diff --git a/.claude-plugin/marketplace.json b/.claude-plugin/marketplace.json
index a53de06..22cf07f 100644
--- a/.claude-plugin/marketplace.json
+++ b/.claude-plugin/marketplace.json
@@ -9,7 +9,7 @@
       "name": "mpftp",
       "source": "./integrations/claude-code-plugin",
       "description": "Typed device, filesystem, REPL, firmware, and probe tools for MicroPython/CircuitPython boards, backed by mpftp.",
-      "version": "0.0.11"
+      "version": "0.0.12"
     }
   ]
 }
diff --git a/CHANGELOG.md b/CHANGELOG.md
index a64b903..6d23c35 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -1,3 +1,11 @@
+## v0.0.12 (2026-10-06)
+
+- `mpftp firmware flash --artifact` with no `--board` or `--family` reads the
+  chip from the image's own header, so the bootloader lands at that chip's
+  offset. A P4 `firmware.bin` used to go to 0x0 instead of 0x2000 and
+  boot-loop the board. `--offset`, `--family` and `--board` still win
+  (mpftp#74).
+
 ## v0.0.11 (2026-09-26)
 
 - `mpftp firmware flash --artifact` refuses an ESP-IDF app image
diff --git a/VERSION b/VERSION
index 2cfabea..8cbf02c 100644
--- a/VERSION
+++ b/VERSION
@@ -1 +1 @@
-0.0.11
+0.0.12
diff --git a/extension/package-lock.json b/extension/package-lock.json
index 0ca24fb..9a7e687 100644
--- a/extension/package-lock.json
+++ b/extension/package-lock.json
@@ -1,12 +1,12 @@
 {
   "name": "mpftp",
-  "version": "0.0.11",
+  "version": "0.0.12",
   "lockfileVersion": 3,
   "requires": true,
   "packages": {
     "": {
       "name": "mpftp",
-      "version": "0.0.11",
+      "version": "0.0.12",
       "license": "MIT",
       "dependencies": {
         "@vscode/codicons": "^0.0.45"
diff --git a/extension/package.json b/extension/package.json
index d8edc86..14b9fd5 100644
--- a/extension/package.json
+++ b/extension/package.json
@@ -2,7 +2,7 @@
   "name": "mpftp",
   "displayName": "mpftp — MicroPython / CircuitPython Board Tools",
   "description": "Connect to MicroPython and CircuitPython boards over USB serial or Wi-Fi (WebREPL): dual-pane file transfer, ANSI REPL, mip/circup packages, and guided MicroPython firmware download/build/flash. Works on Linux, Windows, and WSL (COM ports via Windows Python).",
-  "version": "0.0.11",
+  "version": "0.0.12",
   "publisher": "pydevices",
   "license": "MIT",
   "engines": {
diff --git a/integrations/claude-code-plugin/.claude-plugin/plugin.json b/integrations/claude-code-plugin/.claude-plugin/plugin.json
index 3bb9123..238f454 100644
--- a/integrations/claude-code-plugin/.claude-plugin/plugin.json
+++ b/integrations/claude-code-plugin/.claude-plugin/plugin.json
@@ -1,7 +1,7 @@
 {
   "name": "mpftp",
   "description": "Typed device, filesystem, REPL, firmware, and probe tools for MicroPython/CircuitPython boards, backed by mpftp.",
-  "version": "0.0.11",
+  "version": "0.0.12",
   "author": {
     "name": "Brad Barnett"
   },
diff --git a/integrations/claude-desktop-extension/manifest.json b/integrations/claude-desktop-extension/manifest.json
index 33f80d8..400d6ee 100644
--- a/integrations/claude-desktop-extension/manifest.json
+++ b/integrations/claude-desktop-extension/manifest.json
@@ -1,7 +1,7 @@
 {
   "manifest_version": "0.3",
   "name": "mpftp",
-  "version": "0.0.11",
+  "version": "0.0.12",
   "description": "Typed device, filesystem, REPL, firmware, and probe tools for MicroPython/CircuitPython boards, backed by mpftp.",
   "author": {
     "name": "Brad Barnett"
diff --git a/ui/package-lock.json b/ui/package-lock.json
index 002611b..540fe9f 100644
--- a/ui/package-lock.json
+++ b/ui/package-lock.json
@@ -1,12 +1,12 @@
 {
   "name": "mpftp-ui",
-  "version": "0.0.11",
+  "version": "0.0.12",
   "lockfileVersion": 3,
   "requires": true,
   "packages": {
     "": {
       "name": "mpftp-ui",
-      "version": "0.0.11",
+      "version": "0.0.12",
       "dependencies": {
         "@codemirror/lang-python": "^6.2.1",
         "@xterm/xterm": "^6.0.0",
diff --git a/ui/package.json b/ui/package.json
index 8e02623..d4f84cd 100644
--- a/ui/package.json
+++ b/ui/package.json
@@ -1,6 +1,6 @@
 {
   "name": "mpftp-ui",
-  "version": "0.0.11",
+  "version": "0.0.12",
   "private": true,
   "description": "mpftp local PWA: file transfer + REPL for a MicroPython/CircuitPython board.",
   "scripts": {