The official accounts have made birthday posts for Riko!

Interestingly, the mainland China account used one of Riko's portraits from Global (you can see the two match above), rather than the portraits for her that are actually used in-game in the regions ahead of Global.

English:

"Oh, you remembered my birthday? How thoughtful. And what a perfect gift, just in time for summer. I'll be sure to put it to good use. Although, plum blossoms aren't a common pattern on fans, so it can't have been easy to find. Knowing you put so much effort into it makes this gift truly special. Thank you."

All Global players received a set of orange 5 of Coins (Worry) Revelation cards and a set of 3 of Coins (Labor) Revelation cards.

Chinese:

Dear Leader, June 6th marks Riko Tanemura's birthday. I wonder how she’ll be spending the day? Will she be too busy with UMETANE or school affairs to celebrate? Riko is always diligent and reliable—a personality that makes one naturally want to look out for her. We’ve prepared a special gift for you; why not take it along and surprise her?

Paulownia Mall can now be unlocked on the City Life map

Yukari's buffs for Global:

As previously suggested, Toshiya Sumi's side story will be added in this version

Some quality of life features from the other regions are being ported over to Global, most notably the ability to lower the difficulty for the Shadow Katayama and Shadow Akashi boss fights:

In v.4.2:

In v4.3:

The update schedule shown in the livestream:

Version 4.2 + 4.3 will have more/easier rewards than usual to compensate for how short they are. Various event timing is adjusted- the Trials from the Sea of Souls will only last for one week, for instance

In Version 4.3, 3 of Swords (Sorrow) and 2 of Coins (Change) will be added to Realm of Repression, and the Prince of Swords, officially translated as Perseverance, will also become available