With The International 2021 tournament fast approaching Valve has given an update on the future of Dota 2 with some major underlying tech changes planned to come in.
For most players you won't see many issues, since the vast majority of machines are already 64bit and support Vulkan. Valve say they're making changes to " keep the game and the Source 2 engine fresh". For Linux it means Vulkan by default, no 32bit and they're also swapping from XAudio over to SDL Audio. Windows will also be bumped up to DirectX 11.
There's no date set on when other than in the coming months.
As for the upcoming TI 2021, tickets will go on sale on September 22 and will require attendees to by fully vaccinated against COVID-19 and you will need to bring a mask too. There's more outlined in the FAQ. When open, tickets will be available from this link.
The International Dota 2 Championships at National Arena begin with Group Stage October 7 - 10, with the Main Event at National Arena October 12 -17.
Some other in-game changes are coming too with free access as of now to the The International 2021 Compendium, allowing everyone to collect Player Cards and check out the Talent roster, with more of it unlocking as the event gets closer plus there will be some special event items too. On top of that Valve also updated the Spectator HUD, the Camera, some improvements were also made to Graphs as well.