Update april-2024.md

Author: xboxeer

articles/mysql/flexible-server/release-notes/april-2024.md

@@ -15,6 +15,8 @@ We're pleased to announce the April 2024 maintenance for Azure Database for MySQ
 
 > [!NOTE]
 > We regret to inform our users that after a thorough assessment of our current maintenance processes, we have observed an unusually high failure rate across the board. Consequently, we have made the difficult decision to cancel the minor version upgrade maintenance scheduled for April. The rescheduling of the next minor version upgrade maintenance remains undetermined at this time. We commit to providing at least one month's notice prior to the rescheduled maintenance to ensure all users are adequately prepared.
+> 
+> Please notes that if your maintenance has already been completed, whether it was rescheduled to an earlier date or carried out as initially scheduled, and concluded successfully, your services are not affected by this cancellation. Your maintenance is considered successful and will not be impacted by the current round of cancellations.
 
 ## Engine version changes
 All existing engine version server upgrades to 8.0.36 engine version.