Version 0.9.0 of llm_cost_tracker, a Rails gem for tracking LLM API costs, slims the default install to three mandatory tables (calls, call_line_items, call_tags) and moves durable ingestion, rollup-cached budget reads, and provider invoice reconciliation behind opt-in config flags. Key additions include expanded OpenAI SDK capture (embeddings, audio, images, moderation), correct pricing for gpt-image-* models with image-token billing, RubyLLM paint/moderate support, Anthropic Priority Tier and data residency fixes, and a security-hardened dashboard with CSRF protection, CSP headers, and secret redaction in tags. Dozens of bug fixes address reconciliation accuracy, streaming event loss, currency handling, and index performance. Existing installs require migrations.
