Summary

PSON is marked deprecated but still supported through fallback/compatibility paths.

Evidence

• lib/puppet/indirector/catalog/json.rb:24 logs that PSON fallback is deprecated and will be removed.
• lib/puppet/feature/pson.rb:5 labels PSON deprecated.
• lib/puppet/network/formats.rb:90 labels PSON deprecated.
• lib/puppet/defaults.rb:1753 exposes allow_pson_serialization compatibility setting.
• lib/puppet/indirector/catalog/compiler.rb:123 keeps PSON acceptance for older agents.

Proposed OpenVox 9 Change

• Remove PSON serialization fallback from catalog JSON indirector paths.
• Remove allow_pson_serialization setting.
• Remove/retire remaining PSON format handlers where no longer needed for supported agent matrix.

Compatibility / Risk

• High compatibility risk if older or non-upgraded agents still rely on PSON.
• Must confirm OpenVox 9 support matrix before final cut.

Implementation Notes

• Gate this issue on minimum supported agent/server versions.
• Prefer staged rollout note: warn in OpenVox 8.x, remove in 9.
• Ensure rich-data and JSON serialization paths cover all required payload types.

Acceptance Criteria

• No runtime fallback from JSON to PSON in catalog serialization/deserialization.
• allow_pson_serialization is removed from settings and docs.
• Supported interoperability tests pass without PSON.

Suggested Tests

• Catalog compile/serialize integration tests across supported agent/server versions.
• Negative tests for unsupported PSON-only inputs.