Release v0.28.0-alpha

High-Level Changes

• Enhanced JSON Interoperability: New support for JSON names across the checker, AST, and runtime allows for more seamless data handling when working with JSON-native structures.
• Improved Developer Tooling: Integration is now smoother thanks to new utilities for converting Go errors into cel.Issues and more descriptive, context-aware error messages.
• Greater Environment Flexibility: You can now redeclare variables as constants and export parse limit options, providing finer control over how CEL environments are configured and constrained.
• Native Struct Improvements: Support for mixing CEL and native values within native structs simplifies the handling of complex, hybrid data types.

---

🚀 Features

• Add helper method to check whether a function has a singleton binding in #1266
• Helper utility for converting a Go error into cel.Issues in #1267
• Policy API improvements in #1268
• CEL Test usability requirements in #1269
• Better context-related error messages in #1271
• Sort env.Config values where reasonable in #1273
• Support redeclaring variables as constants in NewEnv in #1275
• Add support for exporting parse limit options in #1277
• Support mixing CEL values and native values in native structs in #1270
• Add checker, AST, and type-provider support for JSON names in #1283
• JSON field names runtime support in #1286
• Optionally include reachable fieldpaths in prompt in #1285

🐞 Bug Fixes

• Fix support for config-based type references in #1265
• Check arg kinds in optional.or and .orValue impl in #1276
• Bazel fixes for import in #1278

🛠️ Maintenance & Internal

• chore: Migrate gsutil usage to gcloud storage in #1274
• Lint fixes for exported function/type comments in #1279
• Lint fixes for import in #1287

---

Full Changelog: v0.27.0...v0.28.0-alpha