HashiCorp Consul 2.0.4: Distributed Service Mesh & Discovery

HashiCorp Consul is a distributed, highly available, and data center-aware solution designed to connect and configure applications across dynamic, distributed infrastructure. It serves as a critical tool for DevOps engineers and system administrators who need to manage service discovery, health checking, and secure communication in complex environments. By providing a unified platform for these tasks, Consul helps ensure that applications remain reliable and accessible even as underlying infrastructure changes. It is particularly useful for organizations deploying multi-datacenter architectures that require robust connectivity and configuration management.

Key features:

• Multi-Datacenter support allows Consul to be aware of datacenters and support any number of regions without complex configuration.
• Service Mesh enables secure service-to-service communication with automatic TLS encryption and identity-based authorization.
• API Gateway manages access to services within the Consul Service Mesh, allowing users to define traffic and authorization policies.
• Service Discovery makes it simple for services to register themselves and discover other services via DNS or HTTP interfaces.
• Health Checking alerts operators about cluster issues and prevents routing traffic to unhealthy hosts.
• Dynamic App Configuration provides an HTTP API to store indexed objects for configuration parameters and application metadata.
• Sidecar proxies enable Transparent Proxy for inbound and outbound TLS connections in service mesh configurations.

What's new in version 2.0.4:

• Breaking change: Tokens holding service:write but not mesh:write now receive permission-denied errors when attaching specific Envoy extensions or escape-hatch overrides.
• Security: Upgraded Go version to 1.26.7 to address security vulnerabilities.
• Enterprise FIPS release artifacts have been renamed, changing version metadata from +ent.fips1402 to +ent.fips1403.