diff --git a/core/.changelog.d/2561.added b/core/.changelog.d/2561.added
new file mode 100644
index 0000000000..cedfbf8218
--- /dev/null
+++ b/core/.changelog.d/2561.added
@@ -0,0 +1 @@
+Support for Cardano CIP-36 governance registration format
diff --git a/python/.changelog.d/2561.added b/python/.changelog.d/2561.added
new file mode 100644
index 0000000000..cedfbf8218
--- /dev/null
+++ b/python/.changelog.d/2561.added
@@ -0,0 +1 @@
+Support for Cardano CIP-36 governance registration format
diff --git a/tests/ui_tests/fixtures.json b/tests/ui_tests/fixtures.json
index 0d55be4eb9..d5f9a38fbc 100644
--- a/tests/ui_tests/fixtures.json
+++ b/tests/ui_tests/fixtures.json
@@ -1171,8 +1171,10 @@
 "TT_cardano-test_sign_tx.py::test_cardano_sign_tx[transaction_with_auxiliary_data_hash]": "53b24d40fc3ed95b8f102e8c5f2b885836eb5c56dd8aa0fdf3116bfb7187813c",
 "TT_cardano-test_sign_tx.py::test_cardano_sign_tx[transaction_with_base_address_change_output_p-3c7243e1": "54266c3f100fae1303bb579bb3b731a24908eee78c634b1ba92af0dfbcf19d82",
 "TT_cardano-test_sign_tx.py::test_cardano_sign_tx[transaction_with_base_address_change_output_s-20438873": "b616c4005ee1a2728953ceb3a154e578d8ce53a908b6f11e8598290a3842f08a",
-"TT_cardano-test_sign_tx.py::test_cardano_sign_tx[transaction_with_governance_registration]": "3abfe7b0f3de4adacf9d07653eb0d3c80eb4c8876dc456f8c88b2e68ba14850c",
-"TT_cardano-test_sign_tx.py::test_cardano_sign_tx[transaction_with_everything_set_except_pool_r-1e1ef130": "9130bf5c2da6543833a3c841b18e649768f5c27108695a6227b0cb747a34be3d",
+"TT_cardano-test_sign_tx.py::test_cardano_sign_tx[transaction_with_cip15_governance_registration]": "c4236858bd8dd94f5db41ee3ff3a02e31b3b576c7a1c725dfdbf0f3b8a273305",
+"TT_cardano-test_sign_tx.py::test_cardano_sign_tx[transaction_with_cip36_governance_registratio-35e04232": "2651ec619d75e4380f088db746ae1f68fa4fe74fdfb5c566d0738187a9afb624",
+"TT_cardano-test_sign_tx.py::test_cardano_sign_tx[transaction_with_cip36_governance_registratio-f00c1b65": "e219985044bc8ef2e6c6971dc434c3120364d83aa863fd66cacff9652ee46311",
+"TT_cardano-test_sign_tx.py::test_cardano_sign_tx[transaction_with_everything_set_except_pool_r-1e1ef130": "33bf8795141702aba3b0360b95a99fac8fab36bda607cd37b1b7ed689f0fcb1d",
 "TT_cardano-test_sign_tx.py::test_cardano_sign_tx[transaction_with_stake_deregistration]": "fea08104b2228ba952c9f0ccb64a88fee1c1fc91aa1fca951e812d1a50f7c771",
 "TT_cardano-test_sign_tx.py::test_cardano_sign_tx[transaction_with_stake_deregistration_and_withdrawal]": "fea08104b2228ba952c9f0ccb64a88fee1c1fc91aa1fca951e812d1a50f7c771",
 "TT_cardano-test_sign_tx.py::test_cardano_sign_tx[transaction_with_stake_deregistration_with_ac-9ca046f0": "a05ee17a405d989076f31a3aea3f83ffc9fa0ad266dfcd6e9106b064a7d3279b",
@@ -1283,8 +1285,9 @@
 "TT_cardano-test_sign_tx.py::test_cardano_sign_tx_failed[testnet_protocol_magic_with_mainnet_network_id]": "9e1f554bb74f847e8f09201dda808fd1e0cdb68737515f34d6ad435957671c77",
 "TT_cardano-test_sign_tx.py::test_cardano_sign_tx_failed[testnet_transaction_with_mainnet_output]": "5a608b731c43231bcae0a856e74497612ccfeff809e5022dfb27798863e1bfb1",
 "TT_cardano-test_sign_tx.py::test_cardano_sign_tx_failed[total_collateral_is_present]": "9e1f554bb74f847e8f09201dda808fd1e0cdb68737515f34d6ad435957671c77",
-"TT_cardano-test_sign_tx.py::test_cardano_sign_tx_failed[transaction_with_both_auxiliary_data_b-64274ac4": "2b85ec100a491345e0084c4efc226f60645fb47c56fb84ff133b2cb850cdd1f2",
-"TT_cardano-test_sign_tx.py::test_cardano_sign_tx_failed[transaction_with_governance_registration-11533421": "2b85ec100a491345e0084c4efc226f60645fb47c56fb84ff133b2cb850cdd1f2",
+"TT_cardano-test_sign_tx.py::test_cardano_sign_tx_failed[transaction_with_both_auxiliary_data_b-d83df998": "2b85ec100a491345e0084c4efc226f60645fb47c56fb84ff133b2cb850cdd1f2",
