• Fix bug where a user could be shown two different seed phrases. (Read more)[https://medium.com/metamask/seed-phrase-issue-bounty-awarded-e1986e811021)
• Detect when multiple web3 extensions are active, and provide useful error.
• Adds notice about seed phrase backup.
• Fix bug where dapps would not reload when network was changed.
• Fix memory leak that would lead to browser slow-downs over time.
• Fixed bug where sometimes Dapps in development would be unable to retrieve new events.