Highlights

Normalized cache performance improvements:

Continuing from version 2.2.2, this version adds even more cache performance improvements. For SqlNormalizedCache, reads are now wrapped in a transaction, which will make things faster, especially on large objects (#2422).
You also have the option to opt-in asynchonous cache writes (#2416):

apolloClient.normalizedCache(cacheFactory, cacheKeyResolver, true)

Passing true for writeToCacheAsynchronously will make your UI display faster since it will get the network response without waiting for the cache write to happen.

SDL schema support:

Apollo Android now supports SDL (Schema Definition Language) for schemas (#2417). SDL is more concise and easier to read than the introspection json. To use it, place your SDL file in src/main/graphql/$some/$subdirectory/schema.sdl

✨ New

• [Codegen] Enable SDL schema Apollo Plugin support (#2417)
• [Performance] Batch normalized sql cache reads (#2422)
• [Performance] Run ApolloCacheInterceptor store write on dispatcher thread (#2416)
• [Runtime] add ApolloClient.autoPersistedOperationsInterceptorFactory (#2420)
• [apollo-normalized-cache] multiplatform support (#2457)

👷‍♂️ Fixes

• [Publication] Fix packaging of apollo-normalized-cache (#2465)
• [Compiler] Fix issue with using inline fragment inside another inline fragment (#2462)
• [LruNormalizedCache] Fix a most likely Java -> Kotlin conversion error in the weighteer implementation (#2428)
• [Kotlin Runtime] calling cancel() on the connection closes it too early, keep the (#2426)
• [Build] unbreak the generation of com.apollo.compiler.VERSION (#2424)
• [Subscriptions] Allow calls to WebSocketSubscriptionTransport#send when not connected. (#2419)
• [Compiler] Support empty graphql files (#2418)
• [Coroutines-support] expose runtime/coroutines dependencies (#2415)

⚙️ Internal

• [Runtime] deprecate the "builder" methods on ApolloCall and add them on the Builder instead (#2434)
• [Build scripts] make the project compile with jdk13 (#2449)
• [Tooling] 🛠️ Add tasks to check if the API is backward compatible (#2408)
• [Compiler] Refactor package structure for GraphQL and SDL parsers (#2411)

❤️ External contributors

Many thanks to @BenSchwab, @jeffnyauke, @DSteve595, @Shevatro and @baconz for their awesome contributions!