[dependabot]

Bumps the kotlinx-ktor group in /compose with 2 updates: org.jetbrains.kotlinx:kotlinx-datetime and org.jetbrains.kotlinx:kotlinx-serialization-json.

Updates org.jetbrains.kotlinx:kotlinx-datetime from 0.7.1 to 0.8.0

Release notes

Sourced from org.jetbrains.kotlinx:kotlinx-datetime's releases.

v0.8.0

Breaking changes:

• Deprecate TimeZone serialization (#576).

Additions:

• Add orNull functions for non-throwing construction of datetime entities (#68).
• Add parseOrNull extension functions for non-throwing attempts at parsing (#508).
• Introduce LocalIsoWeekDate for representing ISO week dates (#603).
• Introduce functions for finding the next or previous date with the given day-of-week (#129).

Tweaks and fixes:

• Fix bugs in Instant.until and Instant.periodUntil (#534).
• Always output seconds in the DateTimeComponents.Formats.RFC_1123 format (#608).
• On Kotlin/Native for Windows, whenever DST transitions are turned off by the user, the current system time zone is now fixed-offset (#575).

Changelog relative to version 0.8.0-rc02

No changes, only the version is increased.

v0.8.0-rc02

Equivalent to rc01, but published without Instant and Clock. A separate compatibility artifact contains them for binary compatibility. Please see https://github.com/Kotlin/kotlinx-datetime/#deprecation-of-instant for details.

v0.8.0-rc01

Breaking changes:

• Deprecate TimeZone serialization (#576).

Additions:

• Add orNull functions for non-throwing construction of datetime entities (#68).
• Add parseOrNull extension functions for non-throwing attempts at parsing (#508).
• Introduce LocalIsoWeekDate for representing ISO week dates (#603).
• Introduce functions for finding the next or previous date with the given day-of-week (#129).

Tweaks and fixes:

• Fix bugs in Instant.until and Instant.periodUntil (#534).
• Always output seconds in the DateTimeComponents.Formats.RFC_1123 format (#608).
• On Kotlin/Native for Windows, whenever DST transitions are turned off by the user, the current system time zone is now fixed-offset (#575).

Changelog

Sourced from org.jetbrains.kotlinx:kotlinx-datetime's changelog.

0.8.0

Breaking changes:

• Deprecate TimeZone serialization (#576).

Additions:

• Add orNull functions for non-throwing construction of datetime entities (#68).
• Add parseOrNull extension functions for non-throwing attempts at parsing (#508).
• Introduce LocalIsoWeekDate for representing ISO week dates (#603).
• Introduce functions for finding the next or previous date with the given day-of-week (#129).

Tweaks and fixes:

• Fix bugs in Instant.until and Instant.periodUntil (#534).
• Always output seconds in the DateTimeComponents.Formats.RFC_1123 format (#608).
• On Kotlin/Native for Windows, whenever DST transitions are turned off by the user, the current system time zone is now fixed-offset (#575).

Changelog relative to version 0.8.0-rc02

No changes, only the version is increased.

0.8.0-rc02

Equivalent to rc01, but published without Instant and Clock. A separate compatibility artifact contains them for binary compatibility. Please see https://github.com/Kotlin/kotlinx-datetime/#deprecation-of-instant for details.

0.8.0-rc01

Breaking changes:

• Deprecate TimeZone serialization (#576).

Additions:

• Add orNull functions for non-throwing construction of datetime entities (#68).
• Add parseOrNull extension functions for non-throwing attempts at parsing (#508).
• Introduce LocalIsoWeekDate for representing ISO week dates (#603).
• Introduce functions for finding the next or previous date with the given day-of-week (#129).

Tweaks and fixes:

• Fix bugs in Instant.until and Instant.periodUntil (#534).
• Always output seconds in the DateTimeComponents.Formats.RFC_1123 format (#608).
• On Kotlin/Native for Windows, whenever DST transitions are turned off by the user, the current system time zone is now fixed-offset (#575).

Commits

• 591ce9b Merge branch 'dkhalanskyjb/remove-deprecated-instant' into version-0.8.0-normal
• a2eb074 Version 0.8.0
• f487af4 Describe the release procedures (#562)
• edc1183 Add contribution guidelines (#587)
• 4b485b7 Added templates to the issue creation wizard (#616)
• c2854bd Updated kotlinx.team.infra plugin and regenerated publication pipeline (#619)
• ef03b19 Version 0.8.0-rc02
• a1ac46e Use IANA tzdb 2026b (#620)
• c006a0f Version 0.8.0-rc01
• 4ae47ef Small improvements to various docs (#578)
• Additional commits viewable in compare view

Updates org.jetbrains.kotlinx:kotlinx-serialization-json from 1.11.0 to 1.12.0

Release notes

Sourced from org.jetbrains.kotlinx:kotlinx-serialization-json's releases.

v1.12.0

This release is based on Kotlin 2.4.10 and contains all of the changes from 1.12.0-RC.

Additionally, it includes a fix removing unnecessary leading whitespaces from Proguard rules (#3270), and two changes stabilizing kotlin.uuid.Uuid serializer (#3263) and kotlin.time.Instant serializers (#3261).

