[turnipdabeets]

💡 Motivation and Context

Stacked on #637. 6.0's iOS/macOS Package.swift depends on ../FlutterFramework, which Flutter only generates from 3.41. With flutter: '>=3.27.0', apps on 3.27–3.40 resolve fine and then fail with an unclear SPM path error. Raising the pubspec floor to >=3.41.0 makes pub reject them up front.

• posthog_flutter/pubspec.yaml: flutter: '>=3.41.0'. Dart sdk stays >=3.6.0 — nothing in Flutter 3.41 forces it up, and raising it would change the package's language version (formatter style, lints) for no resolution benefit, since Flutter 3.41 bundles a newer Dart anyway.
• MIGRATION.md: the Flutter row now applies to every platform, and it says pub refuses to resolve on Flutter < 3.41, including Android-only apps.
• v6 changeset: one Breaking line.

No CI lane pins a Flutter version older than 3.41 (all use channel: stable), and the example app already requires >=3.44.0.

💚 How did you test it?

flutter pub get and dart analyze in posthog_flutter on Flutter 3.44.1 (one pre-existing unnecessary_import info).

📝 Checklist

• All commits are signed
• I reviewed the submitted code.
• I added tests to verify the changes.
• I updated the docs if needed.
• No breaking change or entry added to the changelog.

🤖 Agent context

Autonomy: Human-driven (agent-assisted)

Claude Code, from a pre-release review of the 6.0 integration PR.

🤖 Generated with Claude Code

[github-actions]

posthog-flutter Compliance Report

Date: 2026-11-08T17:37:02.512125+00:00
Duration: 369604ms

✅ All Tests Passed!

