Please find below the areas affected by the reform:
Changes in the alphabet
To regularize the language the letters “K“, “W” and “Y” are now included in the Portuguese alphabet, which increases from twenty-three to twenty-six letters. Despite that “k“, “w” and “y” were not present in Portuguese dictionaries, they had been used to some extent in daily life.
Changes in the rules of accentuation
In a number of cases words lose their accentuation . For example, jóia (gem) lost its acute accent ( ´ ) to become joia, and voos (flights) succeeds vôos which is now written without the circumflex accent (^).
Changes in the usage of hyphens:
The reformed rules for the use of hyphens (hífens) demand, for instance ultra-resistente (ultra-resistant) being written as one word with r-duplication and without hyphen: ultrarresistente.
Change in use of the dieresis
The dieresis (¨) will no longer be used in most cases.Thus, cinqüenta (fifty) has changed to cinquenta.