Niantic has announced that from July 1st, 2019 until September 1st, 2019, Latias, Latios, Kyogre and Groudon will be available as Research Breakthrough encounters. Spinda with a new pattern will be available in Field Research and players can also encounter Shiny Spinda.

Research Breakthrough, new Spinda form, and EX Raid updates!

Trainers, We’re excited to share a few changes to Field Research rewards and EX Raids in the coming weeks!

Field Research Updates

• From July 1, 2019, at 1 p.m. PDT (GMT −7) to September 1, 2019, at 1 p.m. PDT (GMT −7), Latias, Latios, Kyogre, and Groudon will be available as Research Breakthrough encounters.
• Spinda sporting a new pattern will be available in Field Research, and if you’re lucky, you might encounter a Shiny one!

EX Raid Updates

• Starting on June 23, 2019, at 8 a.m. PDT, Trainers who receive EX Raid Passes will encounter Speed Forme Deoxys in EX Raids!

Are you new to EX Raids? You can become eligible to receive an EX Raid Pass when you win a Raid Battle at a qualifying Gym! To see whether a Gym can host EX Raids, take a look at the Gym’s details. If you triumph in a qualifying Raid Battle and receive an invitation to an EX Raid, you can check your EX Raid Pass for the date and time when you’ll be able to challenge Speed Forme Deoxys.

Let’s GO!

Source: https://pokemongolive.com/en/post/junejulyaugustupdate2019/