Austin Bitdevs Underground is back for another exciting edition! If you are in Austin this Thursday, come on by the BTC++ house to talk about what's new in Bitcoin!

🗓️ Thursday, 18 June 2026
⏰ 6:00PM - 8:00PM Texas time!
📍 BTC++ House in Austin (sign up for address)

Here's the current list of topics, although I expect it will grow a good deal before Thursday:

ReleasesReleases

- Alby Hub 1.23 - Ark Backend, Just-in-Time channels, Cards page - #1507121
- bark launches on mainnet #1505322
- bark SDK
- barkd
- Noah Wallet - bark
- Arké Wallet - bark
- lxdev launches bitcoin-denominated ecash wiht zk-proofs #1500885
- Added contributing documentation for Bitcoin Backbone - Antoine Ariard
- BDK language bindings 3.0.0

BIPsBIPs

- Testnet5 - draft BIP
- Significant updates to BIP 322

VulnerabilitiesVulnerabilities

- 2 Vulnerabilities in bark to steal funds - floppy #1507823
- Rug the mints - floppy

ToolsTools

- MuSig2 between Core, ColdCard and Ledger - Sjors #1507919
- OpenAuspex: Bitcoin-anchored warrant canaries for Nostr #1506893
- satd: a Bitcoin full node in Rust with batteries included #1506524
- Wicked Smart Bitcoin Casacius Explorer #1505233
- Adding automated reproducibility checking for Bitcoin Safe - Andreas Griffin #1504206
- Bitnod.es bitcoin node monitoring tool and webiste launched - BitMex Research
- bitdis.org a fun newish bitocin node network dashboard #1500350
- LLM weights that are small enough to fit in a bitcoin tx - rijndael #1501247
- ECDSA.fail - can you break ECDSA? #1501167
- Give me lightning
- Cashu mint auditor
- MONAD: Monetized Onion Network Access Daemon #1498713
- blackbox_node #1498699
- Bitcoin Depression Index - John Carvalho #1497994
- SimplePool - Layer2Labs
- Orange Dev Network: First Public Map of Who's actually building Bitcoin - Soru Kumar #1496448
- Stateless architecture for private Bitcoin coordination #1496178

NewsNews

- PlebLab presents Hackalajara 2.0 #1508803 #1504737
- BTC++ NAIROBI JUNE 17-19
- Help kids in your state learn about bitcoin next year #1506582
- Lexe launches buy with CashApp: instant buys into your self-custody LN wallet #1506648
- Botanix bites the dust #1505664
- 84-page Bitcoin manga
- The orchard counterfeiting vulnerability in Zcash - zooko #1502689
- Better and Coinbase do first Token-backed Mortgage approved by Fannie Mae #1502522
- Conduition receives Bitcoin research funding from Brink #1501705
- $8m in Bitcoin burned
- TABCONF 8 will be the last TABCONF #1497058
- Mining Unit - Localhost Research #1496782

ResearchResearch

- Coinjoin ecosystem for Wasabi 2.x and Whirlpool coordinator-based privacy #1506531
- Six hard problems, one solution - Alekos Filini, Enclavia #1507349
- Economics of Protocol Design: Proposing Lightning over Ark - Rusty Russel #1502865
- BIP 110 debate between Chris Guida and Supertestnet #1504143
- Sedited (The Charlatan) on Validation logic in Bitcoin Core #1504013
- Pubic key recovery for EC leaves in P2MR (BIP-360) by Boris Nagaev
- Quantum threat: Let's not turn Bitcoin into an altcoin - Antoine Ponsoit
- Burak introduces Cube #1499581
- running a cashu mint in a TEE - calle #1498908
- Dog park: privacy in bark #1498328
- Matching Hashes: Reproducing the Guix-built Bitcoin Core release binary with Nix
- Brink's 2025 Annual Report