1  # Release Notes
  2  
  3  ## Routing
  4  
  5  * The default CLTV delta delay [has been increased from 40 blocks to 80
  6    blocks](https://github.com/lightningnetwork/lnd/pull/7609).
  7  
  8  ## Wallet
  9  
 10  - The logging around transaction broadcast failures [has been improved by always
 11    logging the causing error and the raw transaction as
 12    hex](https://github.com/lightningnetwork/lnd/pull/7513).
 13  
 14  ## `lncli`
 15  
 16  * The `lncli wallet psbt fund` command now allows users to specify the
 17    [`--min_confs` flag](https://github.com/lightningnetwork/lnd/pull/7510).
 18   
 19  * [Add time_lock_delta overflow check for UpdateChannelPolicy](https://github.com/lightningnetwork/lnd/pull/7350)
 20    that ensure `time_lock_delta` is greater or equal than `0` and less or equal than `65535`
 21  
 22  * [Added ability to backup, verify and
 23    restore single channels](https://github.com/lightningnetwork/lnd/pull/7437)
 24    to and from a file on disk.
 25  
 26  * [Add a `fundmax` flag to `openchannel` to allow for the allocation of all
 27    funds in a wallet](https://github.com/lightningnetwork/lnd/pull/6903) towards
 28    a new channel opening.
 29  
 30  ## Watchtowers
 31  
 32  * [Fix Address iterator 
 33    panic](https://github.com/lightningnetwork/lnd/pull/7556)
 34  * [Allow caller to filter sessions at the time of reading them from 
 35    disk](https://github.com/lightningnetwork/lnd/pull/7059)
 36  * [Clean up sessions once all channels for which they have updates for are
 37    closed. Also start sending the `DeleteSession` message to the
 38    tower.](https://github.com/lightningnetwork/lnd/pull/7069)
 39  * [Don't load exhausted sessions when not
 40    needed](https://github.com/lightningnetwork/lnd/pull/7405). Also add a new
 41    `exclude_exhausted_sessions` boolean flag to the relevant lncli wtclient
 42    commands.
 43  * [Recover from StateUpdateCodeClientBehind 
 44    error](https://github.com/lightningnetwork/lnd/pull/7541) after data loss. 
 45  
 46  ## Build
 47  * [ldflags were being incorrectly passed](
 48  https://github.com/lightningnetwork/lnd/pull/7359)
 49  
 50  ## Misc
 51  
 52  * [Return `FEE_INSUFFICIENT` before checking balance for incoming low-fee
 53    HTLCs.](https://github.com/lightningnetwork/lnd/pull/7490).
 54  
 55  * Optimize script allocation size in order to save
 56    [memory](https://github.com/lightningnetwork/lnd/pull/7464).
 57  
 58  * When resolving outgoing HTLCs onchain, the HTLC timeout resolver will now
 59    [monitor mempool](https://github.com/lightningnetwork/lnd/pull/7564) for
 60    faster preimage extraction.
 61   
 62  ## Spec
 63  
 64  * [Add test vectors for
 65    option_zero_fee_htlc_tx](https://github.com/lightningnetwork/lnd/pull/7439)
 66  
 67  ## RPC
 68  
 69  * A [debug log](https://github.com/lightningnetwork/lnd/pull/7514) has been
 70    added to `lnrpc` so the node operator can know whether a certain request has
 71    happened or not.
 72  * [Add peer_scid_alias to the response of 
 73    `listchannels`](https://github.com/lightningnetwork/lnd/pull/7366)
 74  
 75  * Message `funding_locked` [has been
 76    renamed](https://github.com/lightningnetwork/lnd/pull/7517) to
 77    `channel_ready` internally to match the specs update. This should not change
 78    anything for the users since the message type(36) stays unchanged, except in
 79    the logging all the appearance of `funding_locked` replated expression is
 80    replaced with `channel_ready`.
 81  
 82  ## Bug Fixes
 83  
 84  * [Fix a bug where lnd crashes when psbt data is not fully 
 85  available](https://github.com/lightningnetwork/lnd/pull/7529).
 86  
 87  * [Put back P2TR as default change type
 88    in batch_open_channel](https://github.com/lightningnetwork/lnd/pull/7603).
 89    
 90  * [Fix log output](https://github.com/lightningnetwork/lnd/pull/7604).
 91  
 92  * [Channels opened with custom fee policies are now able to forward payments
 93    correctly without needing to restart
 94    first](https://github.com/lightningnetwork/lnd/pull/7597).
 95  
 96  * [Fix a bug](https://github.com/lightningnetwork/lnd/pull/7613) where the 
 97    funding manager would error out if no persisted initial forwarding policy is 
 98    found for a channel. 
 99  
100  * The internal rebroacaster [will no longer continue to rebroadcast stale
101    sweeper transactions (have a conflict mined or in the
102    mempool)](https://github.com/lightningnetwork/lnd/pull/7599).
103  
104  
105  # Contributors (Alphabetical Order)
106  
107  * ardevd
108  * Elle Mouton
109  * hieblmi
110  * Oliver Gugger
111  * Olaoluwa Osuntokun
112  * Pierre Beugnet
113  * Tommy Volk
114  * Yong Yu
115  * ziggie1984