Flagsmith Release Notes

2.263.0 (2026-08-19)

Features

• future: Delete a flag's segment override (#8307) (b3b2b31)
• future: Experimental new flag endpoint (#8102) (a013d7b)
• cohorts: add environment cohort CRUD API (#8248) (5737118)
• cohorts: apply cohort membership to Postgres identities (#8315) (65ce12c)
• create segment sources fake door modal (#8272) (dc99d65)
• identities: evaluate system traits when matching segments for edge identities (#8266) (f977732)
• load HubSpot script on staging (#8293) (75c1ad9)
• OIDC: Add OIDC token exchange endpoint (#8043) (14e860c)
• OIDC: Add Trust Relationship CRUD API (#8042) (8b4d846)
• OIDC: API Access tab with trust relationships UI (#8044) (b7676e4)
• Segments: Write rules as plain JSON (#8245) (8aca57e)

Bug Fixes

• api: update-traits returns 400 for malformed request body (#8199) (fccb632)
• edge: tolerate null system_traits in set_system_trait (#8270) (6c88198)
• experimentation: retry experiment computes on transient ClickHouse errors (#8273) (a62f3e5)
• OAuth: flagsmith login never completes for a new signup (#8281) (0ef78e8)
• remove segment_source_beta_requested fake door event (#8291) (608daaf)
• Segments: delete_segment task crashes when segment already deleted (#8136) (79fc54c)
• Segments: Flaky test fails because of unspecified Condition ordering (#8284) (dd04ba6)

Dependency Updates

• frontend: update dependency dompurify to v3.4.13 [security] (#8246) (15ab4ad)

Docs

• segments: Segment membership inspection (#7399) (bcce4d9)
• Update docs custom ssr to use new instance instead of singleton (#7653) (4b39c43)

2.262.0 (2026-08-11)

Features

changed CR ordering to from newest to oldest created (#8182) (7fa105a)

cohorts: add cohorts app with membership ledger models (#8211) (038d531)

cohorts: apply membership deltas to edge identities in batches (#8213) (377f203)

ds: add Link for navigation (#8179) (dc7f354)

experimentation: set 365-day retention on Firehose CloudWatch log groups (#8214) (d6da2ff)

expose distinct warehouse event names per connection (#8231) (e9de7ba)

Flagsmith on Flagsmith: Migrate the API over to the dashboard project (#8253) (1377f1e)

identities: add system_traits to engine identity document model (#8212) (bb69175)

metric event name combobox fed by warehouse events (#8234) (124dc1a)

onboarding: Org-level onboarding experiment events (#8242) (0ec7755)

theme toggle (#8128) (0e30489)

Bug Fixes

account for RBAC role query in org permission query-count test (#8260) (c761517)

auth: disable Google sign-in button until OAuth script is ready (#8201) (be02b3c)

experiment form UX fixes (#8251) (ef22e00)

experiment results polish (#8166) (c2d3cd6)

Features: add remove option to feature settings panel (#8203) (2786102)

make warehouse connection test failures more visible (#8207) (882ed14)

match Scale-Up plan ids case-insensitively (#8249) (ef41e05)

Multivariate: API accepts multivariate percentage splits over 100% (#8151) (fc33002)

resolve slow DB query in org permission check (#8228) (#8230) (7be291d)

SCIM: Discovery endpoints advertise attributes and capabilities we ignore (#8254) (f08b4e0)

signup: add a route to login when the email already has an account (#8177) (029995e)

tokens: text on surfaces fails WCAG AA contrast (#8236) (ed45277)

Utils: coerce non-string values before split in validateRule (#8198) (d4bf413)

webhooks: validate organisation and integration URLs against SSRF (#8220) (eeac6b3)

CI

pre-commit autoupdate (#8210) (47e9edf)

Docs

added RBAC to scale-up and enterprise instead of enterprise only (#8190) (3f8978c)

Document supported SCIM features and correct the deprovisioning and base URL guidance (#8221) (3a496c3)

Document the new Flagsmith CLI and deprecate the legacy CLI docs (#8216) (fb78687)

Refactoring

styles: semantic colors on links (#8181) (fce1bcd)

2.259.0 (2026-07-29)

Features

ClickHouse database setup SQL on the warehouse card and docs (#8112) (f8eeab0)

onboarding: wire the verify console to the real first-evaluation signal (#8132) (b8073b9)

push delivery of buffered events to external ClickHouse warehouses (#8107) (41b8b9f)

Redesign Compare Environments page (#7965) (acb3eb9)

verify ClickHouse events table and query customer event stats (#8116) (551ac44)

Bug Fixes

code-help: correct the identity and segment snippets (#8146) (4d32782)

code-help: make the SDK snippets runnable (#8145) (238babf)

docker: API image crashes on startup under a non-default runAsUser (#8158) (5e9eba9)

Dependency Updates

frontend: bump immutable, postcss, fast-uri and rspack [security] (#8156) (968e2c3)

Docs

Add stale flag detection documentation (#8142) (b14dd0c)

2.256.0 (2026-07-27)

Features

• clickhouse warehouse setup UI (#8028) (30bf03a)
• Environments: Track first evaluation with a new Onboarding interface (#8063) (3c9cc97)
• experimentation: enable Firehose CloudWatch error logging (#8068) (506b838)
• experimentation: provision per-org ingestion infra on external warehouse connect (#8052) (076e431)
• experimentation: seed per-environment ingestion destination in Redis (#8080) (e97cef6)
• experiments: expose metric direction on experiment metrics API (#8098) (8ac19b9)
• onboarding: funnel analytics for the new flow (#7960) (cfcaf1c)
• stateless warehouse connection test endpoint (#8060) (6bf7a23)
• Stream S3 organisation exports (#6612) (46ae7a0)

