diff --git a/firmware/t3b1/bitcoinonly/t3b1-2.12.3-bitcoinonly.json b/firmware/t3b1/bitcoinonly/t3b1-2.12.3-bitcoinonly.json
new file mode 100644
index 0000000..383f72e
--- /dev/null
+++ b/firmware/t3b1/bitcoinonly/t3b1-2.12.3-bitcoinonly.json
@@ -0,0 +1,18 @@
+{
+  "required": false,
+  "version": [2, 12, 3],
+  "min_bootloader_version": [2, 1, 7],
+  "min_firmware_version": [2, 8, 3],
+  "bootloader_version": [2, 1, 16],
+  "firmware_revision": "0d3dee246dadb2ee6ee449272f4936a4ff6bbdff",
+  "url": "firmware/t3b1/trezor-t3b1-2.12.3-bitcoinonly.bin",
+  "fingerprint": "8e09312e582b6599361cb4ec2808b31e52ed52b0d042ff0503e719508c4937d3",
+  "changelog": "* Fixed a crash during PIN verification when upgrading from firmware versions older than 2.9.0.",
+  "translations": {
+    "cs-CZ": "firmware/translations/t3b1/translation-T3B1-cs-CZ-2.12.3.bin",
+    "de-DE": "firmware/translations/t3b1/translation-T3B1-de-DE-2.12.3.bin",
+    "es-ES": "firmware/translations/t3b1/translation-T3B1-es-ES-2.12.3.bin",
+    "fr-FR": "firmware/translations/t3b1/translation-T3B1-fr-FR-2.12.3.bin",
+    "pt-BR": "firmware/translations/t3b1/translation-T3B1-pt-BR-2.12.3.bin"
+  }
+}
diff --git a/firmware/t3b1/releases.json b/firmware/t3b1/releases.json
index b059e47..f0d4d3c 100644
--- a/firmware/t3b1/releases.json
+++ b/firmware/t3b1/releases.json
@@ -1,4 +1,19 @@
 [
+  {
+    "required": false,
+    "version": [2, 12, 3],
+    "min_bootloader_version": [2, 1, 7],
+    "min_firmware_version": [2, 8, 3],
+    "bootloader_version": [2, 1, 16],
+    "firmware_revision": "0d3dee246dadb2ee6ee449272f4936a4ff6bbdff",
+    "translations": ["cs-CZ", "de-DE", "es-ES", "fr-FR", "pt-BR"],
+    "url": "data/firmware/t3b1/trezor-t3b1-2.12.3.bin",
+    "fingerprint": "cd0ba92ec7a692c92e7fd14afa4b2ea0bd574d5bf05427cb799d0596f660a3f0",
+    "changelog": "* Fixed a crash during PIN verification when upgrading from firmware versions older than 2.9.0.",
+    "url_bitcoinonly": "data/firmware/t3b1/trezor-t3b1-2.12.3-bitcoinonly.bin",
+    "fingerprint_bitcoinonly": "8e09312e582b6599361cb4ec2808b31e52ed52b0d042ff0503e719508c4937d3",
+    "changelog_bitcoinonly": "* Fixed a crash during PIN verification when upgrading from firmware versions older than 2.9.0."
+  },
   {
     "required": false,
     "version": [2, 12, 2],
diff --git a/firmware/t3b1/trezor-t3b1-2.12.3-bitcoinonly.bin b/firmware/t3b1/trezor-t3b1-2.12.3-bitcoinonly.bin
new file mode 100644
index 0000000..56060a3
--- /dev/null
+++ b/firmware/t3b1/trezor-t3b1-2.12.3-bitcoinonly.bin
@@ -0,0 +1,3 @@
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+size 1017344
diff --git a/firmware/t3b1/trezor-t3b1-2.12.3.bin b/firmware/t3b1/trezor-t3b1-2.12.3.bin
new file mode 100644
index 0000000..5bc7766
--- /dev/null
+++ b/firmware/t3b1/trezor-t3b1-2.12.3.bin
@@ -0,0 +1,3 @@
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diff --git a/firmware/t3b1/universal/t3b1-2.12.3-universal.json b/firmware/t3b1/universal/t3b1-2.12.3-universal.json
new file mode 100644
index 0000000..0a038ec
--- /dev/null
+++ b/firmware/t3b1/universal/t3b1-2.12.3-universal.json
@@ -0,0 +1,18 @@
+{
+  "required": false,
+  "version": [2, 12, 3],
+  "min_bootloader_version": [2, 1, 7],
+  "min_firmware_version": [2, 8, 3],
+  "bootloader_version": [2, 1, 16],
+  "firmware_revision": "0d3dee246dadb2ee6ee449272f4936a4ff6bbdff",
+  "url": "firmware/t3b1/trezor-t3b1-2.12.3.bin",
+  "fingerprint": "cd0ba92ec7a692c92e7fd14afa4b2ea0bd574d5bf05427cb799d0596f660a3f0",
+  "changelog": "* Fixed a crash during PIN verification when upgrading from firmware versions older than 2.9.0.",
+  "translations": {
+    "cs-CZ": "firmware/translations/t3b1/translation-T3B1-cs-CZ-2.12.3.bin",
+    "de-DE": "firmware/translations/t3b1/translation-T3B1-de-DE-2.12.3.bin",
+    "es-ES": "firmware/translations/t3b1/translation-T3B1-es-ES-2.12.3.bin",
+    "fr-FR": "firmware/translations/t3b1/translation-T3B1-fr-FR-2.12.3.bin",
+    "pt-BR": "firmware/translations/t3b1/translation-T3B1-pt-BR-2.12.3.bin"
+  }
+}
