Stellar has announced key dates for Protocol 23. On August 14, the testnet will be reset, clearing all accounts, assets, and contracts. Developers are advised to back up and recreate essential data. Stable builds will also be available on that date. A vote on the mainnet upgrade is scheduled for September 3. All Stellar software, including Core, RPC, Horizon, and SDKs, must be upgraded after the reset, regardless of July updates. This reset lies outside the typical protocol upgrade process and is prompted by essential changes to Stellar Core.