For your convenience, the changelog for 1.12.0-RC is duplicated below:

API stabilization and deprecations

A big portion of the Json and Core APIs has been stabilized. Most important ones include: @KeepGeneratedSerializer and @SerialInfo annotations, JsonNamingStrategy, and ContextualSerializer. Additionally, various descriptor builders such as listDescriptor and JsonElementBuilder's addAll functions are also stable and can be freely used. There is also one deprecation: ChunkedDecoder interface. Since there is no demand for it, we plan to remove it in the future. See details in the #3238, #3239, and #3216.

Also, kotlin.time.Instant and kotlin.uuid.Uuid serializers are no longer annotated with experimental annotations from the Kotlin standard library (see #3261 and #3263)

Performance improvements

We also improved performance in various areas. ASCII-specific parser (#3225) brings performance of decoding from Okio and kotlinx-io sources closer to decoding performance from String. #3220 makes decoding significantly faster in case JsonElement present in your serializable classes. And #3248 should bring overall performance improvements (up to 30%) on large strings.

Exceptions rework

We continue to improve exception handling in Json encoders and decoders. #3235 makes a big change around custom serializers and @Serializable classes constructors: from now on, every exception thrown during deserialization is wrapped by decoder into a JsonException. This way, it is more predictable to write a catch and it is easier to understand what went wrong: JsonDecodingException also includes context information such as Json path and input. Besides that, #3246 limits maximum nesting depth of Json document, so you will get a proper JsonDecodingException instead of a random stack overflow error.

CBOR improvements

CBOR format also gets many improvements in this release. The most important one is memory optimization for definitely-sized collections (#3191, #3192).

The others include:

• Encode unsigned integer types as positive integers (#3194) (thanks to Eyüp Can Akman)
• Correctly decode CborLabel values (#3195)
• Include actual tag info into CborDecodingException (#3197)

Protobuf improvements

Protocol buffers format received a big new feature: support for unknown fields. Using a new ProtoUnknownFieldHolder class, you can now decode and store unknown fields in Protobuf messages to retransmit them back later. See documentation updates and #2860 for details.

... (truncated)

Changelog

Sourced from org.jetbrains.kotlinx:kotlinx-serialization-json's changelog.

1.12.0 / 2026-10-19

This release is based on Kotlin 2.4.10 and contains all of the changes from 1.12.0-RC.

Additionally, it includes a fix removing unnecessary leading whitespaces from Proguard rules (#3270), and two changes stabilizing kotlin.uuid.Uuid serializer (#3263) and kotlin.time.Instant serializers (#3261).

For your convenience, the changelog for 1.12.0-RC is duplicated below:

API stabilization and deprecations

A big portion of the Json and Core APIs has been stabilized. Most important ones include: @KeepGeneratedSerializer and @SerialInfo annotations, JsonNamingStrategy, and ContextualSerializer. Additionally, various descriptor builders such as listDescriptor and JsonElementBuilder's addAll functions are also stable and can be freely used. There is also one deprecation: ChunkedDecoder interface. Since there is no demand for it, we plan to remove it in the future. See details in the #3238, #3239, and #3216.

Also, kotlin.time.Instant and kotlin.uuid.Uuid serializers are no longer annotated with experimental annotations from the Kotlin standard library (see [#3261](Kotlin/kotlinx.serialization#3261 and #3263)

Performance improvements

We also improved performance in various areas. ASCII-specific parser (#3225) brings performance of decoding from Okio and kotlinx-io sources closer to decoding performance from String. #3220 makes decoding significantly faster in case JsonElement present in your serializable classes. And #3248 should bring overall performance improvements (up to 30%) on large strings.

Exceptions rework

We continue to improve exception handling in Json encoders and decoders. #3235 makes a big change around custom serializers and @Serializable classes constructors: from now on, every exception thrown during deserialization is wrapped by decoder into a JsonException. This way, it is more predictable to write a catch and it is easier to understand what went wrong: JsonDecodingException also includes context information such as Json path and input. Besides that, #3246 limits maximum nesting depth of Json document, so you will get a proper JsonDecodingException instead of a random stack overflow error.

CBOR improvements

CBOR format also gets many improvements in this release. The most important one is memory optimization for definitely-sized collections (#3191, #3192).

... (truncated)

Commits

• 4c28c3e 1.12.0 release (#3295)
• abe8a96 Merge remote-tracking branch 'origin/master' into dev
• 952d17a Added Gradle task to prepare release (#3279)
• 6f30025 Remove Play verification files (#3266)
• 89b23ca Workaround watchosArm32 removal (#3291)
• 53932a0 Update links to Okio site and its docs (#3292)
• 3a5db3b Reduce the number of input fields for bug report
• 9ede0e2 Added templates to the issue creation wizard
• 5d3f884 Update Dokka to version 2.3.0-Beta (#3286)
• 1fe9a49 Suppress deprecation of nodejs in wasmWasi configuration (#3287)
• Additional commits viewable in compare view

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