Bug Fixes

• ClickHouse form follow-ups from #8028 review (#8092) (80e50a2)
• docs: Google Tag Manager is not loading (#8094) (c174d2e)
• experiments: results page control-wins state, lift colours, dark mode (#8091) (44b2464)
• MCP: deploy the released image instead of redeploying the old one (#8093) (5e2c954)
• onboarding: Onboarding marker PUT too restrictive (#8097) (b9105aa)
• onboarding: review-feedback polish (#7989) (f7e9e17)
• organisations: Treat self-hosted licence as paid (#8066) (02a92d7)
• Preserve /api/v1 prefix in frontend proxy (Fixes #7974) (#8004) (6d9a4e5)
• remove v0.1 experiment flag toggle from create feature modal (#7907) (94ac7af)

Infrastructure (Flagsmith SaaS Only)

• Fix keep-alive (#8106) (96f54b8)

Dependency Updates

• frontend: update dependency dompurify to v3.4.12 [security] (#8064) (8abadae)

Performance Improvements

• features: Decouple feature list query cost from project version history (#8084) (ba98880)

Refactoring

• analytics: make trackEvent/trackTraits error-safe, tag onboarding variant when flags are ready (#8061) (36f579f)
• forms: migrate Input to TS (#7762) (7665750)
• styles: theme-adaptive shared code theme (#8023) (77c41d4)

2.255.0 (2026-07-21)

Features

ClickHouse bring-your-own-warehouse connections (#8020) (10a36ab)

experimentation: add per-organisation ingestion infrastructure service (#8035) (7266074)

oauth: First-party CLI client and per-client scope policy (#8029) (4df9bfb)

signup corporate-only experiment with exposure and new_signup events (#7979) (af83f8e)

unify base URL config and add region dropdown with manual override (#7842) (11a02b6)

Bug Fixes

import is free email domains json directly (#8053) (5785e8c)

Dependency Updates

API: Bump clickhouse-driver to 0.2.11 (#8049) (f388ee8)

frontend: update dependency @babel/core to v7.29.6 [security] (#8050) (e072d63)

frontend: update dependency body-parser to v2.3.0 [security] (#8051) (a0e79ea)

CI

E2E: Collapse previous Playwright result entries in the sticky PR comment (#8012) (0838195)

Fix documentation artefacts automatically (#8024) (ea9f723)

pre-commit autoupdate (#7482) (552fd04)

Renovate: Add force-update input to Renovate workflow (#8048) (b349c60)

Docs

add enterprise license upload documentation (#7196) (5dc98a2)

address review feedback on experimentation guides (#8016) (4932b51)

images: optimize images (#8010) (fb2a6ef)

2.254.0 (2026-07-16)

Features

auth: surface is_new_user in OAuth login responses (#8011) (2c000a2)

experimentation: default to control when rollout segment is created (#7905) (d53e0d7)

onboarding: "next quest" cards (#7941) (403b292)

Bug Fixes

e2e: staging E2E failures from shared-project pollution and onboarding flag race (#8027) (df9a777)

organisations: Enforce seat limit against licence-derived metadata (#8014) (3b840fd)

scim: Arbitrary usernames accepted via SCIM (#8019) (0e3c8c7)

tags: Duplicate system tags wedge GitHub tagging with MultipleObjectsReturned (#8013) (8aa41ab)

Performance Improvements

Segment Membership: Count all segments in one scan per environment (#8018) (b51e6b7)

2.253.0 (2026-07-15)

Features

• add unique analytics IDs to experiment, metric, and warehouse buttons (#7997) (d479a3d)
• API: Adopt the flagsmith entrypoint (#7901) (da194ca)
• API: Bundle the Core API OpenAPI schema (#7959) (a7b0d21)
• experiments: wizard UX improvements (#7978) (4510b72)
• use lifecycles API (#7793) (26ddf19)

Bug Fixes

• add navigation to identity page from segment members list (#7927) (f005081)
• API: Nested viewsets expose data across projects and organisations (#7945) (26a1e29)
• dark mode: move colour and shadow utilities from Bootstrap to tokens (#7982) (9ecdf6d)
• dark mode: resolve .text-secondary to the token, not Bootstrap (#7981) (3eeaf38)
• experimentation: poll warehouse status for created connections (#8001) (038238b)
• Experiments: Dark mode visibility in results page (#7980) (c92b305)
• features: preserve multivariate bucketing salt across feature state recreation (#7914) (62a8143)
• LaunchDarkly: Import processing not idempotent for completed requests (#7954) (5cfb9f4)
• make Headway bell icon clickable (#7925) (fd438ba)
• nav: stop project navbar items clipping off-screen (#7968) (2b4473b)
• return 400 when environment is null in featurestate update (#7957) (686bb9c)
• Segment Membership: Enabled for different organisations in backend and frontend (#7966) (aa4ad62)
• webhooks: accept 2xx status codes in webhook test endpoint (#7992) (7a6210c)

Dependency Updates

• api: update dependency django to v5.2.16 [security] (#7990) (1c73453)
• api: update dependency flagsmith-common to >=3.12.0,<4 (#8008) (0cb114b)
• api: update dependency flagsmith-private to >=0.11.0,<1 (#8006) (1042aad)
• MCP: Bump flagsmith-common to 3.12, pyfakefs to 6 (#8007) (e55b56d)

CI

• Renovate: Eagerly bump flagsmith-common and flagsmith-private (#8005) (d625997)

Docs

• add Experimentation guides (#7993) (1c7121d)
• update links for local evaluation and edge proxy docs (#7961) (f9560b6)