232/232 tests passed

---

Capture_V1 Tests

✅ 105/105 tests passed

View Details

Test	Status	Duration
Endpoint And Method.Targets V1 Endpoint	✅	197ms
Endpoint And Method.Does Not Use Legacy Endpoints	✅	120ms
Required Headers.Has Authorization Bearer Header	✅	117ms
Required Headers.Has Content Type Json	✅	119ms
Required Headers.Has Posthog Sdk Info Format	✅	116ms
Required Headers.Has Posthog Attempt Header	✅	116ms
Required Headers.Has Posthog Request Id	✅	116ms
Required Headers.Has Posthog Request Timestamp	✅	117ms
Required Headers.Has User Agent	✅	117ms
Body Format.Body Has Created At And Batch	✅	115ms
Body Format.No Api Key In Body	✅	115ms
Body Format.No Sent At In Body	✅	116ms
Event Format.Event Has Required Root Fields	✅	115ms
Event Format.Event Uuid Is Valid	✅	116ms
Event Format.Event Timestamp Is Rfc3339	✅	116ms
Event Format.Non Utc Event Timestamp Is Converted To Utc	✅	114ms
Event Format.Distinct Id Is String	✅	117ms
Event Format.Distinct Id At Root Not Properties	✅	117ms
Event Format.Custom Properties Preserved	✅	115ms
Event Format.Set Properties Preserved	✅	118ms
Event Format.Set Once Properties Preserved	✅	115ms
Event Format.Groups Properties Preserved	✅	115ms
Event Format.Sdk Generates Uuid If Not Provided	✅	115ms
Event Format.Event Has Required Root Fields Batch	✅	119ms
Event Format.Event Uuid Is Valid Batch	✅	119ms
Event Format.Event Timestamp Is Rfc3339 Batch	✅	118ms
Event Format.Distinct Id Is String Batch	✅	119ms
Event Format.Distinct Id At Root Not Properties Batch	✅	121ms
Event Format.Custom Properties Preserved Batch	✅	124ms
Event Format.Set Properties Preserved Batch	✅	120ms
Event Format.Set Once Properties Preserved Batch	✅	119ms
Event Format.Groups Properties Preserved Batch	✅	119ms
Event Format.Sdk Generates Uuid If Not Provided Batch	✅	119ms
Batch Behavior.Multiple Events In Single Batch	✅	123ms
Batch Behavior.Batch Envelope Smoke	✅	124ms
Batch Behavior.Flush With No Events Sends Nothing	✅	107ms
Batch Behavior.Flush At Triggers Batch	✅	1014ms
Batch Behavior.Created At Reflects Batch Creation Time	✅	116ms
Deduplication.Generates Unique Uuids	✅	123ms
Deduplication.Different Events Same Content Different Uuids	✅	117ms
Deduplication.Preserves Uuid On Retry	✅	5121ms
Deduplication.Preserves Timestamp On Retry	✅	5121ms
Deduplication.Preserves Uuid And Timestamp On Batch Retry	✅	5125ms
Deduplication.No Duplicate Events In Batch	✅	123ms
Header Behavior On Retry.Attempt Header Starts At One	✅	115ms
Header Behavior On Retry.Attempt Header Increments On Retry	✅	10126ms
Header Behavior On Retry.Request Id Preserved On Retry	✅	5120ms
Header Behavior On Retry.Different Requests Have Different Request Ids	✅	2227ms
Header Behavior On Retry.Request Timestamp Changes On Retry	✅	5122ms
Response Format Validation.Success Response Has Uuid Keyed Results	✅	113ms
Response Format Validation.Success Response Has Ok For Each Event	✅	117ms
Response Format Validation.Success No Retry After When All Ok	✅	116ms
Response Format Validation.Success Retry After Present When Retry Events	✅	117ms
Response Format Validation.Success No Retry After When Drop Only	✅	118ms
Response Format Validation.Response Echoes Request Id	✅	114ms
Retry Behavior.Retries On 408	✅	5117ms
Retry Behavior.Retries On 500	✅	5117ms
Retry Behavior.Retries On 503	✅	5119ms
Retry Behavior.Retries On 504	✅	5124ms
Retry Behavior.Retries On 404	✅	5122ms
Retry Behavior.Retries On 429	✅	5121ms
Retry Behavior.Retries On 502	✅	5122ms
Retry Behavior.Retryable Errors Have Retry After	✅	2116ms
Retry Behavior.Respects Retry After On Retryable Error	✅	8122ms
Retry Behavior.Does Not Retry On 400	✅	2117ms
Retry Behavior.Does Not Retry On 401	✅	2116ms
Retry Behavior.Does Not Retry On 402	✅	2117ms
Retry Behavior.Does Not Retry On 413	✅	2117ms
Retry Behavior.Does Not Retry On 415	✅	2117ms
Retry Behavior.Non Retryable Errors Have No Retry After	✅	2116ms
Retry Behavior.Implements Backoff	✅	12126ms
Partial Batch Handling.Handles 200 Full Success	✅	2116ms
Partial Batch Handling.Handles 200 With All Ok	✅	3121ms
Partial Batch Handling.Does Not Retry Dropped Events	✅	3119ms
Partial Batch Handling.Does Not Retry Warning Events	✅	3125ms
Partial Batch Handling.Prunes Ok Events On Partial Retry	✅	5122ms
Partial Batch Handling.Prunes Dropped Events On Partial Retry	✅	5121ms
Partial Batch Handling.Retries Only Retry Events From Partial	✅	5123ms
Partial Batch Handling.Partial Retry Preserves Uuids	✅	5121ms
Partial Batch Handling.Partial Retry Attempt Header Increments	✅	5121ms
Partial Batch Handling.Partial Retry Request Id Preserved	✅	5121ms
Partial Batch Handling.Respects Retry After On Partial	✅	5117ms
Partial Batch Handling.Unknown Result Treated As Terminal	✅	3119ms
Partial Batch Handling.Mixed Ok Drop Warning No Retry	✅	3123ms
Compression.Sends Gzip Content Encoding	✅	116ms
Compression.No Content Encoding When Disabled	✅	113ms
Compression.Compressed Body Is Decompressible	✅	113ms
Error Handling.Does Not Retry On Unknown 4Xx	✅	2116ms
Event Options.Cookieless Mode Override	✅	113ms
Event Options.Disable Skew Correction Override	✅	113ms
Event Options.Process Person Profile Override	✅	113ms
Event Options.Product Tour Id Override	✅	115ms
Event Options.Unset Options Omitted	✅	113ms
Event Options.Options Override In Batch	✅	117ms
Event Options.Unknown Option Passes Through	✅	113ms
Event Options.Option Value Is Not Converted	✅	113ms
Event Options.Lenient Bool Option Values Are Not Converted	✅	114ms
Event Options.Option Wins Over Legacy Property	✅	113ms
Event Options.Legacy Property Fills Unset Option	✅	112ms
Event Options.Null Option Falls Back To Legacy Property	✅	112ms
Property Layers.Caller Property Beats Registered Property	✅	113ms
Property Layers.Before Send Runs Last	✅	113ms
Fail Open.Empty Api Key Sends Nothing	✅	1109ms
Fail Open.Personal Api Key Sends Nothing	✅	1109ms
Geoip And Historical Migration.Historical Migration Absent By Default	✅	113ms

