diff --git a/TODO-RELEASE b/TODO-RELEASE
index 9f5240f..41bd5d8 100644
--- a/TODO-RELEASE
+++ b/TODO-RELEASE
@@ -11,6 +11,7 @@
 core      ADD       osmo_sock_multiaddr_get_ip_and_port(), osmo_multiaddr_ip_and_port_snprintf(), osmo_sock_multiaddr_get_name_buf()
 core      ADD       osmo_sock_sctp_get_peer_addr_info()
 core      ADD       gsmtap_inst_fd2() core, DEPRECATE gsmtap_inst_fd()
+core		behavior change		osmo_tdef_fsm_inst_state_chg(): allow millisecond precision
 isdn		ABI change		add states and flags for external T200 handling
 gsm		ABI change		add T200 timer states to lapdm_datalink
 gsm		ABI change		add UI queue to struct lapdm_datalink