Update to kotlin 2.0.21 while keeping language compatibility #2493

tonidero · 2025-07-08T10:28:36Z

Description

This updates Kotlin in our project to 2.0.21 while keeping the language level and api level in our libraries to 1.8, to avoid causing breaking changes

vegaro · 2025-07-08T10:52:02Z

gradle/libs.versions.toml

@@ -31,7 +31,7 @@ fragment = "1.6.1"
 hamcrest = "1.3"
 recyclerview = "1.2.1"
 roboelectric = "4.11.1"
-kotlin = "1.8.22"
+kotlin = "2.0.21"
 # Can't update until we use more recent kotlin. 1.6.0 uses Kotlin 1.9.0
 kotlinxSerializationJSON = "1.5.1"


we'll be finally able to update this 💃

library.gradle

codecov · 2025-07-08T11:00:49Z

Codecov Report

Attention: Patch coverage is 80.00000% with 2 lines in your changes missing coverage. Please review.

Project coverage is 78.32%. Comparing base (7414e17) to head (8e6c6ee).
Report is 1 commits behind head on main.

Files with missing lines	Patch %	Lines
...c/main/kotlin/com/revenuecat/purchases/Offering.kt	80.00%	2 Missing ⚠️

Additional details and impacted files

@@            Coverage Diff             @@
##             main    #2493      +/-   ##
==========================================
- Coverage   78.33%   78.32%   -0.01%     
==========================================
  Files         286      286              
  Lines       10432    10507      +75     
  Branches     1500     1485      -15     
==========================================
+ Hits         8172     8230      +58     
- Misses       1614     1631      +17     
  Partials      646      646

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This reverts commit caadbc5.

ui/debugview/src/main/kotlin/com/revenuecat/purchases/ui/debugview/models/TestModels.kt

…t PaywallComponents from having to OptIn

JayShortway

Let's go! 🚀 Minor things only.

gradle/libs.versions.toml

purchases/src/main/kotlin/com/revenuecat/purchases/Offering.kt

JayShortway · 2025-07-09T15:00:25Z

ui/revenuecatui/api.txt

@@ -66,7 +66,7 @@ package com.revenuecat.purchases.ui.revenuecatui {
    method public default void onRestoreStarted();
  }

-  public final class PaywallOptions {
+  @androidx.compose.runtime.Immutable public final class PaywallOptions {


I got these too. How's that possible? 🤔

I was indeed confused about this... I would have expected it to be annotated from before this PR, so no idea why it was added with this PR...

Maybe we're not failing tests on changes on the UI library, only on the main SDK?

I'm thinking along those lines, but still not sure what's going on. I've tried this on main:

./gradlew :ui:revenuecatui:metalavaCheckCompatibilityDefaultsRelease

☝️ checking doesn't fail

👇 generating shows new changes

./gradlew :ui:revenuecatui:metalavaGenerateSignatureDefaultsRelease

and then checking again (with the newly generated API dump), doesn't fail either..

Just tried removing an entire class from the api.txt file and it doesn't fail either... So it doesn't seem to be working for some reason :/

Hmm, that's truly interesting 🤔 Maybe its checking function doesn't detect annotations?

Maybe we should not use the checking task, and just generate new API dump files and using git to verify there's no diff? (All of this goes beyond the scope of this PR of course.)

Yeah, I don't think it's due to the automations, since it doesn't seem to fail either after I modify the api file and remove an entire class... And yeah, generating new API files and checking git should also work, though a bit more cumbersome 😅

ajpallares

Very nice! 🚀

### Description This updates the CustomEntitlementComputation sample app to kotlin 1.8.22. This is needed after dropping support for 1.7 in #2493

