Introducing Statsig Server Core v0.1.0

Statsig Server Core is a performance-enhanced rewrite of various server SDKs, incorporating a shared Rust library that significantly improves evaluation speeds by up to five times. This update not only accelerates server-side metrics evaluation and processing but also introduces new features such as Parameter Stores, SDK Observability Interfaces, and streaming flag/experiment changes via the Statsig Forward Proxy. While there are no immediate plans to deprecate legacy SDKs, users are encouraged to transition to Server Core to benefit from these advancements. This shift allows Statsig to prioritize the development of meaningful features over SDK maintenance, aligning with their strategy to reduce technical debt and focus on long-term customer needs. For further inquiries or assistance with migration, Statsig offers support through their Slack channel.