Add CHANGELOG for v0.0.1 and v0.0.2

The guard in the b2.py patch block skipped setting get_restic_config when
something caused B2RcloneRemote.__dict__ to already contain it at import
time (e.g. a TrueNAS version that adds a NotImplementedError stub). Remove
the guard and always assign, which is safe: the native-support kill switch
already prevents patching when TrueNAS ships a real implementation.

Also update the native-support check to distinguish a stub (source contains
NotImplementedError) from a working implementation, so a stub does not
trigger the kill switch and block all future patching.

CHANGELOG.md

@@ -0,0 +1,42 @@
+# Changelog
+
+## v0.0.2 — 2026-06-19
+
+### Fixed
+
+- **B2 backup failing with `NotImplementedError` after a TrueNAS update.**
+  The patch block's guard (`if "get_restic_config" not in B2RcloneRemote.__dict__`)
+  could misfire and silently skip injecting the method — most likely when a
+  TrueNAS version adds a stub that raises `NotImplementedError`, causing the dict
+  check to return `False`. The guard is removed; the assignment is now
+  unconditional. This is safe because the native-support kill switch already
+  prevents patching when TrueNAS ships a real, working implementation.
+
+- **Native-support check falsely triggering kill switch on stubs.**
+  The check now inspects the source of any pre-existing `get_restic_config`
+  before concluding that TrueNAS has shipped native B2 support. If the method
+  body contains `NotImplementedError` it is treated as a stub and patching
+  continues; only a method that does not raise `NotImplementedError` triggers
+  the kill switch and auto-disable.
+
+---
+
+## v0.0.1 — 2026-06-16
+
+Initial public release. Extends TrueNAS SCALE's TrueCloud Backup feature to
+work with S3-compatible providers and native Backblaze B2 in addition to Storj,
+using volatile overlayfs patching of the TrueNAS middleware that persists across
+system updates via a PREINIT initshutdownscript.
+
+### Included
+
+- `install.sh` — registers the PREINIT boot hook and applies patches immediately
+- `patch/apply.sh` — PREINIT script; mounts writable overlays, patches `b2.py`
+  and `restic.py`, patches the Angular UI bundle to widen the credential dropdown
+- `patch/create_task.py` — CLI to create TrueCloud Backup tasks with S3 or B2
+  credentials, bypassing the Storj-only restriction in the UI
+- `recover.sh` — emergency recovery; sets the kill switch and restarts middlewared
+- `uninstall.sh` — full removal of the patch and PREINIT hook
+- Kill switch support (`disabled` file) for safe degradation
+- Auto-disable when TrueNAS ships native B2 restic support
+- `hook_status.json` written on each boot for `create_task.py verify`

patch/apply.sh

@@ -111,7 +111,15 @@ try:
         print('no')
     else:
         src = open(inspect.getfile(_b2_mod), encoding='utf-8', errors='replace').read()
-        print('no' if 'TRUECLOUD_PATCH' in src else 'yes')
+        if 'TRUECLOUD_PATCH' in src:
+            print('no')
+        else:
+            # Distinguish a real implementation from a stub that raises NotImplementedError.
+            try:
+                method_src = inspect.getsource(B2RcloneRemote.get_restic_config)
+            except (OSError, TypeError):
+                method_src = ''
+            print('no' if 'NotImplementedError' in method_src else 'yes')
 except Exception:
     print('no')
 " 2>/dev/null || echo "no")
@@ -184,9 +192,8 @@ def _tc_get_restic_config(task):
     p = task["credentials"]["provider"]
     return "", {"B2_ACCOUNT_ID": p["account"], "B2_ACCOUNT_KEY": p["key"]}
 
-if "get_restic_config" not in B2RcloneRemote.__dict__:
+B2RcloneRemote.get_restic_config = staticmethod(_tc_get_restic_config)
-    B2RcloneRemote.get_restic_config = staticmethod(_tc_get_restic_config)
+B2RcloneRemote.restic = True
-    B2RcloneRemote.restic = True
 """
 
 path = sys.argv[1]