bdk_wallet 3.2.0 released recently, with support for experimental bdk-tx APIs, detailed finalization outcomes, and BIP-431 rule 2!

github.com/bitcoindevkit/…

2026 Q3 Update: What Have We Been Up To?

bdk_wallet 3.2.0, bdk-dart 1.0, bdk-cli 4.0, and more!

bitcoindevkit.org/blog/2026/10/0…

BDK bindings 3.1.0 are out! Custom signers, coin selection, multipath descriptors & more, built on bdk_wallet 3.1.0

github.com/bitcoindevkit/…

Leonardo (@_oleonardolima) is a developer based in Brazil 🇧🇷, joining plebhash and Ansh among the first developers Btrust has directly funded outside Africa.

He works on the @bitcoindevkit, a collection of libraries and tools for building Bitcoin wallets.

He maintains BDK’s clients, which help wallets obtain the information needed to track transactions and balances.

With the long-term grant, Leonardo will continue this maintenance work alongside developer mentorship, supporting both wallet infrastructure and the people building it.

2026 Q2 Update: What Have We Been Up To?

bdk_wallet 3.1.0, bindings 3.0.0 (brand new libraries! bdk-rn + bdk-dart), and more!

bitcoindevkit.org/blog/2026_q2_u…

A big thanks to this years @summerofbitcoin students Rishit and Domenec. Some great work was done and FOSS skills learned.
domenec-madrid.github.io/blog/2026/bdk-…
blog.summerofbitcoin.org/from-a-500-hac…

NOW LIVE 🎥: Compact Block Filters for Users and Wallet Developers

Featuring: thunderbiscuit (@thunderB__)

youtu.be/zVhe8gpgEww

NOW LIVE 🎥: BDK Expanding: From Rust Core to Mobile Wallets

Featuring: Matthew Ramsden (@matthewramsden)

youtu.be/ngm8zjH5JDQ

In this episode of 🎙️Bitshala Bitcoin Talks🎙️we sit with @codingp110 to explore her journey.

From a college student discovering Bitcoin, to becoming a Bitshala Fellow contributing to @bitcoindevkit.🚀

Falling down the Bitcoin rabbit hole is just the beginning. A conversation ond the surface, and into the technology that makes Bitcoin possible.🎧📽️⏬

A high level overview of how funding works in bitcoin open-source. x.com/i/article/2089…

Abiodun is a software engineer and Bitcoin open-source contributor based in Lagos, Nigeria.

His work focuses on wallet infrastructure in the @bitcoindevkit ecosystem. @_abiodunAwoyemi is a secondary maintainer of bdk-tx, a transaction-building library in the BDK ecosystem.

His red many areas that directly affect wallet safety and reliability. These include fee calculation fixes, anti-fee-sniping support, Payjoin examples, CPFP fee-bumping support, locktime handling, BIP353 payment support reviews, PSBT creation, BIP322 message signing, and continuous integration improvements.

With the long-term grant, Abiodun will continue strengthening BDK and BDK-TX.

His work will focus on making Bitcoin transaction construction safer, more predictable, and easier for developers to use.

Abiodun also co-organizes @BitDevsLagos 🇳🇬, helping create space for technical Bitcoin discussion and contributor growth in Nigeria.

Matthew Ramsden (@matthewramsden) announces that BDK React Native and BDK Art are now launched and supported by the BDK org

BDK (@bitcoindevkit) contributor Thunderbiscuit (@thunderB__) is now on stage at @btcplusplus Consensus Edition talking about Compact Block Filters for users and wallet devs!

Nice repo from @thunderB__ that will download all compact block filters (be careful doing this on mainnet because it will be 12GB!) and store them in a db so you can run queries and analyze the data

h/t @btcplusplus Toronto

github.com/thunderbiscuit…

Today, we wrapped up the week 5 study group session of the Bitcoin CLI live cohort. ⚡

This week, participants took a deeper dive into Bitcoin Script by exploring Pay-to-Script-Hash (P2SH) transactions and script-based timelocks.

The cohort learned how P2SH makes it possible to ding conditions into Bitcoin transactions, including multisignature and SegWit scripts.

They also explored how timelock opcodes like CheckLockTimeVerify (CLTV) and CheckSequenceVerify (CSV) can be used to control when bitcoin can be spent, enabling more advanced and flexible transaction workflows.

Through hands-on technical exercises, partner discussions, and collaborative learning, participants gained practical experience writing and working with these more advanced Bitcoin scripting features.

📢 Version 4.0.0 of BDK CLI has been released!

Massive thanks to all the contributors that made this release possible and especially to @tvpeter for being the bdk-cli maintainer and delivering this milestone.

github.com/bitcoindevkit/…

This release introduces experimental support for creating silent payment transactions and adds support for BIP-353 DNS payment instructions. It also adds UTXO locking through new wallet commands.

Async payjoin sessions are now persisted to SQLite, so interrupted payjoin sessions can be resumed. The release also includes internal refactoring that improves readability and makes adding new commands easier and less prone to errors and updates the Wallet API to v3.1.0. 🚀

Too few people understand the bdk_chain crate deeply, so @_oleonardolima hosted a deep dive at Casa21 with our fellows and grantees.

We went through how @bitcoindevkit models chain data, transaction graphs, anchors, checkpoints, spks, seen-at timestamps, and the indexing logic n about transactions without depending on a single backend.

These sessions are part of our monthly in-person technical deep dives, where we fly Vinteum fellows and grantees to São Paulo for a week of focused work: reading specs, reviewing PRs, studying architectures, finding bugs, and contributing together.

In-person protocol work is powerful.

📣 BDK Wallet 3.1.0 was released this month!

github.com/bitcoindevkit/…

3.1.0 introduces new ways to have even more control over the signing process, as well as bug fixes and improvements.