Australia's banking regulator, APRA, plans to phase out hybrid bonds, known as Additional Tier 1 (AT1) capital instruments, over the next eight years to prevent crises similar to the Credit Suisse write-downs. The transition will involve replacing AT1 with more effective Tier 2 and Common Equity Tier 1 capital, with changes expected to be finalized by the end of 2025 and implemented by January 1, 2027. This decision follows global concerns about the complexity and legal challenges associated with AT1 bonds, which have proven ineffective in absorbing losses during financial stress.