There are quite a few new features, changes and fixes in the August update, available now. Below is a full list, starting with the biggest change, the ability to simulate a full month at a time (or even a full season). The AI will handle any lineup changes necessitated by injuries to your players during this automatic simulated period.
Added ability to sim til end of month or end of any upcoming month or end of season
Fixed sorting on most screens
Fixed bug where teams that were at the bottom of the standings were trying to make a championship run and teams at the top were rebuilding
Fixed variable column heights on team lists.
Fixed signings not showing on Moves screen
Numerous changes to player data
Modified how players get re-signed; signings happen over the course of the year instead of all up front
Players in trade situations are evaluated based now on their potential value, not their actual value. (for players under 'peak age', currently 28)
Signing / offer sheet page now tells you your maximum value for signing and enforces it
Added more protection against allowing rosters to go over cap
Contract extensions now shown under 'Signings' on Moves screen
Changed Lineups and Rosters button to Lineup and Roster
Added ellipsis to 'Sign' menu item on Free agents screen
Fixed 'Draft Lottery' event name on UpcomingGamesPanel
Strengthened draft pool
Shortened delay between draft picks
Fixed a rare crash during game play when a goalie changes while a game is being simulated.
Changed trade algorithm - if a UFA/RFA player gets traded during a season he will re-sign with the destination team
Improved younger players' power (under 20yo)
Slight improvement to 35-40yo power
Modified power of all six player types (journeyman, minor leaguer, core, star, franchise, generational)
Fixed bug when logging/listing re-signings so that the re-signing won't be listed twice if a player is signed and immediately extended
Increased value of first round picks
Reduced top age of available free agents from 29 to 27
Players now retire after age 30 if they are waived or released and not picked up elsewhere
Fixed bug in retirement algorithm so player leaves team after retiring.
Reduced likeliness of generational players being involved in trades
Changed algorithm for how teams decide what strategy to take