As of 2020-08-24, the following amendments have been enabled on Testnet:
fixAmendmentMajorityCalc (4F46DF03559967AC60F2EB272FEFE3928A7594A45FF774B87A7E540DB0F8F068)
fix1781 (25BA44241B3BD880770BFA4DA21C7180576831855368CBEC6A3154FDE4A7676E)
HardenedValidations (1F4AFA8FA1BC8827AD4C0F682C03A8B671DCDF6B5C4DE36D44243A684103EF88)
Additionally, the following amendment has gained majority and is scheduled to activate in two weeks: