Version 1.54 of StarFriend was explicitly updated to work with HotS 2.09. The crack/dll injection method hooked into SC2’s memory addresses that changed with each patch. 2.09 was a minor update, so 1.54 likely came out within days of the official patch.
This era of the game was highly compatible with custom maps and "cracked" arcade content that didn't require official Blizzard authentication. Version 1
To use this configuration, you must strictly match the game version with the emulator version. Game Version: You must have StarCraft II: Heart of the Swarm updated specifically to Emulator Installation: Download and extract the StarFriend 1.54 Version 1