Fungibility http://diyhpl.us/wiki/transcripts/scalingbitcoin/milan/fungibility-overview/
Onion routing in lightning http://diyhpl.us/wiki/transcripts/scalingbitcoin/milan/onion-routing-in-lightning/
Unlinkable outsourced channel monitoring http://diyhpl.us/wiki/transcripts/scalingbitcoin/milan/unlinkable-outsourced-channel-monitoring/
bip151 peer encryption http://diyhpl.us/wiki/transcripts/scalingbitcoin/milan/bip151-peer-encryption/
security and performance analysis http://diyhpl.us/wiki/transcripts/scalingbitcoin/milan/on-the-security-and-performance-of-proof-of-work-blockchains/
collective signing http://diyhpl.us/wiki/transcripts/scalingbitcoin/milan/collective-signing/
fast difficulty adjustment algorithm http://diyhpl.us/wiki/transcripts/scalingbitcoin/milan/fast-difficulty-adjustment/
jute and DAG braiding stuff http://diyhpl.us/wiki/transcripts/scalingbitcoin/milan/jute-braiding/
client-side validation http://diyhpl.us/wiki/transcripts/scalingbitcoin/milan/client-side-validation/
"breaking the chain" session http://diyhpl.us/wiki/transcripts/scalingbitcoin/milan/breaking-the-chain/
day 1 group summaries http://diyhpl.us/wiki/transcripts/scalingbitcoin/milan/day-1-group-summaries/
day 2 group summaries http://diyhpl.us/wiki/transcripts/scalingbitcoin/milan/day-2-group-summaries/
Credits:
kanzure @ reddit. See Thread here: