diff --git a/bios/Atari/400-800/.variants/1540OS3.V0 b/bios/Atari/400-800/.variants/1540OS3.V0
new file mode 100644
index 00000000..328b9692
Binary files /dev/null and b/bios/Atari/400-800/.variants/1540OS3.V0 differ
diff --git a/bios/Atari/400-800/ROM_OS_BB01R59A b/bios/Atari/400-800/ROM_OS_BB01R59A
new file mode 100755
index 00000000..e2876e22
Binary files /dev/null and b/bios/Atari/400-800/ROM_OS_BB01R59A differ
diff --git a/bios/Atari/400-800/ROM_OS_BB02R3V4 b/bios/Atari/400-800/ROM_OS_BB02R3V4
new file mode 100644
index 00000000..2ed730fe
Binary files /dev/null and b/bios/Atari/400-800/ROM_OS_BB02R3V4 differ
diff --git a/bios/Atari/400-800/ROM_OS_CC01R4 b/bios/Atari/400-800/ROM_OS_CC01R4
new file mode 100755
index 00000000..cda74518
Binary files /dev/null and b/bios/Atari/400-800/ROM_OS_CC01R4 differ
diff --git a/database.json b/database.json
index 7d3ec1d1..a948e353 100644
--- a/database.json
+++ b/database.json
@@ -1,7 +1,7 @@
 {
-  "generated_at": "2026-03-20T08:29:40Z",
-  "total_files": 6719,
-  "total_size": 5256795390,
+  "generated_at": "2026-03-20T09:03:45Z",
+  "total_files": 6723,
+  "total_size": 5256860926,
   "files": {
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@@ -22044,6 +22044,15 @@
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+    "454fdd9005c43142f827e1e506bf75fda0fe2a65": {
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@@ -22170,6 +22179,33 @@
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+      "name": "ROM_OS_CC01R4",
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+      "sha1": "4e7fdcfaaa84fe3de728f5a74394502fb0f3c6cb",
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@@ -62926,6 +62962,7 @@
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@@ -62940,6 +62977,9 @@
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@@ -74252,6 +74292,9 @@
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       ],
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@@ -74292,6 +74335,15 @@
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       ],
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@@ -90858,6 +90910,7 @@
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@@ -90872,6 +90925,9 @@
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