Capture_Ai_V1 Tests

✅ 110/110 tests passed

View Details

Test	Status	Duration
Endpoint And Method.Targets V1 Endpoint	✅	113ms
Endpoint And Method.Does Not Use Legacy Endpoints	✅	112ms
Endpoint And Method.Capture Does Not Reroute Ai Named Events	✅	114ms
Endpoint And Method.Capture Ai Does Not Reroute Non Ai Events	✅	112ms
Lane Isolation.Failing Ai Lane Does Not Delay Analytics	✅	5126ms
Required Headers.Has Authorization Bearer Header	✅	114ms
Required Headers.Has Content Type Json	✅	113ms
Required Headers.Has Posthog Sdk Info Format	✅	112ms
Required Headers.Has Posthog Attempt Header	✅	113ms
Required Headers.Has Posthog Request Id	✅	113ms
Required Headers.Has Posthog Request Timestamp	✅	113ms
Required Headers.Has User Agent	✅	113ms
Body Format.Body Has Created At And Batch	✅	113ms
Body Format.No Api Key In Body	✅	113ms
Body Format.No Sent At In Body	✅	112ms
Event Format.Event Has Required Root Fields	✅	112ms
Event Format.Event Uuid Is Valid	✅	112ms
Event Format.Event Timestamp Is Rfc3339	✅	112ms
Event Format.Non Utc Event Timestamp Is Converted To Utc	✅	113ms
Event Format.Distinct Id Is String	✅	112ms
Event Format.Distinct Id At Root Not Properties	✅	112ms
Event Format.Custom Properties Preserved	✅	112ms
Event Format.Set Properties Preserved	✅	112ms
Event Format.Set Once Properties Preserved	✅	112ms
Event Format.Groups Properties Preserved	✅	113ms
Event Format.Sdk Generates Uuid If Not Provided	✅	112ms
Event Format.Event Has Required Root Fields Batch	✅	116ms
Event Format.Event Uuid Is Valid Batch	✅	116ms
Event Format.Event Timestamp Is Rfc3339 Batch	✅	115ms
Event Format.Distinct Id Is String Batch	✅	117ms
Event Format.Distinct Id At Root Not Properties Batch	✅	115ms
Event Format.Custom Properties Preserved Batch	✅	116ms
Event Format.Set Properties Preserved Batch	✅	116ms
Event Format.Set Once Properties Preserved Batch	✅	116ms
Event Format.Groups Properties Preserved Batch	✅	116ms
Event Format.Sdk Generates Uuid If Not Provided Batch	✅	116ms
Batch Behavior.Multiple Events In Single Batch	✅	120ms
Batch Behavior.Batch Envelope Smoke	✅	118ms
Batch Behavior.Flush At Triggers Batch	✅	1011ms
Batch Behavior.Created At Reflects Batch Creation Time	✅	113ms
Deduplication.Generates Unique Uuids	✅	120ms
Deduplication.Different Events Same Content Different Uuids	✅	115ms
Deduplication.Preserves Uuid On Retry	✅	5118ms
Deduplication.Preserves Timestamp On Retry	✅	5118ms
Deduplication.Preserves Uuid And Timestamp On Batch Retry	✅	5120ms
Deduplication.No Duplicate Events In Batch	✅	121ms
Header Behavior On Retry.Attempt Header Starts At One	✅	114ms
Header Behavior On Retry.Attempt Header Increments On Retry	✅	10118ms
Header Behavior On Retry.Request Id Preserved On Retry	✅	5118ms
Header Behavior On Retry.Different Requests Have Different Request Ids	✅	2225ms
Header Behavior On Retry.Request Timestamp Changes On Retry	✅	5119ms
Response Format Validation.Success Response Has Uuid Keyed Results	✅	113ms
Response Format Validation.Success Response Has Ok For Each Event	✅	116ms
Response Format Validation.Success No Retry After When All Ok	✅	115ms
Response Format Validation.Success Retry After Present When Retry Events	✅	115ms
Response Format Validation.Success No Retry After When Drop Only	✅	115ms
Response Format Validation.Response Echoes Request Id	✅	112ms
Retry Behavior.Retries On 408	✅	5118ms
Retry Behavior.Retries On 500	✅	5119ms
Retry Behavior.Retries On 503	✅	5119ms
Retry Behavior.Retries On 504	✅	5119ms
Retry Behavior.Retries On 404	✅	5114ms
Retry Behavior.Retries On 429	✅	5119ms
Retry Behavior.Retries On 502	✅	5119ms
Retry Behavior.Retryable Errors Have Retry After	✅	2116ms
Retry Behavior.Respects Retry After On Retryable Error	✅	8122ms
Retry Behavior.Does Not Retry On 400	✅	2117ms
Retry Behavior.Does Not Retry On 401	✅	2116ms
Retry Behavior.Does Not Retry On 402	✅	2116ms
Retry Behavior.Does Not Retry On 413	✅	2116ms
Retry Behavior.Does Not Retry On 415	✅	2116ms
Retry Behavior.Non Retryable Errors Have No Retry After	✅	2116ms
Retry Behavior.Implements Backoff	✅	12123ms
Partial Batch Handling.Handles 200 Full Success	✅	2114ms
Partial Batch Handling.Handles 200 With All Ok	✅	3120ms
Partial Batch Handling.Does Not Retry Dropped Events	✅	3119ms
Partial Batch Handling.Does Not Retry Warning Events	✅	3118ms
Partial Batch Handling.Prunes Ok Events On Partial Retry	✅	5121ms
Partial Batch Handling.Prunes Dropped Events On Partial Retry	✅	5127ms
Partial Batch Handling.Retries Only Retry Events From Partial	✅	5122ms
Partial Batch Handling.Partial Retry Preserves Uuids	✅	5121ms
Partial Batch Handling.Partial Retry Attempt Header Increments	✅	5118ms
Partial Batch Handling.Partial Retry Request Id Preserved	✅	5121ms
Partial Batch Handling.Respects Retry After On Partial	✅	5119ms
Partial Batch Handling.Unknown Result Treated As Terminal	✅	3119ms
Partial Batch Handling.Mixed Ok Drop Warning No Retry	✅	3122ms
Compression.Sends Gzip Content Encoding	✅	114ms
Compression.No Content Encoding When Disabled	✅	112ms
Compression.Compressed Body Is Decompressible	✅	113ms
Error Handling.Does Not Retry On Unknown 4Xx	✅	2115ms
Event Options.Cookieless Mode Override	✅	114ms
Event Options.Disable Skew Correction Override	✅	112ms
Event Options.Process Person Profile Override	✅	112ms
Event Options.Product Tour Id Override	✅	113ms
Event Options.Unset Options Omitted	✅	112ms
Event Options.Options Override In Batch	✅	116ms
Event Options.Unknown Option Passes Through	✅	114ms
Event Options.Option Value Is Not Converted	✅	112ms
Event Options.Lenient Bool Option Values Are Not Converted	✅	112ms
Event Options.Option Wins Over Legacy Property	✅	113ms
Event Options.Legacy Property Fills Unset Option	✅	112ms
Event Options.Null Option Falls Back To Legacy Property	✅	112ms
Event Size.Event Over Ceiling Is Not Sent	✅	4033ms
Event Size.Over Ceiling Drop Is Reported Or Logged Without Content	✅	2177ms
Event Size.Batches Close Before Byte Target	✅	6102ms
Geoip And Historical Migration.Historical Migration Absent By Default	✅	115ms
Property Layers.Caller Property Beats Registered Property	✅	112ms
Property Layers.Before Send Runs Last	✅	112ms
Fail Open.Empty Api Key Sends Nothing	✅	1111ms
Fail Open.Personal Api Key Sends Nothing	✅	1110ms

