diff --git a/.github/workflows/tests.yml b/.github/workflows/tests.yml
index 08ae8a7..ba74cf0 100644
--- a/.github/workflows/tests.yml
+++ b/.github/workflows/tests.yml
@@ -20,7 +20,7 @@ jobs:
     strategy:
       fail-fast: false
       matrix:
-        python-version: ["3.10", "3.12"]
+        python-version: ["3.11", "3.12"]
 
     steps:
       - uses: actions/checkout@v7
@@ -51,12 +51,19 @@ jobs:
         with:
           python-version: "3.12"
 
+      - uses: astral-sh/setup-uv@v8.1.0
+        with:
+          version: "latest"
+
       - uses: actions/setup-node@v7
         with:
           node-version: "22"
 
       - name: Install bridge + test deps
-        run: pip install -e . pytest
+        run: |
+          uv pip install --system \
+            "inkbox @ git+https://github.com/inkbox-ai/inkbox.git@8f4b37c56cd153a2acc6cfabe27dbbeb43510f00#subdirectory=sdk/python" \
+            -e . pytest
 
       # @alpha is the prerelease channel cut from codex main near-daily — the
       # freshest main build available without compiling the host from source.
diff --git a/README.md b/README.md
index ef39cbb..e47b14c 100644
--- a/README.md
+++ b/README.md
@@ -20,13 +20,13 @@
 ## Prerequisites
 
 - **Codex installed and logged in.** The bridge drives a real Codex session, so the `codex` CLI has to be on the machine and authenticated — install it ([developers.openai.com/codex](https://developers.openai.com/codex)), then either sign in with a ChatGPT/Codex login or set `OPENAI_API_KEY`. `inkbox-codex doctor` checks for it.
-- **Python 3.10+.** The installer finds one and builds the bridge its own venv.
+- **Python 3.11+.** The installer finds one and builds the bridge its own venv.
 - **macOS or Linux.** Boot persistence uses a systemd user unit on Linux and a launchd agent on macOS.
 - **An Inkbox agent** — nothing to set up in advance; the setup wizard self-signs up for you (or takes an existing API key).
 
 ## Get started — one command
 
-This finds a Python 3.10+, installs the bridge in its own venv, puts `inkbox-codex` on your PATH, and runs the setup wizard:
+This finds a Python 3.11+, installs the bridge in its own venv, puts `inkbox-codex` on your PATH, and runs the setup wizard:
 
 ```bash
 curl -fsSL https://raw.githubusercontent.com/inkbox-ai/codex-plugin/main/install.sh | bash
@@ -70,7 +70,7 @@ you (phone)  ── SMS / iMessage / email / call ──▶  Inkbox  ──▶
 
 ## Manual install
 
-If you'd rather not run the installer (any Python 3.10+ environment):
+If you'd rather not run the installer (any Python 3.11+ environment):
 
 ```bash
 pip install -e .
diff --git a/inkbox_codex/doctor.py b/inkbox_codex/doctor.py
index aabe80a..df3f45e 100644
--- a/inkbox_codex/doctor.py
+++ b/inkbox_codex/doctor.py
@@ -33,7 +33,7 @@ def run_doctor() -> List[Tuple[str, bool, str]]:
         import inkbox  # noqa: F401
         checks.append(("inkbox SDK", True, "installed"))
     except ImportError:
-        checks.append(("inkbox SDK", False, "pip install 'inkbox>=0.4.15,<1.0.0'"))
+        checks.append(("inkbox SDK", False, "pip install 'inkbox>=0.5.0,<1.0.0'"))
 
     try:
         import aiohttp  # noqa: F401
diff --git a/inkbox_codex/gateway.py b/inkbox_codex/gateway.py
index faa8119..5615932 100644
--- a/inkbox_codex/gateway.py
+++ b/inkbox_codex/gateway.py
@@ -509,7 +509,7 @@ async def run(self) -> None:
         if not AIOHTTP_AVAILABLE:
             raise RuntimeError("aiohttp is not installed; run: pip install aiohttp")
         if not INKBOX_AVAILABLE:
-            raise RuntimeError("inkbox SDK is not installed; run: pip install 'inkbox>=0.4.15,<1.0.0'")
+            raise RuntimeError("inkbox SDK is not installed; run: pip install 'inkbox>=0.5.0,<1.0.0'")
         if not self.cfg.api_key or not self.cfg.identity:
             raise RuntimeError("INKBOX_API_KEY and INKBOX_IDENTITY must be set (see README)")
 
diff --git a/inkbox_codex/setup_wizard.py b/inkbox_codex/setup_wizard.py
index 10f1587..6a98784 100644
--- a/inkbox_codex/setup_wizard.py
+++ b/inkbox_codex/setup_wizard.py
@@ -35,8 +35,8 @@
 
 # Packages the wizard itself needs to talk to Inkbox during setup. The
 # gateway's Codex CLI dependency is checked by doctor.
-INKBOX_REQUIREMENTS = ("inkbox>=0.4.20,<1.0.0", "aiohttp>=3.9")
-MIN_INKBOX_VERSION = (0, 4, 20)
+INKBOX_REQUIREMENTS = ("inkbox>=0.5.0,<1.0.0", "aiohttp>=3.9")
+MIN_INKBOX_VERSION = (0, 5, 0)
 _BRACKETED_PASTE_PATTERN = re.compile(r"\x1b\[\s*200~|\x1b\[\s*201~")
 
