1. New RTT, window size and number of NACKs calculation for streaming
2. Maintain recently connected routers list to avoid false-positive peer test
3. Exclude 'N' routers from high-bandwidth routers for client tunnels
4. Fixed AEAD verification with LibreSSL
5. Limited connectivity mode(through proxy)
6. Show tunnel's routers bandwidth caps in web console
7. Set default i2cp.leaseSetEncType to 0,4 and to 4 for server tunnels
8. "senduseragent" HTTP proxy's param to pass through user's User-Agent
9. Limit stream's inbound speed
10. Fixed jump link crash if address book is disabled
11. "i2p.streaming.profile" tunnel's param to let tunnel select also low-bandwidth routers
12. C++11 support has been dropped, the minimal requirement is C++17 now, C++20 for some compilers
13. Removed dependency from boost::date_time and boost::filesystem
14. Exclude low bandwidth routers for first peer in high-bandwidth client tunnel
15. Increase max number of generated tags to 800 per tagset
16. Handle immediate ack requested flag in SSU2 data packets
17. Resend and ack peer test and relay messages
18. Don't include expired leases to LeaseSet
19. Periodic ack requests in ratchets session
20. Update introducer's iTag if session to introducer was replaced to new one
21. Handle i2cp.inboundlimit and i2cp.outboundlimit params in I2CP
22. Save timestamp from epoch instead local time to router profiles