Since RC3:
- Reduce duplicate blocks in bitswap by increasing some timeouts and fixing the use of sessions in the
ipfs pincommand. - Fix some bugs in the
ipfs dhtCLI commands. - Ensure bitswap cancels are sent when the request is aborted.
- Optimize some bitswap hot-spots and reduce allocations.
- Harden use of the libp2p identify protocol to ensure we never "forget" our peer's protocols. This is important in this release because we're using this information to determine whether or not a peer is a member of the DHT.
- Fix some edge cases where we might not notice that a peer has transitioned to/from a DHT server/client.
- Avoid forgetting our observed external addresses when no new connections have formed in the last 10 minutes. This has been a mild issue since 2016 but was exacerbated by this release as we now push address updates to our peers when our addresses change. Unfortunately, combined, this meant we'd tell our peers to forget our external addresses (but only if we haven't formed a single new connection in the last 10 minutes).