Update changelog

Author: EmelyanenkoK

Changelog.md

@@ -1,3 +1,7 @@
+## 2025.07 Accelerator Update
+
+Separation of validation and collation processes that allows to host them on independent machines and achieve full horizontal scaling. [More details in documentation](https://docs.ton.org/v3/documentation/infra/nodes/validation/collators)
+
 ## 2025.06 Update
 
 1. ADNL and candidate broadcast optimization

recent_changelog.md

@@ -1,11 +1,3 @@
-## 2025.06 Update
-
-1. ADNL and candidate broadcast optimization
-2. [TVM version v11](./doc/GlobalVersions.md): new opcodes, and `c7` entry to improve developer experience. It also activates storage stats and `ihr_fee`  nullification.
-3. Fixed `start_lt` of tick transactions [see details on 01.06.2025 incident](https://telegra.ph/Report-on-June-1-2025-Operation-Incident-06-02).
-4. Introduction of persistent state sharding, as well as making serialization of large BOCs more deterministic
-5. Emulator improvements: in get methods, set config from provided `c7`; allow retrieval of logs from emulator runs for get methods
-6. Optimized package import for archive nodes
-
-Besides the work of the core team, this update is based on the efforts of the RSquad team (deterministic large BOC serialization); AArayz, wy666444, Robinlzw, Lucian-code233 from TonBit (early discovery of the TVM 11 bug); @Skydev0h (uninitialized `BLOCKLT` in get methods); and @yma-het from TONWhales (emulator improvements).
+## 2025.07 Accelerator Update
 
+Separation of validation and collation processes that allows to host them on independent machines and achieve full horizontal scaling. [More details in documentation](https://docs.ton.org/v3/documentation/infra/nodes/validation/collators)