diff --git a/firmware/t3t1/bitcoinonly/t3t1-2.12.3-bitcoinonly.json b/firmware/t3t1/bitcoinonly/t3t1-2.12.3-bitcoinonly.json
new file mode 100644
index 0000000..c057bea
--- /dev/null
+++ b/firmware/t3t1/bitcoinonly/t3t1-2.12.3-bitcoinonly.json
@@ -0,0 +1,18 @@
+{
+  "required": false,
+  "version": [2, 12, 3],
+  "min_bootloader_version": [2, 1, 6],
+  "min_firmware_version": [2, 7, 2],
+  "bootloader_version": [2, 1, 16],
+  "firmware_revision": "0d3dee246dadb2ee6ee449272f4936a4ff6bbdff",
+  "url": "firmware/t3t1/trezor-t3t1-2.12.3-bitcoinonly.bin",
+  "fingerprint": "f8a22e424c03ce4c49c885559ec13f19da74a2489bdd954ecb010a4fc0905689",
+  "changelog": "* Fixed a crash during PIN verification when upgrading from firmware versions older than 2.9.0.",
+  "translations": {
+    "cs-CZ": "firmware/translations/t3t1/translation-T3T1-cs-CZ-2.12.3.bin",
+    "de-DE": "firmware/translations/t3t1/translation-T3T1-de-DE-2.12.3.bin",
+    "es-ES": "firmware/translations/t3t1/translation-T3T1-es-ES-2.12.3.bin",
+    "fr-FR": "firmware/translations/t3t1/translation-T3T1-fr-FR-2.12.3.bin",
+    "pt-BR": "firmware/translations/t3t1/translation-T3T1-pt-BR-2.12.3.bin"
+  }
+}
diff --git a/firmware/t3t1/releases.json b/firmware/t3t1/releases.json
index 8d720a2..4947af0 100644
--- a/firmware/t3t1/releases.json
+++ b/firmware/t3t1/releases.json
@@ -1,4 +1,19 @@
 [
+  {
+    "required": false,
+    "version": [2, 12, 3],
+    "min_bootloader_version": [2, 1, 6],
+    "min_firmware_version": [2, 7, 2],
+    "bootloader_version": [2, 1, 16],
+    "firmware_revision": "0d3dee246dadb2ee6ee449272f4936a4ff6bbdff",
+    "translations": ["cs-CZ", "de-DE", "es-ES", "fr-FR", "pt-BR"],
+    "url": "data/firmware/t3t1/trezor-t3t1-2.12.3.bin",
+    "fingerprint": "93fde6631771ba77a3c24e84096230c2bbbd3e4e38b35369e536a7777d506a6b",
+    "changelog": "* Fixed a crash during PIN verification when upgrading from firmware versions older than 2.9.0.",
+    "url_bitcoinonly": "data/firmware/t3t1/trezor-t3t1-2.12.3-bitcoinonly.bin",
+    "fingerprint_bitcoinonly": "f8a22e424c03ce4c49c885559ec13f19da74a2489bdd954ecb010a4fc0905689",
+    "changelog_bitcoinonly": "* Fixed a crash during PIN verification when upgrading from firmware versions older than 2.9.0."
+  },
   {
     "required": false,
     "version": [2, 12, 2],
diff --git a/firmware/t3t1/trezor-t3t1-2.12.3-bitcoinonly.bin b/firmware/t3t1/trezor-t3t1-2.12.3-bitcoinonly.bin
new file mode 100644
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--- /dev/null
+++ b/firmware/t3t1/trezor-t3t1-2.12.3-bitcoinonly.bin
@@ -0,0 +1,3 @@
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+size 1168384
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index 0000000..f5933a1
--- /dev/null
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@@ -0,0 +1,3 @@
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diff --git a/firmware/t3t1/universal/t3t1-2.12.3-universal.json b/firmware/t3t1/universal/t3t1-2.12.3-universal.json
new file mode 100644
index 0000000..7054b21
--- /dev/null
+++ b/firmware/t3t1/universal/t3t1-2.12.3-universal.json
@@ -0,0 +1,18 @@
+{
+  "required": false,
+  "version": [2, 12, 3],
+  "min_bootloader_version": [2, 1, 6],
+  "min_firmware_version": [2, 7, 2],
+  "bootloader_version": [2, 1, 16],
+  "firmware_revision": "0d3dee246dadb2ee6ee449272f4936a4ff6bbdff",
+  "url": "firmware/t3t1/trezor-t3t1-2.12.3.bin",
+  "fingerprint": "93fde6631771ba77a3c24e84096230c2bbbd3e4e38b35369e536a7777d506a6b",
+  "changelog": "* Fixed a crash during PIN verification when upgrading from firmware versions older than 2.9.0.",
+  "translations": {
+    "cs-CZ": "firmware/translations/t3t1/translation-T3T1-cs-CZ-2.12.3.bin",
+    "de-DE": "firmware/translations/t3t1/translation-T3T1-de-DE-2.12.3.bin",
+    "es-ES": "firmware/translations/t3t1/translation-T3T1-es-ES-2.12.3.bin",
+    "fr-FR": "firmware/translations/t3t1/translation-T3T1-fr-FR-2.12.3.bin",
+    "pt-BR": "firmware/translations/t3t1/translation-T3T1-pt-BR-2.12.3.bin"
+  }
+}
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