diff --git a/osxphotos/_constants.py b/osxphotos/_constants.py
index 13bfafa34..0ac54b54f 100644
--- a/osxphotos/_constants.py
+++ b/osxphotos/_constants.py
@@ -53,7 +53,8 @@
 _PHOTOS_7_MODEL_VERSION = [15000, 15999]  # Dev preview: 15134, 12.1: 15331
 _PHOTOS_8_MODEL_VERSION = [16000, 16999]  # Ventura dev preview: 16119
 _PHOTOS_9_MODEL_VERSION = [17000, 17999]  # Sonoma dev preview: 17120
-_PHOTOS_10_MODEL_VERSION = [18000, 18999]  # Sequoia dev preview: 18164
+_PHOTOS_10B1_MODEL_VERSION = [18000, 18164]  # Sequoia dev preview 1: 18164
+_PHOTOS_10_MODEL_VERSION = [18165, 18999]
 
 # the preview versions of 12.0.0 had a difference schema for syndication info so need to check model version before processing
 _PHOTOS_SYNDICATION_MODEL_VERSION = 15323  # 12.0.1
@@ -143,7 +144,7 @@
         "MASTER_FINGERPRINT": "ZADDITIONALASSETATTRIBUTES.ZMASTERFINGERPRINT",
         "HAS_ADJUSTMENTS": "ZASSET.ZHASADJUSTMENTS",
     },
-    10: {
+    9.9: {
         "ASSET": "ZASSET",
         "KEYWORD_JOIN": "Z_1KEYWORDS.Z_48KEYWORDS",
         "ALBUM_JOIN": "Z_31ASSETS.Z_3ASSETS",
@@ -159,6 +160,22 @@
         "MASTER_FINGERPRINT": "ZADDITIONALASSETATTRIBUTES.ZORIGINALSTABLEHASH",
         "HAS_ADJUSTMENTS": "ZASSET.ZADJUSTMENTSSTATE",
     },
+    10: {
+        "ASSET": "ZASSET",
+        "KEYWORD_JOIN": "Z_1KEYWORDS.Z_48KEYWORDS",
+        "ALBUM_JOIN": "Z_30ASSETS.Z_3ASSETS",
+        "ALBUM_SORT_ORDER": "Z_30ASSETS.Z_FOK_3ASSETS",
+        "IMPORT_FOK": "null",
+        "DEPTH_STATE": "ZASSET.ZDEPTHTYPE",
+        "UTI_ORIGINAL": "ZINTERNALRESOURCE.ZCOMPACTUTI",
+        "ASSET_ALBUM_JOIN": "Z_30ASSETS.Z_30ALBUMS",
+        "ASSET_ALBUM_TABLE": "Z_30ASSETS",
+        "HDR_TYPE": "ZHDRTYPE",
+        "DETECTED_FACE_PERSON_FK": "ZDETECTEDFACE.ZPERSONFORFACE",
+        "DETECTED_FACE_ASSET_FK": "ZDETECTEDFACE.ZASSETFORFACE",
+        "MASTER_FINGERPRINT": "ZADDITIONALASSETATTRIBUTES.ZORIGINALSTABLEHASH",
+        "HAS_ADJUSTMENTS": "ZASSET.ZADJUSTMENTSSTATE",
+    },
 }
 
 # Which version operating systems have been tested
@@ -205,6 +222,7 @@
     ("14", "2"),
     ("14", "3"),
     ("14", "4"),
+    ("14", "5"),
 ]
 
 # Photos 5 has persons who are empty string if unidentified face
diff --git a/osxphotos/photosdb/photosdb_utils.py b/osxphotos/photosdb/photosdb_utils.py
index 1c49e6eeb..05b8f6c66 100644
--- a/osxphotos/photosdb/photosdb_utils.py
+++ b/osxphotos/photosdb/photosdb_utils.py
@@ -18,6 +18,7 @@
     _PHOTOS_8_MODEL_VERSION,
     _PHOTOS_9_MODEL_VERSION,
     _PHOTOS_10_MODEL_VERSION,
+    _PHOTOS_10B1_MODEL_VERSION,
     _TESTED_DB_VERSIONS,
 )
 from ..sqlite_utils import sqlite_open_ro
@@ -136,6 +137,8 @@ def get_photos_version_from_model(db_file: str) -> int:
         return 8
     if _PHOTOS_9_MODEL_VERSION[0] <= model_ver <= _PHOTOS_9_MODEL_VERSION[1]:
         return 9
+    if _PHOTOS_10B1_MODEL_VERSION[0] <= model_ver <= _PHOTOS_10B1_MODEL_VERSION[1]:
+        return 9.9
     if _PHOTOS_10_MODEL_VERSION[0] <= model_ver <= _PHOTOS_10_MODEL_VERSION[1]:
         return 10
     logger.warning(
diff --git a/tests/test_sequoia_15_0_0_preview.py b/tests/test_sequoia_15_0_0_preview.py
index fbcbce860..9e3f527bf 100644
--- a/tests/test_sequoia_15_0_0_preview.py
+++ b/tests/test_sequoia_15_0_0_preview.py
@@ -348,7 +348,7 @@ def test_db_version(photosdb):
 
 
 def test_photos_version(photosdb):
-    assert photosdb.photos_version == 10
+    assert photosdb.photos_version == 9.9 # dev preview 1 isn't version 10 yet
 
 
 def test_persons(photosdb):