V1.10.0

What's Changed

• Redirect to get.gov after logout by @neilmb in #1583
• Ticket #1128: Reduce email bouncebacks by @zandercymatics in #1557
• Issue #1359 - Show saved security contact email if registry is down by @dave-kennedy-ecs in #1564
• Issue #1485 - Intro acknowledgement page added to domain request form for new requests only by @dave-kennedy-ecs in #1566
• Use submission_date in application emails by @neilmb in #1589
• Text updates to success and error messages by @michelle-rago in #1593
• Update scenario 2 in migrations doc by @rachidatecs in #1580
• 1434: Sandbox creation readme by @abroddrick in #1596
• updated release cadence document by @abroddrick in #1597
• HOTFIX- staging changing host names to not be unique by @abroddrick in #1610

Full Changelog: v1.8.0...v1.10.0