Release v0.10.4

A cherry-pick was missed between the v0.10.2 and v0.10.3 releases. This release addresses the missing change.

Fixes

• Fix nested CallExpr cost estimation [#571]

Full Changelog: v0.10.3...v0.10.4

Release v0.10.3

Fixes

• Thread-safety fix for unprotected mutation of decorator set [#621]

Full Changelog: v0.10.2...v0.10.3

Release v0.13.0

This release introduces new extension libraries for working with protobuf message extensions, simple mathematical operations for least and greatest, as well as a significant new feature for working with optional values as defined in https://github.com/google/cel-spec/wiki/proposal-246.

In addition to these features, several fixes have been made to address bugs or security hardening issues.

Fixes

• Fix invalid get function assigned to MutableList [#575]
• Example of a stateful binding using environment extension [#577]
• ExprHelper.Copy to assist with unique id tagging of macro expanded ASTs [#579]
• Enable comparison of wrapped errors via errors.Is [#580]
• Refinement on recursion depth checking [#585]
• Add the missing global matches() declaration [#589]
• Parser refactor to improve syntactic correctness [#588]
• Harden field visiting parser paths [#611]
• Support assignment of a wrapper field to null [#604]

Features

• Library for creating and working with optional values. [#581]
  • Support for conditional attribute qualification [#595]
  • Optional field selection runtime [#599]
  • Parse and type-check support for optional field selection [#601]
  • Support for map and message literal construction [#603]
• Proto extension library [#592]
• Math extension library for supporting least and greatest macros [#608]
• Extension to support Golang structs as CEL types [#612]
• Allow macros to return an empty Expr to indicate a non-expansion [#605]
• Add support for configuring parse recursion limits in EnvOptions. [#594]
• Stringer functions for list and map values [#578]

New Contributors

• @awillis made their first contribution in #580

Full Changelog: v0.12.5...v0.13.0

Release v0.12.5

Fixes

• Codelab module and codelab refactors [#567]
• Use proto safe traversal accessors [#570]
• Avoid exception for immutable list from folded expression [#574]
• Fix nested CallExpr cost estimation [#571] (backported to v0.10.2, v0.11.5)

New Contributors

• @livebranch
• @DangerOnTheRanger

Full Changelog: v0.12.4...v0.12.5

Release v0.12.4

Fixes

• Ensure overloads are searched in the order they are declared [#566]
• Augment dynamic dispatch to consider list and map element type information during overload resolution.

Full Changelog: v0.12.3...v0.12.4

Release v0.12.3

Fixes

• Add the duration declarations in the new style when UTC is enabled [#565]

Full Changelog: v0.12.2...v0.12.3

Release v0.12.2

Features

• Support formatting options when unparsing ASTs to strings [#559]

Fixes

• Add an applied features map for one-time only features [#564]

New Contributors

• @l46kok made their first contribution in #559

Full Changelog: v0.12.1...v0.12.2

Release v0.12.1

Fixes

• Fix the signature overlap check for parameterized types by [#563]

Full Changelog: v0.12.0...v0.12.1

Release v0.12.0

Features

• Introduce a REPL for testing basic CEL expressions. [#539]
• Add basic readme for REPL [#545]
• Add REPL support for loading protobuf descriptors [#555]
• Dispatcher refactor to improve function declaration, definition, and extension [#556]
• Export the built-in parser macros individually [#429]

Fixes

Note, the cel-spec indicates that time operations should be UTC by default. To opt-in to this behavior see #560 for more details. In v0.13.+ this feature is expected to be enabled by default.

• Provide an option to ensure time operations are in UTC by default [#560]
• Ensure the recursion depth is being checked during parser AST visit [#542]
• Add missing type specializations into the type-checker. [#543]
• Support for proto2 group fields [#547]
• Ensure that type substitutions consistently perform the 'occurs' check.[#550]
• Ensure that the CheckedType is populated for group fields [#552]

New Contributors

• @jnthntatum made their first contribution in #539

Full Changelog: v0.11.4...v0.12.0

Release v0.11.4

Fixes

• Omit large error strings [#537]
• Fix the occurs check to prevent tagging types as substitutions for themselves [#540]

Full Changelog: v0.11.3...v0.11.4