",
   "icon": "./RecipesCamIcon.png",
   "userInterfaceStyle": "light",