commit 45c759873c9281af3ea452ad57dc851468dc0ca3
parent a95738f9254ef0f2a06b67f612bb22e24dbdbbf4
Author: ThomasV <thomasv@electrum.org>
Date: Wed, 24 Jun 2020 11:50:46 +0200
update release notes
Diffstat:
| M | RELEASE-NOTES | | | 69 | +++++++++++++++++++++++++++++++++++++++++++++------------------------ |
1 file changed, 45 insertions(+), 24 deletions(-)
diff --git a/RELEASE-NOTES b/RELEASE-NOTES
@@ -1,32 +1,52 @@
-# Release 4.0.0b0 - Codename? (June XX, 2020)
-
- * Experimental support for the Lightning Network
- - Lightning is disabled by default. It can be enabled, per-wallet,
- in the GUI, in Wallet>Information (or init_lightning cmd). Currently
- Lightning is restricted to HD p2wpkh wallets (including watch-only
- and hardware wallets).
+# Release 4.0 - (not released yet. ETA June 2020)
+
+ * Lightning Network support (experimental)
+ - Our implementation of Lightning relies on Electrum servers to
+ query channel states. Since servers can lie about the state of a
+ channel, users should either use a server that they trust, or
+ setup a private watchtower (see below). A watchtower is also
+ recommended for lightning wallets that remain offline for
+ extended periods of time (the default CSV 'to_self_delay' is 1
+ week).
+ - Lightning funds cannot be restored from seed. Instead, users need
+ to create static backups of their channels. Static backups cannot
+ be used to perform lightning transactions, they can only be used
+ to trigger a remote-force-close of a channel.
+ - Lightning-enabled wallet files must not be copied. Instead, a
+ backup of the wallet can be created from the Qt menu, and it will
+ contain static backups of all its channels. Backups can also be
+ exported for each channel (e.g. via QR code), and imported in
+ another wallet. Since backups are encrypted with a key derived
+ from the wallet's xpub, they can only be imported into another
+ instance of the same wallet, or a watch-only version of it. The
+ force-close is not triggered automatically when the backup is
+ imported; imported backups can live inside a wallet file.
+ - Lightning can be enabled in the GUI (Wallet>Information) or from
+ the CLI (init_lightning). Lightning is currently restricted to HD
+ p2wpkh wallets (including watch-only and hardware wallets). The
+ Qt GUI, CLI/RPC, and the kivy GUI all have LN support, with
+ feature-richness in that order.
- LN protocol details: dataloss_protect and static_remotekey are
required; varonion and payment_secret are implemented, MPP not yet.
Channels are not announced ('private'), forwarding is disabled.
- The default 'to_self_delay' CSV is 1 week.
- - The Qt GUI, CLI/RPC, and the kivy GUI all have LN support,
- with feature-richness in that order.
+ Gossip queries are not implemented.
- Submarine swaps: the GUI integrates a service that offers
atomically exchanging on-chain and lightning bitcoins for a fee.
Electrum Technologies runs a central server for this, powered by
the Boltz backend.
- - Static channel backups: a backup for each channel can be exported
- that can be used to trigger a remote-force-close. These are
- encrypted from a key derived from the wallet's xpub, and can
- be imported into another copy of the same wallet or a watch-only
- version of it. (the force close is not triggered automatically,
- imported backups can live inside a wallet file)
- - watchtowers?
- * Support Partially Signed Bitcoin Transactions (BIP-174) has been
- fully integrated. (#5721) The previously used custom partial tx
- format is removed, i.e. the partial transaction format has been
- incompatibly changed. Users should make sure that all instances of
- Electrum they use to co-sign or offline sign, are updated together.
+ - Watchtowers: Electrum can run a local watchtower (GUI setting),
+ or it can connect to a remote watchtower. A watchtower contains
+ pre-signed transactions and does not need your private keys. A
+ local watchtower will watch your channels whenever an Electrum
+ instance is running, without needing access to your wallet file.
+ An Electrum daemon can be configured to be used as a remote
+ watchtower by setting 'watchtower_address', 'watchtower_user' and
+ 'watchtower_password'.
+ * Partially Signed Bitcoin Transactions (PSBT, BIP-174) are supported
+ (#5721). The previous Electrum partial transaction format is no
+ longer supported, i.e. this is an incompatible change. Users should
+ make sure that all instances of Electrum they use to co-sign or
+ offline sign, are updated together.
* Hardware wallets: several fixes in general; notable changes:
- The BitBox02 is now supported (#5993)
- Multisig support for Coldcard (#5440)
@@ -43,8 +63,9 @@
e.g. RBF fee-bumping, LN channel opens, submarine swaps.
- Editable tx preview dialog that allows e.g. changing the locktime,
toggling RBF, and manual coinjoins.
- * Http PayServer changes: the electrum-merchant repository has been
- integrated directly into the main codebase.
+ * HTTP PayServer: The configuration of a bitcoin-accepting website
+ using Electrum has been simplified and requires fewer steps (see
+ documentation). The Payserver supports BIP70 and Lightning payments.
* Android:
- We now build two APKs, one for ARMv7 and one for ARMv8
- The kivy GUI now supports importing BIP39 seeds