Feature_Flags Tests

✅ 17/17 tests passed

View Details

Test	Status	Duration
Request Payload.Request With Person Properties Device Id	✅	18ms
Request Payload.Flags Request Uses V2 Query Param	✅	13ms
Request Payload.Flags Request Hits Flags Path Not Decide	✅	10ms
Request Payload.Flags Request Omits Authorization Header	✅	11ms
Request Payload.Token In Flags Body Matches Init	✅	10ms
Request Payload.Groups Round Trip	✅	14ms
Request Payload.Groups Default To Empty Object	✅	11ms
Request Payload.Disable Geoip False Propagates As Geoip Disable False	✅	10ms
Request Payload.Disable Geoip Omitted Defaults To False	✅	10ms
Request Payload.Flag Keys To Evaluate Contains Only Requested Key	✅	10ms
Request Lifecycle.No Flags Request On Init Alone	✅	5ms
Request Lifecycle.No Flags Request On Normal Capture	✅	111ms
Request Lifecycle.Two Flag Calls Produce Two Remote Requests	✅	16ms
Request Lifecycle.Mock Response Value Is Returned To Caller	✅	11ms
Retry Behavior.Retries Flags On 502	✅	315ms
Retry Behavior.Retries Flags On 504	✅	315ms
Side Effect Events.Get Feature Flag Captures Feature Flag Called Event	✅	116ms

[marandaneto]

The code looks good; no qualifying findings. Verdict: correct.