Valve's Dota 2 update expands map and introduces massive changes in patch 7.33.

TL;DR
Dota 2's latest update, New Frontiers, has expanded the game's map by 40%, added new locations, mini-bosses, neutral units, items, matchmaking changes, UI tweaks, and hero rebalances. Valve promises that the core objective of the game remains the same, and everything needed to win is still in the center of the map. The update is expected to have a significant impact on the game's meta and is likely to be well-received by players.
- Dota 2's 'meta-defining' New Frontiers update makes the map 40 percent bigger The Verge
- Valve drops Dota 2 patch 7.33 — New Frontiers — on time, and it's a big one ONE Esports
- Dota 2 Patch 7.33 Notes: Full List of Changes App Trigger
- ‘Dota 2’ Patch Notes Due To Launch Today After Valve Teases Massive Changes Forbes
- Valve Officially Teases Upcoming Patch With a List of Vague Changes AFK Gaming
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