diff --git a/CHANGELOG.md b/CHANGELOG.md
new file mode 100644
index 0000000..a195f51
--- /dev/null
+++ b/CHANGELOG.md
@@ -0,0 +1,28 @@
+# Changelog
+
+## 1.0.0 — 2026-04-22
+
+Initial public release. Orac is a MeshCore chatbot that uses the
+`donglora` client to bridge a LoRa dongle to an Anthropic model.
+
+### Added
+
+- `BotRuntime` orchestrating IO, worker, and log threads against a
+  `donglora.Dongle` instance.
+- ADVERT scheduler with IQR-trimmed mean position derived from heard
+  repeater adverts.
+- Typed `TxQueue` with retry / ack tracking against MeshCore message
+  IDs.
+- DM reply pipeline that calls Claude off the IO loop and enqueues
+  reply packets at the right priority.
+- Structured JSONL event log at `~/.donglora/orac-events.jsonl`.
+- `just run` / `just check` / `just events` developer ergonomics.
+- `donglora>=1.0.0,<2.0.0` declared as the registry dep; local dev
+  uses the `[tool.uv.sources]` editable-path override.
+
+### Notes
+
+- Not published to PyPI. Installed from a local checkout only; this
+  1.0.0 tag captures the point at which the bot runs against the
+  Protocol v2 stack (`donglora` 1.0 / `donglora-mux` 1.0 /
+  `donglora-protocol` 1.0).
diff --git a/orac/crypto.py b/orac/crypto.py
index 2885a70..021c5a7 100644
--- a/orac/crypto.py
+++ b/orac/crypto.py
@@ -310,8 +310,8 @@ def build_advert_payload() -> bytes:
     timestamp = struct.pack("<I", int(time.time()))
     name_bytes = BOT_NAME.encode("utf-8")
     if heard_position_count() >= 5 and (avg := average_heard_position()) is not None:
-        lat_i = int(round(avg[0] * 1_000_000))
-        lon_i = int(round(avg[1] * 1_000_000))
+        lat_i = round(avg[0] * 1_000_000)
+        lon_i = round(avg[1] * 1_000_000)
         # flags: has_name (0x80) | has_location (0x10) | chat node (0x01)
         app_data = bytes([0x91]) + struct.pack("<ii", lat_i, lon_i) + name_bytes
     else:
diff --git a/orac/state.py b/orac/state.py
index b3ce7a3..b635942 100644
--- a/orac/state.py
+++ b/orac/state.py
@@ -17,7 +17,7 @@ log = logging.getLogger("orac")
 
 # ── Persistent state ─────────────────────────────────────────────
 
-_state: dict[str, dict[str, object]] = {
+_state: dict[str, dict[str, object] | list[list[float]]] = {
     "channel_history": {},  # channel_name -> list of messages
     "dm_history": {},  # peer_pubkey_hex -> list of messages
     "known_nodes": {},  # pubkey_hex -> {"name": str, "seen": float}
diff --git a/pyproject.toml b/pyproject.toml
index 72be85b..aa9df98 100644
--- a/pyproject.toml
+++ b/pyproject.toml
@@ -1,12 +1,12 @@
 [project]
 name = "donglora-ai-bot"
-version = "0.1.0"
+version = "1.0.0"
 description = "MeshCore AI chatbot — default mesh name 'Orac'"
 license = "MIT"
 requires-python = ">=3.10"
 authors = [{ name = "Stephen Waits" }]
 dependencies = [
-    "donglora",
+    "donglora>=1.0.0,<2.0.0",
     "anthropic",
     "cobs",
     "pyserial",
diff --git a/uv.lock b/uv.lock
index 95f0c78..9a031c3 100644
--- a/uv.lock
+++ b/uv.lock
@@ -178,7 +178,7 @@ wheels = [
 
 [[package]]
 name = "donglora"
-version = "0.2.0"
+version = "1.0.0"
 source = { editable = "../client-py" }
 dependencies = [
     { name = "cobs" },
@@ -206,7 +206,7 @@ dev = [
 
 [[package]]
 name = "donglora-ai-bot"
-version = "0.1.0"
+version = "1.0.0"
 source = { virtual = "." }
 dependencies = [
     { name = "anthropic" },