feat: sync with openiap v1.3.17

[hyochan]

Summary

• Sync with OpenIAP v1.3.17
• Add InstallmentPlanDetailsAndroid class (Billing Library 7.0+)
• Add PendingPurchaseUpdateAndroid class (Billing Library 5.0+)
• Add purchase_option_id_android field to DiscountOffer (Billing Library 7.0+)
• Update llms.txt with new type documentation
• Add release blog post

Related

• OpenIAP PR: feat(gql,google): add BillingClient 5.0+ and 7.0+ fields hyodotdev/openiap#78
• OpenIAP Release Notes: https://www.openiap.dev/docs/updates/notes#gql-1-3-17-google-1-3-28

OpenIAP Versions

Package	Version
openiap-gql	1.3.17
openiap-google	1.3.28
openiap-apple	1.3.14

🤖 Generated with Claude Code

Summary by CodeRabbit

• New Features

  • Added support for Google Play Billing Library 7.0+ features including installment payment plans and purchase option identification
  • Enhanced support for pending purchase updates (Billing Library 5.0+)
  • Improved data structure initialization across Android and iOS in-app purchases

• Documentation

  • Added v1.2.4 release notes documenting new billing library feature support

• Chores

  • Updated dependency versions for improved compatibility

[coderabbitai]

📝 Walkthrough

Walkthrough

This PR synchronizes the OpenIAP GDScript addon with OpenIAP v1.3.17/v1.3.28, adding support for Google Play Billing Library 5.0+ and 7.0+ features. Key changes include adding default values to existing IAP type fields, introducing new fields like purchase_option_id_android and installment-related structures, and implementing new types with updated serialization logic.

Changes

Cohort / File(s)	Summary
Core Types & Serialization addons/godot-iap/types.gd	Expanded default initialization for public fields across multiple IAP type classes (strings to "", numbers to 0/0.0, booleans to false, arrays to []). Introduced new fields: purchase_option_id_android, installment-related structures (InstallmentPlanDetailsAndroid, PendingPurchaseUpdateAndroid), and platform-specific metadata fields. Updated to_dict/from_dict methods to handle newly introduced fields and nested structures.
Documentation & Versioning docs/blog/2026-02-11-1.2.4.md, docs/static/llms.txt, openiap-versions.json	Added v1.2.4 release notes documenting new types and fields for Google Play Billing Library support. Updated LLM documentation with new data structures. Bumped OpenIAP dependency versions (gql: 1.3.16 → 1.3.17, google: 1.3.27 → 1.3.28).

Possibly related PRs

• feat: add type-safe GDScript API with generated OpenIAP types #3 — Both PRs directly modify the generated OpenIAP GDScript types file (types.gd), including serialization logic and type field definitions.

Poem

🐰 The billing garden grows so tall,
With installments and options for all,
Defaults now clear, no mysteries here,
Google Play features make it crystal clear! ✨

🎯 3 (Moderate) | ⏱️ ~20 minutes

🚥 Pre-merge checks | ✅ 3

✅ Passed checks (3 passed)

Check name	Status	Explanation
Description Check	✅ Passed	Check skipped - CodeRabbit’s high-level summary is enabled.
Title check	✅ Passed	The PR title 'feat: sync with openiap v1.3.17' directly and accurately summarizes the main change—synchronizing the codebase with OpenIAP v1.3.17.
Docstring Coverage	✅ Passed	No functions found in the changed files to evaluate docstring coverage. Skipping docstring coverage check.

_{✏️ Tip: You can configure your own custom pre-merge checks in the settings.}

✨ Finishing touches

🧪 Generate unit tests (beta)

• Create PR with unit tests
• Post copyable unit tests in a comment
• Commit unit tests in branch feat/openiap-sync-1.3.17

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[gemini-code-assist]

Summary of Changes

Hello @hyochan, I'm Gemini Code Assist¹! I'm currently reviewing this pull request and will post my feedback shortly. In the meantime, here's a summary to help you and other reviewers quickly get up to speed!

This pull request updates the Godot IAP plugin to align with OpenIAP v1.3.17, primarily focusing on enhancing Android billing capabilities. It introduces new data structures to support features from Google Play Billing Library 5.0+ and 7.0+, such as installment plans and pending purchase updates. These additions ensure the plugin remains compatible with the latest Android billing system advancements, providing more detailed information for in-app purchases and subscriptions.

Highlights

• OpenIAP Sync: The project has been synchronized with OpenIAP v1.3.17, incorporating the latest features and updates from the OpenIAP ecosystem.
• New Android Billing Classes: Two new classes, InstallmentPlanDetailsAndroid (for Billing Library 7.0+) and PendingPurchaseUpdateAndroid (for Billing Library 5.0+), have been added to support advanced Android billing functionalities.
• Expanded DiscountOffer Functionality: A new field, purchase_option_id_android, has been added to the DiscountOffer and ProductAndroidOneTimePurchaseOfferDetail classes, enhancing support for Google Play Billing Library 7.0+.
• Documentation Updates: The llms.txt documentation has been updated to reflect the newly added types and fields, ensuring accurate and up-to-date information for developers.
• Release Blog Post: A new blog post has been added to document the 1.2.4 release, outlining the changes and new features introduced in this update.

🧠 New Feature in Public Preview: You can now enable Memory to help Gemini Code Assist learn from your team's feedback. This makes future code reviews more consistent and personalized to your project's style. Click here to enable Memory in your admin console.

Changelog

• addons/godot-iap/types.gd
  • Added purchase_option_id_android property to DiscountOffer and ProductAndroidOneTimePurchaseOfferDetail classes.
  • Introduced InstallmentPlanDetailsAndroid class for subscription installment plan details.
  • Introduced PendingPurchaseUpdateAndroid class for pending subscription upgrade/downgrade details.
  • Integrated InstallmentPlanDetailsAndroid into ProductSubscriptionAndroidOfferDetails and SubscriptionOffer.
  • Integrated PendingPurchaseUpdateAndroid into PurchaseAndroid.
• docs/blog/2026-02-11-1.2.4.md
  • Added a new release blog post for version 1.2.4, detailing the OpenIAP 1.3.17 sync and new Android billing types.
• docs/static/llms.txt
  • Updated type documentation to include purchase_option_id_android for DiscountOffer.
  • Added documentation for InstallmentPlanDetailsAndroid and PendingPurchaseUpdateAndroid classes.
• openiap-versions.json
  • Updated google package version from 1.3.27 to 1.3.28.
  • Updated gql package version from 1.3.16 to 1.3.17.

Activity

• The pull request was generated automatically using Claude Code.
• It synchronizes the project with OpenIAP v1.3.17.
• Related OpenIAP PR and release notes links are provided for context.

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[gemini-code-assist]

Code Review

This pull request syncs with OpenIAP v1.3.17, introducing new classes and fields to support recent features from Google Play Billing Library 5.0+ and 7.0+. The changes primarily affect the auto-generated types.gd file and include corresponding updates to documentation. The implementation is consistent with the existing codebase. I've provided a few suggestions to initialize member variables in the new data classes to improve robustness and prevent potential null-related issues.