[c-lightning] Release Announcement v23.05: Austin Texas Agreement(ATXA)

[Shahana Farooqui]

Hello Everyone,

We're pleased to announce the 23.05 release of Core Lightning, named by
@instagibbs.

For a list of all changes, please see the changelog
<https://github.com/ElementsProject/lightning/blob/v23.05/CHANGELOG.md>.

Highlights for Users

   - NEW `commando-blacklist` and `commando-listrunes` RPCs for
   blacklisting and listing stored runes.
   - NEW `feerates` added 2 new options as "minimum" and NN"blocks". Use
   explicit block counts or slow/normal/urgent/minimum.
   - `listclosedchannels` RPC to show old, dead channels.
   - `reckless` added support for node.js plugin installation and for
   networks beyond bitcoin and regtest.
   - Spending unilateral close transactions now use dynamic fees based on
   deadlines (and RBF), instead of fixed fees.
   - More bug fixes and improved logging.


Highlights for the Network

   - Blinded payments are now supported by default.
   - Now always double-check bitcoin addresses are correct (no memory
   errors!) before issuing them.
   - Allow slight overpaying, even with MPP, as spec now recommends.


Highlights for Developers

   - Removed `msat` suffix from all millisatoshi fields, as deprecated in
   v0.12.0.
   - PSBTv2 support; all APIs now support both v0 & v2.
   - NEW methods `listpeerchannels`, `listclosedchannels`, `decode` and
   `decodepay` from RPC to `grpc` mapping.
   - Improvements on the  python gossmap implementation.
   - The mTLS private keys are no longer group-readable.
   - Added NEW command `makerune` in hsmtool to make a master rune for the
   node.
   - NEW `setpsbtversion` command to aid debugging and compatibility.
   - `cln-rpc` anc `cln-grpc` can now work with a range of versions.


Since 23.02.2, we've had 265 commits by 17 authors over 59 days.

A special thanks to the 2 first time contributors:

Shahana Farooqui @ShahanaFarooqui
Anmol Agrawal @anmode

~ @ShahanaFarooqui :), @EndothermicDev, @cdecker, @niftynei and
@RustyRussell