@JayShortway

## RevenueCat SDK This release updates the SDK to use Google Play Billing Library 8. This version of the Billing Library removed APIs to query for expired subscriptions and consumed one-time products, aside from other improvements. You can check the full list of changes here: https://developer.android.com/google/play/billing/release-notes#8-0-0 Additionally, we've also updated Kotlin to 2.0.21 and our new minimum version is Kotlin 1.8.0+. If you were using an older version of Kotlin, you will need to update it. Regarding API changes, we've also removed data classes from our public APIs. This means that for classes that were previously data classes, the `copy` function and `componentN` functions (destructuring declarations) have been removed. `equals` and `hashCode` functions still work as before. ### Play Billing Library 8: No expired subscriptions or consumed one-time products **Note:** the following is only relevant if you recently integrated RevenueCat, and do not (yet) have all your transactions imported. Play Billing Library 8 removed functionality to query expired subscriptions or consumed one-time products. This means that, for users migrating from a non-RevenueCat implementation of the Play Billing Library, the SDK will not be able to send purchase information from these purchases. We can still ingest historical data from these purchases through a backend historical import. See [docs](https://www.revenuecat.com/docs/migrating-to-revenuecat/migrating-existing-subscriptions). This doesn't affect developers that have all transactions in RevenueCat, which is true for the vast majority. ### Bumped minimum Kotlin version RevenueCat SDK v9 bumps Kotlin to 2.0.21, with a minimum Kotlin version of 1.8.0. ### Using the SDK with your own IAP code (previously Observer Mode) Using the SDK with your own IAP code is still supported in v9. Other than updating the SDK version, there are no changes required. Just make sure the version of the Play Billing Library is also version 8.0.0+. ### 💥 Breaking Changes * Removes data classes from public API (#2498) via JayShortway (@JayShortway) * Marks `PaywallData` and `PaywallColor` as `InternalRevenueCatAPI`. (#2507) via JayShortway (@JayShortway) * BC8 migration (#2506) via Toni Rico (@tonidero) * Update to kotlin 2.0.21 while keeping language compatibility (#2493) via Toni Rico (@tonidero) ### 🔄 Other Changes * Update CustomEntitlementComputation sample app kotlin version (#2510) via Toni Rico (@tonidero) * Fix `Switch` component previews (#2509) via Toni Rico (@tonidero) * Add V9 migration guide (#2508) via Toni Rico (@tonidero) * [AUTOMATIC][Paywalls V2] Updates paywall-preview-resources submodule (#2499) via RevenueCat Git Bot (@RCGitBot) --------- Co-authored-by: JayShortway <29483617+JayShortway@users.noreply.github.com>

PHC version of RevenueCat/purchases-android#2493 This updates Kotlin to 2.0.21 while keeping compatibility with versions up to 1.8.

This updates the CustomEntitlementComputation sample app to kotlin 1.8.22. This is needed after dropping support for 1.7 in #2493

Update to kotlin 2.0.21 while keeping language compatibility

35ef1e8

tonidero added the pr:other label Jul 8, 2025

vegaro reviewed Jul 8, 2025

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JayShortway reviewed Jul 8, 2025

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library.gradle Outdated Show resolved Hide resolved

tonidero added 2 commits July 8, 2025 13:02

Update kotlin serialization

caadbc5

Move min kotlin version to toml file

9c7b84c

tonidero mentioned this pull request Jul 8, 2025

Update Kotlin 2.0.21 while keeping language compatibility RevenueCat/purchases-hybrid-common#1192

Merged

Revert "Update kotlin serialization"

e61747f

This reverts commit caadbc5.

tonidero added the pr:breaking Changes that are breaking label Jul 8, 2025

tonidero marked this pull request as ready for review July 9, 2025 08:56

Merge branch 'main' into update-kotlin-2.0.21

3ea2530

tonidero requested review from JayShortway, vegaro and a team July 9, 2025 08:56

ajpallares reviewed Jul 9, 2025

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ui/debugview/src/main/kotlin/com/revenuecat/purchases/ui/debugview/models/TestModels.kt Outdated Show resolved Hide resolved

tonidero added 2 commits July 9, 2025 11:30

Add secondary constructor to avoid devs constructing Offerings withou…

d8d8be4

…t PaywallComponents from having to OptIn

Update metalava

ee05fcb

JayShortway approved these changes Jul 9, 2025

View reviewed changes

tonidero and others added 2 commits July 9, 2025 17:04

Change to kotlinLanguage

8e6c6ee

Merge branch 'main' into update-kotlin-2.0.21

4274931

tonidero enabled auto-merge July 10, 2025 11:15

ajpallares approved these changes Jul 10, 2025

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tonidero added this pull request to the merge queue Jul 10, 2025

Merged via the queue into main with commit 298c8b5 Jul 10, 2025
12 checks passed

tonidero deleted the update-kotlin-2.0.21 branch July 10, 2025 12:24

This was referenced Jul 10, 2025

Bump AGP to 8.10.1 and Gradle to 8.14.2 #2440

Merged

Update CustomEntitlementComputation sample app kotlin version #2510

Merged

tonidero mentioned this pull request Jul 10, 2025

Release/9.0.0 #2511

Merged

tonidero added a commit that referenced this pull request Aug 25, 2025

Update CustomEntitlementComputation sample app kotlin version (#2510)

601d7d8

This updates the CustomEntitlementComputation sample app to kotlin 1.8.22. This is needed after dropping support for 1.7 in #2493

Update to kotlin 2.0.21 while keeping language compatibility #2493

Update to kotlin 2.0.21 while keeping language compatibility #2493

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tonidero commented Jul 8, 2025

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vegaro Jul 8, 2025 •

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