[Feature request]: Testnet 4 support

[4rkad]

Testnet 3 right now is unusable. The fees are very high, making it difficult to use Phoenix on testnet. Could testnet 4 be enabled in Phoenix?

[Delgado74]

Hi. I'm an educator for a Bitcoin community and I'm trying to teach the use of Phoenix as a Self-Custody Lightning wallet.
At one point I used it while Testnet3 was active and everything was fine. But right now with the use of Testnet4 I'm having difficulty making the Onchain deposit from another wallet that also uses Testnet4.

I have the latest Phoenix Testnet update installed from Github and when checking in Mempool.space it tells me that the transaction is being made on Testnet4.

Thanks

[dpad85]

Testnet4 support is not ready yet. It should be available soon™. For now, you will not be able to make Testnet4 payments on Phoenix.

Testnet3 still kinda works, though you have to use very high fees when you make on-chain payments (e.g. 500s/vb). Also blocks only happen every 20 minutes.