3.7.0.0-Mandatory

Mandatory bug fixes are tied to v9 blocks which will start on block 1144000.

Added

• Provide Difficulty of best kernel found, #766 (@tomasbrod).
• Add Travis support for OSX, #665 (@Acey1).
• Add better command for sending alerts, #731 (@tomasbrod).
• Add RPC for sending raw contracts, #683 (@tomasbrod).
• Add portable diagnostic page, #631 (@fooforever).

Fixed

• Fixed minor spelling mistakes, #742 (@denravonska).
• Several tally improvements. There should now be less forking and the wallet
  should use ~50MB less memory, #668, #756 (@denravonska, @tomasbrod)
• Data scraper can no longer run concurrently, #742 (@denravonska).
• Improve superblock validations, #730 (@tomasbrod).
• Fix potential deadlock, #708 (@denravonska).
• Prevent duplicate superblocks, #534 (@tomasbrod).
• Fix issue with application cache clears, #577 (@tomasbrod).
• Fix bug which caused rewards to be lost when staking the newbie block.
  Missing rewards will be reimbursed, #552 (@Foggyx420).
• Fix minor UI typos, #661 (@Erkan-Yilmaz).
• Fix stake modifier, #686 (@tomasbrod).
• Improve boost-1.66.0 compatibility, #800 (@denravonska).
• Fix crash in diagnostics dialog, #794 (@Foggyx420).

Changed

• Changed versioning extraction from git. Test builds can no longer be used to
  stake in production unless explicitly enabled, #729 (@tomasbrod).
• Don't update network quorum while syncing, #728 (@Foggyx420).
• Snapshot URL now uses https, #727 (@Foggyx420).
• Code cleanup (@Foggyx420, @denravonska).
• Use more efficient data structure for blocks, #679 (@denravonska).
• Improve transaction description dialog, #676 (@Foggyx420).
• Improve beacon handling, #604, #645, #649, #684, #701 (@Foggyx420, @tomasbrod).
• Optimize double<->string conversions, #692 (@denravonska).
• Optimize application cache access, #506 (@denravonska).
• Improve thread handling, #656 (@skcin).
• Replace boost::shared_ptr with std::shared_ptr.
• Optimize string split function, #672 (@denravonska).
• Improve sync speeds, #650 (@denravonska).
• The RPC command restartclient is now called restart.
• Fix voting sorting issues, #610 (@MagixInTheAir).
• Improve wallet backup, #660 (@Foggyx420).
• Update seed nodes, #783 (@barton2526).
• Auto upgrades are now opt-in via the "autoupgrade" flag, #796 (@denravonska).
• Clean up seed nodes, #783 (@barton2526).

Removed

• Remove CSV exporter which used unreliable data, #759 (@denravonska).
• Remove block download menu options on non-Windows, #727 (@Foggyx420).
• Removed RPC commands (@Foggyx420, @denravonska):
  • debugexplainmagnitude
  • executecode
  • getsubsidy
  • list newbieage
  • list staking
  • leder
  • reboot
• Remove checkpoint relaying to improve sync speeds, #678 (@denravonska).
• Remove IRC peer discovery.