The full text from the release notes reads: (Note the date on the second line. Confusing way to announce it but there you go.)
Path of Valor Update
Jun. 6, 2022 –
Added a number of new daily challenges Campaign duration reduced to 30 days Overall volume of rewards per campaign will not change → More loot in less time! (NEW) Event Challenges Event Challenges can be cleared only while their corresponding event is ongoing. They have been added for the following events: Alliance Quests Challenge Events Costume Quest Legends Quest Tower Events Gap between Path of Valor campaigns removed Uncollected rewards from the previous Path of Valor will automatically be saved and awarded to the player when they next access their Path of Valor menu Replaced the bonus avatar in the Valor Pass with more Epic Hero Tokens Updated & improved rewards across the board
REMINDER: All of the changes above will go live AFTER the ongoing Path of Valor concludes.