+"TT_cardano-test_sign_tx.py::test_cardano_sign_tx_failed[transaction_with_both_voting_public_ke-0ded7777": "2b85ec100a491345e0084c4efc226f60645fb47c56fb84ff133b2cb850cdd1f2",
+"TT_cardano-test_sign_tx.py::test_cardano_sign_tx_failed[transaction_with_governance_registrati-efb78b43": "2b85ec100a491345e0084c4efc226f60645fb47c56fb84ff133b2cb850cdd1f2",
 "TT_cardano-test_sign_tx.py::test_cardano_sign_tx_failed[two_owners_with_path]": "7b2acc6b455cc40edcacdd0806c04040241f3c21205cfd25a3420c5ef65f33c4",
 "TT_cardano-test_sign_tx.py::test_cardano_sign_tx_failed[unsupported_address_type]": "5a608b731c43231bcae0a856e74497612ccfeff809e5022dfb27798863e1bfb1",
 "TT_cardano-test_sign_tx.py::test_cardano_sign_tx_failed[with_multisig_transaction_signing_mode]": "d2ee9af7349df63db617a497532ed03a9fa4c26dac455348cc9e65ca7bc04de7",
@@ -1304,6 +1307,7 @@
 "TT_cardano-test_sign_tx.py::test_cardano_sign_tx_show_details[ordinary_transaction_with_output-9ba7352d": "3190bb90a5a30681ee8854b1a1e68130b2399b411aff9cb100ef05a7aed9543d",
 "TT_cardano-test_sign_tx.py::test_cardano_sign_tx_show_details[plutus_transaction_with_reference_input]": "27e3cda4e4c30e4e26d8bbf05309b7242d2884b4435551242110de665d9d050a",
 "TT_cardano-test_sign_tx.py::test_cardano_sign_tx_show_details[plutus_transaction_with_total_co-e846c221": "90dc92ab19e76b77afae69a0580a10086b6bfaf42a10ed3623608430466546b0",
+"TT_cardano-test_sign_tx.py::test_cardano_sign_tx_show_details[transaction_with_cip36_governanc-36bf9253": "4e0664cff1e6e6a34907889bb6f18d9991b1f8f751b940af2c50f20dc4608aed",
 "TT_cardano-test_sign_tx.py::test_cardano_sign_tx_show_details[transaction_with_stake_deregistr-6e84da2f": "ca96bc67bc62a581af51bae76f75be98068f1157b2be9f1579a631c6e2008591",
 "TT_eos-test_get_public_key.py::test_eos_get_public_key": "02f08c137210d095c604b3382a57167dcf51a5f45ec5f63f79818851154e100e",
 "TT_eos-test_signtx.py::test_eos_signtx_buyram": "d9dd2567542e4c6a954ea9c98f5df7f9fd63e08c3009a4d773be39f07f05afbf",
@@ -2232,8 +2236,8 @@
 "TTui2_cardano-test_sign_tx.py::test_cardano_sign_tx[transaction_with_auxiliary_data_hash]": "64c54a2ab8597b5c61fdeb6f2ff0175f5bd670865789a616e663bbdc61f06475",
 "TTui2_cardano-test_sign_tx.py::test_cardano_sign_tx[transaction_with_base_address_change_output_p-3c7243e1": "b5a5186920fd9ed49da548f28adb349556989202588a5338d014ce5f67be20b0",
 "TTui2_cardano-test_sign_tx.py::test_cardano_sign_tx[transaction_with_base_address_change_output_s-20438873": "931413769637b60239c7c779da17f9ecf6cd1510b1062ed211219cfd200c9bda",
-"TTui2_cardano-test_sign_tx.py::test_cardano_sign_tx[transaction_with_catalyst_registration]": "dd1cbea03a9a6d994372394c79b8b76a45654c4db23f3245eb0e85ba3fbe331b",
-"TTui2_cardano-test_sign_tx.py::test_cardano_sign_tx[transaction_with_everything_set_except_pool_r-1e1ef130": "b6c368d0d6eca71e4c3ab75ce6c346f43aceefeeb9aa63c3db5547274f3394a8",
+"TTui2_cardano-test_sign_tx.py::test_cardano_sign_tx[transaction_with_everything_set_except_pool_r-1e1ef130": "efe16298308e9d22b5621d55444b34e037879a67c79bbcb32cd62b783149e9c7",
+"TTui2_cardano-test_sign_tx.py::test_cardano_sign_tx[transaction_with_governance_registration]": "dd1cbea03a9a6d994372394c79b8b76a45654c4db23f3245eb0e85ba3fbe331b",
 "TTui2_cardano-test_sign_tx.py::test_cardano_sign_tx[transaction_with_stake_deregistration]": "1ffbcf96b0cce80bb86b325d6ac3eebc7b8528197d20a53ef8eb25eb420cf7c1",
 "TTui2_cardano-test_sign_tx.py::test_cardano_sign_tx[transaction_with_stake_deregistration_and_withdrawal]": "1ffbcf96b0cce80bb86b325d6ac3eebc7b8528197d20a53ef8eb25eb420cf7c1",
 "TTui2_cardano-test_sign_tx.py::test_cardano_sign_tx[transaction_with_stake_deregistration_with_ac-9ca046f0": "4bfbcb418f4a9a19812bbe017718b5860bd9cb9fa635fb0bc3cba1092bb2f0ba",