June 2026—ThinkInAIXYZ/deepchat delivered Bedrock AWS Profile Authentication, enabling secure, profile-based authentication via the AWS credential chain. This feature allows users to authenticate using named profiles (e.g., via ~/.aws/credentials) and supports SSO and other credential providers through fromNodeProviderChain. As part of the rollout, verification logic was updated to use fetch-models instead of a single model ID, reducing coupling and enabling reliable model listing with profile-based creds. Other improvements include standardizing environment variables (AWS_REGION, AWS_ACCESS_KEY_ID, AWS_SECRET_ACCESS_KEY) to align with providerFactory.ts, and adding UI validation for authMode plus i18n coverage for profile keys. These changes improve security, flexibility, and developer experience, enabling easier onboarding and safer credential management for Bedrock interactions.