Free Fire OB27 Update could be released on 14th April 2021 on the global servers. The new features to the advanced server can be added a week prior to the update and registration for this beta testing might begin two weeks before releasing the global update.
This date is speculated on the trend of releases and isn’t based on any official announcement. Garena will release the date few days before the update so keep an eye on their social media handles.
Garena releases seasonal updates to add new features to the game and remove any bugs or problems. Most of the time this update is pushed within a period of two months and hence, one can estimate the release date for the Free Fire OB27 update.