v4.11.0 of Cashu-TS. the library behind many Cashu wallets, is now available. This release has numerous fixes, including websocket close callback, default request timeout and better NUT-19 retry handling. This stable release v4 is recommended for all production wallets. We also have v5.0.0-RC.11 release candidate which implements the experimental "Nutroot" and "keyset v3" (BLS). Testing is welcomed, but be aware that spec changes may be breaking between RC versions.