News

Block 600,000
https://twitter.com/pwuille/status/1185346625897517056

Sudo Flaw Linux
https://thehackernews.com/2019/10/linux-sudo-run-as-root-flaw.html

NordVPN Hacked
https://techcrunch.com/2019/10/21/nordvpn-confirms-it-was-hacked/

Teamviewer & APT 41
https://twitter.com/cglyer/status/1182413194360508419

Crackdown on Mining in Inner Mongolia
https://bitcoinmagazine.com/articles/chinese-regulators-demand-cleanup-of-bitcoin-mining-in-inner-mongolia

Electrum 4.0 will have Lightning Support
https://twitter.com/ElectrumWallet/status/1183706431473815552

Taproot Workshop
http://diyhpl.us/wiki/transcripts/bitcoinops/schnorr-taproot-workshop-2019/notes/

Virtual Currency Act CA
https://coincenter.org/entry/the-uniform-law-commission-s-model-virtual-currency-act-has-been-introduced-in-california

Schnorr/Taproot Review Period

Stats

Bitcoin Transaction Monitor
https://mempool.observer/monitor/

Segwit Trends
https://dashboard.bitcoinops.org/d/xVQwtADiz/segwit-usage-trends?refresh=1h&orgId=1&from=now-6M&to=now

New Work & Research

Taproot Updates
https://lists.linuxfoundation.org/pipermail/bitcoin-dev/2019-October/017378.html

Bitcoin Tx to words
https://twitter.com/notgrubles/status/1180861313452511233

Discreet Log Contract Series
https://suredbits.com/discreet-log-contracts-part-4-security-and-trust-model/

Erlay BIP
https://github.com/naumenkogs/bips/blob/bip-reconcil/bip-reconcil.mediawiki

SNICKER
https://gist.github.com/AdamISZ/2c13fb5819bd469ca318156e2cf25d79

Bitcoin PRs

9% less memory: make SaltedOutpointHasher noexcept
https://github.com/bitcoin/bitcoin/pull/16957

Cache 26% more coins: Reduce CCoinsMap::value_type from 96 to 76 bytes
https://github.com/bitcoin/bitcoin/pull/17060

p2p: Avoid forwarding ADDR messages to SPV nodes
https://github.com/bitcoin/bitcoin/pull/17194

Serialization Improvements
https://github.com/bitcoin/bitcoin/pull/10785

Rust in Bitcoin Core
https://github.com/bitcoin/bitcoin/issues/17090
http://www.erisian.com.au/bitcoin-core-dev/log-2019-04-11.html#l-392

Rust-based Backup over REST block downloader
https://github.com/bitcoin/bitcoin/pull/16762

Remove BIP61 reject messages
https://github.com/bitcoin/bitcoin/pull/15437

descriptors: Introduce sortedmulti descriptor
https://github.com/bitcoin/bitcoin/pull/17056

Lightning PRs ⚡

Rusty Lightning Conf Overview
https://twitter.com/rusty_twit/status/1186149733301022720

C-lightning 0.7.3rc
https://github.com/ElementsProject/lightning/blob/master/CHANGELOG.md

LND 0.8
https://blog.lightning.engineering/announcement/2019/10/15/lnd-v0.8.html

Reproducible Builds in LND
https://github.com/lightningnetwork/lnd/pull/3545