 # Bundled avatar attached to the agent's Inkbox contact card during setup.
diff --git a/install.sh b/install.sh
index 142c4f6..facc29d 100755
--- a/install.sh
+++ b/install.sh
@@ -8,7 +8,7 @@
 #
 #   ./install.sh
 #
-# Finds a Python 3.10+, sets up an isolated venv, installs the bridge, puts
+# Finds a Python 3.11+, sets up an isolated venv, installs the bridge, puts
 # `inkbox-codex` on your PATH, then runs the setup wizard. Re-runnable.
 #
 # Flags:
@@ -54,22 +54,22 @@ ok()   { echo "  ${GREEN}✓${RESET} $*"; }
 warn() { echo "  ${YELLOW}!${RESET} $*"; }
 die()  { echo "${RED}✗ $*${RESET}" >&2; exit 1; }
 
-# --- 1. find Python 3.10+ --------------------------------------------------
+# --- 1. find Python 3.11+ --------------------------------------------------
 find_python() {
   local c v maj min
-  for c in python3.13 python3.12 python3.11 python3.10 python3 python; do
+  for c in python3.13 python3.12 python3.11 python3 python; do
     command -v "$c" >/dev/null 2>&1 || continue
     v="$("$c" -c 'import sys;print("%d.%d"%sys.version_info[:2])' 2>/dev/null || echo 0.0)"
     maj="${v%.*}"; min="${v#*.}"
-    if [ "$maj" = "3" ] && [ "$min" -ge 10 ] 2>/dev/null; then
+    if [ "$maj" = "3" ] && [ "$min" -ge 11 ] 2>/dev/null; then
       echo "$c"; return 0
     fi
   done
   return 1
 }
 
-step "Looking for Python 3.10+"
-PY="$(find_python)" || die "No Python 3.10+ found. Install python3.11+ and re-run."
+step "Looking for Python 3.11+"
+PY="$(find_python)" || die "No Python 3.11+ found. Install Python 3.11 or newer and re-run."
 ok "using $($PY --version 2>&1) at $(command -v "$PY")"
 
 # --- 2. get the source -----------------------------------------------------
diff --git a/pyproject.toml b/pyproject.toml
index 41afc18..853e7c0 100644
--- a/pyproject.toml
+++ b/pyproject.toml
@@ -2,10 +2,10 @@
 name = "codex-plugin"
 version = "0.1.4"
 description = "Inkbox bridge for Codex — talk to your coding agent over email, SMS, iMessage, and voice"
-requires-python = ">=3.10"
+requires-python = ">=3.11"
 dependencies = [
   "aiohttp>=3.9",
-  "inkbox>=0.4.24,<1.0.0",
+  "inkbox>=0.5.0,<1.0.0",
   "segno>=1.5",  # terminal QR codes for the iMessage connect step
 ]
 
diff --git a/tests/live/test_sms.py b/tests/live/test_sms.py
index fdf6edb..e5476f9 100644
--- a/tests/live/test_sms.py
+++ b/tests/live/test_sms.py
@@ -124,10 +124,10 @@ def _settle_inbound(sms) -> set:
 
 
 def _wait_new_inbound(sms, before: set, timeout_s: float, context: str) -> str:
-    """Poll for the first inbound not in ``before``; return its body lowercased."""
+    """Poll for the earliest inbound not in ``before``; return its body lowercased."""
     deadline = time.monotonic() + timeout_s
     while time.monotonic() < deadline:
-        for m in _inbound_from_aut(sms):
+        for m in reversed(_inbound_from_aut(sms)):
             if m.id not in before:
                 body = getattr(m, "text", "") or ""
                 bad = [x for x in ERROR_MARKERS if x in body.lower()]
diff --git a/tests/test_setup_wizard.py b/tests/test_setup_wizard.py
index ec4a104..3bd2386 100644
--- a/tests/test_setup_wizard.py
+++ b/tests/test_setup_wizard.py
@@ -88,7 +88,7 @@ def test_install_command_prefers_uv_when_available(monkeypatch):
         "install",
         "--python",
         "/tmp/venv/bin/python",
-        "inkbox>=0.4.20,<1.0.0",
+        "inkbox>=0.5.0,<1.0.0",
         "aiohttp>=3.9",
     ]]
 
@@ -98,10 +98,10 @@ def test_install_command_falls_back_to_pip_and_ensurepip(monkeypatch):
     monkeypatch.setattr(setup_wizard.shutil, "which", lambda _name: None)
 
     assert setup_wizard._install_commands() == [
-        [["/tmp/venv/bin/python", "-m", "pip", "install", "inkbox>=0.4.20,<1.0.0", "aiohttp>=3.9"]],
+        [["/tmp/venv/bin/python", "-m", "pip", "install", "inkbox>=0.5.0,<1.0.0", "aiohttp>=3.9"]],
         [
             ["/tmp/venv/bin/python", "-m", "ensurepip", "--upgrade"],
-            ["/tmp/venv/bin/python", "-m", "pip", "install", "inkbox>=0.4.20,<1.0.0", "aiohttp>=3.9"],
+            ["/tmp/venv/bin/python", "-m", "pip", "install", "inkbox>=0.5.0,<1.0.0", "aiohttp>=3.9"],
         ],
     ]
 
@@ -120,7 +120,7 @@ def fail_import():
     out = capsys.readouterr().out
     assert "/tmp/venv/bin/python" in out
     assert "uv pip install --python" in out
-    assert "inkbox>=0.4.20,<1.0.0" in out
+    assert "inkbox>=0.5.0,<1.0.0" in out
 
 
 # ----------------------------------------------------------------------